diff options
author | Bard Liao <bardliao@realtek.com> | 2018-03-22 09:12:33 +0300 |
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committer | Mark Brown <broonie@kernel.org> | 2018-04-16 21:24:32 +0300 |
commit | d59fb2856223219ccaa73bd2e96021f02ea5c266 (patch) | |
tree | 1ac82e6f0d6ac6ebdc9ae98742246bb7cc63508f /Documentation/devicetree/bindings/sound/rt5668.txt | |
parent | 29bc643ddd7efb741d07c8b2d9a4c3dd9228865b (diff) | |
download | linux-d59fb2856223219ccaa73bd2e96021f02ea5c266.tar.xz |
ASoC: rt5668: add rt5668B codec driver
This is the initial codec driver for rt5668b.
Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/sound/rt5668.txt')
-rw-r--r-- | Documentation/devicetree/bindings/sound/rt5668.txt | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/rt5668.txt b/Documentation/devicetree/bindings/sound/rt5668.txt new file mode 100644 index 000000000000..c88b96e7764b --- /dev/null +++ b/Documentation/devicetree/bindings/sound/rt5668.txt @@ -0,0 +1,50 @@ +RT5668B audio CODEC + +This device supports I2C only. + +Required properties: + +- compatible : "realtek,rt5668b" + +- reg : The I2C address of the device. + +Optional properties: + +- interrupts : The CODEC's interrupt output. + +- realtek,dmic1-data-pin + 0: dmic1 is not used + 1: using GPIO2 pin as dmic1 data pin + 2: using GPIO5 pin as dmic1 data pin + +- realtek,dmic1-clk-pin + 0: using GPIO1 pin as dmic1 clock pin + 1: using GPIO3 pin as dmic1 clock pin + +- realtek,jd-src + 0: No JD is used + 1: using JD1 as JD source + +- realtek,ldo1-en-gpios : The GPIO that controls the CODEC's LDO1_EN pin. + +Pins on the device (for linking into audio routes) for RT5668B: + + * DMIC L1 + * DMIC R1 + * IN1P + * HPOL + * HPOR + +Example: + +rt5668 { + compatible = "realtek,rt5668b"; + reg = <0x1a>; + interrupt-parent = <&gpio>; + interrupts = <TEGRA_GPIO(U, 6) GPIO_ACTIVE_HIGH>; + realtek,ldo1-en-gpios = + <&gpio TEGRA_GPIO(R, 2) GPIO_ACTIVE_HIGH>; + realtek,dmic1-data-pin = <1>; + realtek,dmic1-clk-pin = <1>; + realtek,jd-src = <1>; +}; |