diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2019-07-10 15:58:51 +0300 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2019-07-11 22:53:21 +0300 |
| commit | ddb3d12afa92beb67027e84bbc994b0868446022 (patch) | |
| tree | 451661be12e0d2a8204fadfe56752ba142c0d960 /drivers | |
| parent | 86c9640b3a1ede3215fe8fc1848abb54a36aeac8 (diff) | |
drm/i915: Don't overestimate 4:2:0 link symbol clock
With 4:2:0 output the LS clock can be half of what it is with 4:4:4.
Make that happen.
Cc: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190710125851.3275-1-ville.syrjala@linux.intel.com
Reviewed-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Tested-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index a9db16de2999..24592d985bcb 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -1854,8 +1854,10 @@ intel_dp_compute_link_config_wide(struct intel_dp *intel_dp, int mode_rate, link_clock, link_avail; for (bpp = limits->max_bpp; bpp >= limits->min_bpp; bpp -= 2 * 3) { + int output_bpp = intel_dp_output_bpp(pipe_config, bpp); + mode_rate = intel_dp_link_required(adjusted_mode->crtc_clock, - bpp); + output_bpp); for (clock = limits->min_clock; clock <= limits->max_clock; clock++) { for (lane_count = limits->min_lane_count; |