From c6e666345e1b79c62ba82339cc7d55a89cb73f88 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Thu, 2 Aug 2012 09:48:50 +0200 Subject: block: split discard into aligned requests When a disk has large discard_granularity and small max_discard_sectors, discards are not split with optimal alignment. In the limit case of discard_granularity == max_discard_sectors, no request could be aligned correctly, so in fact you might end up with no discarded logical blocks at all. Another example that helps showing the condition in the patch is with discard_granularity == 64, max_discard_sectors == 128. A request that is submitted for 256 sectors 2..257 will be split in two: 2..129, 130..257. However, only 2 aligned blocks out of 3 are included in the request; 128..191 may be left intact and not discarded. With this patch, the first request will be truncated to ensure good alignment of what's left, and the split will be 2..127, 128..255, 256..257. The patch will also take into account the discard_alignment. At most one extra request will be introduced, because the first request will be reduced by at most granularity-1 sectors, and granularity must be less than max_discard_sectors. Subsequent requests will run on round_down(max_discard_sectors, granularity) sectors, as in the current code. Signed-off-by: Paolo Bonzini Acked-by: Vivek Goyal Tested-by: Mike Snitzer Signed-off-by: Jens Axboe --- include/linux/blkdev.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include') diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 4e72a9d48232..281516ae8b4e 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -1139,6 +1139,16 @@ static inline int queue_limit_discard_alignment(struct queue_limits *lim, sector & (lim->discard_granularity - 1); } +static inline int bdev_discard_alignment(struct block_device *bdev) +{ + struct request_queue *q = bdev_get_queue(bdev); + + if (bdev != bdev->bd_contains) + return bdev->bd_part->discard_alignment; + + return q->limits.discard_alignment; +} + static inline unsigned int queue_discard_zeroes_data(struct request_queue *q) { if (q->limits.max_discard_sectors && q->limits.discard_zeroes_data == 1) -- cgit v1.2.3-71-gd317 From 85b9f66a41eb8ee3f1dfc95707412705463cdd97 Mon Sep 17 00:00:00 2001 From: Asias He Date: Thu, 2 Aug 2012 23:42:04 +0200 Subject: block: Add blk_bio_map_sg() helper Add a helper to map a bio to a scatterlist, modelled after blk_rq_map_sg. This helper is useful for any driver that wants to create a scatterlist from its ->make_request_fn method. Changes in v2: - Use __blk_segment_map_sg to avoid duplicated code - Add cocbook style function comment Cc: Rusty Russell Cc: Christoph Hellwig Cc: Tejun Heo Cc: Shaohua Li Cc: "Michael S. Tsirkin" Cc: kvm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: virtualization@lists.linux-foundation.org Signed-off-by: Christoph Hellwig Signed-off-by: Minchan Kim Signed-off-by: Asias He Signed-off-by: Jens Axboe --- block/blk-merge.c | 37 +++++++++++++++++++++++++++++++++++++ include/linux/blkdev.h | 2 ++ 2 files changed, 39 insertions(+) (limited to 'include') diff --git a/block/blk-merge.c b/block/blk-merge.c index 576b68e79248..e76279e41162 100644 --- a/block/blk-merge.c +++ b/block/blk-merge.c @@ -209,6 +209,43 @@ int blk_rq_map_sg(struct request_queue *q, struct request *rq, } EXPORT_SYMBOL(blk_rq_map_sg); +/** + * blk_bio_map_sg - map a bio to a scatterlist + * @q: request_queue in question + * @bio: bio being mapped + * @sglist: scatterlist being mapped + * + * Note: + * Caller must make sure sg can hold bio->bi_phys_segments entries + * + * Will return the number of sg entries setup + */ +int blk_bio_map_sg(struct request_queue *q, struct bio *bio, + struct scatterlist *sglist) +{ + struct bio_vec *bvec, *bvprv; + struct scatterlist *sg; + int nsegs, cluster; + unsigned long i; + + nsegs = 0; + cluster = blk_queue_cluster(q); + + bvprv = NULL; + sg = NULL; + bio_for_each_segment(bvec, bio, i) { + __blk_segment_map_sg(q, bvec, sglist, &bvprv, &sg, + &nsegs, &cluster); + } /* segments in bio */ + + if (sg) + sg_mark_end(sg); + + BUG_ON(bio->bi_phys_segments && nsegs > bio->bi_phys_segments); + return nsegs; +} +EXPORT_SYMBOL(blk_bio_map_sg); + static inline int ll_new_hw_segment(struct request_queue *q, struct request *req, struct bio *bio) diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 281516ae8b4e..dc632975d54f 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -894,6 +894,8 @@ extern void blk_queue_flush_queueable(struct request_queue *q, bool queueable); extern struct backing_dev_info *blk_get_backing_dev_info(struct block_device *bdev); extern int blk_rq_map_sg(struct request_queue *, struct request *, struct scatterlist *); +extern int blk_bio_map_sg(struct request_queue *q, struct bio *bio, + struct scatterlist *sglist); extern void blk_dump_rq_flags(struct request *, char *); extern long nr_blockdev_pages(void); -- cgit v1.2.3-71-gd317 From 276f0f5d157bb4a816053f4f3a941dbcd4f76556 Mon Sep 17 00:00:00 2001 From: Shaohua Li Date: Thu, 9 Aug 2012 15:20:23 +0200 Subject: block: disable discard request merge temporarily The SCSI discard request merge never worked, and looks no solution for in future, let's disable it temporarily. Signed-off-by: Shaohua Li Reviewed-by: Christoph Hellwig Signed-off-by: Jens Axboe --- include/linux/blkdev.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index dc632975d54f..4a2ab7c85393 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -601,7 +601,7 @@ static inline void blk_clear_rl_full(struct request_list *rl, bool sync) * it already be started by driver. */ #define RQ_NOMERGE_FLAGS \ - (REQ_NOMERGE | REQ_STARTED | REQ_SOFTBARRIER | REQ_FLUSH | REQ_FUA) + (REQ_NOMERGE | REQ_STARTED | REQ_SOFTBARRIER | REQ_FLUSH | REQ_FUA | REQ_DISCARD) #define rq_mergeable(rq) \ (!((rq)->cmd_flags & RQ_NOMERGE_FLAGS) && \ (((rq)->cmd_flags & REQ_DISCARD) || \ -- cgit v1.2.3-71-gd317 From c499144c3b69a657b5dfd707b35871e066fabd3a Mon Sep 17 00:00:00 2001 From: Archit Taneja Date: Wed, 8 Aug 2012 14:28:54 +0530 Subject: OMAPDSS: DPI: Maintain our own timings field in driver data The DPI driver currently relies on the timings in omap_dss_device struct to configure the DISPC accordingly. This makes the DPI interface driver dependent on the omap_dss_device struct. Make the DPI driver data maintain it's own timings field. The panel driver is expected to call dpi_set_timings()(renamed to omapdss_dpi_set_timings) to set these timings before the panel is enabled. In the set_timings() op, we still ensure that the omap_dss_device timings (dssdev->panel.timings) are configured. This will later be configured only by the DPI panel drivers. Signed-off-by: Archit Taneja --- drivers/video/omap2/displays/panel-generic-dpi.c | 4 +++- drivers/video/omap2/displays/panel-lgphilips-lb035q02.c | 2 ++ drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c | 2 ++ drivers/video/omap2/displays/panel-picodlp.c | 3 +++ drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c | 2 ++ drivers/video/omap2/displays/panel-tfp410.c | 4 +++- drivers/video/omap2/displays/panel-tpo-td043mtea1.c | 4 +++- drivers/video/omap2/dss/dpi.c | 11 +++++++---- include/video/omapdss.h | 4 ++-- 9 files changed, 27 insertions(+), 9 deletions(-) (limited to 'include') diff --git a/drivers/video/omap2/displays/panel-generic-dpi.c b/drivers/video/omap2/displays/panel-generic-dpi.c index 69e78a55283a..8d4e102bb0e6 100644 --- a/drivers/video/omap2/displays/panel-generic-dpi.c +++ b/drivers/video/omap2/displays/panel-generic-dpi.c @@ -565,6 +565,8 @@ static int generic_dpi_panel_power_on(struct omap_dss_device *dssdev) if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) return 0; + omapdss_dpi_set_timings(dssdev, &dssdev->panel.timings); + r = omapdss_dpi_display_enable(dssdev); if (r) goto err0; @@ -726,7 +728,7 @@ static void generic_dpi_panel_set_timings(struct omap_dss_device *dssdev, mutex_lock(&drv_data->lock); - dpi_set_timings(dssdev, timings); + omapdss_dpi_set_timings(dssdev, timings); mutex_unlock(&drv_data->lock); } diff --git a/drivers/video/omap2/displays/panel-lgphilips-lb035q02.c b/drivers/video/omap2/displays/panel-lgphilips-lb035q02.c index 802807798846..7e52aee36f4f 100644 --- a/drivers/video/omap2/displays/panel-lgphilips-lb035q02.c +++ b/drivers/video/omap2/displays/panel-lgphilips-lb035q02.c @@ -55,6 +55,8 @@ static int lb035q02_panel_power_on(struct omap_dss_device *dssdev) if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) return 0; + omapdss_dpi_set_timings(dssdev, &dssdev->panel.timings); + r = omapdss_dpi_display_enable(dssdev); if (r) goto err0; diff --git a/drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c b/drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c index b122b0f31c43..e501c401ccb0 100644 --- a/drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c +++ b/drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c @@ -175,6 +175,8 @@ static int nec_8048_panel_power_on(struct omap_dss_device *dssdev) if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) return 0; + omapdss_dpi_set_timings(dssdev, &dssdev->panel.timings); + r = omapdss_dpi_display_enable(dssdev); if (r) goto err0; diff --git a/drivers/video/omap2/displays/panel-picodlp.c b/drivers/video/omap2/displays/panel-picodlp.c index 2d35bd388860..0d7a8ff50f16 100644 --- a/drivers/video/omap2/displays/panel-picodlp.c +++ b/drivers/video/omap2/displays/panel-picodlp.c @@ -377,6 +377,9 @@ static int picodlp_panel_power_on(struct omap_dss_device *dssdev) * then only i2c commands can be successfully sent to dpp2600 */ msleep(1000); + + omapdss_dpi_set_timings(dssdev, &dssdev->panel.timings); + r = omapdss_dpi_display_enable(dssdev); if (r) { dev_err(&dssdev->dev, "failed to enable DPI\n"); diff --git a/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c b/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c index bd86ba9ccf76..1486a81fc8b6 100644 --- a/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c +++ b/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c @@ -142,6 +142,8 @@ static int sharp_ls_power_on(struct omap_dss_device *dssdev) if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) return 0; + omapdss_dpi_set_timings(dssdev, &dssdev->panel.timings); + r = omapdss_dpi_display_enable(dssdev); if (r) goto err0; diff --git a/drivers/video/omap2/displays/panel-tfp410.c b/drivers/video/omap2/displays/panel-tfp410.c index 40cc0cfa5d17..c6f950321f21 100644 --- a/drivers/video/omap2/displays/panel-tfp410.c +++ b/drivers/video/omap2/displays/panel-tfp410.c @@ -65,6 +65,8 @@ static int tfp410_power_on(struct omap_dss_device *dssdev) if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) return 0; + omapdss_dpi_set_timings(dssdev, &dssdev->panel.timings); + r = omapdss_dpi_display_enable(dssdev); if (r) goto err0; @@ -231,7 +233,7 @@ static void tfp410_set_timings(struct omap_dss_device *dssdev, struct panel_drv_data *ddata = dev_get_drvdata(&dssdev->dev); mutex_lock(&ddata->lock); - dpi_set_timings(dssdev, timings); + omapdss_dpi_set_timings(dssdev, timings); mutex_unlock(&ddata->lock); } diff --git a/drivers/video/omap2/displays/panel-tpo-td043mtea1.c b/drivers/video/omap2/displays/panel-tpo-td043mtea1.c index fa7baa650ae0..ecb163e4cfaf 100644 --- a/drivers/video/omap2/displays/panel-tpo-td043mtea1.c +++ b/drivers/video/omap2/displays/panel-tpo-td043mtea1.c @@ -337,6 +337,8 @@ static int tpo_td043_enable_dss(struct omap_dss_device *dssdev) if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) return 0; + omapdss_dpi_set_timings(dssdev, &dssdev->panel.timings); + r = omapdss_dpi_display_enable(dssdev); if (r) goto err0; @@ -480,7 +482,7 @@ static void tpo_td043_remove(struct omap_dss_device *dssdev) static void tpo_td043_set_timings(struct omap_dss_device *dssdev, struct omap_video_timings *timings) { - dpi_set_timings(dssdev, timings); + omapdss_dpi_set_timings(dssdev, timings); } static int tpo_td043_check_timings(struct omap_dss_device *dssdev, diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c index 15c2c3301f48..97c7a10bc9ff 100644 --- a/drivers/video/omap2/dss/dpi.c +++ b/drivers/video/omap2/dss/dpi.c @@ -41,6 +41,7 @@ static struct { struct mutex lock; + struct omap_video_timings timings; struct dss_lcd_mgr_config mgr_config; } dpi; @@ -123,7 +124,7 @@ static int dpi_set_dispc_clk(struct omap_dss_device *dssdev, static int dpi_set_mode(struct omap_dss_device *dssdev) { - struct omap_video_timings *t = &dssdev->panel.timings; + struct omap_video_timings *t = &dpi.timings; int lck_div = 0, pck_div = 0; unsigned long fck = 0; unsigned long pck; @@ -272,8 +273,8 @@ void omapdss_dpi_display_disable(struct omap_dss_device *dssdev) } EXPORT_SYMBOL(omapdss_dpi_display_disable); -void dpi_set_timings(struct omap_dss_device *dssdev, - struct omap_video_timings *timings) +void omapdss_dpi_set_timings(struct omap_dss_device *dssdev, + struct omap_video_timings *timings) { int r; @@ -281,7 +282,9 @@ void dpi_set_timings(struct omap_dss_device *dssdev, mutex_lock(&dpi.lock); + dpi.timings = *timings; dssdev->panel.timings = *timings; + if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) { r = dispc_runtime_get(); if (r) @@ -296,7 +299,7 @@ void dpi_set_timings(struct omap_dss_device *dssdev, mutex_unlock(&dpi.lock); } -EXPORT_SYMBOL(dpi_set_timings); +EXPORT_SYMBOL(omapdss_dpi_set_timings); int dpi_check_timings(struct omap_dss_device *dssdev, struct omap_video_timings *timings) diff --git a/include/video/omapdss.h b/include/video/omapdss.h index a6267a2d292b..be2cb6b7fba5 100644 --- a/include/video/omapdss.h +++ b/include/video/omapdss.h @@ -734,8 +734,8 @@ void omapdss_dsi_display_disable(struct omap_dss_device *dssdev, int omapdss_dpi_display_enable(struct omap_dss_device *dssdev); void omapdss_dpi_display_disable(struct omap_dss_device *dssdev); -void dpi_set_timings(struct omap_dss_device *dssdev, - struct omap_video_timings *timings); +void omapdss_dpi_set_timings(struct omap_dss_device *dssdev, + struct omap_video_timings *timings); int dpi_check_timings(struct omap_dss_device *dssdev, struct omap_video_timings *timings); -- cgit v1.2.3-71-gd317 From e67458a831e280d346c87d22eed87e3e8697e077 Mon Sep 17 00:00:00 2001 From: Archit Taneja Date: Mon, 13 Aug 2012 14:17:30 +0530 Subject: OMAPDSS: DSI: Maintain own copy of timings in driver data The DSI driver currently relies on the timings in omap_dss_device struct to configure the DISPC and DSI blocks accordingly. This makes the DSI interface driver dependent on the omap_dss_device struct. Make the DSI driver data maintain it's own timings field. A DSI video mode panel driver is expected to call omapdss_dsi_set_timings() to set these timings before the panel is enabled. Signed-off-by: Archit Taneja --- drivers/video/omap2/dss/dsi.c | 58 +++++++++++++++++++++++++++---------------- include/video/omapdss.h | 2 ++ 2 files changed, 38 insertions(+), 22 deletions(-) (limited to 'include') diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c index b07e8864f82f..4787e469131b 100644 --- a/drivers/video/omap2/dss/dsi.c +++ b/drivers/video/omap2/dss/dsi.c @@ -333,6 +333,7 @@ struct dsi_data { unsigned scp_clk_refcount; struct dss_lcd_mgr_config mgr_config; + struct omap_video_timings timings; }; struct dsi_packet_sent_handler_data { @@ -3610,9 +3611,10 @@ static void dsi_config_vp_num_line_buffers(struct omap_dss_device *dssdev) int num_line_buffers; if (dssdev->panel.dsi_mode == OMAP_DSS_DSI_VIDEO_MODE) { + struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); int bpp = dsi_get_pixel_size(dssdev->panel.dsi_pix_fmt); unsigned line_buf_size = dsi_get_line_buf_size(dsidev); - struct omap_video_timings *timings = &dssdev->panel.timings; + struct omap_video_timings *timings = &dsi->timings; /* * Don't use line buffers if width is greater than the video * port's line buffer size @@ -3741,7 +3743,7 @@ static void dsi_config_cmd_mode_interleaving(struct omap_dss_device *dssdev) int ddr_clk_pre, ddr_clk_post, enter_hs_mode_lat, exit_hs_mode_lat; int tclk_trail, ths_exit, exiths_clk; bool ddr_alwon; - struct omap_video_timings *timings = &dssdev->panel.timings; + struct omap_video_timings *timings = &dsi->timings; int bpp = dsi_get_pixel_size(dssdev->panel.dsi_pix_fmt); int ndl = dsi->num_lanes_used - 1; int dsi_fclk_hsdiv = dssdev->clocks.dsi.regm_dsi + 1; @@ -3994,7 +3996,7 @@ static void dsi_proto_timings(struct omap_dss_device *dssdev) int vbp = dssdev->panel.dsi_vm_data.vbp; int window_sync = dssdev->panel.dsi_vm_data.window_sync; bool hsync_end = dssdev->panel.dsi_vm_data.vp_hsync_end; - struct omap_video_timings *timings = &dssdev->panel.timings; + struct omap_video_timings *timings = &dsi->timings; int bpp = dsi_get_pixel_size(dssdev->panel.dsi_pix_fmt); int tl, t_he, width_bytes; @@ -4103,6 +4105,7 @@ EXPORT_SYMBOL(omapdss_dsi_configure_pins); int dsi_enable_video_output(struct omap_dss_device *dssdev, int channel) { struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev); + struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); int bpp = dsi_get_pixel_size(dssdev->panel.dsi_pix_fmt); u8 data_type; u16 word_count; @@ -4133,7 +4136,7 @@ int dsi_enable_video_output(struct omap_dss_device *dssdev, int channel) /* MODE, 1 = video mode */ REG_FLD_MOD(dsidev, DSI_VC_CTRL(channel), 1, 4, 4); - word_count = DIV_ROUND_UP(dssdev->panel.timings.x_res * bpp, 8); + word_count = DIV_ROUND_UP(dsi->timings.x_res * bpp, 8); dsi_vc_write_long_header(dsidev, channel, data_type, word_count, 0); @@ -4367,7 +4370,6 @@ static int dsi_display_init_dispc(struct omap_dss_device *dssdev) { struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev); struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); - struct omap_video_timings timings; int r; u32 irq = 0; @@ -4376,14 +4378,14 @@ static int dsi_display_init_dispc(struct omap_dss_device *dssdev) dssdev->driver->get_resolution(dssdev, &dw, &dh); - timings.x_res = dw; - timings.y_res = dh; - timings.hsw = 1; - timings.hfp = 1; - timings.hbp = 1; - timings.vsw = 1; - timings.vfp = 0; - timings.vbp = 0; + dsi->timings.x_res = dw; + dsi->timings.y_res = dh; + dsi->timings.hsw = 1; + dsi->timings.hfp = 1; + dsi->timings.hbp = 1; + dsi->timings.vsw = 1; + dsi->timings.vfp = 0; + dsi->timings.vbp = 0; irq = dispc_mgr_get_framedone_irq(dssdev->manager->id); @@ -4397,8 +4399,6 @@ static int dsi_display_init_dispc(struct omap_dss_device *dssdev) dsi->mgr_config.stallmode = true; dsi->mgr_config.fifohandcheck = true; } else { - timings = dssdev->panel.timings; - dsi->mgr_config.stallmode = false; dsi->mgr_config.fifohandcheck = false; } @@ -4407,14 +4407,14 @@ static int dsi_display_init_dispc(struct omap_dss_device *dssdev) * override interlace, logic level and edge related parameters in * omap_video_timings with default values */ - timings.interlace = false; - timings.hsync_level = OMAPDSS_SIG_ACTIVE_HIGH; - timings.vsync_level = OMAPDSS_SIG_ACTIVE_HIGH; - timings.data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE; - timings.de_level = OMAPDSS_SIG_ACTIVE_HIGH; - timings.sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES; + dsi->timings.interlace = false; + dsi->timings.hsync_level = OMAPDSS_SIG_ACTIVE_HIGH; + dsi->timings.vsync_level = OMAPDSS_SIG_ACTIVE_HIGH; + dsi->timings.data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE; + dsi->timings.de_level = OMAPDSS_SIG_ACTIVE_HIGH; + dsi->timings.sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES; - dss_mgr_set_timings(dssdev->manager, &timings); + dss_mgr_set_timings(dssdev->manager, &dsi->timings); r = dsi_configure_dispc_clocks(dssdev); if (r) @@ -4653,6 +4653,20 @@ int omapdss_dsi_enable_te(struct omap_dss_device *dssdev, bool enable) } EXPORT_SYMBOL(omapdss_dsi_enable_te); +void omapdss_dsi_set_timings(struct omap_dss_device *dssdev, + struct omap_video_timings *timings) +{ + struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev); + struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); + + mutex_lock(&dsi->lock); + + dsi->timings = *timings; + + mutex_unlock(&dsi->lock); +} +EXPORT_SYMBOL(omapdss_dsi_set_timings); + static int __init dsi_init_display(struct omap_dss_device *dssdev) { struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev); diff --git a/include/video/omapdss.h b/include/video/omapdss.h index be2cb6b7fba5..47cfc170100e 100644 --- a/include/video/omapdss.h +++ b/include/video/omapdss.h @@ -719,6 +719,8 @@ int omap_dispc_wait_for_irq_interruptible_timeout(u32 irqmask, void omapdss_dsi_vc_enable_hs(struct omap_dss_device *dssdev, int channel, bool enable); int omapdss_dsi_enable_te(struct omap_dss_device *dssdev, bool enable); +void omapdss_dsi_set_timings(struct omap_dss_device *dssdev, + struct omap_video_timings *timings); int omap_dsi_update(struct omap_dss_device *dssdev, int channel, void (*callback)(int, void *), void *data); -- cgit v1.2.3-71-gd317 From e352574db53a15789339cf09527604f7e23de2e4 Mon Sep 17 00:00:00 2001 From: Archit Taneja Date: Thu, 9 Aug 2012 15:23:43 +0530 Subject: OMAPDSS: DSI: Add function to set panel size for command mode panels DSI command mode panels don't need to configure a full set of timings to configure DSI, they only require the width and the height of the panel in pixels. Use omapdss_dsi_set_size for command mode panels, omapdss_dsi_set_timings is meant for video mode panels. When performing rotation via chaning the address mode of the panel, we would need to swap width and height when doing 90 or 270 rotation. Make sure that omapdss_dsi_set_size() makes the new width and height visible to DSI. Signed-off-by: Archit Taneja --- drivers/video/omap2/displays/panel-taal.c | 14 ++++++++++++++ drivers/video/omap2/dss/dsi.c | 23 ++++++++++++++++------- include/video/omapdss.h | 1 + 3 files changed, 31 insertions(+), 7 deletions(-) (limited to 'include') diff --git a/drivers/video/omap2/displays/panel-taal.c b/drivers/video/omap2/displays/panel-taal.c index 3f5acc7771da..c3bca2fb15d4 100644 --- a/drivers/video/omap2/displays/panel-taal.c +++ b/drivers/video/omap2/displays/panel-taal.c @@ -1060,6 +1060,9 @@ static int taal_power_on(struct omap_dss_device *dssdev) goto err0; }; + omapdss_dsi_set_size(dssdev, dssdev->panel.timings.x_res, + dssdev->panel.timings.y_res); + r = omapdss_dsi_display_enable(dssdev); if (r) { dev_err(&dssdev->dev, "failed to enable DSI\n"); @@ -1487,6 +1490,7 @@ static int taal_get_te(struct omap_dss_device *dssdev) static int taal_rotate(struct omap_dss_device *dssdev, u8 rotate) { struct taal_data *td = dev_get_drvdata(&dssdev->dev); + u16 dw, dh; int r; dev_dbg(&dssdev->dev, "rotate %d\n", rotate); @@ -1508,6 +1512,16 @@ static int taal_rotate(struct omap_dss_device *dssdev, u8 rotate) goto err; } + if (rotate == 0 || rotate == 2) { + dw = dssdev->panel.timings.x_res; + dh = dssdev->panel.timings.y_res; + } else { + dw = dssdev->panel.timings.y_res; + dh = dssdev->panel.timings.x_res; + } + + omapdss_dsi_set_size(dssdev, dw, dh); + td->rotate = rotate; dsi_bus_unlock(dssdev); diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c index 4787e469131b..da68a2f93104 100644 --- a/drivers/video/omap2/dss/dsi.c +++ b/drivers/video/omap2/dss/dsi.c @@ -4328,7 +4328,8 @@ int omap_dsi_update(struct omap_dss_device *dssdev, int channel, dsi->framedone_callback = callback; dsi->framedone_data = data; - dssdev->driver->get_resolution(dssdev, &dw, &dh); + dw = dsi->timings.x_res; + dh = dsi->timings.y_res; #ifdef DEBUG dsi->update_bytes = dw * dh * @@ -4374,12 +4375,6 @@ static int dsi_display_init_dispc(struct omap_dss_device *dssdev) u32 irq = 0; if (dssdev->panel.dsi_mode == OMAP_DSS_DSI_CMD_MODE) { - u16 dw, dh; - - dssdev->driver->get_resolution(dssdev, &dw, &dh); - - dsi->timings.x_res = dw; - dsi->timings.y_res = dh; dsi->timings.hsw = 1; dsi->timings.hfp = 1; dsi->timings.hbp = 1; @@ -4667,6 +4662,20 @@ void omapdss_dsi_set_timings(struct omap_dss_device *dssdev, } EXPORT_SYMBOL(omapdss_dsi_set_timings); +void omapdss_dsi_set_size(struct omap_dss_device *dssdev, u16 w, u16 h) +{ + struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev); + struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); + + mutex_lock(&dsi->lock); + + dsi->timings.x_res = w; + dsi->timings.y_res = h; + + mutex_unlock(&dsi->lock); +} +EXPORT_SYMBOL(omapdss_dsi_set_size); + static int __init dsi_init_display(struct omap_dss_device *dssdev) { struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev); diff --git a/include/video/omapdss.h b/include/video/omapdss.h index 47cfc170100e..0898c2fad9ae 100644 --- a/include/video/omapdss.h +++ b/include/video/omapdss.h @@ -721,6 +721,7 @@ void omapdss_dsi_vc_enable_hs(struct omap_dss_device *dssdev, int channel, int omapdss_dsi_enable_te(struct omap_dss_device *dssdev, bool enable); void omapdss_dsi_set_timings(struct omap_dss_device *dssdev, struct omap_video_timings *timings); +void omapdss_dsi_set_size(struct omap_dss_device *dssdev, u16 w, u16 h); int omap_dsi_update(struct omap_dss_device *dssdev, int channel, void (*callback)(int, void *), void *data); -- cgit v1.2.3-71-gd317 From c7833f7bc049dfd844ce3042798cf48551b5f14d Mon Sep 17 00:00:00 2001 From: Archit Taneja Date: Thu, 5 Jul 2012 17:11:12 +0530 Subject: OMAPDSS: SDI: Create a function to set timings Create function omapdss_sdi_set_timings(). Configuring new timings is done the same way as before, SDI is disabled, and re-enabled with the new timings in dssdev. This just moves the code from the panel drivers to the SDI driver. The panel drivers shouldn't be aware of how SDI manages to configure a new set of timings. This should be taken care of by the SDI driver itself. Signed-off-by: Archit Taneja --- drivers/video/omap2/displays/panel-acx565akm.c | 13 +------------ drivers/video/omap2/dss/sdi.c | 17 +++++++++++++++++ include/video/omapdss.h | 2 ++ 3 files changed, 20 insertions(+), 12 deletions(-) (limited to 'include') diff --git a/drivers/video/omap2/displays/panel-acx565akm.c b/drivers/video/omap2/displays/panel-acx565akm.c index eaeed4340e04..11bdc883e46b 100644 --- a/drivers/video/omap2/displays/panel-acx565akm.c +++ b/drivers/video/omap2/displays/panel-acx565akm.c @@ -731,18 +731,7 @@ static int acx_panel_resume(struct omap_dss_device *dssdev) static void acx_panel_set_timings(struct omap_dss_device *dssdev, struct omap_video_timings *timings) { - int r; - - if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) - omapdss_sdi_display_disable(dssdev); - - dssdev->panel.timings = *timings; - - if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) { - r = omapdss_sdi_display_enable(dssdev); - if (r) - dev_err(&dssdev->dev, "%s enable failed\n", __func__); - } + omapdss_sdi_set_timings(dssdev, timings); } static int acx_panel_check_timings(struct omap_dss_device *dssdev, diff --git a/drivers/video/omap2/dss/sdi.c b/drivers/video/omap2/dss/sdi.c index 5d31699fbd3c..0474962571c6 100644 --- a/drivers/video/omap2/dss/sdi.c +++ b/drivers/video/omap2/dss/sdi.c @@ -146,6 +146,23 @@ void omapdss_sdi_display_disable(struct omap_dss_device *dssdev) } EXPORT_SYMBOL(omapdss_sdi_display_disable); +void omapdss_sdi_set_timings(struct omap_dss_device *dssdev, + struct omap_video_timings *timings) +{ + int r; + + dssdev->panel.timings = *timings; + + if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) { + omapdss_sdi_display_disable(dssdev); + + r = omapdss_sdi_display_enable(dssdev); + if (r) + DSSERR("failed to set new timings\n"); + } +} +EXPORT_SYMBOL(omapdss_sdi_set_timings); + static int __init sdi_init_display(struct omap_dss_device *dssdev) { DSSDBG("SDI init\n"); diff --git a/include/video/omapdss.h b/include/video/omapdss.h index 0898c2fad9ae..a06a9ba3872d 100644 --- a/include/video/omapdss.h +++ b/include/video/omapdss.h @@ -744,6 +744,8 @@ int dpi_check_timings(struct omap_dss_device *dssdev, int omapdss_sdi_display_enable(struct omap_dss_device *dssdev); void omapdss_sdi_display_disable(struct omap_dss_device *dssdev); +void omapdss_sdi_set_timings(struct omap_dss_device *dssdev, + struct omap_video_timings *timings); int omapdss_rfbi_display_enable(struct omap_dss_device *dssdev); void omapdss_rfbi_display_disable(struct omap_dss_device *dssdev); -- cgit v1.2.3-71-gd317 From 43eab86167a0893e0e1102d4a5a1d95dfe442f8d Mon Sep 17 00:00:00 2001 From: Archit Taneja Date: Mon, 13 Aug 2012 12:24:53 +0530 Subject: OMAPDSS: RFBI: Remove partial update support Partial update suppport was removed from DISPC and DSI sometime back. The RFBI driver still tries to support partial update without the underlying support in DISPC. Remove partial update support from RFBI, only support updates which span acros the whole panel size. This also helps in DSI and RFBI having similar update ops. Signed-off-by: Archit Taneja --- drivers/video/omap2/displays/panel-n8x0.c | 14 ++++-- drivers/video/omap2/dss/rfbi.c | 76 ++++++++----------------------- include/video/omapdss.h | 7 +-- 3 files changed, 31 insertions(+), 66 deletions(-) (limited to 'include') diff --git a/drivers/video/omap2/displays/panel-n8x0.c b/drivers/video/omap2/displays/panel-n8x0.c index e6c115373c00..1d421b5ffae4 100644 --- a/drivers/video/omap2/displays/panel-n8x0.c +++ b/drivers/video/omap2/displays/panel-n8x0.c @@ -625,17 +625,25 @@ static int n8x0_panel_update(struct omap_dss_device *dssdev, u16 x, u16 y, u16 w, u16 h) { struct panel_drv_data *ddata = get_drv_data(dssdev); + u16 dw, dh; dev_dbg(&dssdev->dev, "update\n"); + dw = dssdev->panel.timings.x_res; + dh = dssdev->panel.timings.y_res; + + if (x != 0 || y != 0 || w != dw || h != dh) { + dev_err(&dssdev->dev, "invaid update region %d, %d, %d, %d\n", + x, y, w, h); + return -EINVAL; + } + mutex_lock(&ddata->lock); rfbi_bus_lock(); - omap_rfbi_prepare_update(dssdev, &x, &y, &w, &h); - blizzard_ctrl_setup_update(dssdev, x, y, w, h); - omap_rfbi_update(dssdev, x, y, w, h, update_done, NULL); + omap_rfbi_update(dssdev, update_done, NULL); mutex_unlock(&ddata->lock); diff --git a/drivers/video/omap2/dss/rfbi.c b/drivers/video/omap2/dss/rfbi.c index 7c087424b634..6bc264818edf 100644 --- a/drivers/video/omap2/dss/rfbi.c +++ b/drivers/video/omap2/dss/rfbi.c @@ -300,21 +300,24 @@ void omap_rfbi_write_pixels(const void __iomem *buf, int scr_width, } EXPORT_SYMBOL(omap_rfbi_write_pixels); -static int rfbi_transfer_area(struct omap_dss_device *dssdev, u16 width, - u16 height, void (*callback)(void *data), void *data) +static int rfbi_transfer_area(struct omap_dss_device *dssdev, + void (*callback)(void *data), void *data) { u32 l; int r; - struct omap_video_timings timings = { - .hsw = 1, - .hfp = 1, - .hbp = 1, - .vsw = 1, - .vfp = 0, - .vbp = 0, - .x_res = width, - .y_res = height, - }; + struct omap_video_timings timings; + u16 width, height; + + dssdev->driver->get_resolution(dssdev, &width, &height); + + timings.x_res = width; + timings.y_res = height; + timings.hsw = 1; + timings.hfp = 1; + timings.hbp = 1; + timings.vsw = 1; + timings.vfp = 0; + timings.vbp = 0; /*BUG_ON(callback == 0);*/ BUG_ON(rfbi.framedone_callback != NULL); @@ -777,53 +780,10 @@ int omap_rfbi_configure(struct omap_dss_device *dssdev, int pixel_size, } EXPORT_SYMBOL(omap_rfbi_configure); -int omap_rfbi_prepare_update(struct omap_dss_device *dssdev, - u16 *x, u16 *y, u16 *w, u16 *h) -{ - u16 dw, dh; - struct omap_video_timings timings = { - .hsw = 1, - .hfp = 1, - .hbp = 1, - .vsw = 1, - .vfp = 0, - .vbp = 0, - .x_res = *w, - .y_res = *h, - }; - - dssdev->driver->get_resolution(dssdev, &dw, &dh); - - if (*x > dw || *y > dh) - return -EINVAL; - - if (*x + *w > dw) - return -EINVAL; - - if (*y + *h > dh) - return -EINVAL; - - if (*w == 1) - return -EINVAL; - - if (*w == 0 || *h == 0) - return -EINVAL; - - dss_mgr_set_timings(dssdev->manager, &timings); - - return 0; -} -EXPORT_SYMBOL(omap_rfbi_prepare_update); - -int omap_rfbi_update(struct omap_dss_device *dssdev, - u16 x, u16 y, u16 w, u16 h, - void (*callback)(void *), void *data) +int omap_rfbi_update(struct omap_dss_device *dssdev, void (*callback)(void *), + void *data) { - int r; - - r = rfbi_transfer_area(dssdev, w, h, callback, data); - - return r; + return rfbi_transfer_area(dssdev, callback, data); } EXPORT_SYMBOL(omap_rfbi_update); diff --git a/include/video/omapdss.h b/include/video/omapdss.h index a06a9ba3872d..b6b03cea8600 100644 --- a/include/video/omapdss.h +++ b/include/video/omapdss.h @@ -749,11 +749,8 @@ void omapdss_sdi_set_timings(struct omap_dss_device *dssdev, int omapdss_rfbi_display_enable(struct omap_dss_device *dssdev); void omapdss_rfbi_display_disable(struct omap_dss_device *dssdev); -int omap_rfbi_prepare_update(struct omap_dss_device *dssdev, - u16 *x, u16 *y, u16 *w, u16 *h); -int omap_rfbi_update(struct omap_dss_device *dssdev, - u16 x, u16 y, u16 w, u16 h, - void (*callback)(void *), void *data); +int omap_rfbi_update(struct omap_dss_device *dssdev, void (*callback)(void *), + void *data); int omap_rfbi_configure(struct omap_dss_device *dssdev, int pixel_size, int data_lines); -- cgit v1.2.3-71-gd317 From 6ff9dd5a6fe624726f7004ddf995bb2b3409e1d5 Mon Sep 17 00:00:00 2001 From: Archit Taneja Date: Mon, 13 Aug 2012 15:12:10 +0530 Subject: OMAPDSS: RFBI: Add function to set panel size RFBI drivers requires configuration of the update area. Since we don't support partial updates, the size to be configures is the panel size itself. Add a timings field in RFBI's driver data. Apart from x_res and y_res, all the other fields are configured to an initial value when RFBI is enabled. A panel driver is expected to call omapdss_rfbi_set_size() configure the size of the panel. Signed-off-by: Archit Taneja --- drivers/video/omap2/displays/panel-n8x0.c | 3 ++ drivers/video/omap2/dss/rfbi.c | 47 ++++++++++++++++++++++--------- include/video/omapdss.h | 1 + 3 files changed, 37 insertions(+), 14 deletions(-) (limited to 'include') diff --git a/drivers/video/omap2/displays/panel-n8x0.c b/drivers/video/omap2/displays/panel-n8x0.c index 1d421b5ffae4..839ef84bb3d6 100644 --- a/drivers/video/omap2/displays/panel-n8x0.c +++ b/drivers/video/omap2/displays/panel-n8x0.c @@ -297,6 +297,9 @@ static int n8x0_panel_power_on(struct omap_dss_device *dssdev) goto err_plat_en; } + omapdss_rfbi_set_size(dssdev, dssdev->panel.timings.x_res, + dssdev->panel.timings.y_res); + r = omapdss_rfbi_display_enable(dssdev); if (r) goto err_rfbi_en; diff --git a/drivers/video/omap2/dss/rfbi.c b/drivers/video/omap2/dss/rfbi.c index 6bc264818edf..40abee72aaee 100644 --- a/drivers/video/omap2/dss/rfbi.c +++ b/drivers/video/omap2/dss/rfbi.c @@ -111,6 +111,8 @@ static struct { struct omap_dss_device *dssdev[2]; struct semaphore bus_lock; + + struct omap_video_timings timings; } rfbi; static inline void rfbi_write_reg(const struct rfbi_reg idx, u32 val) @@ -305,26 +307,15 @@ static int rfbi_transfer_area(struct omap_dss_device *dssdev, { u32 l; int r; - struct omap_video_timings timings; - u16 width, height; - - dssdev->driver->get_resolution(dssdev, &width, &height); - - timings.x_res = width; - timings.y_res = height; - timings.hsw = 1; - timings.hfp = 1; - timings.hbp = 1; - timings.vsw = 1; - timings.vfp = 0; - timings.vbp = 0; + u16 width = rfbi.timings.x_res; + u16 height = rfbi.timings.y_res; /*BUG_ON(callback == 0);*/ BUG_ON(rfbi.framedone_callback != NULL); DSSDBG("rfbi_transfer_area %dx%d\n", width, height); - dss_mgr_set_timings(dssdev->manager, &timings); + dss_mgr_set_timings(dssdev->manager, &rfbi.timings); r = dss_mgr_enable(dssdev->manager); if (r) @@ -787,6 +778,13 @@ int omap_rfbi_update(struct omap_dss_device *dssdev, void (*callback)(void *), } EXPORT_SYMBOL(omap_rfbi_update); +void omapdss_rfbi_set_size(struct omap_dss_device *dssdev, u16 w, u16 h) +{ + rfbi.timings.x_res = w; + rfbi.timings.y_res = h; +} +EXPORT_SYMBOL(omapdss_rfbi_set_size); + static void rfbi_dump_regs(struct seq_file *s) { #define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, rfbi_read_reg(r)) @@ -841,6 +839,27 @@ static void rfbi_config_lcd_manager(struct omap_dss_device *dssdev) mgr_config.lcden_sig_polarity = 0; dss_mgr_set_lcd_config(dssdev->manager, &mgr_config); + + /* + * Set rfbi.timings with default values, the x_res and y_res fields + * are expected to be already configured by the panel driver via + * omapdss_rfbi_set_size() + */ + rfbi.timings.hsw = 1; + rfbi.timings.hfp = 1; + rfbi.timings.hbp = 1; + rfbi.timings.vsw = 1; + rfbi.timings.vfp = 0; + rfbi.timings.vbp = 0; + + rfbi.timings.interlace = false; + rfbi.timings.hsync_level = OMAPDSS_SIG_ACTIVE_HIGH; + rfbi.timings.vsync_level = OMAPDSS_SIG_ACTIVE_HIGH; + rfbi.timings.data_pclk_edge = OMAPDSS_DRIVE_SIG_RISING_EDGE; + rfbi.timings.de_level = OMAPDSS_SIG_ACTIVE_HIGH; + rfbi.timings.sync_pclk_edge = OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES; + + dss_mgr_set_timings(dssdev->manager, &rfbi.timings); } int omapdss_rfbi_display_enable(struct omap_dss_device *dssdev) diff --git a/include/video/omapdss.h b/include/video/omapdss.h index b6b03cea8600..ea7d59835905 100644 --- a/include/video/omapdss.h +++ b/include/video/omapdss.h @@ -753,5 +753,6 @@ int omap_rfbi_update(struct omap_dss_device *dssdev, void (*callback)(void *), void *data); int omap_rfbi_configure(struct omap_dss_device *dssdev, int pixel_size, int data_lines); +void omapdss_rfbi_set_size(struct omap_dss_device *dssdev, u16 w, u16 h); #endif -- cgit v1.2.3-71-gd317 From 4e8b14526ca7fb046a81c94002c1c43b6fdf0e9b Mon Sep 17 00:00:00 2001 From: John Stultz Date: Wed, 8 Aug 2012 15:36:20 -0400 Subject: time: Improve sanity checking of timekeeping inputs Unexpected behavior could occur if the time is set to a value large enough to overflow a 64bit ktime_t (which is something larger then the year 2262). Also unexpected behavior could occur if large negative offsets are injected via adjtimex. So this patch improves the sanity check timekeeping inputs by improving the timespec_valid() check, and then makes better use of timespec_valid() to make sure we don't set the time to an invalid negative value or one that overflows ktime_t. Note: This does not protect from setting the time close to overflowing ktime_t and then letting natural accumulation cause the overflow. Reported-by: CAI Qian Reported-by: Sasha Levin Signed-off-by: John Stultz Cc: Peter Zijlstra Cc: Prarit Bhargava Cc: Zhouping Liu Cc: Ingo Molnar Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/1344454580-17031-1-git-send-email-john.stultz@linaro.org Signed-off-by: Thomas Gleixner --- include/linux/ktime.h | 7 ------- include/linux/time.h | 22 ++++++++++++++++++++-- kernel/time/timekeeping.c | 26 ++++++++++++++++++++++++-- 3 files changed, 44 insertions(+), 11 deletions(-) (limited to 'include') diff --git a/include/linux/ktime.h b/include/linux/ktime.h index 603bec2913b0..06177ba10a16 100644 --- a/include/linux/ktime.h +++ b/include/linux/ktime.h @@ -58,13 +58,6 @@ union ktime { typedef union ktime ktime_t; /* Kill this */ -#define KTIME_MAX ((s64)~((u64)1 << 63)) -#if (BITS_PER_LONG == 64) -# define KTIME_SEC_MAX (KTIME_MAX / NSEC_PER_SEC) -#else -# define KTIME_SEC_MAX LONG_MAX -#endif - /* * ktime_t definitions when using the 64-bit scalar representation: */ diff --git a/include/linux/time.h b/include/linux/time.h index c81c5e40fcb5..b0bbd8f0130d 100644 --- a/include/linux/time.h +++ b/include/linux/time.h @@ -107,11 +107,29 @@ static inline struct timespec timespec_sub(struct timespec lhs, return ts_delta; } +#define KTIME_MAX ((s64)~((u64)1 << 63)) +#if (BITS_PER_LONG == 64) +# define KTIME_SEC_MAX (KTIME_MAX / NSEC_PER_SEC) +#else +# define KTIME_SEC_MAX LONG_MAX +#endif + /* * Returns true if the timespec is norm, false if denorm: */ -#define timespec_valid(ts) \ - (((ts)->tv_sec >= 0) && (((unsigned long) (ts)->tv_nsec) < NSEC_PER_SEC)) +static inline bool timespec_valid(const struct timespec *ts) +{ + /* Dates before 1970 are bogus */ + if (ts->tv_sec < 0) + return false; + /* Can't have more nanoseconds then a second */ + if ((unsigned long)ts->tv_nsec >= NSEC_PER_SEC) + return false; + /* Disallow values that could overflow ktime_t */ + if ((unsigned long long)ts->tv_sec >= KTIME_SEC_MAX) + return false; + return true; +} extern void read_persistent_clock(struct timespec *ts); extern void read_boot_clock(struct timespec *ts); diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c index e16af197a2bc..898bef066a44 100644 --- a/kernel/time/timekeeping.c +++ b/kernel/time/timekeeping.c @@ -427,7 +427,7 @@ int do_settimeofday(const struct timespec *tv) struct timespec ts_delta, xt; unsigned long flags; - if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC) + if (!timespec_valid(tv)) return -EINVAL; write_seqlock_irqsave(&tk->lock, flags); @@ -463,6 +463,8 @@ int timekeeping_inject_offset(struct timespec *ts) { struct timekeeper *tk = &timekeeper; unsigned long flags; + struct timespec tmp; + int ret = 0; if ((unsigned long)ts->tv_nsec >= NSEC_PER_SEC) return -EINVAL; @@ -471,10 +473,17 @@ int timekeeping_inject_offset(struct timespec *ts) timekeeping_forward_now(tk); + /* Make sure the proposed value is valid */ + tmp = timespec_add(tk_xtime(tk), *ts); + if (!timespec_valid(&tmp)) { + ret = -EINVAL; + goto error; + } tk_xtime_add(tk, ts); tk_set_wall_to_mono(tk, timespec_sub(tk->wall_to_monotonic, *ts)); +error: /* even if we error out, we forwarded the time, so call update */ timekeeping_update(tk, true); write_sequnlock_irqrestore(&tk->lock, flags); @@ -482,7 +491,7 @@ int timekeeping_inject_offset(struct timespec *ts) /* signal hrtimers about time change */ clock_was_set(); - return 0; + return ret; } EXPORT_SYMBOL(timekeeping_inject_offset); @@ -649,7 +658,20 @@ void __init timekeeping_init(void) struct timespec now, boot, tmp; read_persistent_clock(&now); + if (!timespec_valid(&now)) { + pr_warn("WARNING: Persistent clock returned invalid value!\n" + " Check your CMOS/BIOS settings.\n"); + now.tv_sec = 0; + now.tv_nsec = 0; + } + read_boot_clock(&boot); + if (!timespec_valid(&boot)) { + pr_warn("WARNING: Boot clock returned invalid value!\n" + " Check your CMOS/BIOS settings.\n"); + boot.tv_sec = 0; + boot.tv_nsec = 0; + } seqlock_init(&tk->lock); -- cgit v1.2.3-71-gd317 From 58569aee5a1a5dcc25c34a0a2ed9a377874e6b05 Mon Sep 17 00:00:00 2001 From: "Arnaud Patard (Rtp)" Date: Thu, 26 Jul 2012 12:15:46 +0200 Subject: ARM: Orion: Set eth packet size csum offload limit The mv643xx ethernet controller limits the packet size for the TX checksum offloading. This patch sets this limits for Kirkwood and Dove which have smaller limits that the default. As a side note, this patch is an updated version of a patch sent some years ago: http://lists.infradead.org/pipermail/linux-arm-kernel/2010-June/017320.html which seems to have been lost. Signed-off-by: Arnaud Patard Signed-off-by: Jason Cooper Cc: --- arch/arm/mach-dove/common.c | 3 ++- arch/arm/mach-kirkwood/common.c | 4 ++-- arch/arm/mach-mv78xx0/common.c | 6 ++++-- arch/arm/mach-orion5x/common.c | 3 ++- arch/arm/plat-orion/common.c | 8 ++++++-- arch/arm/plat-orion/include/plat/common.h | 6 ++++-- include/linux/mv643xx_eth.h | 2 ++ 7 files changed, 22 insertions(+), 10 deletions(-) (limited to 'include') diff --git a/arch/arm/mach-dove/common.c b/arch/arm/mach-dove/common.c index 4db5de54b6a7..6321567d8eaa 100644 --- a/arch/arm/mach-dove/common.c +++ b/arch/arm/mach-dove/common.c @@ -102,7 +102,8 @@ void __init dove_ehci1_init(void) void __init dove_ge00_init(struct mv643xx_eth_platform_data *eth_data) { orion_ge00_init(eth_data, DOVE_GE00_PHYS_BASE, - IRQ_DOVE_GE00_SUM, IRQ_DOVE_GE00_ERR); + IRQ_DOVE_GE00_SUM, IRQ_DOVE_GE00_ERR, + 1600); } /***************************************************************************** diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c index c4b64adcbfce..3226077735b1 100644 --- a/arch/arm/mach-kirkwood/common.c +++ b/arch/arm/mach-kirkwood/common.c @@ -301,7 +301,7 @@ void __init kirkwood_ge00_init(struct mv643xx_eth_platform_data *eth_data) { orion_ge00_init(eth_data, GE00_PHYS_BASE, IRQ_KIRKWOOD_GE00_SUM, - IRQ_KIRKWOOD_GE00_ERR); + IRQ_KIRKWOOD_GE00_ERR, 1600); /* The interface forgets the MAC address assigned by u-boot if the clock is turned off, so claim the clk now. */ clk_prepare_enable(ge0); @@ -315,7 +315,7 @@ void __init kirkwood_ge01_init(struct mv643xx_eth_platform_data *eth_data) { orion_ge01_init(eth_data, GE01_PHYS_BASE, IRQ_KIRKWOOD_GE01_SUM, - IRQ_KIRKWOOD_GE01_ERR); + IRQ_KIRKWOOD_GE01_ERR, 1600); clk_prepare_enable(ge1); } diff --git a/arch/arm/mach-mv78xx0/common.c b/arch/arm/mach-mv78xx0/common.c index b4c53b846c9c..3057f7d4329a 100644 --- a/arch/arm/mach-mv78xx0/common.c +++ b/arch/arm/mach-mv78xx0/common.c @@ -213,7 +213,8 @@ void __init mv78xx0_ge00_init(struct mv643xx_eth_platform_data *eth_data) { orion_ge00_init(eth_data, GE00_PHYS_BASE, IRQ_MV78XX0_GE00_SUM, - IRQ_MV78XX0_GE_ERR); + IRQ_MV78XX0_GE_ERR, + MV643XX_TX_CSUM_DEFAULT_LIMIT); } @@ -224,7 +225,8 @@ void __init mv78xx0_ge01_init(struct mv643xx_eth_platform_data *eth_data) { orion_ge01_init(eth_data, GE01_PHYS_BASE, IRQ_MV78XX0_GE01_SUM, - NO_IRQ); + NO_IRQ, + MV643XX_TX_CSUM_DEFAULT_LIMIT); } diff --git a/arch/arm/mach-orion5x/common.c b/arch/arm/mach-orion5x/common.c index 9148b229d0de..410291c67666 100644 --- a/arch/arm/mach-orion5x/common.c +++ b/arch/arm/mach-orion5x/common.c @@ -109,7 +109,8 @@ void __init orion5x_eth_init(struct mv643xx_eth_platform_data *eth_data) { orion_ge00_init(eth_data, ORION5X_ETH_PHYS_BASE, IRQ_ORION5X_ETH_SUM, - IRQ_ORION5X_ETH_ERR); + IRQ_ORION5X_ETH_ERR, + MV643XX_TX_CSUM_DEFAULT_LIMIT); } diff --git a/arch/arm/plat-orion/common.c b/arch/arm/plat-orion/common.c index d245a87dc014..b8b747a9d360 100644 --- a/arch/arm/plat-orion/common.c +++ b/arch/arm/plat-orion/common.c @@ -291,10 +291,12 @@ static struct platform_device orion_ge00 = { void __init orion_ge00_init(struct mv643xx_eth_platform_data *eth_data, unsigned long mapbase, unsigned long irq, - unsigned long irq_err) + unsigned long irq_err, + unsigned int tx_csum_limit) { fill_resources(&orion_ge00_shared, orion_ge00_shared_resources, mapbase + 0x2000, SZ_16K - 1, irq_err); + orion_ge00_shared_data.tx_csum_limit = tx_csum_limit; ge_complete(&orion_ge00_shared_data, orion_ge00_resources, irq, &orion_ge00_shared, eth_data, &orion_ge00); @@ -343,10 +345,12 @@ static struct platform_device orion_ge01 = { void __init orion_ge01_init(struct mv643xx_eth_platform_data *eth_data, unsigned long mapbase, unsigned long irq, - unsigned long irq_err) + unsigned long irq_err, + unsigned int tx_csum_limit) { fill_resources(&orion_ge01_shared, orion_ge01_shared_resources, mapbase + 0x2000, SZ_16K - 1, irq_err); + orion_ge01_shared_data.tx_csum_limit = tx_csum_limit; ge_complete(&orion_ge01_shared_data, orion_ge01_resources, irq, &orion_ge01_shared, eth_data, &orion_ge01); diff --git a/arch/arm/plat-orion/include/plat/common.h b/arch/arm/plat-orion/include/plat/common.h index e00fdb213609..ae2377ef63e5 100644 --- a/arch/arm/plat-orion/include/plat/common.h +++ b/arch/arm/plat-orion/include/plat/common.h @@ -39,12 +39,14 @@ void __init orion_rtc_init(unsigned long mapbase, void __init orion_ge00_init(struct mv643xx_eth_platform_data *eth_data, unsigned long mapbase, unsigned long irq, - unsigned long irq_err); + unsigned long irq_err, + unsigned int tx_csum_limit); void __init orion_ge01_init(struct mv643xx_eth_platform_data *eth_data, unsigned long mapbase, unsigned long irq, - unsigned long irq_err); + unsigned long irq_err, + unsigned int tx_csum_limit); void __init orion_ge10_init(struct mv643xx_eth_platform_data *eth_data, unsigned long mapbase, diff --git a/include/linux/mv643xx_eth.h b/include/linux/mv643xx_eth.h index 51bf8ada6dc0..49258e0ed1c6 100644 --- a/include/linux/mv643xx_eth.h +++ b/include/linux/mv643xx_eth.h @@ -15,6 +15,8 @@ #define MV643XX_ETH_SIZE_REG_4 0x2224 #define MV643XX_ETH_BASE_ADDR_ENABLE_REG 0x2290 +#define MV643XX_TX_CSUM_DEFAULT_LIMIT 0 + struct mv643xx_eth_shared_platform_data { struct mbus_dram_target_info *dram; struct platform_device *shared_smi; -- cgit v1.2.3-71-gd317 From 02c3960b1eeafd5ed30323e1bb86bfa099b46921 Mon Sep 17 00:00:00 2001 From: Archit Taneja Date: Fri, 10 Aug 2012 15:01:33 +0530 Subject: OMAPDSS: DSI: Maintain copy of pixel format in driver data The DSI driver currently relies on the omap_dss_device struct to receive the desired pixel format of the panel. This makes the DSI interface driver dependent on the omap_dss_device struct. Make the DSI driver data maintain it's own pixel format field. The panel driver is expected to call omapdss_dsi_set_pixel_format() to configure the pixel format before the interface is enabled. Signed-off-by: Archit Taneja --- drivers/video/omap2/displays/panel-taal.c | 1 + drivers/video/omap2/dss/dsi.c | 34 +++++++++++++++++++++++-------- include/video/omapdss.h | 2 ++ 3 files changed, 28 insertions(+), 9 deletions(-) (limited to 'include') diff --git a/drivers/video/omap2/displays/panel-taal.c b/drivers/video/omap2/displays/panel-taal.c index c3bca2fb15d4..de1dd20644f2 100644 --- a/drivers/video/omap2/displays/panel-taal.c +++ b/drivers/video/omap2/displays/panel-taal.c @@ -1062,6 +1062,7 @@ static int taal_power_on(struct omap_dss_device *dssdev) omapdss_dsi_set_size(dssdev, dssdev->panel.timings.x_res, dssdev->panel.timings.y_res); + omapdss_dsi_set_pixel_format(dssdev, OMAP_DSS_DSI_FMT_RGB888); r = omapdss_dsi_display_enable(dssdev); if (r) { diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c index 36e2aa79bca6..8f94cb806145 100644 --- a/drivers/video/omap2/dss/dsi.c +++ b/drivers/video/omap2/dss/dsi.c @@ -334,6 +334,7 @@ struct dsi_data { struct dss_lcd_mgr_config mgr_config; struct omap_video_timings timings; + enum omap_dss_dsi_pixel_format pix_fmt; }; struct dsi_packet_sent_handler_data { @@ -3612,7 +3613,7 @@ static void dsi_config_vp_num_line_buffers(struct omap_dss_device *dssdev) if (dssdev->panel.dsi_mode == OMAP_DSS_DSI_VIDEO_MODE) { struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); - int bpp = dsi_get_pixel_size(dssdev->panel.dsi_pix_fmt); + int bpp = dsi_get_pixel_size(dsi->pix_fmt); unsigned line_buf_size = dsi_get_line_buf_size(dsidev); struct omap_video_timings *timings = &dsi->timings; /* @@ -3744,7 +3745,7 @@ static void dsi_config_cmd_mode_interleaving(struct omap_dss_device *dssdev) int tclk_trail, ths_exit, exiths_clk; bool ddr_alwon; struct omap_video_timings *timings = &dsi->timings; - int bpp = dsi_get_pixel_size(dssdev->panel.dsi_pix_fmt); + int bpp = dsi_get_pixel_size(dsi->pix_fmt); int ndl = dsi->num_lanes_used - 1; int dsi_fclk_hsdiv = dssdev->clocks.dsi.regm_dsi + 1; int hsa_interleave_hs = 0, hsa_interleave_lp = 0; @@ -3854,6 +3855,7 @@ static void dsi_config_cmd_mode_interleaving(struct omap_dss_device *dssdev) static int dsi_proto_config(struct omap_dss_device *dssdev) { struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev); + struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); u32 r; int buswidth = 0; @@ -3873,7 +3875,7 @@ static int dsi_proto_config(struct omap_dss_device *dssdev) dsi_set_lp_rx_timeout(dsidev, 0x1fff, true, true); dsi_set_hs_tx_timeout(dsidev, 0x1fff, true, true); - switch (dsi_get_pixel_size(dssdev->panel.dsi_pix_fmt)) { + switch (dsi_get_pixel_size(dsi->pix_fmt)) { case 16: buswidth = 0; break; @@ -3997,7 +3999,7 @@ static void dsi_proto_timings(struct omap_dss_device *dssdev) int window_sync = dssdev->panel.dsi_vm_data.window_sync; bool hsync_end = dssdev->panel.dsi_vm_data.vp_hsync_end; struct omap_video_timings *timings = &dsi->timings; - int bpp = dsi_get_pixel_size(dssdev->panel.dsi_pix_fmt); + int bpp = dsi_get_pixel_size(dsi->pix_fmt); int tl, t_he, width_bytes; t_he = hsync_end ? @@ -4106,13 +4108,13 @@ int dsi_enable_video_output(struct omap_dss_device *dssdev, int channel) { struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev); struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); - int bpp = dsi_get_pixel_size(dssdev->panel.dsi_pix_fmt); + int bpp = dsi_get_pixel_size(dsi->pix_fmt); u8 data_type; u16 word_count; int r; if (dssdev->panel.dsi_mode == OMAP_DSS_DSI_VIDEO_MODE) { - switch (dssdev->panel.dsi_pix_fmt) { + switch (dsi->pix_fmt) { case OMAP_DSS_DSI_FMT_RGB888: data_type = MIPI_DSI_PACKED_PIXEL_STREAM_24; break; @@ -4199,7 +4201,7 @@ static void dsi_update_screen_dispc(struct omap_dss_device *dssdev) dsi_vc_config_source(dsidev, channel, DSI_VC_SOURCE_VP); - bytespp = dsi_get_pixel_size(dssdev->panel.dsi_pix_fmt) / 8; + bytespp = dsi_get_pixel_size(dsi->pix_fmt) / 8; bytespl = w * bytespp; bytespf = bytespl * h; @@ -4336,7 +4338,7 @@ int omap_dsi_update(struct omap_dss_device *dssdev, int channel, #ifdef DEBUG dsi->update_bytes = dw * dh * - dsi_get_pixel_size(dssdev->panel.dsi_pix_fmt) / 8; + dsi_get_pixel_size(dsi->pix_fmt) / 8; #endif dsi_update_screen_dispc(dssdev); @@ -4420,7 +4422,7 @@ static int dsi_display_init_dispc(struct omap_dss_device *dssdev) dsi->mgr_config.io_pad_mode = DSS_IO_PAD_MODE_BYPASS; dsi->mgr_config.video_port_width = - dsi_get_pixel_size(dssdev->panel.dsi_pix_fmt); + dsi_get_pixel_size(dsi->pix_fmt); dsi->mgr_config.lcden_sig_polarity = 0; dss_mgr_set_lcd_config(dssdev->manager, &dsi->mgr_config); @@ -4679,6 +4681,20 @@ void omapdss_dsi_set_size(struct omap_dss_device *dssdev, u16 w, u16 h) } EXPORT_SYMBOL(omapdss_dsi_set_size); +void omapdss_dsi_set_pixel_format(struct omap_dss_device *dssdev, + enum omap_dss_dsi_pixel_format fmt) +{ + struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev); + struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); + + mutex_lock(&dsi->lock); + + dsi->pix_fmt = fmt; + + mutex_unlock(&dsi->lock); +} +EXPORT_SYMBOL(omapdss_dsi_set_pixel_format); + static int __init dsi_init_display(struct omap_dss_device *dssdev) { struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev); diff --git a/include/video/omapdss.h b/include/video/omapdss.h index ea7d59835905..cc7bfb05dcad 100644 --- a/include/video/omapdss.h +++ b/include/video/omapdss.h @@ -722,6 +722,8 @@ int omapdss_dsi_enable_te(struct omap_dss_device *dssdev, bool enable); void omapdss_dsi_set_timings(struct omap_dss_device *dssdev, struct omap_video_timings *timings); void omapdss_dsi_set_size(struct omap_dss_device *dssdev, u16 w, u16 h); +void omapdss_dsi_set_pixel_format(struct omap_dss_device *dssdev, + enum omap_dss_dsi_pixel_format fmt); int omap_dsi_update(struct omap_dss_device *dssdev, int channel, void (*callback)(int, void *), void *data); -- cgit v1.2.3-71-gd317 From b02875be08fd2ca7a195154c9f1c538508ca0d5a Mon Sep 17 00:00:00 2001 From: Archit Taneja Date: Mon, 13 Aug 2012 15:26:49 +0530 Subject: OMAPDSS: RFBI: Maintain copy of pixel size in driver data The RFBI driver currently relies on the omap_dss_device struct to receive the desired pixel size of the panel. This makes the RFBI interface driver dependent on the omap_dss_device struct. Make the RFBI driver data maintain it's own pixel format field. A panel driver is expected to call omapdss_rfbi_set_pixel_size() to configure the pixel format before enabling the interface or calling omap_rfbi_configure(). Signed-off-by: Archit Taneja --- drivers/video/omap2/displays/panel-n8x0.c | 9 +++++++-- drivers/video/omap2/dss/rfbi.c | 20 +++++++++++++------- include/video/omapdss.h | 5 +++-- 3 files changed, 23 insertions(+), 11 deletions(-) (limited to 'include') diff --git a/drivers/video/omap2/displays/panel-n8x0.c b/drivers/video/omap2/displays/panel-n8x0.c index 839ef84bb3d6..9565958ebaa9 100644 --- a/drivers/video/omap2/displays/panel-n8x0.c +++ b/drivers/video/omap2/displays/panel-n8x0.c @@ -150,11 +150,15 @@ static void blizzard_ctrl_setup_update(struct omap_dss_device *dssdev, BLIZZARD_SRC_WRITE_LCD : BLIZZARD_SRC_WRITE_LCD_DESTRUCTIVE; - omap_rfbi_configure(dssdev, 16, 8); + omapdss_rfbi_set_pixel_size(dssdev, 16); + + omap_rfbi_configure(dssdev, 8); blizzard_write(BLIZZARD_INPUT_WIN_X_START_0, tmp, 18); - omap_rfbi_configure(dssdev, 16, 16); + omapdss_rfbi_set_pixel_size(dssdev, 16); + + omap_rfbi_configure(dssdev, 16); } static void mipid_transfer(struct spi_device *spi, int cmd, const u8 *wbuf, @@ -299,6 +303,7 @@ static int n8x0_panel_power_on(struct omap_dss_device *dssdev) omapdss_rfbi_set_size(dssdev, dssdev->panel.timings.x_res, dssdev->panel.timings.y_res); + omapdss_rfbi_set_pixel_size(dssdev, dssdev->ctrl.pixel_size); r = omapdss_rfbi_display_enable(dssdev); if (r) diff --git a/drivers/video/omap2/dss/rfbi.c b/drivers/video/omap2/dss/rfbi.c index 40abee72aaee..98c65223789e 100644 --- a/drivers/video/omap2/dss/rfbi.c +++ b/drivers/video/omap2/dss/rfbi.c @@ -113,6 +113,7 @@ static struct { struct semaphore bus_lock; struct omap_video_timings timings; + int pixel_size; } rfbi; static inline void rfbi_write_reg(const struct rfbi_reg idx, u32 val) @@ -764,10 +765,10 @@ static int rfbi_configure(int rfbi_module, int bpp, int lines) return 0; } -int omap_rfbi_configure(struct omap_dss_device *dssdev, int pixel_size, - int data_lines) +int omap_rfbi_configure(struct omap_dss_device *dssdev, int data_lines) { - return rfbi_configure(dssdev->phy.rfbi.channel, pixel_size, data_lines); + return rfbi_configure(dssdev->phy.rfbi.channel, rfbi.pixel_size, + data_lines); } EXPORT_SYMBOL(omap_rfbi_configure); @@ -785,6 +786,12 @@ void omapdss_rfbi_set_size(struct omap_dss_device *dssdev, u16 w, u16 h) } EXPORT_SYMBOL(omapdss_rfbi_set_size); +void omapdss_rfbi_set_pixel_size(struct omap_dss_device *dssdev, int pixel_size) +{ + rfbi.pixel_size = pixel_size; +} +EXPORT_SYMBOL(omapdss_rfbi_set_pixel_size); + static void rfbi_dump_regs(struct seq_file *s) { #define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, rfbi_read_reg(r)) @@ -835,7 +842,7 @@ static void rfbi_config_lcd_manager(struct omap_dss_device *dssdev) /* Do we need fifohandcheck for RFBI? */ mgr_config.fifohandcheck = false; - mgr_config.video_port_width = dssdev->ctrl.pixel_size; + mgr_config.video_port_width = rfbi.pixel_size; mgr_config.lcden_sig_polarity = 0; dss_mgr_set_lcd_config(dssdev->manager, &mgr_config); @@ -890,9 +897,8 @@ int omapdss_rfbi_display_enable(struct omap_dss_device *dssdev) rfbi_config_lcd_manager(dssdev); - rfbi_configure(dssdev->phy.rfbi.channel, - dssdev->ctrl.pixel_size, - dssdev->phy.rfbi.data_lines); + rfbi_configure(dssdev->phy.rfbi.channel, rfbi.pixel_size, + dssdev->phy.rfbi.data_lines); rfbi_set_timings(dssdev->phy.rfbi.channel, &dssdev->ctrl.rfbi_timings); diff --git a/include/video/omapdss.h b/include/video/omapdss.h index cc7bfb05dcad..d03244a59db4 100644 --- a/include/video/omapdss.h +++ b/include/video/omapdss.h @@ -753,8 +753,9 @@ int omapdss_rfbi_display_enable(struct omap_dss_device *dssdev); void omapdss_rfbi_display_disable(struct omap_dss_device *dssdev); int omap_rfbi_update(struct omap_dss_device *dssdev, void (*callback)(void *), void *data); -int omap_rfbi_configure(struct omap_dss_device *dssdev, int pixel_size, - int data_lines); +int omap_rfbi_configure(struct omap_dss_device *dssdev, int data_lines); void omapdss_rfbi_set_size(struct omap_dss_device *dssdev, u16 w, u16 h); +void omapdss_rfbi_set_pixel_size(struct omap_dss_device *dssdev, + int pixel_size); #endif -- cgit v1.2.3-71-gd317 From 475989b763668f0794d6a8ee34a1ca0e784831e2 Mon Sep 17 00:00:00 2001 From: Archit Taneja Date: Mon, 13 Aug 2012 15:28:15 +0530 Subject: OMAPDSS: RFBI: Maintain copy of number of data lines in driver data The RFBI driver currently relies on the omap_dss_device struct to configure the number of data lines as specified by the panel. This makes the RFBI interface driver dependent on the omap_dss_device struct. Make the RFBI driver data maintain it's own data lines field. A panel driver is expected to call omapdss_rfbi_set_data_lines() to configure the pixel format before enabling the interface or calling omap_rfbi_configure(). Signed-off-by: Archit Taneja --- drivers/video/omap2/displays/panel-n8x0.c | 7 +++++-- drivers/video/omap2/dss/rfbi.c | 13 ++++++++++--- include/video/omapdss.h | 4 +++- 3 files changed, 18 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/drivers/video/omap2/displays/panel-n8x0.c b/drivers/video/omap2/displays/panel-n8x0.c index 9565958ebaa9..3ffd987ad8b2 100644 --- a/drivers/video/omap2/displays/panel-n8x0.c +++ b/drivers/video/omap2/displays/panel-n8x0.c @@ -151,14 +151,16 @@ static void blizzard_ctrl_setup_update(struct omap_dss_device *dssdev, BLIZZARD_SRC_WRITE_LCD_DESTRUCTIVE; omapdss_rfbi_set_pixel_size(dssdev, 16); + omapdss_rfbi_set_data_lines(dssdev, 8); - omap_rfbi_configure(dssdev, 8); + omap_rfbi_configure(dssdev); blizzard_write(BLIZZARD_INPUT_WIN_X_START_0, tmp, 18); omapdss_rfbi_set_pixel_size(dssdev, 16); + omapdss_rfbi_set_data_lines(dssdev, 16); - omap_rfbi_configure(dssdev, 16); + omap_rfbi_configure(dssdev); } static void mipid_transfer(struct spi_device *spi, int cmd, const u8 *wbuf, @@ -304,6 +306,7 @@ static int n8x0_panel_power_on(struct omap_dss_device *dssdev) omapdss_rfbi_set_size(dssdev, dssdev->panel.timings.x_res, dssdev->panel.timings.y_res); omapdss_rfbi_set_pixel_size(dssdev, dssdev->ctrl.pixel_size); + omapdss_rfbi_set_data_lines(dssdev, dssdev->phy.rfbi.data_lines); r = omapdss_rfbi_display_enable(dssdev); if (r) diff --git a/drivers/video/omap2/dss/rfbi.c b/drivers/video/omap2/dss/rfbi.c index 98c65223789e..698d5b92f8e2 100644 --- a/drivers/video/omap2/dss/rfbi.c +++ b/drivers/video/omap2/dss/rfbi.c @@ -114,6 +114,7 @@ static struct { struct omap_video_timings timings; int pixel_size; + int data_lines; } rfbi; static inline void rfbi_write_reg(const struct rfbi_reg idx, u32 val) @@ -765,10 +766,10 @@ static int rfbi_configure(int rfbi_module, int bpp, int lines) return 0; } -int omap_rfbi_configure(struct omap_dss_device *dssdev, int data_lines) +int omap_rfbi_configure(struct omap_dss_device *dssdev) { return rfbi_configure(dssdev->phy.rfbi.channel, rfbi.pixel_size, - data_lines); + rfbi.data_lines); } EXPORT_SYMBOL(omap_rfbi_configure); @@ -792,6 +793,12 @@ void omapdss_rfbi_set_pixel_size(struct omap_dss_device *dssdev, int pixel_size) } EXPORT_SYMBOL(omapdss_rfbi_set_pixel_size); +void omapdss_rfbi_set_data_lines(struct omap_dss_device *dssdev, int data_lines) +{ + rfbi.data_lines = data_lines; +} +EXPORT_SYMBOL(omapdss_rfbi_set_data_lines); + static void rfbi_dump_regs(struct seq_file *s) { #define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, rfbi_read_reg(r)) @@ -898,7 +905,7 @@ int omapdss_rfbi_display_enable(struct omap_dss_device *dssdev) rfbi_config_lcd_manager(dssdev); rfbi_configure(dssdev->phy.rfbi.channel, rfbi.pixel_size, - dssdev->phy.rfbi.data_lines); + rfbi.data_lines); rfbi_set_timings(dssdev->phy.rfbi.channel, &dssdev->ctrl.rfbi_timings); diff --git a/include/video/omapdss.h b/include/video/omapdss.h index d03244a59db4..2e8bb087feff 100644 --- a/include/video/omapdss.h +++ b/include/video/omapdss.h @@ -753,9 +753,11 @@ int omapdss_rfbi_display_enable(struct omap_dss_device *dssdev); void omapdss_rfbi_display_disable(struct omap_dss_device *dssdev); int omap_rfbi_update(struct omap_dss_device *dssdev, void (*callback)(void *), void *data); -int omap_rfbi_configure(struct omap_dss_device *dssdev, int data_lines); +int omap_rfbi_configure(struct omap_dss_device *dssdev); void omapdss_rfbi_set_size(struct omap_dss_device *dssdev, u16 w, u16 h); void omapdss_rfbi_set_pixel_size(struct omap_dss_device *dssdev, int pixel_size); +void omapdss_rfbi_set_data_lines(struct omap_dss_device *dssdev, + int data_lines); #endif -- cgit v1.2.3-71-gd317 From c6b393d4bc8bc076589bf03433728c1fc2a44d4c Mon Sep 17 00:00:00 2001 From: Archit Taneja Date: Fri, 6 Jul 2012 15:30:52 +0530 Subject: OMAPDSS: DPI: Maintain copy of number of data lines in driver data The DPI driver currently relies on the omap_dss_device struct to configure the number of data lines as specified by the panel. This makes the DPI interface driver dependent on the omap_dss_device struct. Make the DPI driver data maintain it's own data lines field. A panel driver is expected to call omapdss_dpi_set_data_lines() before enabling the interface. Signed-off-by: Archit Taneja --- drivers/video/omap2/displays/panel-generic-dpi.c | 1 + drivers/video/omap2/displays/panel-lgphilips-lb035q02.c | 1 + drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c | 1 + drivers/video/omap2/displays/panel-picodlp.c | 1 + drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c | 1 + drivers/video/omap2/displays/panel-tfp410.c | 1 + drivers/video/omap2/displays/panel-tpo-td043mtea1.c | 1 + drivers/video/omap2/dss/dpi.c | 13 ++++++++++++- include/video/omapdss.h | 1 + 9 files changed, 20 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/drivers/video/omap2/displays/panel-generic-dpi.c b/drivers/video/omap2/displays/panel-generic-dpi.c index a07e18c8f71b..88295c526815 100644 --- a/drivers/video/omap2/displays/panel-generic-dpi.c +++ b/drivers/video/omap2/displays/panel-generic-dpi.c @@ -566,6 +566,7 @@ static int generic_dpi_panel_power_on(struct omap_dss_device *dssdev) return 0; omapdss_dpi_set_timings(dssdev, &dssdev->panel.timings); + omapdss_dpi_set_data_lines(dssdev, dssdev->phy.dpi.data_lines); r = omapdss_dpi_display_enable(dssdev); if (r) diff --git a/drivers/video/omap2/displays/panel-lgphilips-lb035q02.c b/drivers/video/omap2/displays/panel-lgphilips-lb035q02.c index 7e52aee36f4f..90c1cabf244e 100644 --- a/drivers/video/omap2/displays/panel-lgphilips-lb035q02.c +++ b/drivers/video/omap2/displays/panel-lgphilips-lb035q02.c @@ -56,6 +56,7 @@ static int lb035q02_panel_power_on(struct omap_dss_device *dssdev) return 0; omapdss_dpi_set_timings(dssdev, &dssdev->panel.timings); + omapdss_dpi_set_data_lines(dssdev, dssdev->phy.dpi.data_lines); r = omapdss_dpi_display_enable(dssdev); if (r) diff --git a/drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c b/drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c index e501c401ccb0..908fd268f3dc 100644 --- a/drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c +++ b/drivers/video/omap2/displays/panel-nec-nl8048hl11-01b.c @@ -176,6 +176,7 @@ static int nec_8048_panel_power_on(struct omap_dss_device *dssdev) return 0; omapdss_dpi_set_timings(dssdev, &dssdev->panel.timings); + omapdss_dpi_set_data_lines(dssdev, dssdev->phy.dpi.data_lines); r = omapdss_dpi_display_enable(dssdev); if (r) diff --git a/drivers/video/omap2/displays/panel-picodlp.c b/drivers/video/omap2/displays/panel-picodlp.c index 0d7a8ff50f16..9df87640ddd2 100644 --- a/drivers/video/omap2/displays/panel-picodlp.c +++ b/drivers/video/omap2/displays/panel-picodlp.c @@ -379,6 +379,7 @@ static int picodlp_panel_power_on(struct omap_dss_device *dssdev) msleep(1000); omapdss_dpi_set_timings(dssdev, &dssdev->panel.timings); + omapdss_dpi_set_data_lines(dssdev, dssdev->phy.dpi.data_lines); r = omapdss_dpi_display_enable(dssdev); if (r) { diff --git a/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c b/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c index 1486a81fc8b6..1ec3b277ff15 100644 --- a/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c +++ b/drivers/video/omap2/displays/panel-sharp-ls037v7dw01.c @@ -143,6 +143,7 @@ static int sharp_ls_power_on(struct omap_dss_device *dssdev) return 0; omapdss_dpi_set_timings(dssdev, &dssdev->panel.timings); + omapdss_dpi_set_data_lines(dssdev, dssdev->phy.dpi.data_lines); r = omapdss_dpi_display_enable(dssdev); if (r) diff --git a/drivers/video/omap2/displays/panel-tfp410.c b/drivers/video/omap2/displays/panel-tfp410.c index 9397236084b1..4be9a59664d5 100644 --- a/drivers/video/omap2/displays/panel-tfp410.c +++ b/drivers/video/omap2/displays/panel-tfp410.c @@ -66,6 +66,7 @@ static int tfp410_power_on(struct omap_dss_device *dssdev) return 0; omapdss_dpi_set_timings(dssdev, &dssdev->panel.timings); + omapdss_dpi_set_data_lines(dssdev, dssdev->phy.dpi.data_lines); r = omapdss_dpi_display_enable(dssdev); if (r) diff --git a/drivers/video/omap2/displays/panel-tpo-td043mtea1.c b/drivers/video/omap2/displays/panel-tpo-td043mtea1.c index 3f47f5f594b4..b5e6dbc59f0a 100644 --- a/drivers/video/omap2/displays/panel-tpo-td043mtea1.c +++ b/drivers/video/omap2/displays/panel-tpo-td043mtea1.c @@ -338,6 +338,7 @@ static int tpo_td043_enable_dss(struct omap_dss_device *dssdev) return 0; omapdss_dpi_set_timings(dssdev, &dssdev->panel.timings); + omapdss_dpi_set_data_lines(dssdev, dssdev->phy.dpi.data_lines); r = omapdss_dpi_display_enable(dssdev); if (r) diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c index d561a9198a8d..f260343e2451 100644 --- a/drivers/video/omap2/dss/dpi.c +++ b/drivers/video/omap2/dss/dpi.c @@ -43,6 +43,7 @@ static struct { struct omap_video_timings timings; struct dss_lcd_mgr_config mgr_config; + int data_lines; } dpi; static struct platform_device *dpi_get_dsidev(enum omap_dss_clk_source clk) @@ -161,7 +162,7 @@ static void dpi_config_lcd_manager(struct omap_dss_device *dssdev) dpi.mgr_config.stallmode = false; dpi.mgr_config.fifohandcheck = false; - dpi.mgr_config.video_port_width = dssdev->phy.dpi.data_lines; + dpi.mgr_config.video_port_width = dpi.data_lines; dpi.mgr_config.lcden_sig_polarity = 0; @@ -347,6 +348,16 @@ int dpi_check_timings(struct omap_dss_device *dssdev, } EXPORT_SYMBOL(dpi_check_timings); +void omapdss_dpi_set_data_lines(struct omap_dss_device *dssdev, int data_lines) +{ + mutex_lock(&dpi.lock); + + dpi.data_lines = data_lines; + + mutex_unlock(&dpi.lock); +} +EXPORT_SYMBOL(omapdss_dpi_set_data_lines); + static int __init dpi_init_display(struct omap_dss_device *dssdev) { DSSDBG("init_display\n"); diff --git a/include/video/omapdss.h b/include/video/omapdss.h index 2e8bb087feff..38633b29195d 100644 --- a/include/video/omapdss.h +++ b/include/video/omapdss.h @@ -743,6 +743,7 @@ void omapdss_dpi_set_timings(struct omap_dss_device *dssdev, struct omap_video_timings *timings); int dpi_check_timings(struct omap_dss_device *dssdev, struct omap_video_timings *timings); +void omapdss_dpi_set_data_lines(struct omap_dss_device *dssdev, int data_lines); int omapdss_sdi_display_enable(struct omap_dss_device *dssdev); void omapdss_sdi_display_disable(struct omap_dss_device *dssdev); -- cgit v1.2.3-71-gd317 From 889b4fd7eed2d7c155dc642e15a714f87ab2842c Mon Sep 17 00:00:00 2001 From: Archit Taneja Date: Fri, 20 Jul 2012 17:18:49 +0530 Subject: OMAPDSS: SDI: Maintain copy of data pairs in driver data The SDI driver currently relies on the omap_dss_device struct to configure the number of data pairs as specified by the panel. This makes the SDI interface driver dependent on the omap_dss_device struct. Make the SDI driver data maintain it's own data lines field. A panel driver is expected to call omapdss_sdi_set_datapairs() before enabling the interface. Even though we configure the number of data pairs here, this function would be finally mapped to a generic interface op called set_data_lines. The datapairs argument type has been changed from u8 to int at some places to be in sync with the 'set_data_lines' ops of other interfaces. Signed-off-by: Archit Taneja --- drivers/video/omap2/displays/panel-acx565akm.c | 1 + drivers/video/omap2/dss/dss.c | 2 +- drivers/video/omap2/dss/dss.h | 2 +- drivers/video/omap2/dss/sdi.c | 10 +++++++++- include/video/omapdss.h | 1 + 5 files changed, 13 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/drivers/video/omap2/displays/panel-acx565akm.c b/drivers/video/omap2/displays/panel-acx565akm.c index 77fe59f6a8cd..c835aa70f96f 100644 --- a/drivers/video/omap2/displays/panel-acx565akm.c +++ b/drivers/video/omap2/displays/panel-acx565akm.c @@ -601,6 +601,7 @@ static int acx_panel_power_on(struct omap_dss_device *dssdev) mutex_lock(&md->mutex); omapdss_sdi_set_timings(dssdev, &dssdev->panel.timings); + omapdss_sdi_set_datapairs(dssdev, dssdev->phy.sdi.datapairs); r = omapdss_sdi_display_enable(dssdev); if (r) { diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c index 4491ab7ef800..92353be58036 100644 --- a/drivers/video/omap2/dss/dss.c +++ b/drivers/video/omap2/dss/dss.c @@ -144,7 +144,7 @@ static void dss_restore_context(void) #undef SR #undef RR -void dss_sdi_init(u8 datapairs) +void dss_sdi_init(int datapairs) { u32 l; diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h index 78493dbd38eb..f919dc8d94b8 100644 --- a/drivers/video/omap2/dss/dss.h +++ b/drivers/video/omap2/dss/dss.h @@ -279,7 +279,7 @@ void dss_dump_clocks(struct seq_file *s); void dss_debug_dump_clocks(struct seq_file *s); #endif -void dss_sdi_init(u8 datapairs); +void dss_sdi_init(int datapairs); int dss_sdi_enable(void); void dss_sdi_disable(void); diff --git a/drivers/video/omap2/dss/sdi.c b/drivers/video/omap2/dss/sdi.c index 6ec6614009ed..3bf1bfe29585 100644 --- a/drivers/video/omap2/dss/sdi.c +++ b/drivers/video/omap2/dss/sdi.c @@ -35,6 +35,7 @@ static struct { struct dss_lcd_mgr_config mgr_config; struct omap_video_timings timings; + int datapairs; } sdi; static void sdi_config_lcd_manager(struct omap_dss_device *dssdev) @@ -106,7 +107,8 @@ int omapdss_sdi_display_enable(struct omap_dss_device *dssdev) sdi_config_lcd_manager(dssdev); - dss_sdi_init(dssdev->phy.sdi.datapairs); + dss_sdi_init(sdi.datapairs); + r = dss_sdi_enable(); if (r) goto err_sdi_enable; @@ -164,6 +166,12 @@ void omapdss_sdi_set_timings(struct omap_dss_device *dssdev, } EXPORT_SYMBOL(omapdss_sdi_set_timings); +void omapdss_sdi_set_datapairs(struct omap_dss_device *dssdev, int datapairs) +{ + sdi.datapairs = datapairs; +} +EXPORT_SYMBOL(omapdss_sdi_set_datapairs); + static int __init sdi_init_display(struct omap_dss_device *dssdev) { DSSDBG("SDI init\n"); diff --git a/include/video/omapdss.h b/include/video/omapdss.h index 38633b29195d..88ac6e8f6683 100644 --- a/include/video/omapdss.h +++ b/include/video/omapdss.h @@ -749,6 +749,7 @@ int omapdss_sdi_display_enable(struct omap_dss_device *dssdev); void omapdss_sdi_display_disable(struct omap_dss_device *dssdev); void omapdss_sdi_set_timings(struct omap_dss_device *dssdev, struct omap_video_timings *timings); +void omapdss_sdi_set_datapairs(struct omap_dss_device *dssdev, int datapairs); int omapdss_rfbi_display_enable(struct omap_dss_device *dssdev); void omapdss_rfbi_display_disable(struct omap_dss_device *dssdev); -- cgit v1.2.3-71-gd317 From dca2b1522ccab28d03fb79f6e70e70ea78033d52 Mon Sep 17 00:00:00 2001 From: Archit Taneja Date: Thu, 16 Aug 2012 18:02:00 +0530 Subject: OMAPDSS: DSI: Maintain copy of operation mode in driver data The DSI driver currently relies on the omap_dss_device struct to know the mode of operation of the DSI protocol(command or video mode). This makes the DSI interface driver dependent on the omap_dss_device struct. Make the DSI driver data maintain it's own operation mode field. The panel driver is expected to call omapdss_dsi_set_operation_mode() before the interface is enabled. Signed-off-by: Archit Taneja --- drivers/video/omap2/displays/panel-taal.c | 1 + drivers/video/omap2/dss/dsi.c | 42 +++++++++++++++++++++++-------- include/video/omapdss.h | 2 ++ 3 files changed, 34 insertions(+), 11 deletions(-) (limited to 'include') diff --git a/drivers/video/omap2/displays/panel-taal.c b/drivers/video/omap2/displays/panel-taal.c index de1dd20644f2..77aed0e51f9b 100644 --- a/drivers/video/omap2/displays/panel-taal.c +++ b/drivers/video/omap2/displays/panel-taal.c @@ -1063,6 +1063,7 @@ static int taal_power_on(struct omap_dss_device *dssdev) omapdss_dsi_set_size(dssdev, dssdev->panel.timings.x_res, dssdev->panel.timings.y_res); omapdss_dsi_set_pixel_format(dssdev, OMAP_DSS_DSI_FMT_RGB888); + omapdss_dsi_set_operation_mode(dssdev, OMAP_DSS_DSI_CMD_MODE); r = omapdss_dsi_display_enable(dssdev); if (r) { diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c index 8f94cb806145..c10c8cb373a2 100644 --- a/drivers/video/omap2/dss/dsi.c +++ b/drivers/video/omap2/dss/dsi.c @@ -335,6 +335,7 @@ struct dsi_data { struct dss_lcd_mgr_config mgr_config; struct omap_video_timings timings; enum omap_dss_dsi_pixel_format pix_fmt; + enum omap_dss_dsi_mode mode; }; struct dsi_packet_sent_handler_data { @@ -2362,7 +2363,7 @@ static int dsi_cio_init(struct omap_dss_device *dssdev) dsi_cio_timings(dsidev); - if (dssdev->panel.dsi_mode == OMAP_DSS_DSI_VIDEO_MODE) { + if (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE) { /* DDR_CLK_ALWAYS_ON */ REG_FLD_MOD(dsidev, DSI_CLK_CTRL, dssdev->panel.dsi_vm_data.ddr_clk_always_on, 13, 13); @@ -3609,9 +3610,10 @@ static void dsi_set_hs_tx_timeout(struct platform_device *dsidev, static void dsi_config_vp_num_line_buffers(struct omap_dss_device *dssdev) { struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev); + struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); int num_line_buffers; - if (dssdev->panel.dsi_mode == OMAP_DSS_DSI_VIDEO_MODE) { + if (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE) { struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); int bpp = dsi_get_pixel_size(dsi->pix_fmt); unsigned line_buf_size = dsi_get_line_buf_size(dsidev); @@ -3909,7 +3911,7 @@ static int dsi_proto_config(struct omap_dss_device *dssdev) dsi_config_vp_num_line_buffers(dssdev); - if (dssdev->panel.dsi_mode == OMAP_DSS_DSI_VIDEO_MODE) { + if (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE) { dsi_config_vp_sync_events(dssdev); dsi_config_blanking_modes(dssdev); dsi_config_cmd_mode_interleaving(dssdev); @@ -3988,7 +3990,7 @@ static void dsi_proto_timings(struct omap_dss_device *dssdev) DSSDBG("enter_hs_mode_lat %u, exit_hs_mode_lat %u\n", enter_hs_mode_lat, exit_hs_mode_lat); - if (dssdev->panel.dsi_mode == OMAP_DSS_DSI_VIDEO_MODE) { + if (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE) { /* TODO: Implement a video mode check_timings function */ int hsa = dssdev->panel.dsi_vm_data.hsa; int hfp = dssdev->panel.dsi_vm_data.hfp; @@ -4113,7 +4115,7 @@ int dsi_enable_video_output(struct omap_dss_device *dssdev, int channel) u16 word_count; int r; - if (dssdev->panel.dsi_mode == OMAP_DSS_DSI_VIDEO_MODE) { + if (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE) { switch (dsi->pix_fmt) { case OMAP_DSS_DSI_FMT_RGB888: data_type = MIPI_DSI_PACKED_PIXEL_STREAM_24; @@ -4149,7 +4151,7 @@ int dsi_enable_video_output(struct omap_dss_device *dssdev, int channel) r = dss_mgr_enable(dssdev->manager); if (r) { - if (dssdev->panel.dsi_mode == OMAP_DSS_DSI_VIDEO_MODE) { + if (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE) { dsi_if_enable(dsidev, false); dsi_vc_enable(dsidev, channel, false); } @@ -4164,8 +4166,9 @@ EXPORT_SYMBOL(dsi_enable_video_output); void dsi_disable_video_output(struct omap_dss_device *dssdev, int channel) { struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev); + struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); - if (dssdev->panel.dsi_mode == OMAP_DSS_DSI_VIDEO_MODE) { + if (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE) { dsi_if_enable(dsidev, false); dsi_vc_enable(dsidev, channel, false); @@ -4379,7 +4382,7 @@ static int dsi_display_init_dispc(struct omap_dss_device *dssdev) int r; u32 irq = 0; - if (dssdev->panel.dsi_mode == OMAP_DSS_DSI_CMD_MODE) { + if (dsi->mode == OMAP_DSS_DSI_CMD_MODE) { dsi->timings.hsw = 1; dsi->timings.hfp = 1; dsi->timings.hbp = 1; @@ -4429,7 +4432,7 @@ static int dsi_display_init_dispc(struct omap_dss_device *dssdev) return 0; err1: - if (dssdev->panel.dsi_mode == OMAP_DSS_DSI_CMD_MODE) + if (dsi->mode == OMAP_DSS_DSI_CMD_MODE) omap_dispc_unregister_isr(dsi_framedone_irq_callback, (void *) dssdev, irq); err: @@ -4438,7 +4441,10 @@ err: static void dsi_display_uninit_dispc(struct omap_dss_device *dssdev) { - if (dssdev->panel.dsi_mode == OMAP_DSS_DSI_CMD_MODE) { + struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev); + struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); + + if (dsi->mode == OMAP_DSS_DSI_CMD_MODE) { u32 irq; irq = dispc_mgr_get_framedone_irq(dssdev->manager->id); @@ -4695,6 +4701,20 @@ void omapdss_dsi_set_pixel_format(struct omap_dss_device *dssdev, } EXPORT_SYMBOL(omapdss_dsi_set_pixel_format); +void omapdss_dsi_set_operation_mode(struct omap_dss_device *dssdev, + enum omap_dss_dsi_mode mode) +{ + struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev); + struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); + + mutex_lock(&dsi->lock); + + dsi->mode = mode; + + mutex_unlock(&dsi->lock); +} +EXPORT_SYMBOL(omapdss_dsi_set_operation_mode); + static int __init dsi_init_display(struct omap_dss_device *dssdev) { struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev); @@ -4702,7 +4722,7 @@ static int __init dsi_init_display(struct omap_dss_device *dssdev) DSSDBG("DSI init\n"); - if (dssdev->panel.dsi_mode == OMAP_DSS_DSI_CMD_MODE) { + if (dsi->mode == OMAP_DSS_DSI_CMD_MODE) { dssdev->caps = OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE | OMAP_DSS_DISPLAY_CAP_TEAR_ELIM; } diff --git a/include/video/omapdss.h b/include/video/omapdss.h index 88ac6e8f6683..ef14ac552023 100644 --- a/include/video/omapdss.h +++ b/include/video/omapdss.h @@ -724,6 +724,8 @@ void omapdss_dsi_set_timings(struct omap_dss_device *dssdev, void omapdss_dsi_set_size(struct omap_dss_device *dssdev, u16 w, u16 h); void omapdss_dsi_set_pixel_format(struct omap_dss_device *dssdev, enum omap_dss_dsi_pixel_format fmt); +void omapdss_dsi_set_operation_mode(struct omap_dss_device *dssdev, + enum omap_dss_dsi_mode mode); int omap_dsi_update(struct omap_dss_device *dssdev, int channel, void (*callback)(int, void *), void *data); -- cgit v1.2.3-71-gd317 From 6b84937577486a79cbc2196573ff7387a9f75cb0 Mon Sep 17 00:00:00 2001 From: Archit Taneja Date: Mon, 13 Aug 2012 22:12:24 +0530 Subject: OMAPDSS: DSI: Rename dsi_videomode_data to dsi_videomode_timings The struct omap_dss_dsi_videomode_data holds fields which need to be configured for DSI to operate in video mode. Rename the struct to dsi_videomode_timings. One reason to do this is because most of the fields in the struct are timings related. The other reason is to create a generic op for output specific timings. This generic op can be considered as a way to set custom or private timings for the output. In the case of OMAP, DSI and RFBI require some more timings apart from the relgular DISPC timings. The structs omap_dss_videomode_timings and rfbi_timings can be considered as these output specific timings respectively. Signed-off-by: Archit Taneja --- drivers/video/omap2/dss/dsi.c | 32 ++++++++++++++++---------------- include/video/omapdss.h | 4 ++-- 2 files changed, 18 insertions(+), 18 deletions(-) (limited to 'include') diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c index c10c8cb373a2..62549f61ad2f 100644 --- a/drivers/video/omap2/dss/dsi.c +++ b/drivers/video/omap2/dss/dsi.c @@ -2366,7 +2366,7 @@ static int dsi_cio_init(struct omap_dss_device *dssdev) if (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE) { /* DDR_CLK_ALWAYS_ON */ REG_FLD_MOD(dsidev, DSI_CLK_CTRL, - dssdev->panel.dsi_vm_data.ddr_clk_always_on, 13, 13); + dssdev->panel.dsi_vm_timings.ddr_clk_always_on, 13, 13); } dsi->ulps_enabled = false; @@ -2704,7 +2704,7 @@ void omapdss_dsi_vc_enable_hs(struct omap_dss_device *dssdev, int channel, dsi_force_tx_stop_mode_io(dsidev); /* start the DDR clock by sending a NULL packet */ - if (dssdev->panel.dsi_vm_data.ddr_clk_always_on && enable) + if (dssdev->panel.dsi_vm_timings.ddr_clk_always_on && enable) dsi_vc_send_null(dssdev, channel); } EXPORT_SYMBOL(omapdss_dsi_vc_enable_hs); @@ -3638,8 +3638,8 @@ static void dsi_config_vp_num_line_buffers(struct omap_dss_device *dssdev) static void dsi_config_vp_sync_events(struct omap_dss_device *dssdev) { struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev); - bool vsync_end = dssdev->panel.dsi_vm_data.vp_vsync_end; - bool hsync_end = dssdev->panel.dsi_vm_data.vp_hsync_end; + bool vsync_end = dssdev->panel.dsi_vm_timings.vp_vsync_end; + bool hsync_end = dssdev->panel.dsi_vm_timings.vp_hsync_end; u32 r; r = dsi_read_reg(dsidev, DSI_CTRL); @@ -3656,10 +3656,10 @@ static void dsi_config_vp_sync_events(struct omap_dss_device *dssdev) static void dsi_config_blanking_modes(struct omap_dss_device *dssdev) { struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev); - int blanking_mode = dssdev->panel.dsi_vm_data.blanking_mode; - int hfp_blanking_mode = dssdev->panel.dsi_vm_data.hfp_blanking_mode; - int hbp_blanking_mode = dssdev->panel.dsi_vm_data.hbp_blanking_mode; - int hsa_blanking_mode = dssdev->panel.dsi_vm_data.hsa_blanking_mode; + int blanking_mode = dssdev->panel.dsi_vm_timings.blanking_mode; + int hfp_blanking_mode = dssdev->panel.dsi_vm_timings.hfp_blanking_mode; + int hbp_blanking_mode = dssdev->panel.dsi_vm_timings.hbp_blanking_mode; + int hsa_blanking_mode = dssdev->panel.dsi_vm_timings.hsa_blanking_mode; u32 r; /* @@ -3992,14 +3992,14 @@ static void dsi_proto_timings(struct omap_dss_device *dssdev) if (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE) { /* TODO: Implement a video mode check_timings function */ - int hsa = dssdev->panel.dsi_vm_data.hsa; - int hfp = dssdev->panel.dsi_vm_data.hfp; - int hbp = dssdev->panel.dsi_vm_data.hbp; - int vsa = dssdev->panel.dsi_vm_data.vsa; - int vfp = dssdev->panel.dsi_vm_data.vfp; - int vbp = dssdev->panel.dsi_vm_data.vbp; - int window_sync = dssdev->panel.dsi_vm_data.window_sync; - bool hsync_end = dssdev->panel.dsi_vm_data.vp_hsync_end; + int hsa = dssdev->panel.dsi_vm_timings.hsa; + int hfp = dssdev->panel.dsi_vm_timings.hfp; + int hbp = dssdev->panel.dsi_vm_timings.hbp; + int vsa = dssdev->panel.dsi_vm_timings.vsa; + int vfp = dssdev->panel.dsi_vm_timings.vfp; + int vbp = dssdev->panel.dsi_vm_timings.vbp; + int window_sync = dssdev->panel.dsi_vm_timings.window_sync; + bool hsync_end = dssdev->panel.dsi_vm_timings.vp_hsync_end; struct omap_video_timings *timings = &dsi->timings; int bpp = dsi_get_pixel_size(dsi->pix_fmt); int tl, t_he, width_bytes; diff --git a/include/video/omapdss.h b/include/video/omapdss.h index ef14ac552023..363235cc642f 100644 --- a/include/video/omapdss.h +++ b/include/video/omapdss.h @@ -243,7 +243,7 @@ void rfbi_bus_unlock(void); /* DSI */ -struct omap_dss_dsi_videomode_data { +struct omap_dss_dsi_videomode_timings { /* DSI video mode blanking data */ /* Unit: byte clock cycles */ u16 hsa; @@ -564,7 +564,7 @@ struct omap_dss_device { enum omap_dss_dsi_pixel_format dsi_pix_fmt; enum omap_dss_dsi_mode dsi_mode; - struct omap_dss_dsi_videomode_data dsi_vm_data; + struct omap_dss_dsi_videomode_timings dsi_vm_timings; } panel; struct { -- cgit v1.2.3-71-gd317 From 0b3ffe397ab2cfae526568880ab4621ff8f113c9 Mon Sep 17 00:00:00 2001 From: Archit Taneja Date: Mon, 13 Aug 2012 22:13:39 +0530 Subject: OMAPDSS: DSI: Maintain copy of video mode timings in driver data The DSI driver currently relies on the omap_dss_device struct to receive the video mode timings requested by the panel driver. This makes the DSI interface driver dependent on the omap_dss_device struct. Make the DSI driver data maintain it's own video mode timings field. The panel driver is expected to call omapdss_dsi_set_videomode_timings() to configure the video mode timings before the interface is enabled. Signed-off-by: Archit Taneja --- drivers/video/omap2/dss/dsi.c | 50 +++++++++++++++++++++++++++++-------------- include/video/omapdss.h | 2 ++ 2 files changed, 36 insertions(+), 16 deletions(-) (limited to 'include') diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c index 62549f61ad2f..96d0024ada40 100644 --- a/drivers/video/omap2/dss/dsi.c +++ b/drivers/video/omap2/dss/dsi.c @@ -336,6 +336,7 @@ struct dsi_data { struct omap_video_timings timings; enum omap_dss_dsi_pixel_format pix_fmt; enum omap_dss_dsi_mode mode; + struct omap_dss_dsi_videomode_timings vm_timings; }; struct dsi_packet_sent_handler_data { @@ -2366,7 +2367,7 @@ static int dsi_cio_init(struct omap_dss_device *dssdev) if (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE) { /* DDR_CLK_ALWAYS_ON */ REG_FLD_MOD(dsidev, DSI_CLK_CTRL, - dssdev->panel.dsi_vm_timings.ddr_clk_always_on, 13, 13); + dsi->vm_timings.ddr_clk_always_on, 13, 13); } dsi->ulps_enabled = false; @@ -2688,6 +2689,7 @@ void omapdss_dsi_vc_enable_hs(struct omap_dss_device *dssdev, int channel, bool enable) { struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev); + struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); DSSDBG("dsi_vc_enable_hs(%d, %d)\n", channel, enable); @@ -2704,7 +2706,7 @@ void omapdss_dsi_vc_enable_hs(struct omap_dss_device *dssdev, int channel, dsi_force_tx_stop_mode_io(dsidev); /* start the DDR clock by sending a NULL packet */ - if (dssdev->panel.dsi_vm_timings.ddr_clk_always_on && enable) + if (dsi->vm_timings.ddr_clk_always_on && enable) dsi_vc_send_null(dssdev, channel); } EXPORT_SYMBOL(omapdss_dsi_vc_enable_hs); @@ -3638,8 +3640,9 @@ static void dsi_config_vp_num_line_buffers(struct omap_dss_device *dssdev) static void dsi_config_vp_sync_events(struct omap_dss_device *dssdev) { struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev); - bool vsync_end = dssdev->panel.dsi_vm_timings.vp_vsync_end; - bool hsync_end = dssdev->panel.dsi_vm_timings.vp_hsync_end; + struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); + bool vsync_end = dsi->vm_timings.vp_vsync_end; + bool hsync_end = dsi->vm_timings.vp_hsync_end; u32 r; r = dsi_read_reg(dsidev, DSI_CTRL); @@ -3656,10 +3659,11 @@ static void dsi_config_vp_sync_events(struct omap_dss_device *dssdev) static void dsi_config_blanking_modes(struct omap_dss_device *dssdev) { struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev); - int blanking_mode = dssdev->panel.dsi_vm_timings.blanking_mode; - int hfp_blanking_mode = dssdev->panel.dsi_vm_timings.hfp_blanking_mode; - int hbp_blanking_mode = dssdev->panel.dsi_vm_timings.hbp_blanking_mode; - int hsa_blanking_mode = dssdev->panel.dsi_vm_timings.hsa_blanking_mode; + struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); + int blanking_mode = dsi->vm_timings.blanking_mode; + int hfp_blanking_mode = dsi->vm_timings.hfp_blanking_mode; + int hbp_blanking_mode = dsi->vm_timings.hbp_blanking_mode; + int hsa_blanking_mode = dsi->vm_timings.hsa_blanking_mode; u32 r; /* @@ -3992,14 +3996,14 @@ static void dsi_proto_timings(struct omap_dss_device *dssdev) if (dsi->mode == OMAP_DSS_DSI_VIDEO_MODE) { /* TODO: Implement a video mode check_timings function */ - int hsa = dssdev->panel.dsi_vm_timings.hsa; - int hfp = dssdev->panel.dsi_vm_timings.hfp; - int hbp = dssdev->panel.dsi_vm_timings.hbp; - int vsa = dssdev->panel.dsi_vm_timings.vsa; - int vfp = dssdev->panel.dsi_vm_timings.vfp; - int vbp = dssdev->panel.dsi_vm_timings.vbp; - int window_sync = dssdev->panel.dsi_vm_timings.window_sync; - bool hsync_end = dssdev->panel.dsi_vm_timings.vp_hsync_end; + int hsa = dsi->vm_timings.hsa; + int hfp = dsi->vm_timings.hfp; + int hbp = dsi->vm_timings.hbp; + int vsa = dsi->vm_timings.vsa; + int vfp = dsi->vm_timings.vfp; + int vbp = dsi->vm_timings.vbp; + int window_sync = dsi->vm_timings.window_sync; + bool hsync_end = dsi->vm_timings.vp_hsync_end; struct omap_video_timings *timings = &dsi->timings; int bpp = dsi_get_pixel_size(dsi->pix_fmt); int tl, t_he, width_bytes; @@ -4715,6 +4719,20 @@ void omapdss_dsi_set_operation_mode(struct omap_dss_device *dssdev, } EXPORT_SYMBOL(omapdss_dsi_set_operation_mode); +void omapdss_dsi_set_videomode_timings(struct omap_dss_device *dssdev, + struct omap_dss_dsi_videomode_timings *timings) +{ + struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev); + struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev); + + mutex_lock(&dsi->lock); + + dsi->vm_timings = *timings; + + mutex_unlock(&dsi->lock); +} +EXPORT_SYMBOL(omapdss_dsi_set_videomode_timings); + static int __init dsi_init_display(struct omap_dss_device *dssdev) { struct platform_device *dsidev = dsi_get_dsidev_from_dssdev(dssdev); diff --git a/include/video/omapdss.h b/include/video/omapdss.h index 363235cc642f..bf6d16b405a2 100644 --- a/include/video/omapdss.h +++ b/include/video/omapdss.h @@ -726,6 +726,8 @@ void omapdss_dsi_set_pixel_format(struct omap_dss_device *dssdev, enum omap_dss_dsi_pixel_format fmt); void omapdss_dsi_set_operation_mode(struct omap_dss_device *dssdev, enum omap_dss_dsi_mode mode); +void omapdss_dsi_set_videomode_timings(struct omap_dss_device *dssdev, + struct omap_dss_dsi_videomode_timings *timings); int omap_dsi_update(struct omap_dss_device *dssdev, int channel, void (*callback)(int, void *), void *data); -- cgit v1.2.3-71-gd317 From 6e883324b2ef9971ec208da2bf2f49268c36f2bb Mon Sep 17 00:00:00 2001 From: Archit Taneja Date: Mon, 13 Aug 2012 22:23:29 +0530 Subject: OMAPDSS: RFBI: Maitain copy of rfbi timings in driver data The RFBI driver currently relies on the omap_dss_device struct to receive the rfbi specific timings requested by the panel driver. This makes the RFBI interface driver dependent on the omap_dss_device struct. Make the RFBI driver data maintain it's own rfbi specific timings field. The panel driver is expected to call omapdss_rfbi_set_interface_timings() to configure the rfbi timings before the interface is enabled. Signed-off-by: Archit Taneja --- drivers/video/omap2/displays/panel-n8x0.c | 1 + drivers/video/omap2/dss/rfbi.c | 12 +++++++++--- include/video/omapdss.h | 2 ++ 3 files changed, 12 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/drivers/video/omap2/displays/panel-n8x0.c b/drivers/video/omap2/displays/panel-n8x0.c index 3ffd987ad8b2..17ae85e0033f 100644 --- a/drivers/video/omap2/displays/panel-n8x0.c +++ b/drivers/video/omap2/displays/panel-n8x0.c @@ -307,6 +307,7 @@ static int n8x0_panel_power_on(struct omap_dss_device *dssdev) dssdev->panel.timings.y_res); omapdss_rfbi_set_pixel_size(dssdev, dssdev->ctrl.pixel_size); omapdss_rfbi_set_data_lines(dssdev, dssdev->phy.rfbi.data_lines); + omapdss_rfbi_set_interface_timings(dssdev, &dssdev->ctrl.rfbi_timings); r = omapdss_rfbi_display_enable(dssdev); if (r) diff --git a/drivers/video/omap2/dss/rfbi.c b/drivers/video/omap2/dss/rfbi.c index 698d5b92f8e2..5a9c0e9d8710 100644 --- a/drivers/video/omap2/dss/rfbi.c +++ b/drivers/video/omap2/dss/rfbi.c @@ -115,6 +115,7 @@ static struct { struct omap_video_timings timings; int pixel_size; int data_lines; + struct rfbi_timings intf_timings; } rfbi; static inline void rfbi_write_reg(const struct rfbi_reg idx, u32 val) @@ -799,6 +800,13 @@ void omapdss_rfbi_set_data_lines(struct omap_dss_device *dssdev, int data_lines) } EXPORT_SYMBOL(omapdss_rfbi_set_data_lines); +void omapdss_rfbi_set_interface_timings(struct omap_dss_device *dssdev, + struct rfbi_timings *timings) +{ + rfbi.intf_timings = *timings; +} +EXPORT_SYMBOL(omapdss_rfbi_set_interface_timings); + static void rfbi_dump_regs(struct seq_file *s) { #define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, rfbi_read_reg(r)) @@ -907,9 +915,7 @@ int omapdss_rfbi_display_enable(struct omap_dss_device *dssdev) rfbi_configure(dssdev->phy.rfbi.channel, rfbi.pixel_size, rfbi.data_lines); - rfbi_set_timings(dssdev->phy.rfbi.channel, - &dssdev->ctrl.rfbi_timings); - + rfbi_set_timings(dssdev->phy.rfbi.channel, &rfbi.intf_timings); return 0; err1: diff --git a/include/video/omapdss.h b/include/video/omapdss.h index bf6d16b405a2..b868123e6cf1 100644 --- a/include/video/omapdss.h +++ b/include/video/omapdss.h @@ -765,5 +765,7 @@ void omapdss_rfbi_set_pixel_size(struct omap_dss_device *dssdev, int pixel_size); void omapdss_rfbi_set_data_lines(struct omap_dss_device *dssdev, int data_lines); +void omapdss_rfbi_set_interface_timings(struct omap_dss_device *dssdev, + struct rfbi_timings *timings); #endif -- cgit v1.2.3-71-gd317 From ca08649eb5dd30f11a5a8fe8659b48899b7ea6a1 Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Thu, 16 Aug 2012 11:31:27 -0400 Subject: Revert "xen PVonHVM: move shared_info to MMIO before kexec" This reverts commit 00e37bdb0113a98408de42db85be002f21dbffd3. During shutdown of PVHVM guests with more than 2VCPUs on certain machines we can hit the race where the replaced shared_info is not replaced fast enough and the PV time clock retries reading the same area over and over without any any success and is stuck in an infinite loop. Acked-by: Olaf Hering Signed-off-by: Konrad Rzeszutek Wilk --- arch/x86/xen/enlighten.c | 118 +++++---------------------------------------- arch/x86/xen/suspend.c | 2 +- arch/x86/xen/xen-ops.h | 2 +- drivers/xen/platform-pci.c | 15 ------ include/xen/events.h | 2 - 5 files changed, 13 insertions(+), 126 deletions(-) (limited to 'include') diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index a6f8acbdfc9a..f1814fc2cb77 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -31,7 +31,6 @@ #include #include #include -#include #include #include @@ -1472,130 +1471,38 @@ asmlinkage void __init xen_start_kernel(void) #endif } -#ifdef CONFIG_XEN_PVHVM -/* - * The pfn containing the shared_info is located somewhere in RAM. This - * will cause trouble if the current kernel is doing a kexec boot into a - * new kernel. The new kernel (and its startup code) can not know where - * the pfn is, so it can not reserve the page. The hypervisor will - * continue to update the pfn, and as a result memory corruption occours - * in the new kernel. - * - * One way to work around this issue is to allocate a page in the - * xen-platform pci device's BAR memory range. But pci init is done very - * late and the shared_info page is already in use very early to read - * the pvclock. So moving the pfn from RAM to MMIO is racy because some - * code paths on other vcpus could access the pfn during the small - * window when the old pfn is moved to the new pfn. There is even a - * small window were the old pfn is not backed by a mfn, and during that - * time all reads return -1. - * - * Because it is not known upfront where the MMIO region is located it - * can not be used right from the start in xen_hvm_init_shared_info. - * - * To minimise trouble the move of the pfn is done shortly before kexec. - * This does not eliminate the race because all vcpus are still online - * when the syscore_ops will be called. But hopefully there is no work - * pending at this point in time. Also the syscore_op is run last which - * reduces the risk further. - */ - -static struct shared_info *xen_hvm_shared_info; - -static void xen_hvm_connect_shared_info(unsigned long pfn) +void __ref xen_hvm_init_shared_info(void) { + int cpu; struct xen_add_to_physmap xatp; + static struct shared_info *shared_info_page = 0; + if (!shared_info_page) + shared_info_page = (struct shared_info *) + extend_brk(PAGE_SIZE, PAGE_SIZE); xatp.domid = DOMID_SELF; xatp.idx = 0; xatp.space = XENMAPSPACE_shared_info; - xatp.gpfn = pfn; + xatp.gpfn = __pa(shared_info_page) >> PAGE_SHIFT; if (HYPERVISOR_memory_op(XENMEM_add_to_physmap, &xatp)) BUG(); -} -static void xen_hvm_set_shared_info(struct shared_info *sip) -{ - int cpu; - - HYPERVISOR_shared_info = sip; + HYPERVISOR_shared_info = (struct shared_info *)shared_info_page; /* xen_vcpu is a pointer to the vcpu_info struct in the shared_info * page, we use it in the event channel upcall and in some pvclock * related functions. We don't need the vcpu_info placement * optimizations because we don't use any pv_mmu or pv_irq op on * HVM. - * When xen_hvm_set_shared_info is run at boot time only vcpu 0 is - * online but xen_hvm_set_shared_info is run at resume time too and + * When xen_hvm_init_shared_info is run at boot time only vcpu 0 is + * online but xen_hvm_init_shared_info is run at resume time too and * in that case multiple vcpus might be online. */ for_each_online_cpu(cpu) { per_cpu(xen_vcpu, cpu) = &HYPERVISOR_shared_info->vcpu_info[cpu]; } } -/* Reconnect the shared_info pfn to a mfn */ -void xen_hvm_resume_shared_info(void) -{ - xen_hvm_connect_shared_info(__pa(xen_hvm_shared_info) >> PAGE_SHIFT); -} - -#ifdef CONFIG_KEXEC -static struct shared_info *xen_hvm_shared_info_kexec; -static unsigned long xen_hvm_shared_info_pfn_kexec; - -/* Remember a pfn in MMIO space for kexec reboot */ -void __devinit xen_hvm_prepare_kexec(struct shared_info *sip, unsigned long pfn) -{ - xen_hvm_shared_info_kexec = sip; - xen_hvm_shared_info_pfn_kexec = pfn; -} - -static void xen_hvm_syscore_shutdown(void) -{ - struct xen_memory_reservation reservation = { - .domid = DOMID_SELF, - .nr_extents = 1, - }; - unsigned long prev_pfn; - int rc; - - if (!xen_hvm_shared_info_kexec) - return; - - prev_pfn = __pa(xen_hvm_shared_info) >> PAGE_SHIFT; - set_xen_guest_handle(reservation.extent_start, &prev_pfn); - - /* Move pfn to MMIO, disconnects previous pfn from mfn */ - xen_hvm_connect_shared_info(xen_hvm_shared_info_pfn_kexec); - - /* Update pointers, following hypercall is also a memory barrier */ - xen_hvm_set_shared_info(xen_hvm_shared_info_kexec); - - /* Allocate new mfn for previous pfn */ - do { - rc = HYPERVISOR_memory_op(XENMEM_populate_physmap, &reservation); - if (rc == 0) - msleep(123); - } while (rc == 0); - - /* Make sure the previous pfn is really connected to a (new) mfn */ - BUG_ON(rc != 1); -} - -static struct syscore_ops xen_hvm_syscore_ops = { - .shutdown = xen_hvm_syscore_shutdown, -}; -#endif - -/* Use a pfn in RAM, may move to MMIO before kexec. */ -static void __init xen_hvm_init_shared_info(void) -{ - /* Remember pointer for resume */ - xen_hvm_shared_info = extend_brk(PAGE_SIZE, PAGE_SIZE); - xen_hvm_connect_shared_info(__pa(xen_hvm_shared_info) >> PAGE_SHIFT); - xen_hvm_set_shared_info(xen_hvm_shared_info); -} - +#ifdef CONFIG_XEN_PVHVM static void __init init_hvm_pv_info(void) { int major, minor; @@ -1646,9 +1553,6 @@ static void __init xen_hvm_guest_init(void) init_hvm_pv_info(); xen_hvm_init_shared_info(); -#ifdef CONFIG_KEXEC - register_syscore_ops(&xen_hvm_syscore_ops); -#endif if (xen_feature(XENFEAT_hvm_callback_vector)) xen_have_vector_callback = 1; diff --git a/arch/x86/xen/suspend.c b/arch/x86/xen/suspend.c index ae8a00c39de4..45329c8c226e 100644 --- a/arch/x86/xen/suspend.c +++ b/arch/x86/xen/suspend.c @@ -30,7 +30,7 @@ void xen_arch_hvm_post_suspend(int suspend_cancelled) { #ifdef CONFIG_XEN_PVHVM int cpu; - xen_hvm_resume_shared_info(); + xen_hvm_init_shared_info(); xen_callback_vector(); xen_unplug_emulated_devices(); if (xen_feature(XENFEAT_hvm_safe_pvclock)) { diff --git a/arch/x86/xen/xen-ops.h b/arch/x86/xen/xen-ops.h index 1e4329e04e0f..202d4c150154 100644 --- a/arch/x86/xen/xen-ops.h +++ b/arch/x86/xen/xen-ops.h @@ -41,7 +41,7 @@ void xen_enable_syscall(void); void xen_vcpu_restore(void); void xen_callback_vector(void); -void xen_hvm_resume_shared_info(void); +void xen_hvm_init_shared_info(void); void xen_unplug_emulated_devices(void); void __init xen_build_dynamic_phys_to_machine(void); diff --git a/drivers/xen/platform-pci.c b/drivers/xen/platform-pci.c index d4c50d63acbc..97ca359ae2bd 100644 --- a/drivers/xen/platform-pci.c +++ b/drivers/xen/platform-pci.c @@ -101,19 +101,6 @@ static int platform_pci_resume(struct pci_dev *pdev) return 0; } -static void __devinit prepare_shared_info(void) -{ -#ifdef CONFIG_KEXEC - unsigned long addr; - struct shared_info *hvm_shared_info; - - addr = alloc_xen_mmio(PAGE_SIZE); - hvm_shared_info = ioremap(addr, PAGE_SIZE); - memset(hvm_shared_info, 0, PAGE_SIZE); - xen_hvm_prepare_kexec(hvm_shared_info, addr >> PAGE_SHIFT); -#endif -} - static int __devinit platform_pci_init(struct pci_dev *pdev, const struct pci_device_id *ent) { @@ -151,8 +138,6 @@ static int __devinit platform_pci_init(struct pci_dev *pdev, platform_mmio = mmio_addr; platform_mmiolen = mmio_len; - prepare_shared_info(); - if (!xen_have_vector_callback) { ret = xen_allocate_irq(pdev); if (ret) { diff --git a/include/xen/events.h b/include/xen/events.h index 9c641deb65d2..04399b28e821 100644 --- a/include/xen/events.h +++ b/include/xen/events.h @@ -58,8 +58,6 @@ void notify_remote_via_irq(int irq); void xen_irq_resume(void); -void xen_hvm_prepare_kexec(struct shared_info *sip, unsigned long pfn); - /* Clear an irq's pending state, in preparation for polling on it */ void xen_clear_irq_pending(int irq); void xen_set_irq_pending(int irq); -- cgit v1.2.3-71-gd317 From c7a9b09b1a4a1fbccb2ec409daec95f9068d77c0 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Wed, 15 Aug 2012 20:51:54 +0000 Subject: ARM: omap: allow building omap44xx without SMP The new omap4 cpuidle implementation currently requires ARCH_NEEDS_CPU_IDLE_COUPLED, which only works on SMP. This patch makes it possible to build a non-SMP kernel for that platform. This is not normally desired for end-users but can be useful for testing. Without this patch, building rand-0y2jSKT results in: drivers/cpuidle/coupled.c: In function 'cpuidle_coupled_poke': drivers/cpuidle/coupled.c:317:3: error: implicit declaration of function '__smp_call_function_single' [-Werror=implicit-function-declaration] It's not clear if this patch is the best solution for the problem at hand. I have made sure that we can now build the kernel in all configurations, but that does not mean it will actually work on an OMAP44xx. Signed-off-by: Arnd Bergmann Acked-by: Santosh Shilimkar Tested-by: Santosh Shilimkar Cc: Kevin Hilman Cc: Tony Lindgren --- arch/arm/mach-omap2/Kconfig | 2 +- arch/arm/mach-omap2/cpuidle44xx.c | 3 ++- include/linux/cpuidle.h | 4 ++++ 3 files changed, 7 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig index dd2db025f778..66a8be331caf 100644 --- a/arch/arm/mach-omap2/Kconfig +++ b/arch/arm/mach-omap2/Kconfig @@ -62,7 +62,7 @@ config ARCH_OMAP4 select PM_OPP if PM select USB_ARCH_HAS_EHCI if USB_SUPPORT select ARM_CPU_SUSPEND if PM - select ARCH_NEEDS_CPU_IDLE_COUPLED + select ARCH_NEEDS_CPU_IDLE_COUPLED if SMP config SOC_OMAP5 bool "TI OMAP5" diff --git a/arch/arm/mach-omap2/cpuidle44xx.c b/arch/arm/mach-omap2/cpuidle44xx.c index ee05e193fc61..288bee6cbb76 100644 --- a/arch/arm/mach-omap2/cpuidle44xx.c +++ b/arch/arm/mach-omap2/cpuidle44xx.c @@ -238,8 +238,9 @@ int __init omap4_idle_init(void) for_each_cpu(cpu_id, cpu_online_mask) { dev = &per_cpu(omap4_idle_dev, cpu_id); dev->cpu = cpu_id; +#ifdef CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED dev->coupled_cpus = *cpu_online_mask; - +#endif cpuidle_register_driver(&omap4_idle_driver); if (cpuidle_register_device(dev)) { diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h index 040b13b5c14a..279b1eaa8b73 100644 --- a/include/linux/cpuidle.h +++ b/include/linux/cpuidle.h @@ -194,6 +194,10 @@ static inline int cpuidle_play_dead(void) {return -ENODEV; } #ifdef CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED void cpuidle_coupled_parallel_barrier(struct cpuidle_device *dev, atomic_t *a); +#else +static inline void cpuidle_coupled_parallel_barrier(struct cpuidle_device *dev, atomic_t *a) +{ +} #endif /****************************** -- cgit v1.2.3-71-gd317 From 22f5d115a2b087c977128f84ee557ad71530330e Mon Sep 17 00:00:00 2001 From: Ville Syrjälä Date: Tue, 14 Aug 2012 10:53:38 +0000 Subject: drm: Initialize object type when using DRM_MODE() macro MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit DRM_MODE() macro doesn't initialize the type of the base drm object. When a copy is made of the mode, the object type is overwritten with zero, and the the object can no longer be found by drm_mode_object_find() due to the type check failing. Signed-off-by: Ville Syrjälä Signed-off-by: Dave Airlie --- include/drm/drm_crtc.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index ced362533e3c..bfacf0d5a225 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -118,7 +118,8 @@ enum drm_mode_status { .hdisplay = (hd), .hsync_start = (hss), .hsync_end = (hse), \ .htotal = (ht), .hskew = (hsk), .vdisplay = (vd), \ .vsync_start = (vss), .vsync_end = (vse), .vtotal = (vt), \ - .vscan = (vs), .flags = (f), .vrefresh = 0 + .vscan = (vs), .flags = (f), .vrefresh = 0, \ + .base.type = DRM_MODE_OBJECT_MODE #define CRTC_INTERLACE_HALVE_V 0x1 /* halve V values for interlacing */ -- cgit v1.2.3-71-gd317 From 7c4eaca4162d0b5ad4fb39f974d7ffd71b9daa09 Mon Sep 17 00:00:00 2001 From: Jakob Bornecrantz Date: Thu, 16 Aug 2012 08:29:03 +0000 Subject: drm: Check for invalid cursor flags Signed-off-by: Jakob Bornecrantz Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie --- drivers/gpu/drm/drm_crtc.c | 2 +- include/drm/drm_mode.h | 5 +++-- 2 files changed, 4 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 08a7aa722d6b..6fbfc244748f 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -1981,7 +1981,7 @@ int drm_mode_cursor_ioctl(struct drm_device *dev, if (!drm_core_check_feature(dev, DRIVER_MODESET)) return -EINVAL; - if (!req->flags) + if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags)) return -EINVAL; mutex_lock(&dev->mode_config.mutex); diff --git a/include/drm/drm_mode.h b/include/drm/drm_mode.h index 5581980b14f6..3d6301b6ec16 100644 --- a/include/drm/drm_mode.h +++ b/include/drm/drm_mode.h @@ -359,8 +359,9 @@ struct drm_mode_mode_cmd { struct drm_mode_modeinfo mode; }; -#define DRM_MODE_CURSOR_BO (1<<0) -#define DRM_MODE_CURSOR_MOVE (1<<1) +#define DRM_MODE_CURSOR_BO 0x01 +#define DRM_MODE_CURSOR_MOVE 0x02 +#define DRM_MODE_CURSOR_FLAGS 0x03 /* * depending on the value in flags different members are used. -- cgit v1.2.3-71-gd317 From 14d33d384693eb6083396199de516fdef320f7af Mon Sep 17 00:00:00 2001 From: Chandrabhanu Mahapatra Date: Mon, 27 Aug 2012 14:23:19 +0530 Subject: OMAPDSS: Correct DISPC_IRQ bit definitions for LCD3 The DISPC_IRQ bit definitions pertaining to channel LCD3 as DISPC_IRQ_VSYNC3, DISPC_IRQ_SYNC_LOST3, DISPC_IRQ_ACBIAS_COUNT_STAT3 AND DISPC_IRQ_FRAMEDONE3 which were incorrectly set in previous LCD3 patches have been corrected here. Reported-by: Mark Tyler Signed-off-by: Chandrabhanu Mahapatra Signed-off-by: Tomi Valkeinen --- include/video/omapdss.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/video/omapdss.h b/include/video/omapdss.h index b868123e6cf1..9c7cca3746e1 100644 --- a/include/video/omapdss.h +++ b/include/video/omapdss.h @@ -48,10 +48,10 @@ #define DISPC_IRQ_FRAMEDONEWB (1 << 23) #define DISPC_IRQ_FRAMEDONETV (1 << 24) #define DISPC_IRQ_WBBUFFEROVERFLOW (1 << 25) -#define DISPC_IRQ_FRAMEDONE3 (1 << 26) -#define DISPC_IRQ_VSYNC3 (1 << 27) -#define DISPC_IRQ_ACBIAS_COUNT_STAT3 (1 << 28) -#define DISPC_IRQ_SYNC_LOST3 (1 << 29) +#define DISPC_IRQ_SYNC_LOST3 (1 << 27) +#define DISPC_IRQ_VSYNC3 (1 << 28) +#define DISPC_IRQ_ACBIAS_COUNT_STAT3 (1 << 29) +#define DISPC_IRQ_FRAMEDONE3 (1 << 30) struct omap_dss_device; struct omap_overlay_manager; -- cgit v1.2.3-71-gd317 From cee58483cf56e0ba355fdd97ff5e8925329aa936 Mon Sep 17 00:00:00 2001 From: John Stultz Date: Fri, 31 Aug 2012 13:30:06 -0400 Subject: time: Move ktime_t overflow checking into timespec_valid_strict Andreas Bombe reported that the added ktime_t overflow checking added to timespec_valid in commit 4e8b14526ca7 ("time: Improve sanity checking of timekeeping inputs") was causing problems with X.org because it caused timeouts larger then KTIME_T to be invalid. Previously, these large timeouts would be clamped to KTIME_MAX and would never expire, which is valid. This patch splits the ktime_t overflow checking into a new timespec_valid_strict function, and converts the timekeeping codes internal checking to use this more strict function. Reported-and-tested-by: Andreas Bombe Cc: Zhouping Liu Cc: Ingo Molnar Cc: Prarit Bhargava Cc: Thomas Gleixner Cc: stable@vger.kernel.org Signed-off-by: John Stultz Signed-off-by: Linus Torvalds --- include/linux/time.h | 7 +++++++ kernel/time/timekeeping.c | 10 +++++----- 2 files changed, 12 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/include/linux/time.h b/include/linux/time.h index b0bbd8f0130d..b51e664c83e7 100644 --- a/include/linux/time.h +++ b/include/linux/time.h @@ -125,6 +125,13 @@ static inline bool timespec_valid(const struct timespec *ts) /* Can't have more nanoseconds then a second */ if ((unsigned long)ts->tv_nsec >= NSEC_PER_SEC) return false; + return true; +} + +static inline bool timespec_valid_strict(const struct timespec *ts) +{ + if (!timespec_valid(ts)) + return false; /* Disallow values that could overflow ktime_t */ if ((unsigned long long)ts->tv_sec >= KTIME_SEC_MAX) return false; diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c index 0c1485e42be6..34e5eac81424 100644 --- a/kernel/time/timekeeping.c +++ b/kernel/time/timekeeping.c @@ -428,7 +428,7 @@ int do_settimeofday(const struct timespec *tv) struct timespec ts_delta, xt; unsigned long flags; - if (!timespec_valid(tv)) + if (!timespec_valid_strict(tv)) return -EINVAL; write_seqlock_irqsave(&tk->lock, flags); @@ -476,7 +476,7 @@ int timekeeping_inject_offset(struct timespec *ts) /* Make sure the proposed value is valid */ tmp = timespec_add(tk_xtime(tk), *ts); - if (!timespec_valid(&tmp)) { + if (!timespec_valid_strict(&tmp)) { ret = -EINVAL; goto error; } @@ -659,7 +659,7 @@ void __init timekeeping_init(void) struct timespec now, boot, tmp; read_persistent_clock(&now); - if (!timespec_valid(&now)) { + if (!timespec_valid_strict(&now)) { pr_warn("WARNING: Persistent clock returned invalid value!\n" " Check your CMOS/BIOS settings.\n"); now.tv_sec = 0; @@ -667,7 +667,7 @@ void __init timekeeping_init(void) } read_boot_clock(&boot); - if (!timespec_valid(&boot)) { + if (!timespec_valid_strict(&boot)) { pr_warn("WARNING: Boot clock returned invalid value!\n" " Check your CMOS/BIOS settings.\n"); boot.tv_sec = 0; @@ -713,7 +713,7 @@ static struct timespec timekeeping_suspend_time; static void __timekeeping_inject_sleeptime(struct timekeeper *tk, struct timespec *delta) { - if (!timespec_valid(delta)) { + if (!timespec_valid_strict(delta)) { printk(KERN_WARNING "__timekeeping_inject_sleeptime: Invalid " "sleep delta value!\n"); return; -- cgit v1.2.3-71-gd317 From cca35017ca0dadae632ced71a11a7e0b7083af6c Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Thu, 26 Apr 2012 14:48:32 +0300 Subject: OMAPDSS: HDMI: Move GPIO handling to HDMI driver We currently manage HDMI GPIOs in the board files via platform_enable/disable calls. This won't work with device tree, and in any case the correct place to manage the GPIOs is in the HDMI driver. This patch moves the handling of the GPIOs to the HDMI driver. The GPIO handling is moved to the common hdmi.c file, and this probably needs to be revisited when adding OMAP5 HDMI support to see if the GPIO handling needs to be moved to IP specific files. Signed-off-by: Tomi Valkeinen Acked-by: Tony Lindgren --- arch/arm/mach-omap2/board-4430sdp.c | 27 +----------- arch/arm/mach-omap2/board-omap4panda.c | 27 +----------- drivers/video/omap2/dss/hdmi.c | 75 +++++++++++++++++++++++++--------- include/video/omapdss.h | 2 + 4 files changed, 61 insertions(+), 70 deletions(-) (limited to 'include') diff --git a/arch/arm/mach-omap2/board-4430sdp.c b/arch/arm/mach-omap2/board-4430sdp.c index ad8a7d94afcd..2c151c28cca1 100644 --- a/arch/arm/mach-omap2/board-4430sdp.c +++ b/arch/arm/mach-omap2/board-4430sdp.c @@ -601,29 +601,6 @@ static void __init omap_sfh7741prox_init(void) __func__, OMAP4_SFH7741_ENABLE_GPIO, error); } -static struct gpio sdp4430_hdmi_gpios[] = { - { HDMI_GPIO_CT_CP_HPD, GPIOF_OUT_INIT_HIGH, "hdmi_gpio_ct_cp_hpd" }, - { HDMI_GPIO_LS_OE, GPIOF_OUT_INIT_HIGH, "hdmi_gpio_ls_oe" }, - { HDMI_GPIO_HPD, GPIOF_DIR_IN, "hdmi_gpio_hpd" }, -}; - -static int sdp4430_panel_enable_hdmi(struct omap_dss_device *dssdev) -{ - int status; - - status = gpio_request_array(sdp4430_hdmi_gpios, - ARRAY_SIZE(sdp4430_hdmi_gpios)); - if (status) - pr_err("%s: Cannot request HDMI GPIOs\n", __func__); - - return status; -} - -static void sdp4430_panel_disable_hdmi(struct omap_dss_device *dssdev) -{ - gpio_free_array(sdp4430_hdmi_gpios, ARRAY_SIZE(sdp4430_hdmi_gpios)); -} - static struct nokia_dsi_panel_data dsi1_panel = { .name = "taal", .reset_gpio = 102, @@ -718,6 +695,8 @@ static struct omap_dss_device sdp4430_lcd2_device = { }; static struct omap_dss_hdmi_data sdp4430_hdmi_data = { + .ct_cp_hpd_gpio = HDMI_GPIO_CT_CP_HPD, + .ls_oe_gpio = HDMI_GPIO_LS_OE, .hpd_gpio = HDMI_GPIO_HPD, }; @@ -725,8 +704,6 @@ static struct omap_dss_device sdp4430_hdmi_device = { .name = "hdmi", .driver_name = "hdmi_panel", .type = OMAP_DISPLAY_TYPE_HDMI, - .platform_enable = sdp4430_panel_enable_hdmi, - .platform_disable = sdp4430_panel_disable_hdmi, .channel = OMAP_DSS_CHANNEL_DIGIT, .data = &sdp4430_hdmi_data, }; diff --git a/arch/arm/mach-omap2/board-omap4panda.c b/arch/arm/mach-omap2/board-omap4panda.c index 70f6d1d25463..cd4852e5ca57 100644 --- a/arch/arm/mach-omap2/board-omap4panda.c +++ b/arch/arm/mach-omap2/board-omap4panda.c @@ -408,30 +408,9 @@ static struct omap_dss_device omap4_panda_dvi_device = { .channel = OMAP_DSS_CHANNEL_LCD2, }; -static struct gpio panda_hdmi_gpios[] = { - { HDMI_GPIO_CT_CP_HPD, GPIOF_OUT_INIT_HIGH, "hdmi_gpio_ct_cp_hpd" }, - { HDMI_GPIO_LS_OE, GPIOF_OUT_INIT_HIGH, "hdmi_gpio_ls_oe" }, - { HDMI_GPIO_HPD, GPIOF_DIR_IN, "hdmi_gpio_hpd" }, -}; - -static int omap4_panda_panel_enable_hdmi(struct omap_dss_device *dssdev) -{ - int status; - - status = gpio_request_array(panda_hdmi_gpios, - ARRAY_SIZE(panda_hdmi_gpios)); - if (status) - pr_err("Cannot request HDMI GPIOs\n"); - - return status; -} - -static void omap4_panda_panel_disable_hdmi(struct omap_dss_device *dssdev) -{ - gpio_free_array(panda_hdmi_gpios, ARRAY_SIZE(panda_hdmi_gpios)); -} - static struct omap_dss_hdmi_data omap4_panda_hdmi_data = { + .ct_cp_hpd_gpio = HDMI_GPIO_CT_CP_HPD, + .ls_oe_gpio = HDMI_GPIO_LS_OE, .hpd_gpio = HDMI_GPIO_HPD, }; @@ -439,8 +418,6 @@ static struct omap_dss_device omap4_panda_hdmi_device = { .name = "hdmi", .driver_name = "hdmi_panel", .type = OMAP_DISPLAY_TYPE_HDMI, - .platform_enable = omap4_panda_panel_enable_hdmi, - .platform_disable = omap4_panda_panel_disable_hdmi, .channel = OMAP_DSS_CHANNEL_DIGIT, .data = &omap4_panda_hdmi_data, }; diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c index 0cdf24673d48..4fbe27191de5 100644 --- a/drivers/video/omap2/dss/hdmi.c +++ b/drivers/video/omap2/dss/hdmi.c @@ -32,6 +32,7 @@ #include #include #include +#include #include