| Message ID | 1460023684-19902-1-git-send-email-shubhangi.shrivastava@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index da0c3d2..8cf5db3 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -3806,7 +3806,7 @@ intel_dp_get_dpcd(struct intel_dp *intel_dp) * downstream port information. So, an early return here saves * time from performing other operations which are not required. */ - if (!intel_dp->sink_count) + if (!is_edp(intel_dp) && !intel_dp->sink_count) return false; /* Check if the panel supports PSR */
Sink count was read for eDP as well as DP. But in some cases the sink count for eDP is received as zero, as against the expected non zero value. This is seen in: commit 30d9aa4265fe4b2b28239934770b2c2d59858df3 Author: Shubhangi Shrivastava <shubhangi.shrivastava@intel.com> Date: Wed Mar 30 18:05:25 2016 +0530 drm/i915: Read sink_count dpcd always This patch fixes the issue by removing the sink count check for both DP and eDP and allows it to be checked only for DP. Fixes: 30d9aa4265fe ("drm/i915: Read sink_count dpcd always") Signed-off-by: Sivakumar Thulasimani <sivakumar.thulasimani@intel.com> Signed-off-by: Shubhangi Shrivastava <shubhangi.shrivastava@intel.com> --- drivers/gpu/drm/i915/intel_dp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)