diff options
| author | Imre Deak <imre.deak@intel.com> | 2026-06-16 23:08:37 +0300 |
|---|---|---|
| committer | Imre Deak <imre.deak@intel.com> | 2026-06-24 19:44:03 +0300 |
| commit | 487beac7b8efb45beb6f09552bcb869184ed7140 (patch) | |
| tree | 179be3ce9020e14714000a839f9715958180df1a | |
| parent | 66cd2b38b5138945d3a5805695c2abec33ad2e50 (diff) | |
| download | linux-487beac7b8efb45beb6f09552bcb869184ed7140.tar.gz linux-487beac7b8efb45beb6f09552bcb869184ed7140.zip | |
drm/i915/dp_link_caps: Add helper to get common rate index
Add intel_dp_link_caps_common_rate_idx() to look up supported link rates
tracked by the link_caps module by rate. This prepares for tracking these
capabilities internally within the link caps module.
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patch.msgid.link/20260616200849.3534628-18-imre.deak@intel.com
4 files changed, 16 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_caps.c b/drivers/gpu/drm/i915/display/intel_dp_link_caps.c index 09b60a0cd6fb..84d9636f4adb 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_link_caps.c +++ b/drivers/gpu/drm/i915/display/intel_dp_link_caps.c @@ -61,6 +61,15 @@ int intel_dp_common_rate(struct intel_dp *intel_dp, int index) return intel_dp->common_rates[index]; } +int intel_dp_link_caps_common_rate_idx(struct intel_dp_link_caps *link_caps, int rate) +{ + struct intel_dp *intel_dp = link_caps->dp; + + return intel_dp_rate_index(intel_dp->common_rates, + intel_dp->num_common_rates, + rate); +} + /* Theoretical max between source and sink */ int intel_dp_max_common_rate(struct intel_dp *intel_dp) { diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_caps.h b/drivers/gpu/drm/i915/display/intel_dp_link_caps.h index 3413f6f76045..7d7d3d11ba3f 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_link_caps.h +++ b/drivers/gpu/drm/i915/display/intel_dp_link_caps.h @@ -14,6 +14,7 @@ struct intel_dp_link_config; int intel_dp_common_len_rate_limit(const struct intel_dp *intel_dp, int max_rate); int intel_dp_common_rate(struct intel_dp *intel_dp, int index); +int intel_dp_link_caps_common_rate_idx(struct intel_dp_link_caps *link_caps, int rate); int intel_dp_max_common_rate(struct intel_dp *intel_dp); int intel_dp_link_caps_num_common_rates(struct intel_dp_link_caps *link_caps); diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c b/drivers/gpu/drm/i915/display/intel_dp_link_training.c index 61ada34ab9c8..ec9bd9b4c800 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c +++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c @@ -1891,9 +1891,8 @@ static int reduce_link_rate(struct intel_dp *intel_dp, int current_rate) if (forced_params.rate) return -1; - rate_index = intel_dp_rate_index(intel_dp->common_rates, - intel_dp->num_common_rates, - current_rate); + rate_index = intel_dp_link_caps_common_rate_idx(link_caps, + current_rate); if (rate_index <= 0) return -1; diff --git a/drivers/gpu/drm/i915/display/intel_dp_test.c b/drivers/gpu/drm/i915/display/intel_dp_test.c index ba44769c9cfb..da7632536dac 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_test.c +++ b/drivers/gpu/drm/i915/display/intel_dp_test.c @@ -14,6 +14,7 @@ #include "intel_display_regs.h" #include "intel_display_types.h" #include "intel_dp.h" +#include "intel_dp_link_caps.h" #include "intel_dp_link_training.h" #include "intel_dp_mst.h" #include "intel_dp_test.h" @@ -32,6 +33,7 @@ void intel_dp_test_compute_config(struct intel_dp *intel_dp, struct intel_crtc_state *pipe_config, struct link_config_limits *limits) { + struct intel_dp_link_caps *link_caps = intel_dp->link.caps; struct intel_display *display = to_intel_display(intel_dp); /* For DP Compliance we override the computed bpp for the pipe */ @@ -54,9 +56,8 @@ void intel_dp_test_compute_config(struct intel_dp *intel_dp, */ if (intel_dp_link_params_valid(intel_dp, intel_dp->compliance.test_link_rate, intel_dp->compliance.test_lane_count)) { - index = intel_dp_rate_index(intel_dp->common_rates, - intel_dp->num_common_rates, - intel_dp->compliance.test_link_rate); + index = intel_dp_link_caps_common_rate_idx(link_caps, + intel_dp->compliance.test_link_rate); if (index >= 0) { limits->min_rate = intel_dp->compliance.test_link_rate; limits->max_rate = intel_dp->compliance.test_link_rate; |