[PATCH] ARM: dts: r8a7790: Add PWM device nodes

Geert Uytterhoeven geert+renesas at glider.be
Mon Mar 20 09:49:27 PDT 2023


Add support for the 7 PWM channels provided by PWM Timers on R-Car H2,
by adding device nodes describing the PWM Timers.

Signed-off-by: Geert Uytterhoeven <geert+renesas at glider.be>
---
PWM1(b) and PWM3-6 have bested with PWM sysfs and a logic analyzer on
the Lager development board using DT overlays available from [1].

To be queued in renesas-devel-for-v6.4.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git/log/?h=topic/renesas-overlays

 arch/arm/boot/dts/r8a7790.dtsi | 70 ++++++++++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)

diff --git a/arch/arm/boot/dts/r8a7790.dtsi b/arch/arm/boot/dts/r8a7790.dtsi
index 7211a5bb18a3b3df..46fb81f5062ff6bc 100644
--- a/arch/arm/boot/dts/r8a7790.dtsi
+++ b/arch/arm/boot/dts/r8a7790.dtsi
@@ -1048,6 +1048,76 @@ msiof3: spi at e6c90000 {
 			status = "disabled";
 		};
 
+		pwm0: pwm at e6e30000 {
+			compatible = "renesas,pwm-r8a7790", "renesas,pwm-rcar";
+			reg = <0 0xe6e30000 0 0x8>;
+			clocks = <&cpg CPG_MOD 523>;
+			power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
+			resets = <&cpg 523>;
+			#pwm-cells = <2>;
+			status = "disabled";
+		};
+
+		pwm1: pwm at e6e31000 {
+			compatible = "renesas,pwm-r8a7790", "renesas,pwm-rcar";
+			reg = <0 0xe6e31000 0 0x8>;
+			clocks = <&cpg CPG_MOD 523>;
+			power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
+			resets = <&cpg 523>;
+			#pwm-cells = <2>;
+			status = "disabled";
+		};
+
+		pwm2: pwm at e6e32000 {
+			compatible = "renesas,pwm-r8a7790", "renesas,pwm-rcar";
+			reg = <0 0xe6e32000 0 0x8>;
+			clocks = <&cpg CPG_MOD 523>;
+			power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
+			resets = <&cpg 523>;
+			#pwm-cells = <2>;
+			status = "disabled";
+		};
+
+		pwm3: pwm at e6e33000 {
+			compatible = "renesas,pwm-r8a7790", "renesas,pwm-rcar";
+			reg = <0 0xe6e33000 0 0x8>;
+			clocks = <&cpg CPG_MOD 523>;
+			power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
+			resets = <&cpg 523>;
+			#pwm-cells = <2>;
+			status = "disabled";
+		};
+
+		pwm4: pwm at e6e34000 {
+			compatible = "renesas,pwm-r8a7790", "renesas,pwm-rcar";
+			reg = <0 0xe6e34000 0 0x8>;
+			clocks = <&cpg CPG_MOD 523>;
+			power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
+			resets = <&cpg 523>;
+			#pwm-cells = <2>;
+			status = "disabled";
+		};
+
+		pwm5: pwm at e6e35000 {
+			compatible = "renesas,pwm-r8a7790", "renesas,pwm-rcar";
+			reg = <0 0xe6e35000 0 0x8>;
+			clocks = <&cpg CPG_MOD 523>;
+			power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
+			resets = <&cpg 523>;
+			#pwm-cells = <2>;
+			status = "disabled";
+		};
+
+		pwm6: pwm at e6e36000 {
+			compatible = "renesas,pwm-r8a7790", "renesas,pwm-rcar";
+			reg = <0 0xe6e36000 0 0x8>;
+			clocks = <&cpg CPG_MOD 523>;
+			power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
+			resets = <&cpg 523>;
+			#pwm-cells = <2>;
+			status = "disabled";
+		};
+
 		can0: can at e6e80000 {
 			compatible = "renesas,can-r8a7790",
 				     "renesas,rcar-gen2-can";
-- 
2.34.1




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