Re: [PATCH] drm/panel: panel-simple: Support panel-dpi

2019-03-11 Thread Maxime Ripard
On Fri, Mar 08, 2019 at 03:11:37PM +0100, Thierry Reding wrote: > On Fri, Mar 08, 2019 at 01:14:30PM +0200, Laurent Pinchart wrote: > > Hi Thierry, > > > > On Fri, Mar 08, 2019 at 10:44:57AM +0100, Thierry Reding wrote: > > > On Thu, Mar 07, 2019 at 11:10:30AM +0100, Maxime Ripard wrote: > > > > T

Re: [PATCH] drm/panel: panel-simple: Support panel-dpi

2019-03-08 Thread Rob Herring
On Fri, Mar 8, 2019 at 5:05 PM Eric Anholt wrote: > > Rob Herring writes: > > > On Fri, Mar 8, 2019 at 3:45 AM Thierry Reding > > wrote: > >> > >> On Thu, Mar 07, 2019 at 11:10:30AM +0100, Maxime Ripard wrote: > >> > The kernel has a device tree binding for panel-dpi which allows for the > >> >

Re: [PATCH] drm/panel: panel-simple: Support panel-dpi

2019-03-08 Thread Eric Anholt
Rob Herring writes: > On Fri, Mar 8, 2019 at 3:45 AM Thierry Reding > wrote: >> >> On Thu, Mar 07, 2019 at 11:10:30AM +0100, Maxime Ripard wrote: >> > The kernel has a device tree binding for panel-dpi which allows for the >> > panel timings to be described in the device-tree, however it wasn't

Re: [PATCH] drm/panel: panel-simple: Support panel-dpi

2019-03-08 Thread Rob Herring
On Fri, Mar 8, 2019 at 11:12 AM Sam Ravnborg wrote: > > Hi Thierry. > On Fri, Mar 08, 2019 at 02:39:24PM +0100, Thierry Reding wrote: > > On Fri, Mar 08, 2019 at 02:01:48PM +0100, Sam Ravnborg wrote: > > > > One thing that's not clear to me is whether or not we want to allow > > > > video timings

Re: [PATCH] drm/panel: panel-simple: Support panel-dpi

2019-03-08 Thread Rob Herring
On Fri, Mar 8, 2019 at 3:45 AM Thierry Reding wrote: > > On Thu, Mar 07, 2019 at 11:10:30AM +0100, Maxime Ripard wrote: > > The kernel has a device tree binding for panel-dpi which allows for the > > panel timings to be described in the device-tree, however it wasn't > > supported so far except in

Re: [PATCH] drm/panel: panel-simple: Support panel-dpi

2019-03-08 Thread Sam Ravnborg
Hi Thierry. On Fri, Mar 08, 2019 at 02:39:24PM +0100, Thierry Reding wrote: > On Fri, Mar 08, 2019 at 02:01:48PM +0100, Sam Ravnborg wrote: > > > One thing that's not clear to me is whether or not we want to allow > > > video timings to be specified in DT. I used to think that we didn't, > > > beca

Re: [PATCH] drm/panel: panel-simple: Support panel-dpi

2019-03-08 Thread Thierry Reding
On Fri, Mar 08, 2019 at 01:14:30PM +0200, Laurent Pinchart wrote: > Hi Thierry, > > On Fri, Mar 08, 2019 at 10:44:57AM +0100, Thierry Reding wrote: > > On Thu, Mar 07, 2019 at 11:10:30AM +0100, Maxime Ripard wrote: > > > The kernel has a device tree binding for panel-dpi which allows for the > > >

Re: [PATCH] drm/panel: panel-simple: Support panel-dpi

2019-03-08 Thread Thierry Reding
On Fri, Mar 08, 2019 at 02:01:48PM +0100, Sam Ravnborg wrote: > > One thing that's not clear to me is whether or not we want to allow > > video timings to be specified in DT. I used to think that we didn't, > > because the video timings are implied by the specific compatible string > > (which we al

Re: [PATCH] drm/panel: panel-simple: Support panel-dpi

2019-03-08 Thread Sam Ravnborg
> One thing that's not clear to me is whether or not we want to allow > video timings to be specified in DT. I used to think that we didn't, > because the video timings are implied by the specific compatible string > (which we already determined is mandatory anyway), We often have two users of the

Re: [PATCH] drm/panel: panel-simple: Support panel-dpi

2019-03-08 Thread Laurent Pinchart
Hi Thierry, On Fri, Mar 08, 2019 at 10:44:57AM +0100, Thierry Reding wrote: > On Thu, Mar 07, 2019 at 11:10:30AM +0100, Maxime Ripard wrote: > > The kernel has a device tree binding for panel-dpi which allows for the > > panel timings to be described in the device-tree, however it wasn't > > suppo

Re: [PATCH] drm/panel: panel-simple: Support panel-dpi

2019-03-08 Thread Thierry Reding
On Thu, Mar 07, 2019 at 11:10:30AM +0100, Maxime Ripard wrote: > The kernel has a device tree binding for panel-dpi which allows for the > panel timings to be described in the device-tree, however it wasn't > supported so far except in a (small) number of KMS drivers that had an > ad-hoc solution f

Re: [PATCH] drm/panel: panel-simple: Support panel-dpi

2019-03-07 Thread Eric Anholt
Maxime Ripard writes: > The kernel has a device tree binding for panel-dpi which allows for the > panel timings to be described in the device-tree, however it wasn't > supported so far except in a (small) number of KMS drivers that had an > ad-hoc solution for this (omapdrm for example). I'm rea