Re: [PATCH v3 2/3] drm/rockchip: dw_hdmi: introduce the VPLL clock setting

From: Rob Herring
Date: Wed Jun 14 2017 - 11:35:29 EST


On Fri, Jun 09, 2017 at 03:10:41PM +0800, Mark Yao wrote:
> For RK3399 HDMI, there is an external clock need for HDMI PHY,
> and it should keep the same clock rate with VOP DCLK.
>
> VPLL have supported the clock for HDMI PHY, but there is no
> clock divider bewteen VPLL and HDMI PHY. So we need to set the
> VPLL rate manually in HDMI driver.
>
> Signed-off-by: Yakir Yang <ykk@xxxxxxxxxxxxxx>
> Signed-off-by: Mark Yao <mark.yao@xxxxxxxxxxxxxx>
> ---
> Changes in v3: none
> Changes in v2: describe vpll on Documentation.
>
> .../bindings/display/rockchip/dw_hdmi-rockchip.txt | 2 +-

Acked-by: Rob Herring <robh@xxxxxxxxxx>

> drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c | 25 +++++++++++++++++++++-
> 2 files changed, 25 insertions(+), 2 deletions(-)