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authorHans de Goede <hdegoede@redhat.com>2015-12-11 19:43:57 +0100
committerMark Brown <broonie@kernel.org>2015-12-12 23:03:47 +0000
commit405926276bfb316915c16e57a3943eb2cf4dd8fa (patch)
treeb9ba8c77f7245de6c253f8515f9c774b12798c8c /Documentation/devicetree
parente6415b485059af183873e907662a3cdeefacb58b (diff)
downloadlinux-405926276bfb316915c16e57a3943eb2cf4dd8fa.tar.bz2
ASoC: sun4i-codec: Add support for PA gpio pin
Add support for PA gpio pin for controlling an external amplifier as used on some Allwinner boards. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'Documentation/devicetree')
-rw-r--r--Documentation/devicetree/bindings/sound/sun4i-codec.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/sun4i-codec.txt b/Documentation/devicetree/bindings/sound/sun4i-codec.txt
index c92966bd5488..0dce690f78f5 100644
--- a/Documentation/devicetree/bindings/sound/sun4i-codec.txt
+++ b/Documentation/devicetree/bindings/sound/sun4i-codec.txt
@@ -14,6 +14,9 @@ Required properties:
- "apb": the parent APB clock for this controller
- "codec": the parent module clock
+Optional properties:
+- allwinner,pa-gpios: gpio to enable external amplifier
+
Example:
codec: codec@01c22c00 {
#sound-dai-cells = <0>;