[PATCH] ASoC: simple-amplifier: Make gpio property optional
DORMANTno replies
From: Maxime Ripard <hidden>
Date: 2019-03-18 10:39:46
Also in:
alsa-devel, lkml
Subsystem:
open firmware and flattened device tree bindings, sound, sound - soc layer / dynamic audio power management (asoc), sound - soc layer / gpio audio amplifier, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Jaroslav Kysela, Takashi Iwai, Liam Girdwood, Mark Brown, Herve Codina, Linus Torvalds
From: Mylène Josserand <redacted> 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 <redacted> Signed-off-by: Maxime Ripard <redacted> --- Documentation/devicetree/bindings/sound/simple-amplifier.txt | 2 +- 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)
--
2.20.1