[PATCH v5 1/6] arm64: dts: mt8195: add display node for vdosys0

[Jason-JH Lin]

Hi CK,

On Sun, 2021-08-01 at 08:36 +0800, Chun-Kuang Hu wrote:
> Hi, Jason:
> 
> jason-jh.lin <jason-jh.lin at mediatek.com> 於 2021年7月30日 週五 上午1:07寫道：
> > 
> > Add display node for vdosys0.
> > 
> > Signed-off-by: jason-jh.lin <jason-jh.lin at mediatek.com>
> > ---
> > This patch is based on [1][2][3][4]
> > 
> > [1]arm64: dts: Add Mediatek SoC MT8195 and evaluation board dts and
> > Makefile
> > - 
> > https://urldefense.com/v3/__https://patchwork.kernel.org/project/linux-mediatek/patch/20210601075350.31515-2-seiya.wang@mediatek.com/__;!!CTRNKA9wMg0ARbw!3bjfjGf2GYJ5FQ5EWsjG9yPGwf6uVMv8dDyXLY2Tlq_sTczeIJkEDTWVt1dxp4b7tojj$
> >  
> > [2]arm64: dts: mt8195: add IOMMU and smi nodes
> > - 
> > https://urldefense.com/v3/__https://patchwork.kernel.org/project/linux-mediatek/patch/20210615173233.26682-15-tinghan.shen@mediatek.com/__;!!CTRNKA9wMg0ARbw!3bjfjGf2GYJ5FQ5EWsjG9yPGwf6uVMv8dDyXLY2Tlq_sTczeIJkEDTWVt1dxp0sfXPc-$
> >  
> > [3]arm64: dts: mt8195: add gce node
> > - 
> > https://urldefense.com/v3/__https://patchwork.kernel.org/project/linux-mediatek/patch/20210705053429.4380-4-jason-jh.lin@mediatek.com/__;!!CTRNKA9wMg0ARbw!3bjfjGf2GYJ5FQ5EWsjG9yPGwf6uVMv8dDyXLY2Tlq_sTczeIJkEDTWVt1dxp5uw6cqB$
> >  
> > [4]add mt8195 SoC DRM binding
> > - 
> > https://urldefense.com/v3/__https://patchwork.kernel.org/project/linux-mediatek/list/?series=519597__;!!CTRNKA9wMg0ARbw!3bjfjGf2GYJ5FQ5EWsjG9yPGwf6uVMv8dDyXLY2Tlq_sTczeIJkEDTWVt1dxp0qn1imR$
> >  
> > ---
> >  arch/arm64/boot/dts/mediatek/mt8195.dtsi | 112
> > +++++++++++++++++++++++
> >  1 file changed, 112 insertions(+)
> > 
> > diff --git a/arch/arm64/boot/dts/mediatek/mt8195.dtsi
> > b/arch/arm64/boot/dts/mediatek/mt8195.dtsi
> > index 04d3e95175fa..4fa47cb2bede 100644
> > --- a/arch/arm64/boot/dts/mediatek/mt8195.dtsi
> > +++ b/arch/arm64/boot/dts/mediatek/mt8195.dtsi
> > @@ -1155,9 +1155,121 @@
> >                         #clock-cells = <1>;
> >                 };
> > 
> 
> [snip]
> 
> > +
> > +               merge0: disp_vpp_merge0 at 1c014000 {
> > +                       compatible = "mediatek,mt8195-disp-merge";
> > +                       reg = <0 0x1c014000 0 0x1000>;
> > +                       interrupts = <GIC_SPI 656
> > IRQ_TYPE_LEVEL_HIGH 0>;
> > +                       power-domains = <&spm
> > MT8195_POWER_DOMAIN_VDOSYS0>;
> > +                       clocks = <&vdosys0 CLK_VDO0_VPP_MERGE0>;
> 
> Why this merge has no async clock?
> 
> Regards,
> Chun-Kuang.
> 
Only the MERGE linked to the display function block that is cross
vdosys0 to vdosys1 need to add async clock.

I'll add this description into this patch [1]
[1] 
https://patchwork.kernel.org/project/linux-mediatek/patch/20210729154912.20051-4-jason-jh.lin@mediatek.com/

Regards,
Jason-JH.Lin

> > +                       mediatek,gce-client-reg =
> > +                                <&gce1 SUBSYS_1c01XXXX 0x4000
> > 0x1000>;
> > +               };
> > +
-- 
Jason-JH Lin <jason-jh.lin at mediatek.com>