pwm: mediatek: add pwm support for MediaTek MT7987 SoC
This patch adds pwm support for MediaTek MT7987 SoC.
diff --git a/arch/arm/dts/mt7987-pinctrl.dtsi b/arch/arm/dts/mt7987-pinctrl.dtsi
index b5e643f..dfde212 100644
--- a/arch/arm/dts/mt7987-pinctrl.dtsi
+++ b/arch/arm/dts/mt7987-pinctrl.dtsi
@@ -191,6 +191,20 @@
};
};
+ pwm_pins: pwm-pins {
+ mux {
+ /*
+ * - pwm0 : PWM0@PIN13
+ * - pwm1_0 : PWM1@PIN7 (share with JTAG)
+ * pwm1_1 : PWM1@PIN43 (share with i2c0)
+ * - pwm2_0 : PWM2@PIN12 (share with PCM)
+ * pwm2_1 : PWM2@PIN44 (share with i2c0)
+ */
+ function = "pwm";
+ groups = "pwm0";
+ };
+ };
+
uart1_pins: uart1-pins {
mux {
function = "uart";
diff --git a/arch/arm/dts/mt7987.dtsi b/arch/arm/dts/mt7987.dtsi
index fd1585f..4c1d597 100644
--- a/arch/arm/dts/mt7987.dtsi
+++ b/arch/arm/dts/mt7987.dtsi
@@ -389,21 +389,15 @@
};
pwm: pwm@10048000 {
- compatible = "mediatek,mt7988-pwm";
+ compatible = "mediatek,mt7987-pwm";
reg = <0 0x10048000 0 0x1000>;
#pwm-cells = <2>;
clocks = <&infracfg CLK_INFRA_66M_PWM_BCK>,
<&infracfg CLK_INFRA_66M_PWM_HCK>,
- <&clkxtal>,
- <&clkxtal>,
- <&clkxtal>,
- <&clkxtal>,
- <&clkxtal>,
- <&clkxtal>,
- <&clkxtal>,
- <&clkxtal>;
- clock-names = "top", "main", "pwm1", "pwm2", "pwm3",
- "pwm4","pwm5","pwm6","pwm7","pwm8";
+ <&infracfg CLK_INFRA_66M_PWM_HCK>,
+ <&infracfg CLK_INFRA_66M_PWM_HCK>,
+ <&infracfg CLK_INFRA_66M_PWM_HCK>;
+ clock-names = "top", "main", "pwm1", "pwm2", "pwm3";
status = "disabled";
};
diff --git a/arch/arm/dts/mt7987a.dtsi b/arch/arm/dts/mt7987a.dtsi
index 028f563..bf53e89 100644
--- a/arch/arm/dts/mt7987a.dtsi
+++ b/arch/arm/dts/mt7987a.dtsi
@@ -59,6 +59,8 @@
};
&pwm {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm_pins>;
status = "okay";
};