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[v7,2/2] dt-bindings: add devicetree bindings for pwm regulator

Message ID 1411871334-17692-3-git-send-email-zyw@rock-chips.com
State New, archived
Headers show

Commit Message

Chris Zhong Sept. 28, 2014, 2:28 a.m. UTC
Document the pwm regulator

Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>

---

Changes in v7:
- re-edit changelog

Changes in v6:
Adviced by Mark Rutland
- fix a spelling error

Changes in v4:
Adviced by Doug Anderson
- remove regulator-always-on and regulator-boot-on from the Example

Changes in v3:
Adviced by Doug Anderson
- update the Example

Changes in v2:
Adviced by Lee Jones
- rename the documentation
Adviced by Doug Anderson
- update the example
Adviced by Mark Rutland
- remove pwm-reg-period

 .../bindings/regulator/pwm-regulator.txt           |   27 ++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/regulator/pwm-regulator.txt
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Patch

diff --git a/Documentation/devicetree/bindings/regulator/pwm-regulator.txt b/Documentation/devicetree/bindings/regulator/pwm-regulator.txt
new file mode 100644
index 0000000..ce91f61
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/pwm-regulator.txt
@@ -0,0 +1,27 @@ 
+pwm regulator bindings
+
+Required properties:
+- compatible: Should be "pwm-regulator"
+- pwms: OF device-tree PWM specification (see PWM binding pwm.txt)
+- voltage-table: voltage and duty table, include 2 members in each set of
+  brackets, first one is voltage(unit: uv), the next is duty(unit: percent)
+
+Any property defined as part of the core regulator binding defined in
+regulator.txt can also be used.
+
+Example:
+	pwm_regulator {
+		compatible = "pwm-regulator;
+		pwms = <&pwm1 0 8448 0>;
+
+		voltage-table = <1114000 0>,
+				<1095000 10>,
+				<1076000 20>,
+				<1056000 30>,
+				<1036000 40>,
+				<1016000 50>;
+
+		regulator-min-microvolt = <1016000>;
+		regulator-max-microvolt = <1114000>;
+		regulator-name = "vdd_logic";
+	};