ARM: dts: DRA7: Add dt nodes for PWMSS

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

Signed-off-by: Vignesh R <vigneshr@ti.com>
[fcooper@ti.com: Add eCAP and use updated bindings for PWMSS and ePWM]
Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt b/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt
index f2a9a7c..8007e83 100644 (file)
--- a/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt
@@ -5,6 +5,7 @@ Required properties:
   for am33xx - compatible = "ti,am3352-ecap", "ti,am33xx-ecap";
   for am4372 - compatible = "ti,am4372-ecap", "ti,am3352-ecap", "ti,am33xx-ecap";
   for da850  - compatible = "ti,da850-ecap", "ti,am3352-ecap", "ti,am33xx-ecap";
+  for dra746 - compatible = "ti,dra746-ecap", "ti,am3352-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.
@@ -38,3 +39,11 @@ ecap0: ecap@1f06000 { /* ECAP on da850 */
        #pwm-cells = <3>;
        reg = <0x1f06000 0x80>;
 };
+
+ecap0: ecap@4843e100 {
+       compatible = "ti,dra746-ecap", "ti,am3352-ecap";
+       #pwm-cells = <3>;
+       reg = <0x4843e100 0x80>;
+       clocks = <&l4_root_clk_div>;
+       clock-names = "fck";
+};

diff --git a/Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.txt b/Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.txt
index 41a2bd4..944fe35 100644 (file)
--- a/Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.txt
@@ -5,6 +5,7 @@ Required properties:
   for am33xx  - compatible = "ti,am3352-ehrpwm", "ti,am33xx-ehrpwm";
   for am4372  - compatible = "ti,am4372-ehrpwm", "ti-am3352-ehrpwm", "ti,am33xx-ehrpwm";
   for da850   - compatible = "ti,da850-ehrpwm", "ti-am3352-ehrpwm", "ti,am33xx-ehrpwm";
+  for dra746 - compatible = "ti,dra746-ehrpwm", "ti-am3352-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.
@@ -38,3 +39,11 @@ ehrpwm0: pwm@1f00000 { /* EHRPWM on da850 */
        #pwm-cells = <3>;
        reg = <0x1f00000 0x2000>;
 };
+
+ehrpwm0: pwm@4843e200 { /* EHRPWM on dra746 */
+       compatible = "ti,dra746-ehrpwm", "ti,am3352-ehrpwm";
+       #pwm-cells = <3>;
+       reg = <0x4843e200 0x80>;
+       clocks = <&ehrpwm0_tbclk>, <&l4_root_clk_div>;
+       clock-names = "tbclk", "fck";
+};

diff --git a/Documentation/devicetree/bindings/pwm/pwm-tipwmss.txt b/Documentation/devicetree/bindings/pwm/pwm-tipwmss.txt
index fd8e87c..1a5d7b7 100644 (file)
--- a/Documentation/devicetree/bindings/pwm/pwm-tipwmss.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-tipwmss.txt
@@ -4,6 +4,7 @@ Required properties:
 - compatible: Must be "ti,<soc>-pwmss".
   for am33xx  - compatible = "ti,am33xx-pwmss";
   for am4372  - compatible = "ti,am4372-pwmss","ti,am33xx-pwmss";
+  for dra746 - compatible = "ti,dra746-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.
@@ -46,3 +47,14 @@ epwmss0: epwmss@48300000 { /* PWMSS for am4372 */
 
        /* child nodes go here */
 };
+
+epwmss0: epwmss@4843e000 { /* PWMSS for DRA7xx */
+       compatible = "ti,dra746-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 e007401..5a21e46 100644 (file)
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -1743,6 +1743,96 @@
                                clock-names = "fck", "sys_clk";
                        };
                };
+
+               epwmss0: epwmss@4843e000 {
+                       compatible = "ti,dra746-pwmss", "ti,am33xx-pwmss";
+                       reg = <0x4843e000 0x30>;
+                       ti,hwmods = "epwmss0";
+                       #address-cells = <1>;
+                       #size-cells = <1>;
+                       status = "disabled";
+                       ranges;
+
+                       ehrpwm0: pwm@4843e200 {
+                               compatible = "ti,dra746-ehrpwm",
+                                            "ti,am3352-ehrpwm";
+                               #pwm-cells = <3>;
+                               reg = <0x4843e200 0x80>;
+                               clocks = <&ehrpwm0_tbclk>, <&l4_root_clk_div>;
+                               clock-names = "tbclk", "fck";
+                               status = "disabled";
+                       };
+
+                       ecap0: ecap@4843e100 {
+                               compatible = "ti,dra746-ecap",
+                                            "ti,am3352-ecap";
+                               #pwm-cells = <3>;
+                               reg = <0x4843e100 0x80>;
+                               clocks = <&l4_root_clk_div>;
+                               clock-names = "fck";
+                               status = "disabled";
+                       };
+               };
+
+               epwmss1: epwmss@48440000 {
+                       compatible = "ti,dra746-pwmss", "ti,am33xx-pwmss";
+                       reg = <0x48440000 0x30>;
+                       ti,hwmods = "epwmss1";
+                       #address-cells = <1>;
+                       #size-cells = <1>;
+                       status = "disabled";
+                       ranges;
+
+                       ehrpwm1: pwm@48440200 {
+                               compatible = "ti,dra746-ehrpwm",
+                                            "ti,am3352-ehrpwm";
+                               #pwm-cells = <3>;
+                               reg = <0x48440200 0x80>;
+                               clocks = <&ehrpwm1_tbclk>, <&l4_root_clk_div>;
+                               clock-names = "tbclk", "fck";
+                               status = "disabled";
+                       };
+
+                       ecap1: ecap@48440100 {
+                               compatible = "ti,dra746-ecap",
+                                            "ti,am3352-ecap";
+                               #pwm-cells = <3>;
+                               reg = <0x48440100 0x80>;
+                               clocks = <&l4_root_clk_div>;
+                               clock-names = "fck";
+                               status = "disabled";
+                       };
+               };
+
+               epwmss2: epwmss@48442000 {
+                       compatible = "ti,dra746-pwmss", "ti,am33xx-pwmss";
+                       reg = <0x48442000 0x30>;
+                       ti,hwmods = "epwmss2";
+                       #address-cells = <1>;
+                       #size-cells = <1>;
+                       status = "disabled";
+                       ranges;
+
+                       ehrpwm2: pwm@48442200 {
+                               compatible = "ti,dra746-ehrpwm",
+                                            "ti,am3352-ehrpwm";
+                               #pwm-cells = <3>;
+                               reg = <0x48442200 0x80>;
+                               clocks = <&ehrpwm2_tbclk>, <&l4_root_clk_div>;
+                               clock-names = "tbclk", "fck";
+                               status = "disabled";
+                       };
+
+                       ecap2: ecap@48442100 {
+                               compatible = "ti,dra746-ecap",
+                                            "ti,am3352-ecap";
+                               #pwm-cells = <3>;
+                               reg = <0x48442100 0x80>;
+                               clocks = <&l4_root_clk_div>;
+                               clock-names = "fck";
+                               status = "disabled";
+                       };
+               };
        };
 
        thermal_zones: thermal-zones {