Add the flag and corresponding documentation for PWM_USAGE_POWER. Cc: Rob Herring <robh+dt@xxxxxxxxxx> Signed-off-by: Clemens Gruber <clemens.gruber@xxxxxxxxxxxx> --- Documentation/devicetree/bindings/pwm/pwm.txt | 3 +++ include/dt-bindings/pwm/pwm.h | 1 + 2 files changed, 4 insertions(+) diff --git a/Documentation/devicetree/bindings/pwm/pwm.txt b/Documentation/devicetree/bindings/pwm/pwm.txt index 084886bd721e..fe3a28f887c0 100644 --- a/Documentation/devicetree/bindings/pwm/pwm.txt +++ b/Documentation/devicetree/bindings/pwm/pwm.txt @@ -46,6 +46,9 @@ period in nanoseconds. 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 +- PWM_USAGE_POWER: Only care about the power output of the signal. This + allows drivers (if supported) to optimize the signals, for example to + improve EMI and reduce current spikes. Example with optional PWM specifier for inverse polarity diff --git a/include/dt-bindings/pwm/pwm.h b/include/dt-bindings/pwm/pwm.h index ab9a077e3c7d..0d5a8f0c0035 100644 --- a/include/dt-bindings/pwm/pwm.h +++ b/include/dt-bindings/pwm/pwm.h @@ -11,5 +11,6 @@ #define _DT_BINDINGS_PWM_PWM_H #define PWM_POLARITY_INVERTED (1 << 0) +#define PWM_USAGE_POWER (1 << 1) #endif -- 2.31.1
