[PATCH v4 2/2] arm64: dts: qcom: sdm845-shift-axolotl: Add actuator for main rear camera
From: David Heidelberg via B4 Relay
Date: Mon Aug 10 2026 - 06:28:17 EST
From: David Heidelberg <david@xxxxxxx>
Main rear camera uses Dongwoon DW9714V actuator. Add regulator and
actuator node.
Since the actuator sits on the CCI I2C bus, whose 1.8V side is fed by
vreg_lvs1a_1p8 and there is no place to describe that, keep it always-on
for now, until bus-supply exists.
Signed-off-by: David Heidelberg <david@xxxxxxx>
---
arch/arm64/boot/dts/qcom/sdm845-shift-axolotl.dts | 48 +++++++++++++++++++++++
1 file changed, 48 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/sdm845-shift-axolotl.dts b/arch/arm64/boot/dts/qcom/sdm845-shift-axolotl.dts
index e31c784eff3de..358ce1930d4e1 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-shift-axolotl.dts
+++ b/arch/arm64/boot/dts/qcom/sdm845-shift-axolotl.dts
@@ -81,16 +81,34 @@ ramoops: ramoops@b0000000 {
battery: battery {
compatible = "simple-battery";
charge-full-design-microamp-hours = <3850000>;
voltage-min-design-microvolt = <3600000>;
voltage-max-design-microvolt = <4400000>;
};
+ /* SGM2036-2.8YUDH4G/TR */
+ cam_main_af_2p8: regulator-cam-main-af-2p8 {
+ compatible = "regulator-fixed";
+
+ regulator-name = "cam_main_af_2p8";
+ regulator-min-microvolt = <2800000>;
+ regulator-max-microvolt = <2800000>;
+ regulator-enable-ramp-delay = <100>;
+
+ gpio = <&tlmm 8 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+
+ pinctrl-0 = <&cam_main_af_default_state>;
+ pinctrl-names = "default";
+
+ vin-supply = <&vreg_bob>;
+ };
+
vph_pwr: vph-pwr-regulator {
compatible = "regulator-fixed";
regulator-name = "vph_pwr";
regulator-min-microvolt = <3700000>;
regulator-max-microvolt = <3700000>;
};
vreg_s4a_1p8: pm8998-smps4 {
@@ -403,16 +421,23 @@ vreg_l28a_3p0: ldo28 {
regulator-min-microvolt = <2856000>;
regulator-max-microvolt = <3008000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
};
vreg_lvs1a_1p8: lvs1 {
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
+
+ /*
+ * Supplies the 1.8V side of the CCI I2C level
+ * shifter; keep enabled until a generic
+ * bus-supply property exists.
+ */
+ regulator-always-on;
};
vreg_lvs2a_1p8: lvs2 {
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
};
};
@@ -441,16 +466,32 @@ regulators-2 {
vreg_s3c_0p6: smps3 {
regulator-min-microvolt = <600000>;
regulator-max-microvolt = <600000>;
};
};
};
+&cci {
+ status = "okay";
+};
+
+&cci_i2c0 {
+ /* main camera actuator */
+ camera-lens@c {
+ compatible = "dongwoon,dw9714v",
+ "dongwoon,dw9714a",
+ "dongwoon,dw9714";
+ reg = <0x0c>;
+
+ vcc-supply = <&cam_main_af_2p8>;
+ };
+};
+
&cdsp_pas {
firmware-name = "qcom/sdm845/SHIFT/axolotl/cdsp.mbn";
status = "okay";
};
&gcc {
protected-clocks = <GCC_QSPI_CORE_CLK>,
@@ -699,16 +740,23 @@ &slpi_pas {
firmware-name = "qcom/sdm845/SHIFT/axolotl/slpi.mbn";
status = "okay";
};
&tlmm {
gpio-reserved-ranges = <0 4>, <81 4>;
+ cam_main_af_default_state: cam-main-af-default-state {
+ pins = "gpio8";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-disable;
+ };
+
sdc2_default_state: sdc2-default-state {
clk-pins {
pins = "sdc2_clk";
drive-strength = <16>;
bias-disable;
};
cmd-pins {
--
2.55.0