linux-kernel - Re: [PATCH] arm64: dts: qcom: c630: Make i2c devices active high

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Date:   Wed, 6 May 2020 22:40:33 -0700
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Andy Gross <agross@...nel.org>, Rob Herring <robh+dt@...nel.org>
Cc:     linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64: dts: qcom: c630: Make i2c devices active high

On Sun 05 Apr 22:24 PDT 2020, Bjorn Andersson wrote:

> The two i2c hid devices on i2c3 are supposed to have interrupts
> triggered active high, update this.
> 

While this is what the DSDT says, keeping it as RISING avoids occasional
drops of keyboard entries. So let's ignore this for now.

> Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
> ---
>  arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts b/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
> index be6635068dc3..d4cdde496b74 100644
> --- a/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
> +++ b/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
> @@ -338,7 +338,7 @@ hid@15 {
>  		reg = <0x15>;
>  		hid-descr-addr = <0x1>;
>  
> -		interrupts-extended = <&tlmm 37 IRQ_TYPE_EDGE_RISING>;
> +		interrupts-extended = <&tlmm 37 IRQ_TYPE_LEVEL_HIGH>;
>  	};
>  
>  	hid@2c {
> @@ -346,7 +346,7 @@ hid@2c {
>  		reg = <0x2c>;
>  		hid-descr-addr = <0x20>;
>  
> -		interrupts-extended = <&tlmm 37 IRQ_TYPE_EDGE_RISING>;
> +		interrupts-extended = <&tlmm 37 IRQ_TYPE_LEVEL_HIGH>;
>  
>  		pinctrl-names = "default";
>  		pinctrl-0 = <&i2c2_hid_active>;
> -- 
> 2.26.0
>