From: Vignesh R <vigneshr@xxxxxx>
Add PWMSS device tree nodes for DRA7 SoC family and add documentation
for dt bindings.
Signed-off-by: Vignesh R <vigneshr@xxxxxx>
---
Version 3 changes:
None
.../devicetree/bindings/pwm/pwm-tiehrpwm.txt | 8 +++
.../devicetree/bindings/pwm/pwm-tipwmss.txt | 17 +++++-
arch/arm/boot/dts/dra7.dtsi | 64 ++++++++++++++++++++++
3 files changed, 88 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.txt b/Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.txt
index 9c100b2..25d91ae 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.txt
@@ -4,6 +4,7 @@ Required properties:
- compatible: Must be "ti,<soc>-ehrpwm".
for am33xx - compatible = "ti,am33xx-ehrpwm";
for da850 - compatible = "ti,da850-ehrpwm", "ti,am33xx-ehrpwm";
+ for dra7xx - compatible = "ti,dra7xx-ehrpwm", "ti,am33xx-ehrpwm";
- #pwm-cells: should be 3. See pwm.txt in this directory for a description of
the cells format. The only third cell flag supported by this binding is
PWM_POLARITY_INVERTED.
@@ -27,3 +28,10 @@ ehrpwm0: ehrpwm@0 { /* EHRPWM on da850 */
#pwm-cells = <3>;
reg = <0x300000 0x2000>;
};
+
+ehrpwm0: ehrpwm@0 { /* EHRPWM on dra7xx */
+ compatible = "ti,dra7xx-ehrpwm", "ti,am33xx-ehrpwm";
+ #pwm-cells = <3>;
+ reg = <0x48440200 0x80>;
+ ti,hwmods = "ehrpwm0";
+};
diff --git a/Documentation/devicetree/bindings/pwm/pwm-tipwmss.txt b/Documentation/devicetree/bindings/pwm/pwm-tipwmss.txt
index f7eae77..9270ce6 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-tipwmss.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-tipwmss.txt
@@ -1,7 +1,9 @@
TI SOC based PWM Subsystem
Required properties:
-- compatible: Must be "ti,am33xx-pwmss";
+- compatible: Must be "ti,<soc>-pwmss".
+ for am33xx - compatible = "ti,am33xx-pwmss"
+ for dra7xx - compatible = "ti,dra7xx-pwmss", "ti,am33xx-pwmss"
- reg: physical base address and size of the registers map.
- address-cells: Specify the number of u32 entries needed in child nodes.
Should set to 1.
@@ -29,3 +31,16 @@ pwmss0: pwmss@48300000 {
/* child nodes go here */
};
+
+epwmss0: epwmss@4843e000 { /* On DRA7xx */
+ compatible = "ti,dra7xx-pwmss", "ti,am33xx-pwmss";
+ reg = <0x4843e000 0x30>;
+ ti,hwmods = "epwmss0";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x4843e100 0x4843e100 0x80 /* ECAP */
+ 0x4843e180 0x4843e180 0x80 /* EQEP */
+ 0x4843e200 0x4843e200 0x80>; /* EHRPWM */
+
+ /* child nodes go here */
+};
diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index c4d9175..9143db0 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -1597,6 +1597,70 @@
clock-names = "fck", "sys_clk";
};
};
+
+ epwmss0: epwmss@4843e000 {
+ compatible = "ti,dra7xx-pwmss", "ti,am33xx-pwmss";
+ reg = <0x4843e000 0x30>;
+ ti,hwmods = "epwmss0";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ status = "disabled";
+ ranges = <0x4843e100 0x4843e100 0x80 /* ECAP */
+ 0x4843e180 0x4843e180 0x80 /* EQEP */
+ 0x4843e200 0x4843e200 0x80>;/* EHRPWM */
+
+ ehrpwm0: ehrpwm@4843e200 {
+ compatible = "ti,dra7xx-ehrpwm",
+ "ti,am33xx-ehrpwm";
+ #pwm-cells = <3>;
+ reg = <0x4843e200 0x80>;
+ ti,hwmods = "ehrpwm0";
+ status = "disabled";
+ };
+ };
+
+ epwmss1: epwmss@48440000 {
+ compatible = "ti,dra7xx-pwmss", "ti,am33xx-pwmss";
+ reg = <0x48440000 0x30>;
+ ti,hwmods = "epwmss1";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ status = "disabled";
+ ranges = <0x48440100 0x48440100 0x80 /* ECAP */
+ 0x48440180 0x48440180 0x80 /* EQEP */
+ 0x48440200 0x48440200 0x80>; /* EHRPWM */
+
+ ehrpwm1: ehrpwm@48440200 {
+ compatible = "ti,dra7xx-ehrpwm",
+ "ti,am33xx-ehrpwm";
+ #pwm-cells = <3>;
+ reg = <0x48440200 0x80>;
+ ti,hwmods = "ehrpwm1";
+ status = "disabled";
+ };
+ };
+
+ epwmss2: epwmss@48442000 {
+ compatible = "ti,dra7xx-pwmss", "ti,am33xx-pwmss";
+ reg = <0x48442000 0x30>;
+ ti,hwmods = "epwmss2";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ status = "disabled";
+
+ ranges = <0x48442100 0x48442100 0x80 /* ECAP */
+ 0x48442180 0x48442180 0x80 /* EQEP */
+ 0x48442200 0x48442200 0x80>; /* EHRPWM */
+
+ ehrpwm2: ehrpwm@48442200 {
+ compatible = "ti,dra7xx-ehrpwm",
+ "ti,am33xx-ehrpwm";
+ #pwm-cells = <3>;
+ reg = <0x48442200 0x80>;
+ ti,hwmods = "ehrpwm2";
+ status = "disabled";
+ };
+ };
};
thermal_zones: thermal-zones {
--
2.7.0
--
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