linux-kernel - [PATCH 1/2] arm64: dts: qcom: qrb4210-rb2: Add SD pinctrl states & fix CD gpio

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Date:   Mon,  1 May 2023 15:50:34 +0530
From:   Bhupesh Sharma <bhupesh.sharma@...aro.org>
To:     linux-arm-msm@...r.kernel.org
Cc:     agross@...nel.org, andersson@...nel.org, konrad.dybcio@...aro.org,
        linux-kernel@...r.kernel.org, bhupesh.linux@...il.com,
        bhupesh.sharma@...aro.org, robh+dt@...nel.org,
        krzysztof.kozlowski@...aro.org, devicetree@...r.kernel.org
Subject: [PATCH 1/2] arm64: dts: qcom: qrb4210-rb2: Add SD pinctrl states & fix CD gpio

Add the default and sleep pinctrl states for SDHC1 & 2 controllers
on QRB4210 RB2 board.

While at it also fix the Card-Detect (CD) gpio for SDHC2 which
allows the uSD card to be detected on the board.

Signed-off-by: Bhupesh Sharma <bhupesh.sharma@...aro.org>
---
 arch/arm64/boot/dts/qcom/qrb4210-rb2.dts | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
index dc80f0bca767..bff6ba1d689f 100644
--- a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
+++ b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
@@ -190,6 +190,10 @@ vreg_l24a_2p96: l24 {
 };
 
 &sdhc_1 {
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&sdc1_state_on>;
+	pinctrl-1 = <&sdc1_state_off>;
+
 	vmmc-supply = <&vreg_l24a_2p96>;
 	vqmmc-supply = <&vreg_l11a_1p8>;
 	no-sdio;
@@ -199,7 +203,11 @@ &sdhc_1 {
 };
 
 &sdhc_2 {
-	cd-gpios = <&tlmm 88 GPIO_ACTIVE_HIGH>; /* card detect gpio */
+	cd-gpios = <&tlmm 88 GPIO_ACTIVE_LOW>; /* card detect gpio */
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&sdc2_state_on &sdc2_card_det_n>;
+	pinctrl-1 = <&sdc2_state_off &sdc2_card_det_n>;
+
 	vmmc-supply = <&vreg_l22a_2p96>;
 	vqmmc-supply = <&vreg_l5a_2p96>;
 	no-sdio;
@@ -216,6 +224,13 @@ &tlmm {
 			       <49 1>, <52 1>, <54 1>,
 			       <56 3>, <61 2>, <64 1>,
 			       <68 1>, <72 8>, <96 1>;
+
+	sdc2_card_det_n: sd-card-det-n-state {
+		pins = "gpio88";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-pull-up;
+	};
 };
 
 &uart4 {
-- 
2.38.1