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This prepares for tracking these capabilities internally within the link caps module. Signed-off-by: Imre Deak --- .../gpu/drm/i915/display/intel_dp_link_caps.c | 25 +++++++++++++++++++ .../gpu/drm/i915/display/intel_dp_link_caps.h | 1 + .../drm/i915/display/intel_dp_link_training.c | 5 ++-- drivers/gpu/drm/i915/display/intel_dp_test.c | 7 +++--- 4 files changed, 32 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 b1b78e7cda897..c99fc7704b3e8 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_link_caps.c +++ b/drivers/gpu/drm/i915/display/intel_dp_link_caps.c @@ -60,6 +60,31 @@ int intel_dp_common_rate(struct intel_dp *intel_dp, int index) return intel_dp->common_rates[index]; } +/** + * intel_dp_link_caps_common_rate_idx - get index of a common link rate + * @link_caps: link capabilities state + * @rate: common link rate to look up + * + * Look up @rate in the rate list currently supported by @link_caps, common to + * both the source and the sink. + * + * The returned value is an index into the common rate list returned by + * intel_dp_link_caps_all_common_rates() and accepted by + * intel_dp_link_caps_common_rate(). + * + * Return: + * - Index of @rate in the current common rate list. + * - %-1 if @rate is not present. + */ +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 b2eb61272652e..7ec1612a044ed 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); void intel_dp_link_caps_all_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 5218220b82b0b..456540925db55 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c +++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c @@ -1805,9 +1805,8 @@ 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 5cfa1dd411dab..0b791eee3b910 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; -- 2.49.1