linux-kernel - Re: [PATCH 2/2] arm64: dts: qcom: sdm845: Enable debug UART and I2C10 on sdm845-mtp

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Date:   Mon, 11 Jun 2018 22:01:36 -0700
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Douglas Anderson <dianders@...omium.org>
Cc:     andy.gross@...aro.org, rnayak@...eaurora.org,
        kramasub@...eaurora.org, sdharia@...eaurora.org,
        swboyd@...omium.org, devicetree@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Rob Herring <robh+dt@...nel.org>,
        David Brown <david.brown@...aro.org>,
        Will Deacon <will.deacon@....com>,
        Mark Rutland <mark.rutland@....com>, linux-soc@...r.kernel.org,
        Catalin Marinas <catalin.marinas@....com>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 2/2] arm64: dts: qcom: sdm845: Enable debug UART and
 I2C10 on sdm845-mtp

On Thu 07 Jun 13:46 PDT 2018, Douglas Anderson wrote:

> The debug UART is very useful to have.  I2C10 is enabled as an example
> of a I2C port we can talk on for now.  Eventually we'll want to put
> peripherals under it.
> 
> Signed-off-by: Douglas Anderson <dianders@...omium.org>

Reviewed-by: Bjorn Andersson <bjorn.andersson@...aro.org>
Tested-by: Bjorn Andersson <bjorn.andersson@...aro.org>

Regards,
Bjorn

> ---
> 
>  arch/arm64/boot/dts/qcom/sdm845-mtp.dts | 52 +++++++++++++++++++++++++
>  1 file changed, 52 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sdm845-mtp.dts b/arch/arm64/boot/dts/qcom/sdm845-mtp.dts
> index 979ab49913f1..e1eda143a725 100644
> --- a/arch/arm64/boot/dts/qcom/sdm845-mtp.dts
> +++ b/arch/arm64/boot/dts/qcom/sdm845-mtp.dts
> @@ -12,4 +12,56 @@
>  / {
>  	model = "Qualcomm Technologies, Inc. SDM845 MTP";
>  	compatible = "qcom,sdm845-mtp";
> +
> +	aliases {
> +		serial0 = &uart9;
> +	};
> +
> +	chosen {
> +		stdout-path = "serial0:115200n8";
> +	};
> +};
> +
> +&i2c10 {
> +	status = "okay";
> +	clock-frequency = <400000>;
> +};
> +
> +&qupv3_id_1 {
> +	status = "okay";
> +};
> +
> +&uart9 {
> +	status = "okay";
> +};
> +
> +/* PINCTRL - additions to nodes defined in sdm845.dtsi */
> +
> +&qup_i2c10_default {
> +	pinconf {
> +		pins = "gpio55", "gpio56";
> +		drive-strength = <2>;
> +		bias-disable;
> +	};
> +};
> +
> +&qup_uart9_default {
> +	pinconf-tx {
> +		pins = "gpio4";
> +		drive-strength = <2>;
> +		bias-disable;
> +	};
> +
> +	pinconf-rx {
> +		pins = "gpio5";
> +		drive-strength = <2>;
> +		bias-pull-up;
> +	};
> +};
> +
> +&qup_uart9_sleep {
> +	pinconf {
> +		pins = "gpio4", "gpio5";
> +		bias-pull-down;
> +	};
>  };
> -- 
> 2.17.1.1185.g55be947832-goog
>