linux-kernel - Re: [PATCH v2 3/5] arm64: dts: qcom: sdm845-xiaomi-beryllium-common: add touchscreen related nodes

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Date:   Tue, 11 Apr 2023 07:56:01 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Joel Selvaraj <joelselvaraj.oss@...il.com>,
        Caleb Connolly <caleb@...nolly.tech>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Henrik Rydberg <rydberg@...math.org>,
        Arnd Bergmann <arnd@...db.de>,
        Robert Jarzmik <robert.jarzmik@...e.fr>,
        Jeff LaBundy <jeff@...undy.com>,
        Markuss Broks <markuss.broks@...il.com>,
        Jean Delvare <jdelvare@...e.de>,
        Job Noorman <job@...rman.info>,
        Alistair Francis <alistair@...stair23.me>,
        Chris Morgan <macromorgan@...mail.com>,
        Hans de Goede <hdegoede@...hat.com>
Cc:     linux-input@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org
Subject: Re: [PATCH v2 3/5] arm64: dts: qcom: sdm845-xiaomi-beryllium-common:
 add touchscreen related nodes

On 10/04/2023 18:01, Joel Selvaraj wrote:
> Enable qupv3_id_1 and gpi_dma1 as they are required for configuring
> touchscreen. Also add pinctrl configurations needed for touchscreen.
> These are common for both the tianma and ebbg touchscreen variant.
> In the subsequent patch, we will initially enable support for the focaltech
> touchscreen used in the EBBG variant. This is done in preparation for that.
> 
> Signed-off-by: Joel Selvaraj <joelselvaraj.oss@...il.com>
> ---
>  .../qcom/sdm845-xiaomi-beryllium-common.dtsi  | 39 +++++++++++++++++++
>  1 file changed, 39 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sdm845-xiaomi-beryllium-common.dtsi b/arch/arm64/boot/dts/qcom/sdm845-xiaomi-beryllium-common.dtsi
> index 5ed975cc6ecb..b580a32fdc3b 100644
> --- a/arch/arm64/boot/dts/qcom/sdm845-xiaomi-beryllium-common.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sdm845-xiaomi-beryllium-common.dtsi
> @@ -268,6 +268,10 @@ &gmu {
>  	status = "okay";
>  };
>  
> +&gpi_dma1 {
> +	status = "okay";
> +};
> +
>  &gpu {
>  	status = "okay";
>  
> @@ -376,6 +380,10 @@ &qupv3_id_0 {
>  	status = "okay";
>  };
>  
> +&qupv3_id_1 {
> +	status = "okay";
> +};
> +
>  &sdhc_2 {
>  	status = "okay";
>  
> @@ -481,6 +489,37 @@ sdc2_card_det_n: sd-card-det-n-state {
>  		function = "gpio";
>  		bias-pull-up;
>  	};
> +
> +	ts_int_default: ts-int-default-state {
> +		pins = "gpio31";
> +		function = "gpio";
> +		drive-strength = <16>;
> +		bias-pull-down;
> +		input-enable;

input-enable is not valid.

> +	};
> +
> +	ts_reset_default: ts-reset-default-state {
> +		pins = "gpio32";
> +		function = "gpio";
> +		drive-strength = <16>;
> +		output-high;
> +	};
> +
> +	ts_int_sleep: ts-int-sleep-state {
> +		pins = "gpio31";
> +		function = "gpio";
> +		drive-strength = <2>;
> +		bias-pull-down;
> +		input-enable;

input-enable is not valid.

Best regards,
Krzysztof