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From:   Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
To:     Andy Gross <agross@kernel.org>,
        Bjorn Andersson <andersson@kernel.org>,
        Konrad Dybcio <konrad.dybcio@linaro.org>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Conor Dooley <conor+dt@kernel.org>,
        linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org
Cc:     Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Subject: [PATCH 1/4] arm64: dts: qcom: sm8450: move Soundwire pinctrl to its nodes
Date:   Wed, 13 Dec 2023 17:25:32 +0100
Message-Id: <20231213162536.171475-1-krzysztof.kozlowski@linaro.org>
MIME-Version: 1.0
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Precedence: bulk

Pin configuration for Soundwire bus should be set in Soundwire
controller nodes, not in the associated macro codec node.  This
placement change should not have big impact in general, because macro
codec is a clock provider for Soundwire controller, thus its devices is
probed first.  However it will have impact for disabled Soundwire buses,
e.g. WSA2, because after this change the pins will be left in default
state.

We also follow similar approach in newer SoCs, like Qualcomm SM8650.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

---

Not tested on HW.
---
 arch/arm64/boot/dts/qcom/sm8450.dtsi | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sm8450.dtsi b/arch/arm64/boot/dts/qcom/sm8450.dtsi
index 12e55a0c7417..3b6ea9653d2a 100644
--- a/arch/arm64/boot/dts/qcom/sm8450.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8450.dtsi
@@ -2160,8 +2160,6 @@ wsa2macro: codec@31e0000 {
 
 			#clock-cells = <0>;
 			clock-output-names = "wsa2-mclk";
-			pinctrl-names = "default";
-			pinctrl-0 = <&wsa2_swr_active>;
 			#sound-dai-cells = <1>;
 		};
 
@@ -2173,6 +2171,9 @@ swr4: soundwire-controller@31f0000 {
 			clock-names = "iface";
 			label = "WSA2";
 
+			pinctrl-0 = <&wsa2_swr_active>;
+			pinctrl-names = "default";
+
 			qcom,din-ports = <2>;
 			qcom,dout-ports = <6>;
 
@@ -2208,8 +2209,6 @@ rxmacro: codec@3200000 {
 
 			#clock-cells = <0>;
 			clock-output-names = "mclk";
-			pinctrl-names = "default";
-			pinctrl-0 = <&rx_swr_active>;
 			#sound-dai-cells = <1>;
 		};
 
@@ -2223,6 +2222,9 @@ swr1: soundwire-controller@3210000 {
 			qcom,din-ports = <0>;
 			qcom,dout-ports = <5>;
 
+			pinctrl-0 = <&rx_swr_active>;
+			pinctrl-names = "default";
+
 			qcom,ports-sinterval-low =	/bits/ 8 <0x03 0x1f 0x1f 0x07 0x00>;
 			qcom,ports-offset1 =		/bits/ 8 <0x00 0x00 0x0b 0x01 0x00>;
 			qcom,ports-offset2 =		/bits/ 8 <0x00 0x00 0x0b 0x00 0x00>;
@@ -2254,8 +2256,6 @@ txmacro: codec@3220000 {
 
 			#clock-cells = <0>;
 			clock-output-names = "mclk";
-			pinctrl-names = "default";
-			pinctrl-0 = <&tx_swr_active>;
 			#sound-dai-cells = <1>;
 		};
 
@@ -2275,8 +2275,6 @@ wsamacro: codec@3240000 {
 
 			#clock-cells = <0>;
 			clock-output-names = "mclk";
-			pinctrl-names = "default";
-			pinctrl-0 = <&wsa_swr_active>;
 			#sound-dai-cells = <1>;
 		};
 
@@ -2288,6 +2286,9 @@ swr0: soundwire-controller@3250000 {
 			clock-names = "iface";
 			label = "WSA";
 
+			pinctrl-0 = <&wsa_swr_active>;
+			pinctrl-names = "default";
+
 			qcom,din-ports = <2>;
 			qcom,dout-ports = <6>;
 
@@ -2318,6 +2319,9 @@ swr2: soundwire-controller@33b0000 {
 			clock-names = "iface";
 			label = "TX";
 
+			pinctrl-0 = <&tx_swr_active>;
+			pinctrl-names = "default";
+
 			qcom,din-ports = <4>;
 			qcom,dout-ports = <0>;
 			qcom,ports-sinterval-low =	/bits/ 8 <0x01 0x01 0x03 0x03>;
-- 
2.34.1