diff options
| author | Ville Syrjälä <[email protected]> | 2016-05-11 22:44:46 +0300 |
|---|---|---|
| committer | Ville Syrjälä <[email protected]> | 2016-05-13 21:31:17 +0300 |
| commit | 760e1477260a1c83503f93c1fa3e94df81ba474d (patch) | |
| tree | ac514722d82019107aab2e364b56528baa9226d7 | |
| parent | 92891e45c313e22095c90eb36b283a3b39e90bd4 (diff) | |
drm/i915: Remove 10% cdclk guardband on BXT
We don't need any pixel clock vs. cdclk guardband since HSW. BXT still
tries to add one though. Get rid of it.
Signed-off-by: Ville Syrjälä <[email protected]>
Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
Reviewed-by: Imre Deak <[email protected]>
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index d837bc4a7e39..fcfd68b2590b 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -5901,16 +5901,15 @@ static int broxton_calc_cdclk(int max_pixclk) { /* * FIXME: - * - remove the guardband, it's not needed on BXT * - set 19.2MHz bypass frequency if there are no active pipes */ - if (max_pixclk > 576000*9/10) + if (max_pixclk > 576000) return 624000; - else if (max_pixclk > 384000*9/10) + else if (max_pixclk > 384000) return 576000; - else if (max_pixclk > 288000*9/10) + else if (max_pixclk > 288000) return 384000; - else if (max_pixclk > 144000*9/10) + else if (max_pixclk > 144000) return 288000; else return 144000; |