linux-kernel - [PATCH v3 1/4] arm64: dts: qcom: ipq9574: Add gpio details for eMMC

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Message-Id: <20260129062825.666457-2-varadarajan.narayanan@oss.qualcomm.com>
Date: Thu, 29 Jan 2026 11:58:22 +0530
From: Varadarajan Narayanan <varadarajan.narayanan@....qualcomm.com>
To: andersson@...nel.org, konradybcio@...nel.org, robh@...nel.org,
        krzk+dt@...nel.org, conor+dt@...nel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org
Cc: sumit.garg@....qualcomm.com, dmitry.baryshkov@....qualcomm.com,
        Varadarajan Narayanan <varadarajan.narayanan@....qualcomm.com>,
        Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Subject: [PATCH v3 1/4] arm64: dts: qcom: ipq9574: Add gpio details for eMMC

The RDP433 has NAND and eMMC variants. Presently, only NAND variant is
supported. To enable support for eMMC variant, add the relevant GPIO
related information.

Do not enable NAND by default here. Enable it in board specific DTS.

Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Signed-off-by: Varadarajan Narayanan <varadarajan.narayanan@....qualcomm.com>
---
v3: Disable nand in ipq9574-rdp-common.dtsi and enable it where required.
    Add 'Reviewed-by: Konrad Dybcio'
---
 .../boot/dts/qcom/ipq9574-rdp-common.dtsi     | 34 ++++++++++++++++++-
 1 file changed, 33 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/ipq9574-rdp-common.dtsi b/arch/arm64/boot/dts/qcom/ipq9574-rdp-common.dtsi
index bdb396afb992..c0d575562d39 100644
--- a/arch/arm64/boot/dts/qcom/ipq9574-rdp-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/ipq9574-rdp-common.dtsi
@@ -169,6 +169,38 @@ data-pins {
 			bias-disable;
 		};
 	};
+
+	sdc_default_state: sdc-default-state {
+		clk-pins {
+			pins = "gpio5";
+			function = "sdc_clk";
+			drive-strength = <8>;
+			bias-disable;
+		};
+
+		cmd-pins {
+			pins = "gpio4";
+			function = "sdc_cmd";
+			drive-strength = <8>;
+			bias-pull-up;
+		};
+
+		data-pins {
+			pins = "gpio0", "gpio1", "gpio2",
+			       "gpio3", "gpio6", "gpio7",
+			       "gpio8", "gpio9";
+			function = "sdc_data";
+			drive-strength = <8>;
+			bias-pull-up;
+		};
+
+		rclk-pins {
+			pins = "gpio10";
+			function = "sdc_rclk";
+			drive-strength = <8>;
+			bias-pull-down;
+		};
+	};
 };
 
 &qpic_bam {
@@ -179,7 +211,7 @@ &qpic_nand {
 	pinctrl-0 = <&qpic_snand_default_state>;
 	pinctrl-names = "default";
 
-	status = "okay";
+	status = "disabled";
 
 	flash@0 {
 		compatible = "spi-nand";
-- 
2.34.1