pwm: Update DT bindings to reference pwm.txt for cells documentation

[deliverable/linux.git] / Documentation / devicetree / bindings / pwm / pwm-samsung.txt

diff --git a/Documentation/devicetree/bindings/pwm/pwm-samsung.txt b/Documentation/devicetree/bindings/pwm/pwm-samsung.txt
index ac67c687a3274e3cdffa7219484f24b73761e705..4caa1a78863e088415ca6af4ebd756f354ab3455 100644 (file)
--- a/Documentation/devicetree/bindings/pwm/pwm-samsung.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-samsung.txt
@@ -19,13 +19,9 @@ Required properties:
 - reg: base address and size of register area
 - interrupts: list of timer interrupts (one interrupt per timer, starting at
   timer 0)
-- #pwm-cells: number of cells used for PWM specifier - must be 3
-   the specifier format is as follows:
-     - phandle to PWM controller node
-     - index of PWM channel (from 0 to 4)
-     - PWM signal period in nanoseconds
-     - bitmask of optional PWM flags:
-        0x1 - invert PWM signal
+- #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.
 
 Optional properties:
 - samsung,pwm-outputs: list of PWM channels used as PWM outputs on particular