| Message ID | 1465895602-31008-15-git-send-email-boris.brezillon@free-electrons.com |
|---|---|
| State | Accepted |
| Headers | show |
On Tue, Jun 14, 2016 at 11:13:22AM +0200, Boris Brezillon wrote: > Document the pwm-dutycycle-unit and pwm-dutycycle-range properties. > > Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> > Acked-by: Brian Norris <briannorris@chromium.org> > --- > .../devicetree/bindings/regulator/pwm-regulator.txt | 19 +++++++++++++++++++ > 1 file changed, 19 insertions(+) Acked-by: Rob Herring <robh@kernel.org> -- To unsubscribe from this list: send the line "unsubscribe linux-pwm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Tue, Jun 14, 2016 at 11:13:22AM +0200, Boris Brezillon wrote: > Document the pwm-dutycycle-unit and pwm-dutycycle-range properties. Acked-by: Mark Brown <broonie@kernel.org>
diff --git a/Documentation/devicetree/bindings/regulator/pwm-regulator.txt b/Documentation/devicetree/bindings/regulator/pwm-regulator.txt index ed936f0..9fbc7b1 100644 --- a/Documentation/devicetree/bindings/regulator/pwm-regulator.txt +++ b/Documentation/devicetree/bindings/regulator/pwm-regulator.txt @@ -34,6 +34,18 @@ Only required for Voltage Table Mode: First cell is voltage in microvolts (uV) Second cell is duty-cycle in percent (%) +Optional properties for Continuous mode: +- pwm-dutycycle-unit: Integer value encoding the duty cycle unit. If not + defined, <100> is assumed, meaning that + pwm-dutycycle-range contains values expressed in + percent. + +- pwm-dutycycle-range: Should contain 2 entries. The first entry is encoding + the dutycycle for regulator-min-microvolt and the + second one the dutycycle for regulator-max-microvolt. + Duty cycle values are expressed in pwm-dutycycle-unit. + If not defined, <0 100> is assumed. + NB: To be clear, if voltage-table is provided, then the device will be used in Voltage Table Mode. If no voltage-table is provided, then the device will be used in Continuous Voltage Mode. @@ -48,6 +60,13 @@ Continuous Voltage Example: regulator-min-microvolt = <1016000>; regulator-max-microvolt = <1114000>; regulator-name = "vdd_logic"; + /* unit == per-mille */ + pwm-dutycycle-unit = <1000>; + /* + * Inverted PWM logic, and the duty cycle range is limited + * to 30%-70%. + */ + pwm-dutycycle-range <700 300>; /* */ }; Voltage Table Example: