Re: [PATCH] drm/i915/hdcp: Avoid duplicate HDCP enables

2020-05-21 Thread Sean Paul
On Thu, May 21, 2020 at 5:36 AM Anshuman Gupta wrote: > > On 2020-05-21 at 10:27:21 +0530, Ramalingam C wrote: > > On 2020-05-20 at 15:47:44 -0400, Sean Paul wrote: > > > From: Sean Paul > > > > > > If userspace sets the CP property to DESIRED while it's already ENABLED, > > > the driver will try

Re: [PATCH] drm/i915/hdcp: Avoid duplicate HDCP enables

2020-05-21 Thread Anshuman Gupta
On 2020-05-21 at 10:27:21 +0530, Ramalingam C wrote: > On 2020-05-20 at 15:47:44 -0400, Sean Paul wrote: > > From: Sean Paul > > > > If userspace sets the CP property to DESIRED while it's already ENABLED, > > the driver will try to re-enable HDCP. On some displays, this will > > result in R0' mi

Re: [PATCH] drm/i915/hdcp: Avoid duplicate HDCP enables

2020-05-20 Thread Ramalingam C
On 2020-05-20 at 15:47:44 -0400, Sean Paul wrote: > From: Sean Paul > > If userspace sets the CP property to DESIRED while it's already ENABLED, > the driver will try to re-enable HDCP. On some displays, this will > result in R0' mismatches. I'm guessing this is because the display is > still sen