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| Started by | Boris Brezillon <boris.brezillon@free-electrons.com> |
|---|---|
| First post | 2016-06-14 11:20 +0200 |
| Last post | 2016-06-17 00:30 +0200 |
| Articles | 2 — 2 participants |
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[PATCH v3 14/14] regulator: pwm: Document pwm-dutycycle-unit and pwm-dutycycle-range Boris Brezillon <boris.brezillon@free-electrons.com> - 2016-06-14 11:20 +0200
Re: [PATCH v3 14/14] regulator: pwm: Document pwm-dutycycle-unit and pwm-dutycycle-range Rob Herring <robh@kernel.org> - 2016-06-17 00:30 +0200
| From | Boris Brezillon <boris.brezillon@free-electrons.com> |
|---|---|
| Date | 2016-06-14 11:20 +0200 |
| Subject | [PATCH v3 14/14] regulator: pwm: Document pwm-dutycycle-unit and pwm-dutycycle-range |
| Message-ID | <rJSFQ-2Rh-21@gated-at.bofh.it> |
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(+) 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: -- 2.7.4
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| From | Rob Herring <robh@kernel.org> |
|---|---|
| Date | 2016-06-17 00:30 +0200 |
| Subject | Re: [PATCH v3 14/14] regulator: pwm: Document pwm-dutycycle-unit and pwm-dutycycle-range |
| Message-ID | <rKNXr-5C7-3@gated-at.bofh.it> |
| In reply to | #1421698 |
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>
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