[V4] ASoC: cs42xx8: add reset-gpios in binding document

Commit Message

Shengjiu Wang May 16, 2019, 11:34 a.m. UTC

Add reset-gpios property, which is optional.

Signed-off-by: Shengjiu Wang <[e-mail]>
---
Changes in V4
- use gpios instead of gpio

Changes in RESEND v3
- send updated binding document only

Changes in v3
- update binding document.

Changes in v2
- use devm_gpiod_get_optional instead of of_get_named_gpio

 Documentation/devicetree/bindings/sound/cs42xx8.txt | 6 ++++++
 1 file changed, 6 insertions(+)

Comments

Fabio Estevam May 16, 2019, 11:37 a.m. UTC | #1

On Thu, May 16, 2019 at 8:36 AM S.j. Wang <[e-mail]> wrote:

>  cs42888: codec@48 {
> @@ -25,4 +30,5 @@ cs42888: codec@48 {
>         VD-supply = <&reg_audio>;
>         VLS-supply = <&reg_audio>;
>         VLC-supply = <&reg_audio>;
> +       reset-gpios = <&pca9557_b 1 1>;

 reset-gpios = <&pca9557_b 1 GPIO_ACTIVE_LOW>;  please

Patch

diff --git a/Documentation/devicetree/bindings/sound/cs42xx8.txt b/Documentation/devicetree/bindings/sound/cs42xx8.txt
index 8619a156d038..0138ef559cc4 100644
--- a/Documentation/devicetree/bindings/sound/cs42xx8.txt
+++ b/Documentation/devicetree/bindings/sound/cs42xx8.txt
@@ -14,6 +14,11 @@  Required properties:
   - VA-supply, VD-supply, VLS-supply, VLC-supply: power supplies for the device,
     as covered in Documentation/devicetree/bindings/regulator/regulator.txt
 
+Optional properties:
+
+  - reset-gpios : a GPIO spec to define which pin is connected to the chip's
+    !RESET pin
+
 Example:
 
 cs42888: codec@48 {
@@ -25,4 +30,5 @@  cs42888: codec@48 {
 	VD-supply = <&reg_audio>;
 	VLS-supply = <&reg_audio>;
 	VLC-supply = <&reg_audio>;
+	reset-gpios = <&pca9557_b 1 1>;
 };