cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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lcd_osk.c (1677B)

      1// SPDX-License-Identifier: GPL-2.0-or-later
      2/*
      3 * LCD panel support for the TI OMAP OSK board
      4 *
      5 * Copyright (C) 2004 Nokia Corporation
      6 * Author: Imre Deak <imre.deak@nokia.com>
      7 * Adapted for OSK by <dirk.behme@de.bosch.com>
      8 */
      9
     10#include <linux/module.h>
     11#include <linux/platform_device.h>
     12#include <linux/gpio.h>
     13
     14#include <linux/soc/ti/omap1-io.h>
     15#include <linux/soc/ti/omap1-mux.h>
     16
     17#include "omapfb.h"
     18
     19static int osk_panel_enable(struct lcd_panel *panel)
     20{
     21	/* configure PWL pin */
     22	omap_cfg_reg(PWL);
     23
     24	/* Enable PWL unit */
     25	omap_writeb(0x01, OMAP_PWL_CLK_ENABLE);
     26
     27	/* Set PWL level */
     28	omap_writeb(0xFF, OMAP_PWL_ENABLE);
     29
     30	/* set GPIO2 high (lcd power enabled) */
     31	gpio_set_value(2, 1);
     32
     33	return 0;
     34}
     35
     36static void osk_panel_disable(struct lcd_panel *panel)
     37{
     38	/* Set PWL level to zero */
     39	omap_writeb(0x00, OMAP_PWL_ENABLE);
     40
     41	/* Disable PWL unit */
     42	omap_writeb(0x00, OMAP_PWL_CLK_ENABLE);
     43
     44	/* set GPIO2 low */
     45	gpio_set_value(2, 0);
     46}
     47
     48static struct lcd_panel osk_panel = {
     49	.name		= "osk",
     50	.config		= OMAP_LCDC_PANEL_TFT,
     51
     52	.bpp		= 16,
     53	.data_lines	= 16,
     54	.x_res		= 240,
     55	.y_res		= 320,
     56	.pixel_clock	= 12500,
     57	.hsw		= 40,
     58	.hfp		= 40,
     59	.hbp		= 72,
     60	.vsw		= 1,
     61	.vfp		= 1,
     62	.vbp		= 0,
     63	.pcd		= 12,
     64
     65	.enable		= osk_panel_enable,
     66	.disable	= osk_panel_disable,
     67};
     68
     69static int osk_panel_probe(struct platform_device *pdev)
     70{
     71	omapfb_register_panel(&osk_panel);
     72	return 0;
     73}
     74
     75static struct platform_driver osk_panel_driver = {
     76	.probe		= osk_panel_probe,
     77	.driver		= {
     78		.name	= "lcd_osk",
     79	},
     80};
     81
     82module_platform_driver(osk_panel_driver);
     83
     84MODULE_AUTHOR("Imre Deak");
     85MODULE_DESCRIPTION("LCD panel support for the TI OMAP OSK board");
     86MODULE_LICENSE("GPL");