Hi,
Another try.
I dropped the has_gamma_prop and has_degamma_prop variables and use drm_mode_obj_find_prop_id() instead.
I also changed the order of the patches, and added a new helper for setting the gamma ramp to the properties.
Tomi
Tomi Valkeinen (2): drm: automatic legacy gamma support drm: add legacy support for using degamma for gamma
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 1 - .../gpu/drm/arm/display/komeda/komeda_crtc.c | 1 - drivers/gpu/drm/arm/malidp_crtc.c | 1 - drivers/gpu/drm/armada/armada_crtc.c | 1 - drivers/gpu/drm/ast/ast_mode.c | 1 - .../gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c | 1 - drivers/gpu/drm/drm_atomic_helper.c | 70 -------- drivers/gpu/drm/drm_color_mgmt.c | 150 ++++++++++++++++-- drivers/gpu/drm/drm_crtc_internal.h | 10 ++ drivers/gpu/drm/drm_fb_helper.c | 28 ++-- drivers/gpu/drm/i915/display/intel_display.c | 1 - drivers/gpu/drm/ingenic/ingenic-drm-drv.c | 2 - drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 1 - drivers/gpu/drm/nouveau/dispnv50/head.c | 2 - drivers/gpu/drm/omapdrm/omap_crtc.c | 1 - drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 1 - drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 1 - drivers/gpu/drm/stm/ltdc.c | 1 - drivers/gpu/drm/vc4/vc4_crtc.c | 1 - drivers/gpu/drm/vc4/vc4_txp.c | 1 - include/drm/drm_atomic_helper.h | 4 - include/drm/drm_color_mgmt.h | 1 - 22 files changed, 160 insertions(+), 121 deletions(-)