[RFC PATCH 07/11] drm: sun4i: add support for the TV encoder in H3 SoC

Icenowy Zheng
2017-05-19T18:08:18Z

? 2017?5?20? GMT+08:00 ??2:03:30, Maxime Ripard <maxime.ripard@free-electrons.com> ??:
>On Thu, May 18, 2017 at 12:43:50AM +0800, Icenowy Zheng wrote:
>> Allwinner H3 features a TV encoder similar to the one in earlier
>SoCs,
>> but with some different points about clocks:
>> - It has a mod clock and a bus clock.
>> - The mod clock must be at a fixed rate to generate signal.
>
>Why?

It's experiment result by Jernej.

The clock rates in BSP kernel is also specially designed
(PLL_DE at 432MHz) in order to be able to feed the TVE.

>
>Maxime