[PATCH v5 2/6] [media] ad5820: DT new optional field enable-gpios

Ricardo Ribalda Delgado
2018-10-02T07:32:32Z

Document new enable-gpio field. It can be used to disable the part
without turning down its regulator.

Cc: devicetree@vger.kernel.org
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
---
Documentation/devicetree/bindings/media/i2c/ad5820.txt | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/media/i2c/ad5820.txt b/Documentation/devicetree/bindings/media/i2c/ad5820.txt
index 5940ca11c021..9ccd96d3d5f0 100644
--- a/Documentation/devicetree/bindings/media/i2c/ad5820.txt
+++ b/Documentation/devicetree/bindings/media/i2c/ad5820.txt
@@ -8,6 +8,12 @@ Required Properties:

- VANA-supply: supply of voltage for VANA pin

+Optional properties:
+
+ - enable-gpios : GPIO spec for the XSHUTDOWN pin. Note that the polarity of
+the enable GPIO is the opposite of the XSHUTDOWN pin (asserting the enable
+GPIO deasserts the XSHUTDOWN signal and vice versa).
+
Example:

ad5820: coil@c {
@@ -15,5 +21,6 @@ Example:
reg = <0x0c>;

VANA-supply = <&vaux4>;
+ enable-gpios = <&msmgpio 26 GPIO_ACTIVE_HIGH>;
};

--
2.19.0