Add pwm node to support fan on exynosautov9-sadk board.
PWM channel 3 of ExynosAutov9 is connected to fan for SoC cooling
in SADK board.
Signed-off-by: Jaewon Kim <jaewon02.kim@xxxxxxxxxxx>
---
Changes in v3:
- removed adding compatible to driver.
Changes in v2:
- add compatible string to driver.
---
arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts | 6 ++++++
arch/arm64/boot/dts/exynos/exynosautov9.dtsi | 10 ++++++++++
2 files changed, 16 insertions(+)
diff --git a/arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts b/arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts
index 898c2fc345ed..e717bb1cad81 100644
--- a/arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts
+++ b/arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts
@@ -50,6 +50,12 @@
};
};
+&pwm {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm_tout3>;
+ status = "okay";
+};
+
&serial_0 {
pinctrl-0 = <&uart0_bus_dual>;
status = "okay";
diff --git a/arch/arm64/boot/dts/exynos/exynosautov9.dtsi b/arch/arm64/boot/dts/exynos/exynosautov9.dtsi
index d3c5cdeff47f..3b906f4db907 100644
--- a/arch/arm64/boot/dts/exynos/exynosautov9.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynosautov9.dtsi
@@ -1560,6 +1560,16 @@
samsung,syscon-phandle = <&pmu_system_controller>;
samsung,cluster-index = <1>;
};
+
+ pwm: pwm@103f0000 {
+ compatible = "samsung,exynosautov9-pwm",
+ "samsung,exynos4210-pwm";
+ reg = <0x103f0000 0x100>;
+ samsung,pwm-outputs = <0>, <1>, <2>, <3>;
+ #pwm-cells = <3>;
+ clocks = <&xtcxo>;
+ clock-names = "timers";
+ };
};
};
--
2.17.1
