From 9b13a3fcd35fc24045d2fd0f0e13ddd8d7985b4b Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Thu, 17 Mar 2022 09:18:26 +0100 Subject: drm/format-helper: Rename drm_fb_xrgb8888_to_mono_reversed() There is no "reversed" handling in drm_fb_xrgb8888_to_mono_reversed(): the function just converts from color to grayscale, and reduces the number of grayscale levels from 256 to 2 (i.e. brightness 0-127 is mapped to 0, 128-255 to 1). All "reversed" handling is done in the repaper driver, where this function originated. Hence make this clear by renaming drm_fb_xrgb8888_to_mono_reversed() to drm_fb_xrgb8888_to_mono(), and documenting the black/white pixel mapping. Fixes: bcf8b616deb87941 ("drm/format-helper: Add drm_fb_xrgb8888_to_mono_reversed()") Signed-off-by: Geert Uytterhoeven Acked-by: Javier Martinez Canillas Reviewed-by: Andy Shevchenko Signed-off-by: Javier Martinez Canillas Link: https://patchwork.freedesktop.org/patch/msgid/20220317081830.1211400-2-geert@linux-m68k.org --- include/drm/drm_format_helper.h | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/drm/drm_format_helper.h b/include/drm/drm_format_helper.h index 0b0937c0b2f6..55145eca0782 100644 --- a/include/drm/drm_format_helper.h +++ b/include/drm/drm_format_helper.h @@ -43,8 +43,7 @@ int drm_fb_blit_toio(void __iomem *dst, unsigned int dst_pitch, uint32_t dst_for const void *vmap, const struct drm_framebuffer *fb, const struct drm_rect *rect); -void drm_fb_xrgb8888_to_mono_reversed(void *dst, unsigned int dst_pitch, const void *src, - const struct drm_framebuffer *fb, - const struct drm_rect *clip); +void drm_fb_xrgb8888_to_mono(void *dst, unsigned int dst_pitch, const void *src, + const struct drm_framebuffer *fb, const struct drm_rect *clip); #endif /* __LINUX_DRM_FORMAT_HELPER_H */ -- cgit v1.2.3-71-gd317