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authorLinus Torvalds <torvalds@linux-foundation.org>2014-10-10 22:13:25 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2014-10-10 22:13:25 -0400
commita2ce35273c2f1aa0dcddd8822681d64ee5f31852 (patch)
treefac2b4d526b6ca6657ea7c1b0a25efe76a3a0b5e /Documentation/devicetree/bindings/sound/fsl-sai.txt
parentbf65dea87e87c53ba4f97c6432761498bc977efd (diff)
parentfd1a2a90d08b0052fa52bd36cebd0592c9e537c2 (diff)
Merge tag 'sound-3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai: "This time it's a relatively calm update batch, but the amount isn't too small in the end. Here we go over some highlights: ALSA core: - One major change is the support of nonatomic PCM operations. This allows the trigger and other callbacks to call schedule(), which would be useful for mailbox type communications. Already some drivers (Digigram ones) have been converted to use together with threaded irqs as an example. - Improvement / fixes of DSD PCM format support HD-audio: - Large volume of rewrites are found in Realtek codec driver for converting Dell and HP quirks to generic forms. - Inverted dmic code cleanup from David. - Realtek COEF access has been optimized. - Now HD-audio jack infrastructure allows multiple callbacks, which fixes / simplifies the jack-dependent power controls on STAC/IDT and VIA codecs. - Many additional device-specific fixups as usual - A few deadcode cleanups, CA0132 code cleanup, etc. ASoC: - More componentization work from Lars-Peter, this time mainly cleaning up the suspend and bias level transition callbacks. - Real system support for the Intel drivers and a bunch of fixes and enhancements for the associated CODEC drivers, this is going to need a lot quirks over time due to the lack of any firmware description of the boards. - Jack detect support for simple card from Dylan Reid. - A bunch of small fixes and enhancements for the Freescale drivers. - New drivers for Analog Devices SSM4567, Cirrus Logic CS35L32, Everest Semiconductor ES8328 and Freescale cards using the ASRC in newer i.MX processors. - A few simple-card fixes, mostly cleanups but also a fix for interaction between GPIO 0 and simple-card. Misc: - Virtuoso / Oxygen updates by Clemens - USB-audio: Yamaha MOTIF XF MIDI port name fixes - Conversion of kernel messages to standard dev_*() in ctxfi driver" * tag 'sound-3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (251 commits) ASoC: mc13783: Ensure we only try to dereference valid of_nodes ASoC: rockchip-i2s: fix infinite loop in rockchip_snd_txctrl ALSA: hda - Add dock port support to Thinkpad L440 (71aa:501e) ALSA: Allow pass NULL dev for snd_pci_quirk_lookup() ASoC: imx-es8328: Fix of_node_put() call with uninitialized object ASoC: soc-pcm: fix sig_bits determination in soc_pcm_apply_msb() ASoC: simple-card: Initialize headphone and mic GPIO numbers ASoC: imx-es8328: Fix missing return code in imx_es8328_probe() ALSA: hda - Add dock support for Thinkpad T440 (17aa:2212) ALSA: usb: caiaq: check for cdev->n_streams > 1 ASoC: 88pm860x-codec: Fix possibly missing string termination ASoC: core: fix use after free in snd_soc_remove_platform() ASoC: soc-dapm: fix use after free ALSA: hda - Make the inv dmic handling for Realtek use generic parser ALSA: hda - Add Inverted Internal mic for Samsung Ativ book 9 (NP900X3G) ALSA: hda - Add inverted internal mic for Asus Aspire 4830T ASoC: Intel: byt-rt5640: fix coccinelle warnings ASoC: fsl_esai doc: Add "fsl,vf610-esai" as compatible string ASoC: da732x: Remove unnecessary KERN_ERR in pr_err() ASoC: simple-card: Fix detect gpio documentation. ...
Diffstat (limited to 'Documentation/devicetree/bindings/sound/fsl-sai.txt')
-rw-r--r--Documentation/devicetree/bindings/sound/fsl-sai.txt30
1 files changed, 22 insertions, 8 deletions
diff --git a/Documentation/devicetree/bindings/sound/fsl-sai.txt b/Documentation/devicetree/bindings/sound/fsl-sai.txt
index 0f4e23828190..4956b14d4b06 100644
--- a/Documentation/devicetree/bindings/sound/fsl-sai.txt
+++ b/Documentation/devicetree/bindings/sound/fsl-sai.txt
@@ -18,12 +18,26 @@ Required properties:
- pinctrl-names: Must contain a "default" entry.
- pinctrl-NNN: One property must exist for each entry in pinctrl-names.
See ../pinctrl/pinctrl-bindings.txt for details of the property values.
-- big-endian-regs: If this property is absent, the little endian mode will
- be in use as default, or the big endian mode will be in use for all the
- device registers.
-- big-endian-data: If this property is absent, the little endian mode will
- be in use as default, or the big endian mode will be in use for all the
- fifo data.
+- big-endian: Boolean property, required if all the FTM_PWM registers
+ are big-endian rather than little-endian.
+- lsb-first: Configures whether the LSB or the MSB is transmitted first for
+ the fifo data. If this property is absent, the MSB is transmitted first as
+ default, or the LSB is transmitted first.
+- fsl,sai-synchronous-rx: This is a boolean property. If present, indicating
+ that SAI will work in the synchronous mode (sync Tx with Rx) which means
+ both the transimitter and receiver will send and receive data by following
+ receiver's bit clocks and frame sync clocks.
+- fsl,sai-asynchronous: This is a boolean property. If present, indicating
+ that SAI will work in the asynchronous mode, which means both transimitter
+ and receiver will send and receive data by following their own bit clocks
+ and frame sync clocks separately.
+
+Note:
+- If both fsl,sai-asynchronous and fsl,sai-synchronous-rx are absent, the
+ default synchronous mode (sync Rx with Tx) will be used, which means both
+ transimitter and receiver will send and receive data by following clocks
+ of transimitter.
+- fsl,sai-asynchronous and fsl,sai-synchronous-rx are exclusive.
Example:
sai2: sai@40031000 {
@@ -38,6 +52,6 @@ sai2: sai@40031000 {
dma-names = "tx", "rx";
dmas = <&edma0 0 VF610_EDMA_MUXID0_SAI2_TX>,
<&edma0 0 VF610_EDMA_MUXID0_SAI2_RX>;
- big-endian-regs;
- big-endian-data;
+ big-endian;
+ lsb-first;
};