arm64: tegra: Add PWM controllers on Tegra194
Subsystems (2)
PATCH 1/2 arm64: tegra: Add PWM controllers on Tegra194
From: Thierry Reding <[email protected]>
Tegra194 has eight single-channel PWM controllers, one of them in the AON partition.
Signed-off-by Thierry Reding <[email protected]>
--- arch/arm64/boot/dts/nvidia/tegra194.dtsi | 96 ++++++++++++++++++++++++ 1 file changed, 96 insertions(+)
arch/arm64/boot/dts/nvidia/tegra194.dtsi +96 -0
@@ -209,6 +209,90 @@ status = "disabled"; }; + pwm1: pwm at 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 at 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 at 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 at 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 at 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 at 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 at 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 at 3400000 { compatible = "nvidia,tegra194-sdhci", "nvidia,tegra186-sdhci"; reg = <0x03400000 0x10000>;
@@ -313,6 +397,18 @@ status = "disabled"; }; + pwm4: pwm at 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 at c360000 { compatible = "nvidia,tegra194-pmc"; reg = <0x0c360000 0x10000>,
Signature · 1 line
2.19.1
PATCH 1/2 arm64: tegra: Add PWM controllers on Tegra194
Quoted 9 lines · Thierry Reding
From: Thierry Reding <[email protected]>
Tegra194 has eight single-channel PWM controllers, one of them in the AON partition.
Signed-off-by Thierry Reding <[email protected]>--- 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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PATCH 2/2 arm64: tegra: Add PWM fan support on Jetson Xavier
In reply to Thierry RedingFrom: Thierry Reding <[email protected]>
Enable PWM4 in device tree and use it to drive the PWM fan on the Jetson Xavier.
Signed-off-by Thierry Reding <[email protected]>
--- arch/arm64/boot/dts/nvidia/tegra194-p2972-0000.dts | 9 +++++++++ 1 file changed, 9 insertions(+)
arch/arm64/boot/dts/nvidia/tegra194-p2972-0000.dts +9 -0
@@ -12,5 +12,14 @@ sdhci at 3400000 { status = "okay"; }; + + pwm at c340000 { + status = "okay"; + }; + }; + + fan { + compatible = "pwm-fan"; + pwms = <&pwm4 0 45334>; }; };
Signature · 1 line
2.19.1