From: tarun-tarun143 <[email protected]> Validate the maximum link rate against the source-supported rates before using the maximum link limits to calculate allowed configurations.
This prevents an unsupported link rate from being accepted as a maximum link limit. Signed-off-by: tarun-tarun143 <[email protected]> --- drivers/gpu/drm/i915/display/intel_dp_link_caps.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) 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 7b6cc6055da8..0934488153bb 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_link_caps.c +++ b/drivers/gpu/drm/i915/display/intel_dp_link_caps.c @@ -710,7 +710,10 @@ static bool max_link_limits_valid(struct intel_dp_link_caps *link_caps, !is_power_of_2(max_link_limits->lane_count)) return false; - /* TODO: Validate max_link_limits->rate against the source supported rates. */ + if (intel_dp_rate_index(link_caps->dp->source_rates, + link_caps->dp->num_source_rates, + max_link_limits->rate) < 0) + return false; intel_dp_link_caps_get_forced_params(link_caps, &forced_params); allowed_configs = calc_allowed_config_filter(link_caps, link_caps->enabled_configs, base-commit: 73e3f0710014fe6d4ed98cfc02292f6121db7558 -- 2.43.0
