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drm/i915/dp: Factor out intel_dp_update_sink_caps()

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Factor out a function updating the sink's link rate and lane count
capabilities, used by a follow-up patch enabling the DP tunnel BW
allocation mode.

Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240220211841.448846-9-imre.deak@intel.com
This commit is contained in:
Imre Deak 2024-02-20 23:18:28 +02:00
parent 4ba732a64c
commit 85e5be6821
2 changed files with 9 additions and 3 deletions
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11
drivers/gpu/drm/i915/display/intel_dp.c
View File

@ -3944,6 +3944,13 @@ intel_dp_has_sink_count(struct intel_dp *intel_dp)
&intel_dp->desc);
}
void intel_dp_update_sink_caps(struct intel_dp *intel_dp)
{
intel_dp_set_sink_rates(intel_dp);
intel_dp_set_max_sink_lane_count(intel_dp);
intel_dp_set_common_rates(intel_dp);
}
static bool
intel_dp_get_dpcd(struct intel_dp *intel_dp)
{
@ -3960,9 +3967,7 @@ intel_dp_get_dpcd(struct intel_dp *intel_dp)
drm_dp_read_desc(&intel_dp->aux, &intel_dp->desc,
drm_dp_is_branch(intel_dp->dpcd));
intel_dp_set_sink_rates(intel_dp);
intel_dp_set_max_sink_lane_count(intel_dp);
intel_dp_set_common_rates(intel_dp);
intel_dp_update_sink_caps(intel_dp);
}
if (intel_dp_has_sink_count(intel_dp)) {

1
drivers/gpu/drm/i915/display/intel_dp.h
View File

@ -104,6 +104,7 @@ int intel_dp_config_required_rate(const struct intel_crtc_state *crtc_state);
int intel_dp_rate_select(struct intel_dp *intel_dp, int rate);
int intel_dp_max_common_rate(struct intel_dp *intel_dp);
int intel_dp_max_common_lane_count(struct intel_dp *intel_dp);
void intel_dp_update_sink_caps(struct intel_dp *intel_dp);
void intel_dp_compute_rate(struct intel_dp *intel_dp, int port_clock,
u8 *link_bw, u8 *rate_select);