linux-kernel - [PATCH v3 5/6] dt-bindings: mfd: da9062: add regulator gpio enable/disable documentation

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Date:   Fri, 29 Nov 2019 18:25:36 +0100
From:   Marco Felsch <m.felsch@...gutronix.de>
To:     support.opensource@...semi.com, lee.jones@...aro.org,
        robh+dt@...nel.org, linus.walleij@...aro.org,
        bgolaszewski@...libre.com, joel@....id.au, andrew@...id.au,
        lgirdwood@...il.com, broonie@...nel.org
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-gpio@...r.kernel.org, linux-aspeed@...ts.ozlabs.org,
        linux-arm-kernel@...ts.infradead.org, kernel@...gutronix.de
Subject: [PATCH v3 5/6] dt-bindings: mfd: da9062: add regulator gpio enable/disable documentation

At the gpio-based regulator enable/disable documentation. This property
can be applied to each subnode within the 'regulators' node so each
regulator can be configured differently.

Signed-off-by: Marco Felsch <m.felsch@...gutronix.de>
---
Changelog:
v3:
- adapt binding description

 Documentation/devicetree/bindings/mfd/da9062.txt | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/mfd/da9062.txt b/Documentation/devicetree/bindings/mfd/da9062.txt
index b9cccd4c3f76..863b1199d875 100644
--- a/Documentation/devicetree/bindings/mfd/da9062.txt
+++ b/Documentation/devicetree/bindings/mfd/da9062.txt
@@ -74,6 +74,13 @@ Sub-nodes:
     Attention: Sharing the same GPI for other purposes or across multiple
     regulators is possible but the polarity setting must equal.
 
+  - dlg,ena-sense-gpios : A GPIO reference to a local general purpose input,
+    the datasheet calls it GPI. The regulator sense the input signal and enable
+    or disable the regulator output. The regulator output is enabled if the
+    the signal is active else the output is disabled.
+    Attention: Sharing the same GPI for other purposes or across multiple
+    regulators is possible but the polarity setting must equal.
+
 - rtc : This node defines settings required for the Real-Time Clock associated
   with the DA9062. There are currently no entries in this binding, however
   compatible = "dlg,da9062-rtc" should be added if a node is created.
@@ -111,6 +118,7 @@ Example:
 				regulator-min-microvolt = <900000>;
 				regulator-max-microvolt = <3600000>;
 				regulator-boot-on;
+				dlg,ena-sense-gpios = <&pmic0 2 GPIO_ACTIVE_LOW>;
 			};
 		};
 	};
-- 
2.20.1