diff options
| author | Ville Syrjälä | 2015-03-12 16:10:34 +0100 |
|---|---|---|
| committer | Daniel Vetter | 2015-03-20 11:48:07 +0100 |
| commit | 50fec21a7db84a5c40e27c83bd55a5c9b435efbf (patch) | |
| tree | e900b8ccb691355181fc24511e48d3a9aeeb9a50 /drivers/gpu/drm/i915/intel_dp.c | |
| parent | drm/i915: Hide the source vs. sink rate handling from intel_dp_compute_config() (diff) | |
| download | kernel-qcow2-linux-50fec21a7db84a5c40e27c83bd55a5c9b435efbf.tar.gz kernel-qcow2-linux-50fec21a7db84a5c40e27c83bd55a5c9b435efbf.tar.xz kernel-qcow2-linux-50fec21a7db84a5c40e27c83bd55a5c9b435efbf.zip | |
drm/i915: Fix max link rate in intel_dp_mode_valid()
Consider the link rates reported by the sink via
DP_SUPPORTED_LINK_RATES when checking modes against the max link
rate.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Sonika Jindal <sonika.jindal@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dp.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 45c35681eb48..5d8ec3a33502 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -206,7 +206,7 @@ intel_dp_mode_valid(struct drm_connector *connector, target_clock = fixed_mode->clock; } - max_link_clock = drm_dp_bw_code_to_link_rate(intel_dp_max_link_bw(intel_dp)); + max_link_clock = intel_dp_max_link_rate(intel_dp); max_lanes = intel_dp_max_lane_count(intel_dp); max_rate = intel_dp_max_data_rate(max_link_clock, max_lanes); @@ -1242,6 +1242,19 @@ static int rate_to_index(int find, const int *rates) return i; } +int +intel_dp_max_link_rate(struct intel_dp *intel_dp) +{ + int rates[DP_MAX_SUPPORTED_RATES] = {}; + int len; + + len = intel_supported_rates(intel_dp, rates); + if (WARN_ON(len <= 0)) + return 162000; + + return rates[rate_to_index(0, rates) - 1]; +} + bool intel_dp_compute_config(struct intel_encoder *encoder, struct intel_crtc_state *pipe_config) |