[PATCH 1/2 v2] pwm: add DT bindings for the STMPE PWM

[PATCH 1/2 v2] pwm: add DT bindings for the STMPE PWM

[Linus Walleij]

This adds fairly standard device tree bindings for the STMPE
PWM found in STMPE24xx multi-purpose expanders.

Cc: devicetree@vger.kernel.org
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
ChangeLog v1->v2:
- Give a simpler, non-contextual node name for the PWM.
---
 Documentation/devicetree/bindings/pwm/st,stmpe-pwm.txt | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pwm/st,stmpe-pwm.txt

diff --git a/Documentation/devicetree/bindings/pwm/st,stmpe-pwm.txt b/Documentation/devicetree/bindings/pwm/st,stmpe-pwm.txt
new file mode 100644
index 000000000000..cb209646bf13
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/st,stmpe-pwm.txt
@@ -0,0 +1,18 @@
+== ST STMPE PWM controller ==
+
+This is a PWM block embedded in the ST Microelectronics STMPE
+(ST Multi-Purpose Expander) chips. The PWM is registered as a
+subdevices of the STMPE MFD device.
+
+Required properties:
+- compatible: should be:
+  - "st,stmpe-pwm"
+- #pwm-cells: should be 2. See pwm.txt in this directory for a description of
+  the cells format.
+
+Example:
+
+pwm0: pwm {
+	compatible = "st,stmpe-pwm";
+	#pwm-cells = <2>;
+};
-- 
2.4.11