diff options
Diffstat (limited to 'Documentation')
4 files changed, 65 insertions, 4 deletions
diff --git a/Documentation/devicetree/bindings/sound/arndale.txt b/Documentation/devicetree/bindings/sound/arndale.txt new file mode 100644 index 000000000000..0e76946385ae --- /dev/null +++ b/Documentation/devicetree/bindings/sound/arndale.txt @@ -0,0 +1,24 @@ +Audio Binding for Arndale boards + +Required properties: +- compatible : Can be the following, + "samsung,arndale-rt5631" + +- samsung,audio-cpu: The phandle of the Samsung I2S controller +- samsung,audio-codec: The phandle of the audio codec + +Optional: +- samsung,model: The name of the sound-card + +Arndale Boards has many audio daughter cards, one of them is +rt5631/alc5631. Below example shows audio bindings for rt5631/ +alc5631 based codec. + +Example: + +sound { + compatible = "samsung,arndale-rt5631"; + + samsung,audio-cpu = <&i2s0> + samsung,audio-codec = <&rt5631>; +}; diff --git a/Documentation/devicetree/bindings/sound/rt5677.txt b/Documentation/devicetree/bindings/sound/rt5677.txt index 0701b834fc73..740ff771aa8b 100644 --- a/Documentation/devicetree/bindings/sound/rt5677.txt +++ b/Documentation/devicetree/bindings/sound/rt5677.txt @@ -27,6 +27,21 @@ Optional properties: Boolean. Indicate MIC1/2 input and LOUT1/2/3 outputs are differential, rather than single-ended. +- realtek,gpio-config + Array of six 8bit elements that configures GPIO. + 0 - floating (reset value) + 1 - pull down + 2 - pull up + +- realtek,jd1-gpio + Configures GPIO Mic Jack detection 1. + Select 0 ~ 3 as OFF, GPIO1, GPIO2 and GPIO3 respectively. + +- realtek,jd2-gpio +- realtek,jd3-gpio + Configures GPIO Mic Jack detection 2 and 3. + Select 0 ~ 3 as OFF, GPIO4, GPIO5 and GPIO6 respectively. + Pins on the device (for linking into audio routes): * IN1P @@ -56,4 +71,6 @@ rt5677 { realtek,pow-ldo2-gpio = <&gpio TEGRA_GPIO(V, 3) GPIO_ACTIVE_HIGH>; realtek,in1-differential = "true"; + realtek,gpio-config = /bits/ 8 <0 0 0 0 0 2>; /* pull up GPIO6 */ + realtek,jd2-gpio = <3>; /* Enables Jack detection for GPIO6 */ }; diff --git a/Documentation/devicetree/bindings/sound/samsung-i2s.txt b/Documentation/devicetree/bindings/sound/samsung-i2s.txt index 7386d444ada1..d188296bb6ec 100644 --- a/Documentation/devicetree/bindings/sound/samsung-i2s.txt +++ b/Documentation/devicetree/bindings/sound/samsung-i2s.txt @@ -6,10 +6,17 @@ Required SoC Specific Properties: - samsung,s3c6410-i2s: for 8/16/24bit stereo I2S. - samsung,s5pv210-i2s: for 8/16/24bit multichannel(5.1) I2S with secondary fifo, s/w reset control and internal mux for root clk src. - - samsung,exynos5420-i2s: for 8/16/24bit multichannel(7.1) I2S with - secondary fifo, s/w reset control, internal mux for root clk src and - TDM support. TDM (Time division multiplexing) is to allow transfer of - multiple channel audio data on single data line. + - samsung,exynos5420-i2s: for 8/16/24bit multichannel(5.1) I2S for + playback, sterio channel capture, secondary fifo using internal + or external dma, s/w reset control, internal mux for root clk src + and 7.1 channel TDM support for playback. TDM (Time division multiplexing) + is to allow transfer of multiple channel audio data on single data line. + - samsung,exynos7-i2s: with all the available features of exynos5 i2s, + exynos7 I2S has 7.1 channel TDM support for capture, secondary fifo + with only external dma and more no.of root clk sampling frequencies. + - samsung,exynos7-i2s1: I2S1 on previous samsung platforms supports + stereo channels. exynos7 i2s1 upgraded to 5.1 multichannel with + slightly modified bit offsets. - reg: physical base address of the controller and length of memory mapped region. diff --git a/Documentation/devicetree/bindings/sound/sgtl5000.txt b/Documentation/devicetree/bindings/sound/sgtl5000.txt index d556dcb8816b..0e5e4eb3ef1b 100644 --- a/Documentation/devicetree/bindings/sound/sgtl5000.txt +++ b/Documentation/devicetree/bindings/sound/sgtl5000.txt @@ -7,6 +7,17 @@ Required properties: - clocks : the clock provider of SYS_MCLK +- micbias-resistor-k-ohms : the bias resistor to be used in kOmhs + The resistor can take values of 2k, 4k or 8k. + If set to 0 it will be off. + If this node is not mentioned or if the value is unknown, then + micbias resistor is set to 4K. + +- micbias-voltage-m-volts : the bias voltage to be used in mVolts + The voltage can take values from 1.25V to 3V by 250mV steps + If this node is not mentionned or the value is unknown, then + the value is set to 1.25V. + - VDDA-supply : the regulator provider of VDDA - VDDIO-supply: the regulator provider of VDDIO @@ -21,6 +32,8 @@ codec: sgtl5000@0a { compatible = "fsl,sgtl5000"; reg = <0x0a>; clocks = <&clks 150>; + micbias-resistor-k-ohms = <2>; + micbias-voltage-m-volts = <2250>; VDDA-supply = <®_3p3v>; VDDIO-supply = <®_3p3v>; }; |