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>
[fcooper@xxxxxx: Use updated bindings for PWMSS and ePWM]
Signed-off-by: Franklin S Cooper Jr <fcooper@xxxxxx>
---
Version 4 changes:
Remove hwmod entries.
Add clocks/clock-names to pwm nodes.
.../devicetree/bindings/pwm/pwm-tiehrpwm.txt | 9 ++++
.../devicetree/bindings/pwm/pwm-tipwmss.txt | 15 +++++-
arch/arm/boot/dts/dra7.dtsi | 60 ++++++++++++++++++++++
3 files changed, 83 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.txt b/Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.txt
index 345d3f6..5965b9d 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.
@@ -28,3 +29,11 @@ ehrpwm0: pwm@01f00000 { /* EHRPWM on da850 */
#pwm-cells = <3>;
reg = <0x300000 0x2000>;
};
+
+ehrpwm0: pwm@4843e200 { /* EHRPWM on dra7xx */
+ compatible = "ti,dra7xx-ehrpwm", "ti,am33xx-ehrpwm";
+ #pwm-cells = <3>;
+ reg = <0x48440200 0x80>;
+ clocks = <&ehrpwm0_tbclk>;
+ clock-names = "tbclk";
+};
diff --git a/Documentation/devicetree/bindings/pwm/pwm-tipwmss.txt b/Documentation/devicetree/bindings/pwm/pwm-tipwmss.txt
index 672fa71..f137d0b 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.
@@ -25,3 +27,14 @@ 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;
+
+ /* child nodes go here */
+};
diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index c4d9175..cc161b3 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -1597,6 +1597,66 @@
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;
+
+ ehrpwm0: pwm@4843e200 {
+ compatible = "ti,dra7xx-ehrpwm",
+ "ti,am33xx-ehrpwm";
+ #pwm-cells = <3>;
+ reg = <0x4843e200 0x80>;
+ clocks = <&ehrpwm0_tbclk>;
+ clock-names = "tbclk";
+ 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;
+
+ ehrpwm1: pwm@48440200 {
+ compatible = "ti,dra7xx-ehrpwm",
+ "ti,am33xx-ehrpwm";
+ #pwm-cells = <3>;
+ reg = <0x48440200 0x80>;
+ clocks = <&ehrpwm1_tbclk>;
+ clock-names = "tbclk";
+ 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;
+
+ ehrpwm2: pwm@48442200 {
+ compatible = "ti,dra7xx-ehrpwm",
+ "ti,am33xx-ehrpwm";
+ #pwm-cells = <3>;
+ reg = <0x48442200 0x80>;
+ clocks = <&ehrpwm2_tbclk>;
+ clock-names = "tbclk";
+ status = "disabled";
+ };
+ };
};
thermal_zones: thermal-zones {
--
2.7.0
--
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