Re: DRM device memory writeback (Mali-DP)

2016-07-18 Thread Rob Clark
On Mon, Jul 18, 2016 at 11:01 AM, Daniel Vetter wrote: > On Mon, Jul 18, 2016 at 12:47:38PM +0200, Hans Verkuil wrote: >> On 07/18/2016 12:29 PM, Brian Starkey wrote: >> > OK, so let's talk about using connectors instead then :-) >> > >> > We can attach a generic fixed_mode property which can repr

Re: DRM device memory writeback (Mali-DP)

2016-07-18 Thread Daniel Vetter
On Mon, Jul 18, 2016 at 12:47:38PM +0200, Hans Verkuil wrote: > On 07/18/2016 12:29 PM, Brian Starkey wrote: > > Hi, > > > > On Fri, Jul 15, 2016 at 10:42:01AM -0700, Eric Anholt wrote: > >> Ville Syrjälä writes: > >> > >>> On Fri, Jul 15, 2016 at 10:09:19AM +0100, Brian Starkey wrote: > Hi

Re: DRM device memory writeback (Mali-DP)

2016-07-18 Thread Hans Verkuil
On 07/18/2016 12:29 PM, Brian Starkey wrote: > Hi, > > On Fri, Jul 15, 2016 at 10:42:01AM -0700, Eric Anholt wrote: >> Ville Syrjälä writes: >> >>> On Fri, Jul 15, 2016 at 10:09:19AM +0100, Brian Starkey wrote: Hi Daniel, Thanks for taking a look. (+Cc Laurent)

Re: DRM device memory writeback (Mali-DP)

2016-07-18 Thread Brian Starkey
Hi, On Fri, Jul 15, 2016 at 10:42:01AM -0700, Eric Anholt wrote: Ville Syrjälä writes: On Fri, Jul 15, 2016 at 10:09:19AM +0100, Brian Starkey wrote: Hi Daniel, Thanks for taking a look. (+Cc Laurent) On Fri, Jul 15, 2016 at 09:33:34AM +0200, Daniel Vetter wrote: >On Thu, Jul 14, 2016 at

Re: DRM device memory writeback (Mali-DP)

2016-07-15 Thread Eric Anholt
Ville Syrjälä writes: > On Fri, Jul 15, 2016 at 10:09:19AM +0100, Brian Starkey wrote: >> Hi Daniel, >> >> Thanks for taking a look. >> >> (+Cc Laurent) >> >> On Fri, Jul 15, 2016 at 09:33:34AM +0200, Daniel Vetter wrote: >> >On Thu, Jul 14, 2016 at 06:03:40PM +0100, Brian Starkey wrote: >> >>

Re: DRM device memory writeback (Mali-DP)

2016-07-15 Thread Ville Syrjälä
On Fri, Jul 15, 2016 at 10:09:19AM +0100, Brian Starkey wrote: > Hi Daniel, > > Thanks for taking a look. > > (+Cc Laurent) > > On Fri, Jul 15, 2016 at 09:33:34AM +0200, Daniel Vetter wrote: > >On Thu, Jul 14, 2016 at 06:03:40PM +0100, Brian Starkey wrote: > >> Hi, > >> > >> The Mali-DP display

Re: DRM device memory writeback (Mali-DP)

2016-07-15 Thread Brian Starkey
Hi Daniel, Thanks for taking a look. (+Cc Laurent) On Fri, Jul 15, 2016 at 09:33:34AM +0200, Daniel Vetter wrote: On Thu, Jul 14, 2016 at 06:03:40PM +0100, Brian Starkey wrote: Hi, The Mali-DP display processors have a memory-writeback engine which can write the result of the composition (CR

Re: DRM device memory writeback (Mali-DP)

2016-07-15 Thread Daniel Vetter
On Thu, Jul 14, 2016 at 06:03:40PM +0100, Brian Starkey wrote: > Hi, > > The Mali-DP display processors have a memory-writeback engine which > can write the result of the composition (CRTC output) to a memory > buffer in a variety of formats. > > We're looking for feedback/suggestions on how to e

DRM device memory writeback (Mali-DP)

2016-07-14 Thread Brian Starkey
Hi, The Mali-DP display processors have a memory-writeback engine which can write the result of the composition (CRTC output) to a memory buffer in a variety of formats. We're looking for feedback/suggestions on how to expose this in the mali-dp DRM kernel driver - possibly via V4L2. We've got