Re: [Intel-gfx] [PATCH] drm/i915/hdcp: Disable the QSES check for HDCP 1.4 over MST

2021-01-15 Thread Gupta, Anshuman
> -Original Message- > From: Sean Paul > Sent: Thursday, January 14, 2021 12:04 AM > To: Daniel Vetter > Cc: Gupta, Anshuman ; David Airlie > ; intel-gfx@lists.freedesktop.org; Sean Paul > ; dri-de...@lists.freedesktop.org > Subject: Re: [Intel-gfx] [PATCH] dr

Re: [Intel-gfx] [PATCH] drm/i915/hdcp: Disable the QSES check for HDCP 1.4 over MST

2021-01-13 Thread Daniel Vetter
On Wed, Jan 13, 2021 at 7:34 PM Sean Paul wrote: > > On Wed, Jan 13, 2021 at 9:31 AM Daniel Vetter wrote: > > > > On Wed, Jan 13, 2021 at 2:39 PM Sean Paul wrote: > > > > > > On Wed, Jan 13, 2021 at 5:34 AM Anshuman Gupta > > > wrote: > > > > > > > > On 2021-01-07 at 04:08:58 +0530, Sean Paul

Re: [Intel-gfx] [PATCH] drm/i915/hdcp: Disable the QSES check for HDCP 1.4 over MST

2021-01-13 Thread Sean Paul
On Wed, Jan 13, 2021 at 9:31 AM Daniel Vetter wrote: > > On Wed, Jan 13, 2021 at 2:39 PM Sean Paul wrote: > > > > On Wed, Jan 13, 2021 at 5:34 AM Anshuman Gupta > > wrote: > > > > > > On 2021-01-07 at 04:08:58 +0530, Sean Paul wrote: > > > > From: Sean Paul > > > > > > > > The HDCP 1.4 spec do

Re: [Intel-gfx] [PATCH] drm/i915/hdcp: Disable the QSES check for HDCP 1.4 over MST

2021-01-13 Thread Daniel Vetter
On Wed, Jan 13, 2021 at 2:39 PM Sean Paul wrote: > > On Wed, Jan 13, 2021 at 5:34 AM Anshuman Gupta > wrote: > > > > On 2021-01-07 at 04:08:58 +0530, Sean Paul wrote: > > > From: Sean Paul > > > > > > The HDCP 1.4 spec does not require the QUERY_STREAM_ENCRYPTION_STATUS > > IMHO DP 1.4 vesa spe

Re: [Intel-gfx] [PATCH] drm/i915/hdcp: Disable the QSES check for HDCP 1.4 over MST

2021-01-13 Thread Sean Paul
On Wed, Jan 13, 2021 at 5:34 AM Anshuman Gupta wrote: > > On 2021-01-07 at 04:08:58 +0530, Sean Paul wrote: > > From: Sean Paul > > > > The HDCP 1.4 spec does not require the QUERY_STREAM_ENCRYPTION_STATUS > IMHO DP 1.4 vesa specs I.3.5 mark QSES as desirale for both HDCP 1.4 and HDCP > 2.2. > "

Re: [Intel-gfx] [PATCH] drm/i915/hdcp: Disable the QSES check for HDCP 1.4 over MST

2021-01-13 Thread Anshuman Gupta
On 2021-01-07 at 04:08:58 +0530, Sean Paul wrote: > From: Sean Paul > > The HDCP 1.4 spec does not require the QUERY_STREAM_ENCRYPTION_STATUS IMHO DP 1.4 vesa specs I.3.5 mark QSES as desirale for both HDCP 1.4 and HDCP 2.2. "The MST Source device may use a QUERY_STREAM_ENCRYPTION_STATUS message

Re: [Intel-gfx] [PATCH] drm/i915/hdcp: Disable the QSES check for HDCP 1.4 over MST

2021-01-12 Thread Jani Nikula
Anshuman, please review. BR, Jani. On Wed, 06 Jan 2021, Sean Paul wrote: > From: Sean Paul > > The HDCP 1.4 spec does not require the QUERY_STREAM_ENCRYPTION_STATUS > check, it was always a nice-to-have. After deploying this across various > devices, we've determined that some MST bridge chip

[Intel-gfx] [PATCH] drm/i915/hdcp: Disable the QSES check for HDCP 1.4 over MST

2021-01-06 Thread Sean Paul
From: Sean Paul The HDCP 1.4 spec does not require the QUERY_STREAM_ENCRYPTION_STATUS check, it was always a nice-to-have. After deploying this across various devices, we've determined that some MST bridge chips do not properly support this call for HDCP 1.4 (namely Synaptics and Realtek). I had