diff options
Diffstat (limited to 'Documentation/devicetree/bindings/pwm/pwm.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/pwm/pwm.txt | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/Documentation/devicetree/bindings/pwm/pwm.txt b/Documentation/devicetree/bindings/pwm/pwm.txt index 06e67247859a..8556263b8502 100644 --- a/Documentation/devicetree/bindings/pwm/pwm.txt +++ b/Documentation/devicetree/bindings/pwm/pwm.txt @@ -43,13 +43,14 @@ because the name "backlight" would be used as fallback anyway. pwm-specifier typically encodes the chip-relative PWM number and the PWM period in nanoseconds. -Optionally, the pwm-specifier can encode a number of flags in a third cell: -- bit 0: PWM signal polarity (0: normal polarity, 1: inverse polarity) +Optionally, the pwm-specifier can encode a number of flags (defined in +<dt-bindings/pwm/pwm.h>) in a third cell: +- PWM_POLARITY_INVERTED: invert the PWM signal polarity Example with optional PWM specifier for inverse polarity bl: backlight { - pwms = <&pwm 0 5000000 1>; + pwms = <&pwm 0 5000000 PWM_POLARITY_INVERTED>; pwm-names = "backlight"; }; |