arm64: dts: ti: k3-am62-main: Add epwm nodes

Add the compatible DT nodes for all EPWM instances
present in AM62 SoC. There is a total of 3 EPWM modules
available, sharing the same K3 IP as in AM64 SoC.

This also adds a required "ti,am62-epwm-tbclk" clock
provider node for the EPWM time-base clock.

Signed-off-by: Georgi Vlaev <g-vlaev@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Link: https://lore.kernel.org/r/20220531205229.198011-2-g-vlaev@ti.com

diff --git a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
index 12ab7548dc7721a560d64b097e126adf012304f5..03660476364f37623927dbcf33a3bee25425f82d 100644 (file)
--- a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
@@ -54,6 +54,12 @@
                        reg = <0x4044 0x8>;
                        #phy-cells = <1>;
                };
+
+               epwm_tbclk: clock@4130 {
+                       compatible = "ti,am62-epwm-tbclk", "syscon";
+                       reg = <0x4130 0x4>;
+                       #clock-cells = <1>;
+               };
        };
 
        dmss: bus@48000000 {
@@ -584,4 +590,31 @@
                interrupt-names = "int0", "int1";
                bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
        };
+
+       epwm0: pwm@23000000 {
+               compatible = "ti,am64-epwm", "ti,am3352-ehrpwm";
+               #pwm-cells = <3>;
+               reg = <0x00 0x23000000 0x00 0x100>;
+               power-domains = <&k3_pds 86 TI_SCI_PD_EXCLUSIVE>;
+               clocks = <&epwm_tbclk 0>, <&k3_clks 86 0>;
+               clock-names = "tbclk", "fck";
+       };
+
+       epwm1: pwm@23010000 {
+               compatible = "ti,am64-epwm", "ti,am3352-ehrpwm";
+               #pwm-cells = <3>;
+               reg = <0x00 0x23010000 0x00 0x100>;
+               power-domains = <&k3_pds 87 TI_SCI_PD_EXCLUSIVE>;
+               clocks = <&epwm_tbclk 1>, <&k3_clks 87 0>;
+               clock-names = "tbclk", "fck";
+       };
+
+       epwm2: pwm@23020000 {
+               compatible = "ti,am64-epwm", "ti,am3352-ehrpwm";
+               #pwm-cells = <3>;
+               reg = <0x00 0x23020000 0x00 0x100>;
+               power-domains = <&k3_pds 88 TI_SCI_PD_EXCLUSIVE>;
+               clocks = <&epwm_tbclk 2>, <&k3_clks 88 0>;
+               clock-names = "tbclk", "fck";
+       };
 };