Add reset gpio control to support RESET PIN connected to gpio.
Signed-off-by: Steve Lee <[email protected]>
---
sound/soc/codecs/max98390.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/sound/soc/codecs/max98390.c b/sound/soc/codecs/max98390.c
index b392567c2b3e..5c6162701667 100644
--- a/sound/soc/codecs/max98390.c
+++ b/sound/soc/codecs/max98390.c
@@ -1022,6 +1022,7 @@ static int max98390_i2c_probe(struct i2c_client *i2c,
struct max98390_priv *max98390 = NULL;
struct i2c_adapter *adapter = to_i2c_adapter(i2c->dev.parent);
+ struct gpio_desc *reset_gpio;
ret = i2c_check_functionality(adapter,
I2C_FUNC_SMBUS_BYTE
@@ -1073,6 +1074,17 @@ static int max98390_i2c_probe(struct i2c_client *i2c,
return ret;
}
+ reset_gpio = devm_gpiod_get_optional(&i2c->dev,
+ "maxim,reset-gpios", GPIOD_OUT_LOW);
+
+ /* Power on device */
+ if (reset_gpio) {
+ usleep_range(1000, 2000);
+ /* bring out of reset */
+ gpiod_set_value_cansleep(reset_gpio, 1);
+ usleep_range(1000, 2000);
+ }
+
/* Check Revision ID */
ret = regmap_read(max98390->regmap,
MAX98390_R24FF_REV_ID, ®);
--
2.17.1
On Fri, Mar 11, 2022 at 10:29:05PM +0900, Steve Lee wrote:
> Add reset gpio control to support RESET PIN connected to gpio.
This doesn't apply against current code, please check and resend.
This adds support for the reset gpio binding.
Signed-off-by: Steve Lee <[email protected]>
---
Documentation/devicetree/bindings/sound/maxim,max98390.yaml | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/Documentation/devicetree/bindings/sound/maxim,max98390.yaml b/Documentation/devicetree/bindings/sound/maxim,max98390.yaml
index e5ac35280da3..4bf61fb6056a 100644
--- a/Documentation/devicetree/bindings/sound/maxim,max98390.yaml
+++ b/Documentation/devicetree/bindings/sound/maxim,max98390.yaml
@@ -31,6 +31,9 @@ properties:
minimum: 1
maximum: 8388607
+ reset-gpios:
+ maxItems: 1
+
required:
- compatible
- reg
@@ -39,6 +42,7 @@ additionalProperties: false
examples:
- |
+ #include <dt-bindings/gpio/gpio.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
@@ -47,5 +51,6 @@ examples:
reg = <0x38>;
maxim,temperature_calib = <1024>;
maxim,r0_calib = <100232>;
+ reset-gpios = <&gpio 9 GPIO_ACTIVE_LOW>;
};
};
--
2.17.1
On Sat, Mar 12, 2022 at 1:33 AM Mark Brown <[email protected]> wrote:
>
> On Fri, Mar 11, 2022 at 10:29:05PM +0900, Steve Lee wrote:
> > Add reset gpio control to support RESET PIN connected to gpio.
>
> This doesn't apply against current code, please check and resend.
I will check and resend patch.
On Fri, 11 Mar 2022 22:29:05 +0900, Steve Lee wrote:
> Add reset gpio control to support RESET PIN connected to gpio.
>
>
Applied to
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next
Thanks!
[1/2] ASoC: max98390: Add reset gpio control
commit: 397ff024960634962af93e9e2775fc0e4fe7de92
[2/2] ASoC: dt-bindings: max98390: add reset gpio bindings
commit: 68514c9f6aa676f98328844336fc4400244a8479
All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.
Please add any relevant lists and maintainers to the CCs when replying
to this mail.
Thanks,
Mark