* [PATCH v5] arm64: dts: mt8173: add mmsel clocks for 4K support
@ 2016-08-04 2:57 Bibby Hsieh
2017-01-12 4:50 ` Daniel Kurtz
0 siblings, 1 reply; 3+ messages in thread
From: Bibby Hsieh @ 2016-08-04 2:57 UTC (permalink / raw)
To: Mark Rutland, devicetree, linux-arm-kernel, linux-kernel, linux-mediatek
Cc: Rob Herring, Pawel Moll, Ian Campbell, Kumar Gala,
Catalin Marinas, Will Deacon, Matthias Brugger, Daniel Kurtz,
Yingjoe Chen, Sascha Hauer, James Liao, Lorenzo Pieralisi,
YH Huang, CK Hu, Yong Wu, Eddie Huang, dawei.chien, Chunfeng Yun,
Junzhi Zhao, Philipp Zabel, 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..c3f32f3 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>;
+ assigned-clocks = <&topckgen CLK_TOP_MM_SEL>;
+ assigned-clock-rates = <400000000>;
#clock-cells = <1>;
};
--
1.7.9.5
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH v5] arm64: dts: mt8173: add mmsel clocks for 4K support
2016-08-04 2:57 [PATCH v5] arm64: dts: mt8173: add mmsel clocks for 4K support Bibby Hsieh
@ 2017-01-12 4:50 ` Daniel Kurtz
2017-01-13 15:32 ` Matthias Brugger
0 siblings, 1 reply; 3+ messages in thread
From: Daniel Kurtz @ 2017-01-12 4:50 UTC (permalink / raw)
To: Bibby Hsieh
Cc: Mark Rutland, open list:OPEN FIRMWARE AND...,
linux-arm-kernel, linux-kernel,
moderated list:ARM/Mediatek SoC support, Rob Herring, Pawel Moll,
Ian Campbell, Kumar Gala, Catalin Marinas, Will Deacon,
Matthias Brugger, Yingjoe Chen, Sascha Hauer, James Liao,
Lorenzo Pieralisi, YH Huang, CK Hu, Yong Wu, Eddie Huang,
dawei.chien, Chunfeng Yun, Junzhi Zhao, Philipp Zabel
Hi Matthias,
(Trying again to send plain text email)...
On Thu, Aug 4, 2016 at 10:57 AM, Bibby Hsieh <bibby.hsieh@mediatek.com> wrote:
> 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>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
It looks like this patch was lost. It is actually a prerequisite for
MTK 4k HDMI support, which already landed in v4.9.
See the email thread entitled:
[PATCH v5 0/3] MT8173 HDMI 4K support <https://lkml.org/lkml/2016/9/28/893>
Or these three:
0d2200794f0a drm/mediatek: modify the factor to make the pll_rate set
in the 1G-2G range
968253bd7caa drm/mediatek: enhance the HDMI driving current
d542b7c473f0 drm/mediatek: do mtk_hdmi_send_infoframe after HDMI clock enable
-Dan
> ---
> 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..c3f32f3 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>;
> + assigned-clocks = <&topckgen CLK_TOP_MM_SEL>;
> + assigned-clock-rates = <400000000>;
> #clock-cells = <1>;
> };
>
> --
> 1.7.9.5
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH v5] arm64: dts: mt8173: add mmsel clocks for 4K support
2017-01-12 4:50 ` Daniel Kurtz
@ 2017-01-13 15:32 ` Matthias Brugger
0 siblings, 0 replies; 3+ messages in thread
From: Matthias Brugger @ 2017-01-13 15:32 UTC (permalink / raw)
To: Daniel Kurtz, Bibby Hsieh
Cc: Mark Rutland, open list:OPEN FIRMWARE AND...,
linux-arm-kernel, linux-kernel,
moderated list:ARM/Mediatek SoC support, Rob Herring, Pawel Moll,
Ian Campbell, Kumar Gala, Catalin Marinas, Will Deacon,
Yingjoe Chen, Sascha Hauer, James Liao, Lorenzo Pieralisi,
YH Huang, CK Hu, Yong Wu, Eddie Huang, dawei.chien, Chunfeng Yun,
Junzhi Zhao, Philipp Zabel
On 12/01/17 05:50, Daniel Kurtz wrote:
> Hi Matthias,
>
> (Trying again to send plain text email)...
>
> On Thu, Aug 4, 2016 at 10:57 AM, Bibby Hsieh <bibby.hsieh@mediatek.com> wrote:
>> 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>
>
> Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
>
Applied to v4.10-next/dts
Thanks
>
> It looks like this patch was lost. It is actually a prerequisite for
> MTK 4k HDMI support, which already landed in v4.9.
>
> See the email thread entitled:
> [PATCH v5 0/3] MT8173 HDMI 4K support <https://lkml.org/lkml/2016/9/28/893>
>
> Or these three:
>
> 0d2200794f0a drm/mediatek: modify the factor to make the pll_rate set
> in the 1G-2G range
> 968253bd7caa drm/mediatek: enhance the HDMI driving current
> d542b7c473f0 drm/mediatek: do mtk_hdmi_send_infoframe after HDMI clock enable
>
> -Dan
>
>> ---
>> 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..c3f32f3 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>;
>> + assigned-clocks = <&topckgen CLK_TOP_MM_SEL>;
>> + assigned-clock-rates = <400000000>;
>> #clock-cells = <1>;
>> };
>>
>> --
>> 1.7.9.5
>>
^ permalink raw reply [flat|nested] 3+ messages in thread
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2016-08-04 2:57 [PATCH v5] arm64: dts: mt8173: add mmsel clocks for 4K support Bibby Hsieh
2017-01-12 4:50 ` Daniel Kurtz
2017-01-13 15:32 ` Matthias Brugger
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