Messages in this thread | | | From | Peter Rosin <> | Subject | [RFC PATCH 0/3] drm: atmel-hlcdc: clut support | Date | Fri, 16 Jun 2017 11:12:24 +0200 |
| |
Hi!
This series adds support for an 8-bit clut mode in the atmel-hlcdc driver.
For various reasons I have only tested it with the fbdev interface, and am therefore not really sure if it works w/o patch 2 and 3.
Also, when using it with the fbdev emulation layer, something seems to allocate the first 16 clut entries, which throws my users of ioctl(fb, FBIOPUTCMAP, ...) when index 0 in the given clut is really pixel value 16. If anyone can shed some light on that, I'd be most greatful!
Further, I suspect I might need to lock the crtc state when accessing it in patch 3/3?
Cheers, peda
Peter Rosin (3): atmel-hlcdc: add support for 8-bit color lookup table mode drm/fb-cma-helper: expose more of fb cma guts atmel-hlcdc: add clut support for legacy fbdev
drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c | 97 +++++++++++++++++++++++++ drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c | 25 ++++++- drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h | 20 +++++ drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c | 5 ++ drivers/gpu/drm/drm_fb_cma_helper.c | 55 +++++++++++--- include/drm/drm_fb_cma_helper.h | 8 +- 6 files changed, 197 insertions(+), 13 deletions(-)
-- 2.1.4
| |