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

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Message-ID: <20241101005925.186696-5-alexey.klimov@linaro.org>
Date: Fri,  1 Nov 2024 00:59:24 +0000
From: Alexey Klimov <alexey.klimov@...aro.org>
To: linux-sound@...r.kernel.org,
	srinivas.kandagatla@...aro.org,
	broonie@...nel.org
Cc: 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,
	dmitry.baryshkov@...aro.org,
	krzysztof.kozlowski@...aro.org,
	caleb.connolly@...aro.org,
	linux-kernel@...r.kernel.org,
	a39.skl@...il.com
Subject: [PATCH v4 4/5] arm64: dts: qcom: sm4250: add LPASS LPI pin controller

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>;
+
+	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