diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-07-09 09:59:43 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-07-09 09:59:43 -0700 |
commit | 4cdd5f9186bbe80306e76f11da7ecb0b9720433c (patch) | |
tree | 23c2f39933cd8253a65385eab00405beaf602f01 /Documentation | |
parent | 2d41ef5432b76ae90dc0db93026f1d981f874ec4 (diff) | |
parent | 0dcb4efb1095d0a1f5f681c2b94e98b009cc5d77 (diff) |
Merge tag 'sound-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"Many updates in this development cycle are found in ASoC where it got
a wide range of changes for the continued refactoring.
Some highlights are below.
ASoC:
- Continued refactoring work by Morimoto-san toward the full
componentization; the changes are seen allover the places
- Support for force disconnecting muxes in DAPM
- Continued development of ASoC Intel SOF stuff
- New drivers for Cirrus Logic CS47L35, CS47L85 and CS47L90, Conexant
CX2072X, Realtek RT1011 and RT1308
HD-audio:
- More fixes and adjustments for ASoC SOF HD-audio
- Fix for resume problem on some Realtek codecs
USB-audio:
- A few fixes for the issues reported by syzbot USB fuzzer
- Fix for UAC2 extension unit parser
- Quirks for Line6 Helix, Emgaic Unitor 8
FireWire:
- Lots of code refactoring and fixes in most of its components"
* tag 'sound-5.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (626 commits)
ALSA: firewire-lib: code refactoring for local variables
ALSA: firewire-lib: code refactoring for post operation to data block counter
ALSA: firewire-lib: code refactoring for error path of parser for CIP header
ALSA: firewire-lib: fix different data block counter between probed event and transferred isochronous packet
ALSA: firewire-lib: fix initial value of data block count for IR context without CIP_DBC_IS_END_EVENT
ALSA: firewire-lib/fireface: fix initial value of data block counter for IR context with CIP_NO_HEADER
ALSA: firewire-lib: fix invalid length of rx packet payload for tracepoint events
ALSA: usb-audio: fix Line6 Helix audio format rates
firewire-motu: fix wrong reference count for stream functionality at error path of rawmidi interface
ALSA: firewire-digi00x: fix wrong reference count for stream functionality at error path of rawmidi interface
ALSA: dice: fix wrong reference count for stream functionality at error path of rawmidi interface
ALSA: oxfw: fix wrong reference count for stream functionality at error path of rawmidi interface
ALSA: fireworks: fix wrong reference count for stream functionality at error path of rawmidi interface
ALSA: bebob: fix wrong reference count for stream functionality at error path of rawmidi interface
ASoC: SOF: Intel: implement runtime idle for CNL/APL
ASoC: SOF: add runtime idle callback
ASoC: hdac_hdmi: report codec link up/down status to bus
ASoC: SOF: debug: fix possible memory leak in sof_dfsentry_write()
ASoC: sunxi: sun50i-codec-analog: Add earpiece
ASoC: rt5665: remove redundant assignment to variable idx
...
Diffstat (limited to 'Documentation')
15 files changed, 444 insertions, 91 deletions
diff --git a/Documentation/devicetree/bindings/media/st,stm32-dcmi.txt b/Documentation/devicetree/bindings/media/st,stm32-dcmi.txt index 249790a93017..3122ded82eb4 100644 --- a/Documentation/devicetree/bindings/media/st,stm32-dcmi.txt +++ b/Documentation/devicetree/bindings/media/st,stm32-dcmi.txt @@ -11,7 +11,7 @@ Required properties: - clock-names: must contain "mclk", which is the DCMI peripherial clock - pinctrl: the pincontrol settings to configure muxing properly for pins that connect to DCMI device. - See Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.txt. + See Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.yaml. - dmas: phandle to DMA controller node, see Documentation/devicetree/bindings/dma/stm32-dma.txt - dma-names: must contain "tx", which is the transmit channel from DCMI to DMA diff --git a/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-i2s.yaml b/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-i2s.yaml new file mode 100644 index 000000000000..eb3992138eec --- /dev/null +++ b/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-i2s.yaml @@ -0,0 +1,132 @@ +# SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/allwinner,sun4i-a10-i2s.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Allwinner A10 I2S Controller Device Tree Bindings + +maintainers: + - Chen-Yu Tsai <wens@csie.org> + - Maxime Ripard <maxime.ripard@bootlin.com> + +properties: + "#sound-dai-cells": + const: 0 + + compatible: + oneOf: + - const: allwinner,sun4i-a10-i2s + - const: allwinner,sun6i-a31-i2s + - const: allwinner,sun8i-a83t-i2s + - const: allwinner,sun8i-h3-i2s + - const: allwinner,sun50i-a64-codec-i2s + - items: + - const: allwinner,sun50i-a64-i2s + - const: allwinner,sun8i-h3-i2s + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + items: + - description: Bus Clock + - description: Module Clock + + clock-names: + items: + - const: apb + - const: mod + + # Even though it only applies to subschemas under the conditionals, + # not listing them here will trigger a warning because of the + # additionalsProperties set to false. + dmas: true + dma-names: true + resets: + maxItems: 1 + +allOf: + - if: + properties: + compatible: + contains: + enum: + - allwinner,sun6i-a31-i2s + - allwinner,sun8i-a83t-i2s + - allwinner,sun8i-h3-i2s + - allwinner,sun50i-a64-codec-i2s + + then: + required: + - resets + + - if: + properties: + compatible: + contains: + const: allwinner,sun8i-a83t-i2s + + then: + properties: + dmas: + minItems: 1 + maxItems: 2 + items: + - description: RX DMA Channel + - description: TX DMA Channel + description: + Some controllers cannot receive but can only transmit + data. In such a case, the RX DMA channel is to be omitted. + + dma-names: + oneOf: + - items: + - const: rx + - const: tx + - const: tx + description: + Some controllers cannot receive but can only transmit + data. In such a case, the RX name is to be omitted. + + else: + properties: + dmas: + items: + - description: RX DMA Channel + - description: TX DMA Channel + + dma-names: + items: + - const: rx + - const: tx + +required: + - "#sound-dai-cells" + - compatible + - reg + - interrupts + - clocks + - clock-names + - dmas + - dma-names + +additionalProperties: false + +examples: + - | + i2s0: i2s@1c22400 { + #sound-dai-cells = <0>; + compatible = "allwinner,sun4i-a10-i2s"; + reg = <0x01c22400 0x400>; + interrupts = <0 16 4>; + clocks = <&apb0_gates 3>, <&i2s0_clk>; + clock-names = "apb", "mod"; + dmas = <&dma 0 3>, <&dma 0 3>; + dma-names = "rx", "tx"; + }; + +... diff --git a/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-spdif.yaml b/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-spdif.yaml new file mode 100644 index 000000000000..e0284d8c3b63 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-spdif.yaml @@ -0,0 +1,120 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/allwinner,sun4i-a10-spdif.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Allwinner A10 S/PDIF Controller Device Tree Bindings + +maintainers: + - Chen-Yu Tsai <wens@csie.org> + - Liam Girdwood <lgirdwood@gmail.com> + - Mark Brown <broonie@kernel.org> + - Maxime Ripard <maxime.ripard@bootlin.com> + +properties: + "#sound-dai-cells": + const: 0 + + compatible: + oneOf: + - const: allwinner,sun4i-a10-spdif + - const: allwinner,sun6i-a31-spdif + - const: allwinner,sun8i-h3-spdif + - const: allwinner,sun50i-h6-spdif + - items: + - const: allwinner,sun8i-a83t-spdif + - const: allwinner,sun8i-h3-spdif + - items: + - const: allwinner,sun50i-a64-spdif + - const: allwinner,sun8i-h3-spdif + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + items: + - description: Bus Clock + - description: Module Clock + + clock-names: + items: + - const: apb + - const: spdif + + # Even though it only applies to subschemas under the conditionals, + # not listing them here will trigger a warning because of the + # additionalsProperties set to false. + dmas: true + dma-names: true + resets: + maxItems: 1 + +allOf: + - if: + properties: + compatible: + contains: + enum: + - allwinner,sun6i-a31-spdif + - allwinner,sun8i-h3-spdif + + then: + required: + - resets + + - if: + properties: + compatible: + contains: + const: allwinner,sun8i-h3-spdif + + then: + properties: + dmas: + description: TX DMA Channel + + dma-names: + const: tx + + else: + properties: + dmas: + items: + - description: RX DMA Channel + - description: TX DMA Channel + + dma-names: + items: + - const: rx + - const: tx + +required: + - "#sound-dai-cells" + - compatible + - reg + - interrupts + - clocks + - clock-names + - dmas + - dma-names + +additionalProperties: false + +examples: + - | + spdif: spdif@1c21000 { + #sound-dai-cells = <0>; + compatible = "allwinner,sun4i-a10-spdif"; + reg = <0x01c21000 0x40>; + interrupts = <13>; + clocks = <&apb0_gates 1>, <&spdif_clk>; + clock-names = "apb", "spdif"; + dmas = <&dma 0 2>, <&dma 0 2>; + dma-names = "rx", "tx"; + }; + +... diff --git a/Documentation/devicetree/bindings/sound/amlogic,axg-tdm-formatters.txt b/Documentation/devicetree/bindings/sound/amlogic,axg-tdm-formatters.txt index 3b94a715a0b9..8835a43edfbb 100644 --- a/Documentation/devicetree/bindings/sound/amlogic,axg-tdm-formatters.txt +++ b/Documentation/devicetree/bindings/sound/amlogic,axg-tdm-formatters.txt @@ -15,11 +15,15 @@ Required properties: * "lrclk" : sample clock * "lrclk_sel": sample clock input multiplexer -Example of TDMOUT_A on the A113 SoC: +Optional property: +- resets: phandle to the dedicated reset line of the tdm formatter. + +Example of TDMOUT_A on the S905X2 SoC: tdmout_a: audio-controller@500 { compatible = "amlogic,axg-tdmout"; reg = <0x0 0x500 0x0 0x40>; + resets = <&clkc_audio AUD_RESET_TDMOUT_A>; clocks = <&clkc_audio AUD_CLKID_TDMOUT_A>, <&clkc_audio AUD_CLKID_TDMOUT_A_SCLK>, <&clkc_audio AUD_CLKID_TDMOUT_A_SCLK_SEL>, diff --git a/Documentation/devicetree/bindings/sound/amlogic,g12a-tohdmitx.txt b/Documentation/devicetree/bindings/sound/amlogic,g12a-tohdmitx.txt new file mode 100644 index 000000000000..aa6c35570d31 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/amlogic,g12a-tohdmitx.txt @@ -0,0 +1,55 @@ +* Amlogic HDMI Tx control glue + +Required properties: +- compatible: "amlogic,g12a-tohdmitx" +- reg: physical base address of the controller and length of memory + mapped region. +- #sound-dai-cells: should be 1. + +Example on the S905X2 SoC: + +tohdmitx: audio-controller@744 { + compatible = "amlogic,g12a-tohdmitx"; + reg = <0x0 0x744 0x0 0x4>; + #sound-dai-cells = <1>; +}; + +Example of an 'amlogic,axg-sound-card': + +sound { + compatible = "amlogic,axg-sound-card"; + +[...] + + dai-link-x { + sound-dai = <&tdmif_a>; + dai-format = "i2s"; + dai-tdm-slot-tx-mask-0 = <1 1>; + + codec-0 { + sound-dai = <&tohdmitx TOHDMITX_I2S_IN_A>; + }; + + codec-1 { + sound-dai = <&external_dac>; + }; + }; + + dai-link-y { + sound-dai = <&tdmif_c>; + dai-format = "i2s"; + dai-tdm-slot-tx-mask-0 = <1 1>; + + codec { + sound-dai = <&tohdmitx TOHDMITX_I2S_IN_C>; + }; + }; + + dai-link-z { + sound-dai = <&tohdmitx TOHDMITX_I2S_OUT>; + + codec { + sound-dai = <&hdmi_tx>; + }; + }; +}; diff --git a/Documentation/devicetree/bindings/sound/cs42xx8.txt b/Documentation/devicetree/bindings/sound/cs42xx8.txt index 8619a156d038..bbfe39347c20 100644 --- a/Documentation/devicetree/bindings/sound/cs42xx8.txt +++ b/Documentation/devicetree/bindings/sound/cs42xx8.txt @@ -14,6 +14,11 @@ Required properties: - VA-supply, VD-supply, VLS-supply, VLC-supply: power supplies for the device, as covered in Documentation/devicetree/bindings/regulator/regulator.txt +Optional properties: + + - reset-gpios : a GPIO spec to define which pin is connected to the chip's + !RESET pin + Example: cs42888: codec@48 { @@ -25,4 +30,5 @@ cs42888: codec@48 { VD-supply = <®_audio>; VLS-supply = <®_audio>; VLC-supply = <®_audio>; + reset-gpios = <&pca9557_b 1 GPIO_ACTIVE_LOW>; }; diff --git a/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt b/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt index a58f79f5345c..c483dcec01f8 100644 --- a/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt +++ b/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt @@ -44,6 +44,9 @@ Optional properties: please refer to pinctrl-bindings.txt - fck_parent : Should contain a valid clock name which will be used as parent for the McASP fck +- auxclk-fs-ratio: When McASP is bus master indicates the ratio between AUCLK + and FS rate if applicable: + AUCLK rate = auxclk-fs-ratio * FS rate Optional GPIO support: If any McASP pin need to be used as GPIO then the McASP node must have: diff --git a/Documentation/devicetree/bindings/sound/madera.txt b/Documentation/devicetree/bindings/sound/madera.txt new file mode 100644 index 000000000000..5e669ce552f4 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/madera.txt @@ -0,0 +1,67 @@ +Cirrus Logic Madera class audio codecs + +This describes audio configuration bindings for these codecs. + +See also the core bindings for the parent MFD driver: +See Documentation/devicetree/bindings/mfd/madera.txt + +and defines for values used in these bindings: +include/dt-bindings/sound/madera.h + +These properties are all contained in the parent MFD node. + +Optional properties: + - cirrus,dmic-ref : Indicates how the MICBIAS pins have been externally + connected to DMICs on each input, one cell per input. + <IN1 IN2 IN3 ...> + A value of 0 indicates MICVDD and is the default, other values depend on the + codec: + For CS47L35 one of the CS47L35_DMIC_REF_xxx values + For all other codecs one of the MADERA_DMIC_REF_xxx values + Also see the datasheet for a description of the INn_DMIC_SUP field. + + - cirrus,inmode : A list of input mode settings for each input. A maximum of + 16 cells, with four cells per input in the order INnAL, INnAR INnBL INnBR. + For non-muxed inputs the first two cells for that input set the mode for + the left and right channel and the second two cells must be 0. + For muxed inputs the first two cells for that input set the mode of the + left and right A inputs and the second two cells set the mode of the left + and right B inputs. + Valid mode values are one of the MADERA_INMODE_xxx. If the array is shorter + than the number of inputs the unspecified inputs default to + MADERA_INMODE_DIFF. + + - cirrus,out-mono : Mono bit for each output, maximum of six cells if the + array is shorter outputs will be set to stereo. + + - cirrus,max-channels-clocked : Maximum number of channels that I2S clocks + will be generated for. Useful when clock master for systems where the I2S + bus has multiple data lines. + One cell for each AIF, use a value of zero for AIFs that should be handled + normally. + + - cirrus,pdm-fmt : PDM speaker data format, must contain 2 cells + (OUT5 and OUT6). See the PDM_SPKn_FMT field in the datasheet for a + description of this value. + The second cell is ignored for codecs that do not have OUT6. + + - cirrus,pdm-mute : PDM mute format, must contain 2 cells + (OUT5 and OUT6). See the PDM_SPKn_CTRL_1 register in the datasheet for a + description of this value. + The second cell is ignored for codecs that do not have OUT6. + +Example: + +cs47l35@0 { + compatible = "cirrus,cs47l35"; + + cirrus,dmic-ref = <0 0 CS47L35_DMIC_REF_MICBIAS1B 0>; + cirrus,inmode = < + MADERA_INMODE_DMIC MADERA_INMODE_DMIC /* IN1A digital */ + MADERA_INMODE_SE MADERA_INMODE_SE /* IN1B single-ended */ + MADERA_INMODE_DIFF MADERA_INMODE_DIFF /* IN2 differential */ + 0 0 /* not used on this codec */ + >; + cirrus,out-mono = <0 0 0 0 0 0>; + cirrus,max-channels-clocked = <2 0 0>; +}; diff --git a/Documentation/devicetree/bindings/sound/max98357a.txt b/Documentation/devicetree/bindings/sound/max98357a.txt index 28645a2ff885..4bce14ce806f 100644 --- a/Documentation/devicetree/bindings/sound/max98357a.txt +++ b/Documentation/devicetree/bindings/sound/max98357a.txt @@ -9,6 +9,10 @@ Optional properties: - sdmode-gpios : GPIO specifier for the chip's SD_MODE pin. If this option is not specified then driver does not manage the pin state (e.g. chip is always on). +- sdmode-delay : specify delay time for SD_MODE pin. + If this option is specified, which means it's required i2s clocks + ready before SD_MODE is unmuted in order to avoid the speaker pop noise. + It's observed that 5ms is sufficient. Example: diff --git a/Documentation/devicetree/bindings/sound/rt1011.txt b/Documentation/devicetree/bindings/sound/rt1011.txt new file mode 100644 index 000000000000..35a23e60d679 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/rt1011.txt @@ -0,0 +1,32 @@ +RT1011 Mono Class D Audio Amplifier + +This device supports I2C only. + +Required properties: + +- compatible : "realtek,rt1011". + +- reg : The I2C address of the device. This I2C address decide by + two input pins (ASEL1 and ASEL2). + ------------------------------------- + | ASEL2 | ASEL1 | Address | + ------------------------------------- + | 0 | 0 | 0x38 | + ------------------------------------- + | 0 | 1 | 0x39 | + ------------------------------------- + | 1 | 0 | 0x3a | + ------------------------------------- + | 1 | 1 | 0x3b | + ------------------------------------- + +Pins on the device (for linking into audio routes) for RT1011: + + * SPO + +Example: + +rt1011: codec@38 { + compatible = "realtek,rt1011"; + reg = <0x38>; +}; diff --git a/Documentation/devicetree/bindings/sound/rt1308.txt b/Documentation/devicetree/bindings/sound/rt1308.txt new file mode 100755 index 000000000000..2d46084afce4 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/rt1308.txt @@ -0,0 +1,17 @@ +RT1308 audio Amplifier + +This device supports I2C only. + +Required properties: + +- compatible : "realtek,rt1308". + +- reg : The I2C address of the device. + + +Example: + +rt1308: rt1308@10 { + compatible = "realtek,rt1308"; + reg = <0x10>; +}; diff --git a/Documentation/devicetree/bindings/sound/st,stm32-i2s.txt b/Documentation/devicetree/bindings/sound/st,stm32-i2s.txt index 58c341300552..cbf24bcd1b8d 100644 --- a/Documentation/devicetree/bindings/sound/st,stm32-i2s.txt +++ b/Documentation/devicetree/bindings/sound/st,stm32-i2s.txt @@ -18,7 +18,7 @@ Required properties: See Documentation/devicetree/bindings/dma/stm32-dma.txt. - dma-names: Identifier for each DMA request line. Must be "tx" and "rx". - pinctrl-names: should contain only value "default" - - pinctrl-0: see Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.txt + - pinctrl-0: see Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.yaml Optional properties: - resets: Reference to a reset controller asserting the reset controller diff --git a/Documentation/devicetree/bindings/sound/st,stm32-sai.txt b/Documentation/devicetree/bindings/sound/st,stm32-sai.txt index 3f4467ff0aa2..944743dd9212 100644 --- a/Documentation/devicetree/bindings/sound/st,stm32-sai.txt +++ b/Documentation/devicetree/bindings/sound/st,stm32-sai.txt @@ -41,7 +41,7 @@ SAI subnodes required properties: "tx": if sai sub-block is configured as playback DAI "rx": if sai sub-block is configured as capture DAI - pinctrl-names: should contain only value "default" - - pinctrl-0: see Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.txt + - pinctrl-0: see Documentation/devicetree/bindings/pinctrl/st,stm32-pinctrl.yaml SAI subnodes Optional properties: - st,sync: specify synchronization mode. diff --git a/Documentation/devicetree/bindings/sound/sun4i-i2s.txt b/Documentation/devicetree/bindings/sound/sun4i-i2s.txt deleted file mode 100644 index 61e71c1729e0..000000000000 --- a/Documentation/devicetree/bindings/sound/sun4i-i2s.txt +++ /dev/null @@ -1,45 +0,0 @@ -* Allwinner A10 I2S controller - -The I2S bus (Inter-IC sound bus) is a serial link for digital -audio data transfer between devices in the system. - -Required properties: - -- compatible: should be one of the following: - - "allwinner,sun4i-a10-i2s" - - "allwinner,sun6i-a31-i2s" - - "allwinner,sun8i-a83t-i2s" - - "allwinner,sun8i-h3-i2s" - - "allwinner,sun50i-a64-codec-i2s" -- reg: physical base address of the controller and length of memory mapped - region. -- interrupts: should contain the I2S interrupt. -- dmas: DMA specifiers for tx and rx dma. See the DMA client binding, - Documentation/devicetree/bindings/dma/dma.txt -- dma-names: should include "tx" and "rx". -- clocks: a list of phandle + clock-specifer pairs, one for each entry in clock-names. -- clock-names: should contain the following: - - "apb" : clock for the I2S bus interface - - "mod" : module clock for the I2S controller -- #sound-dai-cells : Must be equal to 0 - -Required properties for the following compatibles: - - "allwinner,sun6i-a31-i2s" - - "allwinner,sun8i-a83t-i2s" - - "allwinner,sun8i-h3-i2s" - - "allwinner,sun50i-a64-codec-i2s" -- resets: phandle to the reset line for this codec - -Example: - -i2s0: i2s@1c22400 { - #sound-dai-cells = <0>; - compatible = "allwinner,sun4i-a10-i2s"; - reg = <0x01c22400 0x400>; - interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>; - clocks = <&apb0_gates 3>, <&i2s0_clk>; - clock-names = "apb", "mod"; - dmas = <&dma SUN4I_DMA_NORMAL 3>, - <&dma SUN4I_DMA_NORMAL 3>; - dma-names = "rx", "tx"; -}; diff --git a/Documentation/devicetree/bindings/sound/sunxi,sun4i-spdif.txt b/Documentation/devicetree/bindings/sound/sunxi,sun4i-spdif.txt deleted file mode 100644 index 0c64a209c2e9..000000000000 --- a/Documentation/devicetree/bindings/sound/sunxi,sun4i-spdif.txt +++ /dev/null @@ -1,42 +0,0 @@ -Allwinner Sony/Philips Digital Interface Format (S/PDIF) Controller - -The Allwinner S/PDIF audio block is a transceiver that allows the -processor to receive and transmit digital audio via an coaxial cable or -a fibre cable. -For now only playback is supported. - -Required properties: - - - compatible : should be one of the following: - - "allwinner,sun4i-a10-spdif": for the Allwinner A10 SoC - - "allwinner,sun6i-a31-spdif": for the Allwinner A31 SoC - - "allwinner,sun8i-h3-spdif": for the Allwinner H3 SoC - - - reg : Offset and length of the register set for the device. - - - interrupts : Contains the spdif interrupt. - - - dmas : Generic dma devicetree binding as described in - Documentation/devicetree/bindings/dma/dma.txt. - - - dma-names : Two dmas have to be defined, "tx" and "rx". - - - clocks : Contains an entry for each entry in clock-names. - - - clock-names : Includes the following entries: - "apb" clock for the spdif bus. - "spdif" clock for spdif controller. - - - resets : reset specifier for the ahb reset (A31 and newer only) - -Example: - -spdif: spdif@1c21000 { - compatible = "allwinner,sun4i-a10-spdif"; - reg = <0x01c21000 0x40>; - interrupts = <13>; - clocks = <&apb0_gates 1>, <&spdif_clk>; - clock-names = "apb", "spdif"; - dmas = <&dma 0 2>, <&dma 0 2>; - dma-names = "rx", "tx"; -}; |