linux-kernel - [PATCH v2 5/6] arm64: dts: qcom: r0q: enable ufs storage

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Message-ID: <20251014044135.177210-6-ghatto404@gmail.com>
Date: Tue, 14 Oct 2025 00:41:34 -0400
From: Eric Gonçalves <ghatto404@...il.com>
To: Krzysztof Kozlowski <krzk@...nel.org>,
	Bjorn Andersson <andersson@...nel.org>,
	Konrad Dybcio <konradybcio@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2 5/6] arm64: dts: qcom: r0q: enable ufs storage

Enable UFS internal storage of the Samsung Galaxy S22.

Signed-off-by: Eric Gonçalves <ghatto404@...il.com>
---
 .../boot/dts/qcom/sm8450-samsung-r0q.dts      | 42 +++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sm8450-samsung-r0q.dts b/arch/arm64/boot/dts/qcom/sm8450-samsung-r0q.dts
index 244fed27a4cc..a3b81403d180 100644
--- a/arch/arm64/boot/dts/qcom/sm8450-samsung-r0q.dts
+++ b/arch/arm64/boot/dts/qcom/sm8450-samsung-r0q.dts
@@ -155,6 +155,27 @@ vreg_l5b_0p88: ldo5 {
 			regulator-max-microvolt = <888000>;
 			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
 		};
+
+		vreg_l6b_1p2: ldo6 {
+			regulator-name = "vreg_l6b_1p2";
+			regulator-min-microvolt = <1200000>;
+			regulator-max-microvolt = <1200000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l7b_2p5: ldo7 {
+			regulator-name = "vreg_l7b_2p5";
+			regulator-min-microvolt = <2504000>;
+			regulator-max-microvolt = <2504000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
+
+		vreg_l9b_1p2: ldo9 {
+			regulator-name = "vreg_l9b_1p2";
+			regulator-min-microvolt = <1200000>;
+			regulator-max-microvolt = <1200000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+		};
 	};
 
 	regulators-1 {
@@ -330,6 +351,27 @@ tsp_int_sleep: tsp-int-sleep-state {
 	};
 };
 
+&ufs_mem_hc {
+	reset-gpios = <&tlmm 210 GPIO_ACTIVE_LOW>;
+
+	vcc-supply = <&vreg_l7b_2p5>;
+	vcc-max-microamp = <1100000>;
+	vccq-supply = <&vreg_l9b_1p2>;
+	vccq-max-microamp = <1200000>;
+	vccq2-supply = <&vreg_l9b_1p2>;
+	vccq2-max-microamp = <1200000>;
+	vdd-hba-supply = <&vreg_l9b_1p2>;
+
+	status = "okay";
+};
+
+&ufs_mem_phy {
+	vdda-phy-supply = <&vreg_l5b_0p88>;
+	vdda-pll-supply = <&vreg_l6b_1p2>;
+
+	status = "okay";
+};
+
 &usb_1 {
 	/* Keep USB 2.0 only for now */
 	qcom,select-utmi-as-pipe-clk;
-- 
2.51.0