| Message ID | 20240703155937.1674856-3-imre.deak@intel.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | drm/i915/dp: Fix LTTPR detection | expand |
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 08a27fe077917..df9b35491fc44 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c +++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c @@ -174,7 +174,7 @@ static int intel_dp_init_lttpr_phys(struct intel_dp *intel_dp, const u8 dpcd[DP_ * still taking into account any LTTPR common lane- rate/count limits. */ if (lttpr_count < 0) - return 0; + goto out_reset_lttpr_count; if (!intel_dp_set_lttpr_transparent_mode(intel_dp, false)) { lt_dbg(intel_dp, DP_PHY_DPRX,
After detection the cached LTTPR count can be checked to determine if LTTPRs in non-transparent mode were detected. Reset the cached LTTPR count if the reported number of LTTPRs is invalid to ensure the above checks work as expected. Signed-off-by: Imre Deak <imre.deak@intel.com> --- drivers/gpu/drm/i915/display/intel_dp_link_training.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)