diff options
| author | Mylène Josserand <mylene.josserand@bootlin.com> | 2019-03-18 11:39:38 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-03-18 11:18:47 +0000 |
| commit | 2944d29d7c89573f9aa47083d105ff0243d5a125 (patch) | |
| tree | a1b9b19278b042cd4d6174cfc8379853fbfe469f | |
| parent | c4bce31c4982ddb866b6b6d0f7ca1cf039a3aded (diff) | |
| download | linux-2944d29d7c89573f9aa47083d105ff0243d5a125.tar.bz2 | |
ASoC: simple-amplifier: Make gpio property optional
Some amplifier may not have a GPIO to control the power, but instead simply
rely on the regulator to power up and down the amplifier.
In order to support those setups, let's make the GPIO optional.
Signed-off-by: Mylène Josserand <mylene.josserand@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | Documentation/devicetree/bindings/sound/simple-amplifier.txt | 2 | ||||
| -rw-r--r-- | sound/soc/codecs/simple-amplifier.c | 3 |
2 files changed, 3 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/sound/simple-amplifier.txt b/Documentation/devicetree/bindings/sound/simple-amplifier.txt index 7182ac4f1e65..b1b097cc9b68 100644 --- a/Documentation/devicetree/bindings/sound/simple-amplifier.txt +++ b/Documentation/devicetree/bindings/sound/simple-amplifier.txt @@ -2,9 +2,9 @@ Simple Amplifier Audio Driver Required properties: - compatible : "dioo,dio2125" or "simple-audio-amplifier" -- enable-gpios : the gpio connected to the enable pin of the simple amplifier Optional properties: +- enable-gpios : the gpio connected to the enable pin of the simple amplifier - VCC-supply : power supply for the device, as covered in Documentation/devicetree/bindings/regulator/regulator.txt diff --git a/sound/soc/codecs/simple-amplifier.c b/sound/soc/codecs/simple-amplifier.c index c07e8a80b4b7..351aa55c384e 100644 --- a/sound/soc/codecs/simple-amplifier.c +++ b/sound/soc/codecs/simple-amplifier.c @@ -89,7 +89,8 @@ static int simple_amp_probe(struct platform_device *pdev) return -ENOMEM; platform_set_drvdata(pdev, priv); - priv->gpiod_enable = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW); + priv->gpiod_enable = devm_gpiod_get_optional(dev, "enable", + GPIOD_OUT_LOW); if (IS_ERR(priv->gpiod_enable)) { err = PTR_ERR(priv->gpiod_enable); if (err != -EPROBE_DEFER) |