[PATCH 0/4] drm/sun4i: rgb and dotclock misc fixes and improvements

Chen-Yu Tsai wens at csie.org
Thu Sep 15 08:13:58 PDT 2016

Hi Maxime,

Here are a few small fixes and improvements to the sun4i drm driver.

Patch 1 declares the LCD panel RGB interface encoder and connector types
as MIPI DPI. AFAIK DPI is the parallel RGB variant.

Patch 2 fixes the weird clock rates I was getting on the dot clock when
testing the RGB-to-VGA bridge patches. You may want to queue this as a
fix for 4.8.

Patch 3 increases the dot clock divider upper bound by 1 to 127. AFAIK
127 is a valid divider. I doubt we will ever use it, since the parents
will go way higher than they are supposed to, but getting it right is

Patch 4 changes the dot clock's behavior to make it round to the closest
clock rate. I think this would make it easier to match the LCD panel's
timings. More on the LCD timings in a later patch set.


Chen-Yu Tsai (4):
  drm/sun4i: rgb: Declare RGB encoder and connector as MIPI DPI
  drm/sun4i: dotclock: Fix clock rate read back calcation
  drm/sun4i: dotclock: Allow divider = 127
  drm/sun4i: dotclock: Round to closest clock rate

 drivers/gpu/drm/sun4i/sun4i_dotclock.c | 7 ++++---
 drivers/gpu/drm/sun4i/sun4i_rgb.c      | 4 ++--
 2 files changed, 6 insertions(+), 5 deletions(-)


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