Hi! While trying to get CLUT support for the atmel_hlcdc driver, and specifically for the emulated fbdev interface, I received some push-back that my feeble in-driver attempts should be solved by the core. This is my attempt to do it right. I have obviously not tested all of this with more than a compile, but patches 1 and 3 are enough to make the atmel-hlcdc driver do what I need (when patched to support CLUT modes). The rest is just lots of removals and cleanup made possible by the improved core. Please test, I would not be surprised if I have fouled up some bit-manipulation somewhere in this mostly mechanical change... Changes since v1: - Rebased to next-20170621 - Split 1/11 into a preparatory patch, a cleanup patch and then the meat in 3/14. - Handle pseudo-palette for FB_VISUAL_TRUECOLOR. - Removed the empty .gamma_get/.gamma_set fb helpers from the armada driver that I had somehow managed to ignore but which 0day found real quick. - Be less judgemental on drivers only providing .gamma_get and .gamma_set, but no .load_lut. That's actually a valid thing to do if you only need pseudo-palette for FB_VISUAL_TRUECOLOR. - Add a comment about colliding bitfields in the nouveau driver. - Remove gamma_set/gamma_get declarations from the radeon driver (the definitions were removed in v1). Cheers, peda Peter Rosin (14): drm/fb-helper: keep the .gamma_store updated in drm_fb_helper_setcmap drm/fb-helper: remove drm_fb_helper_save_lut_atomic drm/fb-helper: do a generic fb_setcmap helper in terms of crtc .gamma_set drm: amd: remove dead code and pointless local lut storage drm: armada: remove dead empty functions drm: ast: remove dead code and pointless local lut storage drm: cirrus: remove dead code and pointless local lut storage drm: gma500: remove dead code and pointless local lut storage drm: i915: remove dead code and pointless local lut storage drm: mgag200: remove dead code and pointless local lut storage drm: nouveau: remove dead code and pointless local lut storage drm: radeon: remove dead code and pointless local lut storage drm: stm: remove dead code and pointless local lut storage drm: remove unused and redundant callbacks drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c | 24 ---- drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h | 1 - drivers/gpu/drm/amd/amdgpu/dce_v10_0.c | 27 ++--- drivers/gpu/drm/amd/amdgpu/dce_v11_0.c | 27 ++--- drivers/gpu/drm/amd/amdgpu/dce_v6_0.c | 27 ++--- drivers/gpu/drm/amd/amdgpu/dce_v8_0.c | 27 ++--- drivers/gpu/drm/amd/amdgpu/dce_virtual.c | 23 ---- drivers/gpu/drm/armada/armada_crtc.c | 10 -- drivers/gpu/drm/armada/armada_crtc.h | 2 - drivers/gpu/drm/armada/armada_fbdev.c | 2 - drivers/gpu/drm/ast/ast_drv.h | 1 - drivers/gpu/drm/ast/ast_fb.c | 20 ---- drivers/gpu/drm/ast/ast_mode.c | 26 +---- drivers/gpu/drm/cirrus/cirrus_drv.h | 8 -- drivers/gpu/drm/cirrus/cirrus_fbdev.c | 2 - drivers/gpu/drm/cirrus/cirrus_mode.c | 71 +++--------- drivers/gpu/drm/drm_fb_helper.c | 164 +++++++++++++--------------- drivers/gpu/drm/gma500/framebuffer.c | 22 ---- drivers/gpu/drm/gma500/gma_display.c | 32 ++---- drivers/gpu/drm/gma500/psb_intel_display.c | 7 +- drivers/gpu/drm/gma500/psb_intel_drv.h | 1 - drivers/gpu/drm/i915/intel_drv.h | 1 - drivers/gpu/drm/i915/intel_fbdev.c | 31 ------ drivers/gpu/drm/mgag200/mgag200_drv.h | 5 - drivers/gpu/drm/mgag200/mgag200_fb.c | 2 - drivers/gpu/drm/mgag200/mgag200_mode.c | 62 +++-------- drivers/gpu/drm/nouveau/dispnv04/crtc.c | 26 ++--- drivers/gpu/drm/nouveau/nouveau_crtc.h | 3 - drivers/gpu/drm/nouveau/nouveau_fbcon.c | 22 ---- drivers/gpu/drm/nouveau/nv50_display.c | 40 +++---- drivers/gpu/drm/radeon/atombios_crtc.c | 1 - drivers/gpu/drm/radeon/radeon_connectors.c | 7 +- drivers/gpu/drm/radeon/radeon_display.c | 71 +++++------- drivers/gpu/drm/radeon/radeon_fb.c | 2 - drivers/gpu/drm/radeon/radeon_legacy_crtc.c | 1 - drivers/gpu/drm/radeon/radeon_mode.h | 4 - drivers/gpu/drm/stm/ltdc.c | 12 -- drivers/gpu/drm/stm/ltdc.h | 1 - include/drm/drm_fb_helper.h | 32 ------ include/drm/drm_modeset_helper_vtables.h | 16 --- 40 files changed, 205 insertions(+), 658 deletions(-) -- 2.1.4