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Add drv8846 dts #50

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Add drv8846 dts #50

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ff71e08
arm64: dts: qcom: sm7150-xiaomi-davinci: describe motor driver
stsdc Feb 2, 2026
5c3fef1
arm64: dts: drv8846: use already existing pwm node
stsdc Feb 5, 2026
bf3c39d
arm64: dts: qcom: sm7150-xiaomi-davinci: remove leftover pwm node
stsdc Feb 7, 2026
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66 changes: 66 additions & 0 deletions arch/arm64/boot/dts/qcom/sm7150-xiaomi-davinci.dtsi
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Original file line number Diff line number Diff line change
Expand Up @@ -369,6 +369,18 @@
"MOTOR_STEP_CLK", /* GPIO_10 */
"CAMT_VCM_2P8_EN",
"NC";

pwm_out_gpio10 {
pwm_out_gpio10_default: pwm_out_gpio10_default {
pins = "gpio10";
function = PMIC_GPIO_FUNC_FUNC1;
bias-disable;
power-source = <1>;
output-low;
qcom,drive-strength = <PMIC_GPIO_STRENGTH_LOW>;
drive-push-pull;
};
};
};

&pm6150l_lpg {
Expand All @@ -393,6 +405,32 @@
};
};

&soc {
ti,drv8846@0 {
cell-index = <0>;
reg = <0x00 0x00 0x00 0x00>;
compatible = "ti,drv8846";
pwms = <&pm6150l_lpg 4 1000000>;
motor,mode0-gpio = <&tlmm 91 GPIO_ACTIVE_HIGH>;
motor,mode1-gpio = <&tlmm 66 GPIO_ACTIVE_HIGH>;
motor,sleep-gpio = <&tlmm 88 GPIO_ACTIVE_HIGH>;
motor,dir-gpio = <&tlmm 55 GPIO_ACTIVE_HIGH>;
motor,pwren-gpio = <&tlmm 90 GPIO_ACTIVE_HIGH>;

motor,rampup-pwm-period-ns = <625000>;
motor,rampup-duration-ms = <50>;
motor,high-pwm-period-ns = <52083>;
motor,high-duration-ms = <720>;
motor,rampdown-pwm-period-ns = <625000>;
motor,rampdown-duration-ms = <50>;
motor,step-mode = <2>;

pinctrl-names = "default";
pinctrl-0 = <&pwm_out_gpio10_default &motor_gpio_default &motor_gpio_fault>;
status = "okay";
};
};

&q6afedai {
qi2s@16 {
reg = <PRIMARY_MI2S_RX>;
Expand Down Expand Up @@ -585,6 +623,34 @@
bias-pull-up;
input-enable;
};

motor_gpio_default: motor_gpio_default {
mux {
/* DIR, M0, M1, SLEEP, EN */
pins = "gpio55", "gpio91", "gpio66", "gpio88", "gpio90";
function = "gpio";
};

config {
/* DIR, M0, M1, SLEEP, EN */
pins = "gpio55", "gpio91", "gpio66", "gpio88", "gpio90";
bias-pull-up; /* No PULL */
drive-strength = <PMIC_GPIO_STRENGTH_MED>; /* 2 MA */
};
};

motor_gpio_fault: motor_gpio_fault {
mux {
pins = "gpio43";
function = "gpio";
};

config {
pins = "gpio43";
bias-pull-up; /* No PULL */
drive-strength = <PMIC_GPIO_STRENGTH_MED>; /* 2 MA */
};
};
};

&venus {
Expand Down