diff options
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_dp.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 6ef2a0043cda..5c3e816b0135 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -4678,10 +4678,17 @@ intel_edp_set_sink_rates(struct intel_dp *intel_dp) if (intel_dp->edp_dpcd[0] >= DP_EDP_14) { __le16 sink_rates[DP_MAX_SUPPORTED_RATES]; + int ret; int i; - drm_dp_dpcd_read(&intel_dp->aux, DP_SUPPORTED_LINK_RATES, - sink_rates, sizeof(sink_rates)); + ret = drm_dp_dpcd_read_data(&intel_dp->aux, + DP_SUPPORTED_LINK_RATES, + sink_rates, sizeof(sink_rates)); + if (ret < 0) { + drm_dbg_kms(display->drm, + "Unable to read eDP supported link rates, using default rates\n"); + memset(sink_rates, 0, sizeof(sink_rates)); + } for (i = 0; i < ARRAY_SIZE(sink_rates); i++) { int rate; |