RE: [PATCH] drm/vc4: Enable the DSI module and link before other enables.

2018-06-21 Thread Eric Anholt
Kevin Quigley writes: > Hi, > > When we talk about control bus enable and video transfer enable for > DSI, there is a mode in which control commands can be sent, > interleaved with the video. This is often done at the end-of-frame > and/or end of line. I've seen this handled in some other DSI d

RE: [PATCH] drm/vc4: Enable the DSI module and link before other enables.

2018-06-07 Thread Kevin Quigley
Hughes; Archit Taneja Subject: Re: [PATCH] drm/vc4: Enable the DSI module and link before other enables. On 04.06.2018 21:44, Eric Anholt wrote: > We want the DSI PHY to be enabled and the DSI module clocked before a > panel or bridge's prepare() function, since most DSI panel d

Re: [PATCH] drm/vc4: Enable the DSI module and link before other enables.

2018-06-06 Thread Andrzej Hajda
On 05.06.2018 20:49, Eric Anholt wrote: > Andrzej Hajda writes: > >> On 04.06.2018 21:44, Eric Anholt wrote: >>> We want the DSI PHY to be enabled and the DSI module clocked before a >>> panel or bridge's prepare() function, since most DSI panel drivers >>> with a prepare() hook are doing DCS tran

Re: [PATCH] drm/vc4: Enable the DSI module and link before other enables.

2018-06-05 Thread Eric Anholt
Andrzej Hajda writes: > On 04.06.2018 21:44, Eric Anholt wrote: >> We want the DSI PHY to be enabled and the DSI module clocked before a >> panel or bridge's prepare() function, since most DSI panel drivers >> with a prepare() hook are doing DCS transactions inside of them. >> >> Signed-off-by: E

Re: [PATCH] drm/vc4: Enable the DSI module and link before other enables.

2018-06-05 Thread Andrzej Hajda
On 04.06.2018 21:44, Eric Anholt wrote: > We want the DSI PHY to be enabled and the DSI module clocked before a > panel or bridge's prepare() function, since most DSI panel drivers > with a prepare() hook are doing DCS transactions inside of them. > > Signed-off-by: Eric Anholt > Cc: Kevin Quigley