Re: [PATCH] drm: rcar-du: add modifiers support

2019-05-17 Thread Esaki Tomohito
Hello Laurent-san, On 2019/05/12 3:10, Laurent Pinchart wrote: > Hello Esaki-san, > > On Thu, May 09, 2019 at 06:25:19PM +0900, Esaki Tomohito wrote: >> Hi Laurent-san >> >>> What's the purpose of this, as it adds no new functionality to the >>> driver ? Why is this change needed ? >> >> Weston c

Re: [PATCH] drm: rcar-du: add modifiers support

2019-05-11 Thread Laurent Pinchart
Hello Esaki-san, On Thu, May 09, 2019 at 06:25:19PM +0900, Esaki Tomohito wrote: > Hi Laurent-san > > > What's the purpose of this, as it adds no new functionality to the > > driver ? Why is this change needed ? > > Weston compositor (v5.0.0 or later) uses the DRM API to get the > supported modi

Re: [PATCH] drm: rcar-du: add modifiers support

2019-05-09 Thread Esaki Tomohito
Hi Laurent-san > What's the purpose of this, as it adds no new functionality to the > driver ? Why is this change needed ? Weston compositor (v5.0.0 or later) uses the DRM API to get the supported modifiers and determines if the sprite plane can be used by comparing the modifiers with the client

Re: [PATCH] drm: rcar-du: add modifiers support

2019-05-09 Thread Laurent Pinchart
Hi Tomohito-san, On Thu, May 09, 2019 at 02:45:18PM +0900, Tomohito Esaki wrote: > Add support for the linear modifier. Since the rcar-du device supports > only linear modifier, this driver doesn't support other modifiers. What's the purpose of this, as it adds no new functionality to the driver