2023-07-18 04:28:54

by Jaewon Kim

Subject: [PATCH v5 2/2] arm64: dts: exynos: add pwm node for exynosautov9-sadk

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 <[email protected]>
---
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 101f51bf565a..bc1815f6ada2 100644
--- a/arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts
+++ b/arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts
@@ -49,6 +49,12 @@
};
};

+&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

2023-07-18 06:17:49

by Jaewon Kim

Subject: Re: [PATCH v5 2/2] arm64: dts: exynos: add pwm node for exynosautov9-sadk

On 23. 7. 18. 15:06, Krzysztof Kozlowski wrote:
> On 18/07/2023 05:42, Jaewon Kim wrote:
>> 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 <[email protected]>
>> ---
>> 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 101f51bf565a..bc1815f6ada2 100644
>> --- a/arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts
>> +++ b/arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts
>> @@ -49,6 +49,12 @@
>> };
>> };
>>
>> +&pwm {
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pwm_tout3>;
>> + status = "okay";
> I think you miss disabling it.

Okay, I will add disable status to soc dtsi.


>
>> +};
> Best regards,
> Krzysztof
>
>

Thanks

Jaewon Kim

2023-07-18 06:27:59

by Krzysztof Kozlowski

Subject: Re: [PATCH v5 2/2] arm64: dts: exynos: add pwm node for exynosautov9-sadk

On 18/07/2023 05:42, Jaewon Kim wrote:
> 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 <[email protected]>
> ---
> 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 101f51bf565a..bc1815f6ada2 100644
> --- a/arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts
> +++ b/arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts
> @@ -49,6 +49,12 @@
> };
> };
>
> +&pwm {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pwm_tout3>;
> + status = "okay";

I think you miss disabling it.

> +};

Best regards,
Krzysztof