linux-kernel - [PATCH v4 1/3] arm64: dts: qcom: sc7180-trogdor-homestar: fully configure secondary I2S pins

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Message-Id: <20221020225135.31750-2-krzysztof.kozlowski@linaro.org>
Date:   Thu, 20 Oct 2022 18:51:33 -0400
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Douglas Anderson <dianders@...omium.org>,
        Matthias Kaehlcke <mka@...omium.org>,
        Stephen Boyd <swboyd@...omium.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v4 1/3] arm64: dts: qcom: sc7180-trogdor-homestar: fully configure secondary I2S pins

The Trogdor Homestar DTSI adds additional GPIO52 pin to secondary I2S pins
("sec_mi2s_active") and configures it to "mi2s_1" function.

The Trogdor DTSI (which is included by Homestar) configures drive
strength and bias for all "sec_mi2s_active" pins, thus the intention was
to apply this configuration also to GPIO52 on Homestar.

Reported-by: Doug Anderson <dianders@...omium.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Fixes: be0416a3f917 ("arm64: dts: qcom: Add sc7180-trogdor-homestar")
Reviewed-by: Douglas Anderson <dianders@...omium.org>

---

Changes since v3:
1. None

Changes since v2:
1. Add tags.

Changes since v1:
1. New patch

Not tested on hardware.

Cc: Doug Anderson <dianders@...omium.org>
---
 arch/arm64/boot/dts/qcom/sc7180-trogdor-homestar.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor-homestar.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor-homestar.dtsi
index 7fcff4eddd3a..8264b8d5e778 100644
--- a/arch/arm64/boot/dts/qcom/sc7180-trogdor-homestar.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor-homestar.dtsi
@@ -194,6 +194,12 @@ pinmux {
 		pins = "gpio49", "gpio50", "gpio51", "gpio52";
 		function = "mi2s_1";
 	};
+
+	pinconf {
+		pins = "gpio49", "gpio50", "gpio51", "gpio52";
+		drive-strength = <2>;
+		bias-pull-down;
+	};
 };
 
 &ts_reset_l {
-- 
2.34.1