linux-kernel - Re: [PATCH v4 4/5] arm64: dts: qcom: sm4250: add LPASS LPI pin controller

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <eaz4aordxjgnl7c2xhz6ek23eaapaszytcrea7a7y53b5p6aev@mtk7jsvywgcv>
Date: Fri, 1 Nov 2024 09:50:16 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Alexey Klimov <alexey.klimov@...aro.org>
Cc: linux-sound@...r.kernel.org, srinivas.kandagatla@...aro.org, 
	broonie@...nel.org, lgirdwood@...il.com, robh@...nel.org, krzk+dt@...nel.org, 
	conor+dt@...nel.org, andersson@...nel.org, konradybcio@...nel.org, perex@...ex.cz, 
	tiwai@...e.com, linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
	krzysztof.kozlowski@...aro.org, caleb.connolly@...aro.org, linux-kernel@...r.kernel.org, 
	a39.skl@...il.com
Subject: Re: [PATCH v4 4/5] arm64: dts: qcom: sm4250: add LPASS LPI pin
 controller

On Fri, Nov 01, 2024 at 12:59:24AM +0000, Alexey Klimov wrote:
> Add the Low Power Audio SubSystem Low Power Island (LPASS LPI) pin
> controller device node required for audio subsystem on Qualcomm
> QRB4210 RB2. QRB4210 is based on sm4250 which has a slightly different
> lpass pin controller comparing to sm6115.
> 
> While at this, also add description of lpi_i2s2 pins (active state)
> required for audio playback via HDMI.
> 
> Cc: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> Signed-off-by: Alexey Klimov <alexey.klimov@...aro.org>
> ---
>  arch/arm64/boot/dts/qcom/sm4250.dtsi | 39 ++++++++++++++++++++++++++++
>  1 file changed, 39 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm4250.dtsi b/arch/arm64/boot/dts/qcom/sm4250.dtsi
> index a0ed61925e12..1b9983ab122e 100644
> --- a/arch/arm64/boot/dts/qcom/sm4250.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sm4250.dtsi
> @@ -36,3 +36,42 @@ &cpu6 {
>  &cpu7 {
>  	compatible = "qcom,kryo240";
>  };
> +
> +&lpass_tlmm {
> +	compatible = "qcom,sm4250-lpass-lpi-pinctrl";
> +	gpio-ranges = <&lpass_tlmm 0 0 26>;

I think this should be <&lpass_tlmm 0 0 27>. The driver defines pins
0-26.

> +
> +	lpi_i2s2_active: lpi-i2s2-active-state {
> +		sck-pins {
> +			pins = "gpio10";
> +			function = "i2s2_clk";
> +			bias-disable;
> +			drive-strength = <8>;
> +			output-high;
> +		};
> +
> +		ws-pins {
> +			pins = "gpio11";
> +			function = "i2s2_ws";
> +			bias-disable;
> +			drive-strength = <8>;
> +			output-high;
> +		};
> +
> +		data-pins {
> +			pins = "gpio12";
> +			function = "i2s2_data";
> +			bias-disable;
> +			drive-strength = <8>;
> +			output-high;
> +		};
> +
> +		ext-mclk1-pins {
> +			pins = "gpio18";
> +			function = "ext_mclk1_a";
> +			bias-disable;
> +			drive-strength = <16>;
> +			output-high;
> +		};
> +	};
> +};
> -- 
> 2.45.2
> 

-- 
With best wishes
Dmitry