On Thu, Jun 22, 2017 at 08:06:23AM +0200, Peter Rosin wrote: > 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). Ok some nits/questions on the first three, but in principle looks all ok I think. The driver patches also look good (but I didn't yet carefully review all the conversion). What we might want to do is entirely remove driver's reliance on ->gamma_store (mostly amounts to in-lining the load_lut functions) and only update ->gamma_store after gamma_set returned successfully. But that's a bit more work. Save/restoring it instead might be simpler to fix that bug, but since it's pre-existing also ok as follow-up. Cheers, Daniel > > 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 > > _______________________________________________ > dri-devel mailing list > dri-devel at lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/dri-devel -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch
