Re: [PATCH 2/2] drm: Add Content Protection Desired property to drm

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On Wed, Dec 03, 2014 at 11:31:47PM +0200, Ville Syrjälä wrote:
> On Wed, Dec 03, 2014 at 11:57:41AM -0800, Sean Paul wrote:
> > Add a new standard connector property to track whether content protection
> > (ex: hdcp) is desired by userspace. While there are 3 possible states for the
> > property, userspace should only change the value to desired or undesired.
> > Upon setting the value to desired, the driver is responsible for protecting
> > the link and setting the value to enabled. Disabling protection should happen
> > immediately.
> 
> Having a magic part r/w part r/o property doesn't sound very appealing
> to me. I'm thinking it would be cleaner to just have two properties for
> such things.

Yeah I think we should have a separate property which displays the current
sink key/id to indicate to userspace whether hdcp is established and to
what sink it's locked.

And we should have an upstream implementation to review, not just the doc
update, too.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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