[PATCH v5 6/6] ARM: dts: DRA7: Add dt nodes for PWMSS

Franklin S Cooper Jr
2016-03-08T01:23:44Z

From: Vignesh R <vigneshr@ti.com>

Add PWMSS device tree nodes for DRA7 SoC family and add documentation
for dt bindings.

Signed-off-by: Vignesh R <vigneshr@ti.com>
[fcooper at ti.com: Add eCAP and use updated bindings for PWMSS and ePWM]
Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com>
---
Version 5 changes:
Add DT node for eCAP and update eCAP binding documentation

Version 4 changes:
Updated link to the latest documentation

.../devicetree/bindings/pwm/pwm-tiecap.txt | 9 +++
.../devicetree/bindings/pwm/pwm-tiehrpwm.txt | 9 +++
.../devicetree/bindings/pwm/pwm-tipwmss.txt | 15 +++-
arch/arm/boot/dts/dra7.dtsi | 84 ++++++++++++++++++++++
4 files changed, 116 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt b/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt
index 72a8f26..fb9ea89 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt
@@ -4,6 +4,7 @@ Required properties:
- compatible: Must be "ti,<soc>-ecap".
for am33xx - compatible = "ti,am33xx-ecap";
for da850 - compatible = "ti,da850-ecap", "ti,am33xx-ecap";
+ for dra7xx - compatible = "ti,dra7xx-ecap", "ti,am33xx-ecap";
- #pwm-cells: should be 3. See pwm.txt in this directory for a description of
the cells format. The PWM channel index ranges from 0 to 4. The only third
cell flag supported by this binding is PWM_POLARITY_INVERTED.
@@ -26,3 +27,11 @@ ecap0: ecap at 0 { /* ECAP on da850 */
#pwm-cells = <3>;
reg = <0x306000 0x80>;
};
+
+ecap0: ecap at 4843e100 {
+ compatible = "ti,dra7xx-ecap",
+ "ti,am33xx-ecap";
+ #pwm-cells = <3>;
+ reg = <0x4843e100 0x80>;
+};
+
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 at 01f00000 { /* EHRPWM on da850 */
#pwm-cells = <3>;
reg = <0x300000 0x2000>;
};
+
+ehrpwm0: pwm at 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 at 48300000 {

/* child nodes go here */
};
+
+epwmss0: epwmss at 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..db62f55 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -1597,6 +1597,90 @@
clock-names = "fck", "sys_clk";
};
};
+
+ epwmss0: epwmss at 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 at 4843e200 {
+ compatible = "ti,dra7xx-ehrpwm",
+ "ti,am33xx-ehrpwm";
+ #pwm-cells = <3>;
+ reg = <0x4843e200 0x80>;
+ clocks = <&ehrpwm0_tbclk>;
+ clock-names = "tbclk";
+ status = "disabled";
+ };
+
+ ecap0: ecap at 4843e100 {
+ compatible = "ti,dra7xx-ecap",
+ "ti,am33xx-ecap";
+ #pwm-cells = <3>;
+ reg = <0x4843e100 0x80>;
+ status = "disabled";
+ };
+ };
+
+ epwmss1: epwmss at 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 at 48440200 {
+ compatible = "ti,dra7xx-ehrpwm",
+ "ti,am33xx-ehrpwm";
+ #pwm-cells = <3>;
+ reg = <0x48440200 0x80>;
+ clocks = <&ehrpwm1_tbclk>;
+ clock-names = "tbclk";
+ status = "disabled";
+ };
+
+ ecap1: ecap at 48440100 {
+ compatible = "ti,dra7xx-ecap",
+ "ti,am33xx-ecap";
+ #pwm-cells = <3>;
+ reg = <0x48440100 0x80>;
+ status = "disabled";
+ };
+ };
+
+ epwmss2: epwmss at 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 at 48442200 {
+ compatible = "ti,dra7xx-ehrpwm",
+ "ti,am33xx-ehrpwm";
+ #pwm-cells = <3>;
+ reg = <0x48442200 0x80>;
+ clocks = <&ehrpwm2_tbclk>;
+ clock-names = "tbclk";
+ status = "disabled";
+ };
+
+ ecap2: ecap at 48442100 {
+ compatible = "ti,dra7xx-ecap",
+ "ti,am33xx-ecap";
+ #pwm-cells = <3>;
+ reg = <0x48442100 0x80>;
+ status = "disabled";
+ };
+ };
};

thermal_zones: thermal-zones {
--
2.7.0