[PATCH v4 22/22] arm64: dts: mt8192: Add pwm node

allen-kh.cheng allen-kh.cheng at mediatek.com
Mon Mar 28 23:51:16 PDT 2022


Hi Matthias,

On Mon, 2022-03-28 at 13:10 +0200, Matthias Brugger wrote:
> 
> On 18/03/2022 15:45, Allen-KH Cheng wrote:
> > Add pwm node for mt8192 SoC.
> > 
> > Signed-off-by: Allen-KH Cheng <allen-kh.cheng at mediatek.com>
> > ---
> >   arch/arm64/boot/dts/mediatek/mt8192.dtsi | 11 +++++++++++
> >   1 file changed, 11 insertions(+)
> > 
> > diff --git a/arch/arm64/boot/dts/mediatek/mt8192.dtsi
> > b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
> > index f0f0f067c023..ea98b2230f18 100644
> > --- a/arch/arm64/boot/dts/mediatek/mt8192.dtsi
> > +++ b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
> > @@ -625,6 +625,17 @@
> >   			status = "disabled";
> >   		};
> >   
> > +		pwm0: pwm at 1100e000 {
> > +			compatible = "mediatek,mt8183-disp-pwm";
> > +			reg = <0 0x1100e000 0 0x1000>;
> > +			interrupts = <GIC_SPI 171 IRQ_TYPE_LEVEL_HIGH
> > 0>;
> 
> Binding description is missing interrupt property. Remeber that the
> DT should 
> describe the HW, so we need to update the binding description.
> I just wonder what the IRQ signals, as it is not used by the driver.
> Definitely 
> a good candidate to make the commit message more sound. So please add
> it there.
> 
> Thanks!
> Matthias
> 

For interrupt property, we will send anther patch to update binding
and add some information for IRQ into commit message in next version. 

Thanks,
Allen

> > +			#pwm-cells = <2>;
> > +			clocks = <&topckgen CLK_TOP_DISP_PWM_SEL>,
> > +				 <&infracfg CLK_INFRA_DISP_PWM>;
> > +			clock-names = "main", "mm";
> > +			status = "disabled";
> > +		};
> > +
> >   		spi1: spi at 11010000 {
> >   			compatible = "mediatek,mt8192-spi",
> >   				     "mediatek,mt6765-spi";




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