Re: [PATCH 0/7] drm/sun4i: Introduce A33 display driver

[Chen-Yu Tsai]

On Sat, Sep 3, 2016 at 3:06 AM, Maxime Ripard
<maxime.ripard@xxxxxxxxxxxxxxxxxx> wrote:
> Hi Icenowy,
>
> On Fri, Sep 02, 2016 at 09:30:05AM +0800, Icenowy Zheng wrote:
>>
>>
>> 01.09.2016, 23:40, "Maxime Ripard" <maxime.ripard@xxxxxxxxxxxxxxxxxx>:
>> > Hi everyone,
>> >
>> > This serie introduces the support in the sun4i-drm driver for the A33.
>> >
>> > Beside the new IPs and special cases for the A33 new IPs, there's
>> > nothing really outstanding, and is now at feature parity with the A13.
>>
>> How can the driver be modified to support LVDS screen?
>>
>> I have an A33 tablet with a 1024x768 LVDS panel. (iNet D978 Rev2 board,
>> which I pushed a dt a few days ago)
>
> Awesome, I don't have such a screen myself, so feel free to work on
> it.
>
> I haven't looked into the details of LVDS, but it should be something
> along the lines of commit 29e57fab97fc ("drm: sun4i: Add RGB output").

The implementation might be along the lines of

  1. having multiple output ports, each for a different interface type.
     (Some platforms go this route)

Or

  2. having a DT property describe what the output interface is.

The RGB/TCON driver would then setup the registers accordingly.


ChenYu