Re: [PATCH v4] arm64: dts: mt8173: add mmsel clocks for 4K support

From: Bibby Hsieh
Date: Tue Aug 02 2016 - 21:47:12 EST


Hi, Philipp,

On Fri, 2016-07-29 at 11:53 +0200, Philipp Zabel wrote:
> Hi Bibby,
>
> Am Freitag, den 29.07.2016, 17:09 +0800 schrieb Bibby Hsieh:
> > To support HDMI 4K resolution, mmsys need clcok
> > mm_sel to be 400MHz.
> >
> > The board .dts file should override the clock rate
> > property with the higher VENCPLL frequency the board
> > supports HDMI 4K resolution.
> >
> > Signed-off-by: Bibby Hsieh <bibby.hsieh@xxxxxxxxxxxx>
> > ---
> > arch/arm64/boot/dts/mediatek/mt8173.dtsi | 2 ++
> > 1 file changed, 2 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/mediatek/mt8173.dtsi b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> > index 78529e4..93d4d17 100644
> > --- a/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> > +++ b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> > @@ -690,6 +690,8 @@
> > compatible = "mediatek,mt8173-mmsys", "syscon";
> > reg = <0 0x14000000 0 0x1000>;
> > power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
> > + clocks = <&topckgen CLK_TOP_MM_SEL>;
> > + clock-frequency = <400000000>;
>
> This is unchanged compared to v3, I suggest to use assigned-clocks /
> assigned-clock-rates properties instead.
>
Ok, I will change that, thanks for your review.

--
Bibby
> best regards
> Philipp
>