* [PATCH v4] arm64: dts: mt8173: add mmsel clocks for 4K support
@ 2016-07-29 9:09 Bibby Hsieh
2016-07-29 9:53 ` Philipp Zabel
0 siblings, 1 reply; 3+ messages in thread
From: Bibby Hsieh @ 2016-07-29 9:09 UTC (permalink / raw)
To: linux-arm-kernel
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@mediatek.com>
---
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>;
#clock-cells = <1>;
};
--
1.7.9.5
^ permalink raw reply related [flat|nested] 3+ messages in thread
* [PATCH v4] arm64: dts: mt8173: add mmsel clocks for 4K support
2016-07-29 9:09 [PATCH v4] arm64: dts: mt8173: add mmsel clocks for 4K support Bibby Hsieh
@ 2016-07-29 9:53 ` Philipp Zabel
2016-08-03 1:46 ` Bibby Hsieh
0 siblings, 1 reply; 3+ messages in thread
From: Philipp Zabel @ 2016-07-29 9:53 UTC (permalink / raw)
To: linux-arm-kernel
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@mediatek.com>
> ---
> 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.
best regards
Philipp
^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH v4] arm64: dts: mt8173: add mmsel clocks for 4K support
2016-07-29 9:53 ` Philipp Zabel
@ 2016-08-03 1:46 ` Bibby Hsieh
0 siblings, 0 replies; 3+ messages in thread
From: Bibby Hsieh @ 2016-08-03 1:46 UTC (permalink / raw)
To: linux-arm-kernel
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@mediatek.com>
> > ---
> > 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
>
^ permalink raw reply [flat|nested] 3+ messages in thread
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2016-07-29 9:09 [PATCH v4] arm64: dts: mt8173: add mmsel clocks for 4K support Bibby Hsieh
2016-07-29 9:53 ` Philipp Zabel
2016-08-03 1:46 ` Bibby Hsieh
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