linux-kernel - [PATCH v1 1/3] dt-bindings: add regulator vibrator documentation

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Message-ID: <20200429081759.26964-2-Xing.Zhang@mediatek.com>
Date:   Wed, 29 Apr 2020 16:17:58 +0800
From:   Xing Zhang <Xing.Zhang@...iatek.com>
To:     Matthias Brugger <matthias.bgg@...il.com>,
        Jacek Anaszewski <jacek.anaszewski@...il.com>,
        Pavel Machek <pavel@....cz>, Dan Murphy <dmurphy@...com>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <linux-leds@...r.kernel.org>,
        Xing Zhang <xing.zhang@...iatek.com>
Subject: [PATCH v1 1/3] dt-bindings: add regulator vibrator documentation

From: Xing Zhang <xing.zhang@...iatek.com>

Add the DT binding documentation for regulator vibrator

Change-Id: I6a2350b1bac46cf90d6122c6de6cfecddb696928
Signed-off-by: Xing Zhang <xing.zhang@...iatek.com>
---
 .../bindings/leds/regulator-vibrator.txt      | 39 +++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/leds/regulator-vibrator.txt

diff --git a/Documentation/devicetree/bindings/leds/regulator-vibrator.txt b/Documentation/devicetree/bindings/leds/regulator-vibrator.txt
new file mode 100644
index 000000000000..8f45d3ed13bd
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/regulator-vibrator.txt
@@ -0,0 +1,39 @@
+* Regulator vibrator device tree bindings
+
+Required Properties:
+ - compatible : Should be "regulator-vibrator"
+ - vibr-supply : Power supply to the vibrator.
+	[*] refer Documentation/devicetree/bindings/regulator/regulator.txt
+
+ - max-volt : The maximum voltage value supplied to the vibrator regulator.
+		[The unit of the voltage is a micro]
+
+ - min-volt : The minimum voltage value supplied to the vibrator regulator.
+		[The unit of the voltage is a micro]
+
+Optional properties:
+ - min-limit : Set the minimum time in ms for vibrator , default is 15ms,
+		if user request duration is smaller, this value will be used instead.
+		the default value comes from the smallest unit that can be sensed.
+
+ - max-limit : Set the maximum time in ms for vibrator.
+		if not set, it means no max limitation.
+
+Example:
+
+	mt6359_vibr_ldo_reg: ldo_vibr {
+		regulator-name = "vibr";
+		regulator-min-microvolt = <1200000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-enable-ramp-delay = <240>;
+	};
+
+	regulator_vibrator {
+		compatible = "regulator-vibrator";
+		min-volt = <2300000>;
+		max-volt = <3200000>;
+		max-limit = <15000>;
+		min-limit = <15>;
+		vib-supply = <&mt6359_vibr_ldo_reg>;
+	};
+
-- 
2.18.0