Rob,
On 04/28/2016 04:07 PM, Rob Herring wrote:

On Tue, Apr 26, 2016 at 05:36:42PM -0500, Franklin S Cooper Jr wrote:

quoted

There are several SOC specific compatibles for ECAP, EHRPWM and PWMMS
that are in use but aren't properly documented. Therefore, fix this
by adding the compatibles to the appropriate binding documents.

While at it make minor corrections to the binding document.

Signed-off-by: Franklin S Cooper Jr <redacted>
---
 .../devicetree/bindings/pwm/pwm-tiecap.txt          | 12 ++++++++++--
 .../devicetree/bindings/pwm/pwm-tiehrpwm.txt        | 12 ++++++++++--
 .../devicetree/bindings/pwm/pwm-tipwmss.txt         | 21 +++++++++++++++++++--
 3 files changed, 39 insertions(+), 6 deletions(-)

diff --git a/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt b/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt
index fb81179..788da6c 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt

@@ -2,8 +2,9 @@ TI SOC ECAP based APWM controller
 
 Required properties:
 - compatible: Must be "ti,<soc>-ecap".
-  for am33xx - compatible = "ti,am33xx-ecap";
-  for da850  - compatible = "ti,da850-ecap", "ti,am33xx-ecap";
+  for am33xx  - compatible = "ti,am33xx-ecap";
+  for am4372  - compatible = "ti,am4372-ecap", "ti,am33xx-ecap";
+  for da850   - compatible = "ti,da850-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.

@@ -22,6 +23,13 @@ ecap0: ecap@0 { /* ECAP on am33xx */
 	ti,hwmods = "ecap0";
 };
 
+ecap0: ecap@0 { /* ECAP on am4372 */

The unit address is wrong.

quoted

+	compatible = "ti,am4372-ecap", "ti,am33xx-ecap";
+	#pwm-cells = <3>;
+	reg = <0x48300100 0x80>;
+	ti,hwmods = "ecap0";
+};
+
 ecap0: ecap@0 { /* ECAP on da850 */
 	compatible = "ti,da850-ecap", "ti,am33xx-ecap";
 	#pwm-cells = <3>;

diff --git a/Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.txt b/Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.txt
index 9c100b2..99b544f 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.txt

@@ -2,8 +2,9 @@ TI SOC EHRPWM based PWM controller
 
 Required properties:
 - compatible: Must be "ti,<soc>-ehrpwm".
-  for am33xx - compatible = "ti,am33xx-ehrpwm";
-  for da850  - compatible = "ti,da850-ehrpwm", "ti,am33xx-ehrpwm";
+  for am33xx  - compatible = "ti,am33xx-ehrpwm";
+  for am4372  - compatible = "ti,am4372-ehrpwm", "ti,am33xx-ehrpwm";
+  for da850   - compatible = "ti,da850-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.

@@ -22,6 +23,13 @@ ehrpwm0: ehrpwm@0 { /* EHRPWM on am33xx */
 	ti,hwmods = "ehrpwm0";
 };
 
+ehrpwm0: ehrpwm@0 { /* EHRPWM on am4372 */

ditto

Otherwise,

Acked-by: Rob Herring <robh@kernel.org>

Yes, the unit address is wrong but it is wrong in several places. I
added it like that to match what the other bindings are doing. However,
patches 3 and 4 fixes these unit address problems for all the bindings
all together to make things clear.