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authorTomi Valkeinen <tomi.valkeinen@ti.com>2020-12-11 13:42:36 +0200
committerTomi Valkeinen <tomi.valkeinen@ti.com>2020-12-15 15:46:03 +0200
commit6ca2ab8086af8434a4c0990882321a345c3cc2c6 (patch)
tree75083dac887881212e05e700099dd85f2ea941f5 /drivers/gpu/drm/stm
parent5c0e4110f751934e748a66887c61f8e73805f0f9 (diff)
downloadlinux-6ca2ab8086af8434a4c0990882321a345c3cc2c6.tar.gz
drm: automatic legacy gamma support
To support legacy gamma ioctls the drivers need to set
drm_crtc_funcs.gamma_set either to a custom implementation or to
drm_atomic_helper_legacy_gamma_set. Most of the atomic drivers do the
latter.

We can simplify this by making the core handle it automatically.

Move the drm_atomic_helper_legacy_gamma_set() functionality into
drm_color_mgmt.c to make drm_mode_gamma_set_ioctl() use
drm_crtc_funcs.gamma_set if set or GAMMA_LUT property if not.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Philippe Cornu <philippe.cornu@st.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201211114237.213288-2-tomi.valkeinen@ti.com
Diffstat (limited to 'drivers/gpu/drm/stm')
-rw-r--r--drivers/gpu/drm/stm/ltdc.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/gpu/drm/stm/ltdc.c b/drivers/gpu/drm/stm/ltdc.c
index 3980677435cb..7812094f93d6 100644
--- a/drivers/gpu/drm/stm/ltdc.c
+++ b/drivers/gpu/drm/stm/ltdc.c
@@ -713,7 +713,6 @@ static const struct drm_crtc_funcs ltdc_crtc_funcs = {
 	.enable_vblank = ltdc_crtc_enable_vblank,
 	.disable_vblank = ltdc_crtc_disable_vblank,
 	.get_vblank_timestamp = drm_crtc_vblank_helper_get_vblank_timestamp,
-	.gamma_set = drm_atomic_helper_legacy_gamma_set,
 };
 
 /*