linux-kernel - [PATCH v3 2/2] dt-bindings: add devicetree bindings for st-pwm regulator

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Message-Id: <1411113739-1934-3-git-send-email-zyw@rock-chips.com>
Date:	Fri, 19 Sep 2014 16:02:19 +0800
From:	Chris Zhong <zyw@...k-chips.com>
To:	dianders@...omium.org, heiko@...ech.de
Cc:	linux-rockchip@...ts.infradead.org, lee.jones@...aro.org,
	broonie@...nel.org, Chris Zhong <zyw@...k-chips.com>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v3 2/2] dt-bindings: add devicetree bindings for st-pwm regulator

Document the st-pwm regulator

Signed-off-by: Chris Zhong <zyw@...k-chips.com>

---

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           |   29 ++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/regulator/pwm-regulator.txt

diff --git a/Documentation/devicetree/bindings/regulator/pwm-regulator.txt b/Documentation/devicetree/bindings/regulator/pwm-regulator.txt
new file mode 100644
index 0000000..eb46f7b
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/pwm-regulator.txt
@@ -0,0 +1,29 @@
+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 merbers 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-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <1016000>;
+		regulator-max-microvolt = <1114000>;
+		regulator-name = "vdd_logic";
+	};
-- 
1.7.9.5

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