diff options
author | Shengjiu Wang <b02247@freescale.com> | 2014-04-28 10:40:10 +0800 |
---|---|---|
committer | Nitin Garg <nitin.garg@freescale.com> | 2014-08-27 18:28:45 -0500 |
commit | 7e6b20245ca7e8dff7d88861fbe707fe092b67c3 (patch) | |
tree | 641ce53f19d9a2592d15eaa29fed78a2f09f1a08 /Documentation | |
parent | 4e3ddb70a1518bae5b30a72e687947e152d9f528 (diff) |
ENGR00310878-2 ASoC: fsl_esai: cherry-pick from upstream and merge to mainline
cherry-picked commit is 43d24e76b69826ce32292f47060ad78cdd0197fa
Header of this commit is "ASoC: fsl_esai: Add ESAI CPU DAI driver", use upstream
driver to replace current one.
Merged feature is:
1. Move setting of PRRC and PCRC to the end of hw_params, and disable it in
shutdown function.
2. Merged the xrun handler with this commit.
3. Use dma init with NO_RESIDUE|NO_DT|COMPAT.
4. Add spba clock for ESAI
Signed-off-by: Shengjiu Wang <b02247@freescale.com>
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/devicetree/bindings/sound/fsl,esai.txt | 50 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/sound/fsl-easi.txt | 26 |
2 files changed, 50 insertions, 26 deletions
diff --git a/Documentation/devicetree/bindings/sound/fsl,esai.txt b/Documentation/devicetree/bindings/sound/fsl,esai.txt new file mode 100644 index 000000000000..d7b99fa637b5 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/fsl,esai.txt @@ -0,0 +1,50 @@ +Freescale Enhanced Serial Audio Interface (ESAI) Controller + +The Enhanced Serial Audio Interface (ESAI) provides a full-duplex serial port +for serial communication with a variety of serial devices, including industry +standard codecs, Sony/Phillips Digital Interface (S/PDIF) transceivers, and +other DSPs. It has up to six transmitters and four receivers. + +Required properties: + + - compatible : Compatible list, must contain "fsl,imx35-esai". + + - 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: + "core" The core clock used to access registers + "extal" The esai baud clock for esai controller used to derive + HCK, SCK and FS. + "fsys" The system clock derived from ahb clock used to derive + HCK, SCK and FS. + + - fsl,fifo-depth: The number of elements in the transmit and receive FIFOs. + This number is the maximum allowed value for TFCR[TFWM] or RFCR[RFWM]. + + - fsl,esai-synchronous: This is a boolean property. If present, indicating + that ESAI would work in the synchronous mode, which means all the settings + for Receiving would be duplicated from Transmition related registers. + +Example: + +esai: esai@02024000 { + compatible = "fsl,imx35-esai"; + reg = <0x02024000 0x4000>; + interrupts = <0 51 0x04>; + clocks = <&clks 208>, <&clks 118>, <&clks 208>; + clock-names = "core", "extal", "fsys"; + dmas = <&sdma 23 21 0>, <&sdma 24 21 0>; + dma-names = "rx", "tx"; + fsl,fifo-depth = <128>; + fsl,esai-synchronous; + status = "disabled"; +}; diff --git a/Documentation/devicetree/bindings/sound/fsl-easi.txt b/Documentation/devicetree/bindings/sound/fsl-easi.txt deleted file mode 100644 index b6196622accd..000000000000 --- a/Documentation/devicetree/bindings/sound/fsl-easi.txt +++ /dev/null @@ -1,26 +0,0 @@ -* Freescale Enhanced Serial Audio Interface (ESAI) - -Required properties: - - compatible: Should be "fsl,<chip>-esai". - - reg: Offset and length of the register set for the device. - - interrupts: Contains ESAI interrupt. - - clocks: Contains an entry for each entry in clock-names. - - fsl,fifo-depth: The number of elements in the transmit and receive FIFOs. - This number is the maximum allowed value for TFCR[TFWM]. - - fsl,esai-dma-events: The dma event of the esai, <a b>, a is the tx dma. - b is the rx dma. - - fsl,flags: <1> is for ESAI network mode, <2> is for ESAI SYNC mode. - <3> is for network and SYNC mode. - -Example: - -esai: esai@02024000 { - compatible = "fsl,imx6q-esai"; - reg = <0x02024000 0x4000>; - interrupts = <0 51 0x04>; - clocks = <&clks 118>; - fsl,fifo-depth = <128>; - fsl,esai-dma-events = <24 23>; - fsl,flags = <1>; - status = "disabled"; -}; |