[PATCH 1/2] arm64: tegra: Add PWM controllers on Tegra194

[PATCH 1/2] arm64: tegra: Add PWM controllers on Tegra194

[Thierry Reding]

From: Thierry Reding <treding@nvidia.com>

Tegra194 has eight single-channel PWM controllers, one of them in the
AON partition.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 arch/arm64/boot/dts/nvidia/tegra194.dtsi | 96 ++++++++++++++++++++++++
 1 file changed, 96 insertions(+)

diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
index 9fc14bb9a0af..c2091bb16546 100644
--- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
@@ -209,6 +209,90 @@
 			status = "disabled";
 		};
 
+		pwm1: pwm@3280000 {
+			compatible = "nvidia,tegra194-pwm",
+				     "nvidia,tegra186-pwm";
+			reg = <0x3280000 0x10000>;
+			clocks = <&bpmp TEGRA194_CLK_PWM1>;
+			clock-names = "pwm";
+			resets = <&bpmp TEGRA194_RESET_PWM1>;
+			reset-names = "pwm";
+			status = "disabled";
+			#pwm-cells = <2>;
+		};
+
+		pwm2: pwm@3290000 {
+			compatible = "nvidia,tegra194-pwm",
+				     "nvidia,tegra186-pwm";
+			reg = <0x3290000 0x10000>;
+			clocks = <&bpmp TEGRA194_CLK_PWM2>;
+			clock-names = "pwm";
+			resets = <&bpmp TEGRA194_RESET_PWM2>;
+			reset-names = "pwm";
+			status = "disabled";
+			#pwm-cells = <2>;
+		};
+
+		pwm3: pwm@32a0000 {
+			compatible = "nvidia,tegra194-pwm",
+				     "nvidia,tegra186-pwm";
+			reg = <0x32a0000 0x10000>;
+			clocks = <&bpmp TEGRA194_CLK_PWM3>;
+			clock-names = "pwm";
+			resets = <&bpmp TEGRA194_RESET_PWM3>;
+			reset-names = "pwm";
+			status = "disabled";
+			#pwm-cells = <2>;
+		};
+
+		pwm5: pwm@32c0000 {
+			compatible = "nvidia,tegra194-pwm",
+				     "nvidia,tegra186-pwm";
+			reg = <0x32c0000 0x10000>;
+			clocks = <&bpmp TEGRA194_CLK_PWM5>;
+			clock-names = "pwm";
+			resets = <&bpmp TEGRA194_RESET_PWM5>;
+			reset-names = "pwm";
+			status = "disabled";
+			#pwm-cells = <2>;
+		};
+
+		pwm6: pwm@32d0000 {
+			compatible = "nvidia,tegra194-pwm",
+				     "nvidia,tegra186-pwm";
+			reg = <0x32d0000 0x10000>;
+			clocks = <&bpmp TEGRA194_CLK_PWM6>;
+			clock-names = "pwm";
+			resets = <&bpmp TEGRA194_RESET_PWM6>;
+			reset-names = "pwm";
+			status = "disabled";
+			#pwm-cells = <2>;
+		};
+
+		pwm7: pwm@32e0000 {
+			compatible = "nvidia,tegra194-pwm",
+				     "nvidia,tegra186-pwm";
+			reg = <0x32e0000 0x10000>;
+			clocks = <&bpmp TEGRA194_CLK_PWM7>;
+			clock-names = "pwm";
+			resets = <&bpmp TEGRA194_RESET_PWM7>;
+			reset-names = "pwm";
+			status = "disabled";
+			#pwm-cells = <2>;
+		};
+
+		pwm8: pwm@32f0000 {
+			compatible = "nvidia,tegra194-pwm",
+				     "nvidia,tegra186-pwm";
+			reg = <0x32f0000 0x10000>;
+			clocks = <&bpmp TEGRA194_CLK_PWM8>;
+			clock-names = "pwm";
+			resets = <&bpmp TEGRA194_RESET_PWM8>;
+			reset-names = "pwm";
+			status = "disabled";
+			#pwm-cells = <2>;
+		};
+
 		sdmmc1: sdhci@3400000 {
 			compatible = "nvidia,tegra194-sdhci", "nvidia,tegra186-sdhci";
 			reg = <0x03400000 0x10000>;
@@ -313,6 +397,18 @@
 			status = "disabled";
 		};
 
+		pwm4: pwm@c340000 {
+			compatible = "nvidia,tegra194-pwm",
+				     "nvidia,tegra186-pwm";
+			reg = <0xc340000 0x10000>;
+			clocks = <&bpmp TEGRA194_CLK_PWM4>;
+			clock-names = "pwm";
+			resets = <&bpmp TEGRA194_RESET_PWM4>;
+			reset-names = "pwm";
+			status = "disabled";
+			#pwm-cells = <2>;
+		};
+
 		pmc@c360000 {
 			compatible = "nvidia,tegra194-pmc";
 			reg = <0x0c360000 0x10000>,
-- 
2.19.1

[PATCH 2/2] arm64: tegra: Add PWM fan support on Jetson Xavier

[Thierry Reding]

From: Thierry Reding <treding@nvidia.com>

Enable PWM4 in device tree and use it to drive the PWM fan on the Jetson
Xavier.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 arch/arm64/boot/dts/nvidia/tegra194-p2972-0000.dts | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm64/boot/dts/nvidia/tegra194-p2972-0000.dts b/arch/arm64/boot/dts/nvidia/tegra194-p2972-0000.dts
index 9ff3c18280c4..86f05504ca38 100644
--- a/arch/arm64/boot/dts/nvidia/tegra194-p2972-0000.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra194-p2972-0000.dts
@@ -12,5 +12,14 @@
 		sdhci@3400000 {
 			status = "okay";
 		};
+
+		pwm@c340000 {
+			status = "okay";
+		};
+	};
+
+	fan {
+		compatible = "pwm-fan";
+		pwms = <&pwm4 0 45334>;
 	};
 };
-- 
2.19.1

Re: [PATCH 1/2] arm64: tegra: Add PWM controllers on Tegra194

[Thierry Reding]

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On Wed, Oct 24, 2018 at 05:33:52PM +0200, Thierry Reding wrote:
> From: Thierry Reding <treding@nvidia.com>
> 
> Tegra194 has eight single-channel PWM controllers, one of them in the
> AON partition.
> 
> Signed-off-by: Thierry Reding <treding@nvidia.com>
> ---
>  arch/arm64/boot/dts/nvidia/tegra194.dtsi | 96 ++++++++++++++++++++++++
>  1 file changed, 96 insertions(+)

Both patches applied to for-4.21/arm64/dt.

Thierry

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