Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 50fec21a authored by Ville Syrjälä's avatar Ville Syrjälä Committed by Daniel Vetter
Browse files

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: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: default avatarSonika Jindal <sonika.jindal@intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent 2ecae76a

drivers/gpu/drm/i915/intel_dp.c

+14 −1
Original line number Diff line number Diff line
@@ -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)

drivers/gpu/drm/i915/intel_drv.h

+1 −0
Original line number Diff line number Diff line
@@ -1062,6 +1062,7 @@ void intel_dp_add_properties(struct intel_dp *intel_dp, struct drm_connector *co 
void intel_dp_mst_suspend(struct drm_device *dev);

void intel_dp_mst_resume(struct drm_device *dev);

int intel_dp_max_link_bw(struct intel_dp *intel_dp);

int intel_dp_max_link_rate(struct intel_dp *intel_dp);

void intel_dp_hot_plug(struct intel_encoder *intel_encoder);

void vlv_power_sequencer_reset(struct drm_i915_private *dev_priv);

uint32_t intel_dp_pack_aux(const uint8_t *src, int src_bytes);