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authorMaciej S. Szmigiero <mail@maciej.szmigiero.name>2015-09-19 02:00:25 +0200
committerMark Brown <broonie@kernel.org>2015-10-22 18:40:47 +0200
commit50760cad9de969fe85b24465afe6396b8bbc6a3f (patch)
treed6cc0d7a8af1db0667cd2b6700d176245d236867 /Documentation
parentLinux 4.3-rc1 (diff)
downloadlinux-50760cad9de969fe85b24465afe6396b8bbc6a3f.tar.xz
linux-50760cad9de969fe85b24465afe6396b8bbc6a3f.zip
ASoC: fsl-asoc-card: add AC'97 support
Add AC'97 support to fsl-asoc-card using generic ASoC AC'97 CODEC. The SSI controller will silently enable any TX AC'97 slots that have their bits set in SLOTREQ received from CODEC and then will redirect some of playback samples there. That's why it is important to make sure that any of CODEC playback slots that can pull samples are set to slots 3/4 (standard PCM playback slots). Currently, this applies to S/PDIF slots as they were seen to pull samples sometimes even with S/PDIF output being disabled. Signed-off-by: Maciej Szmigiero <mail@maciej.szmigiero.name> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/sound/fsl-asoc-card.txt10
1 files changed, 6 insertions, 4 deletions
diff --git a/Documentation/devicetree/bindings/sound/fsl-asoc-card.txt b/Documentation/devicetree/bindings/sound/fsl-asoc-card.txt
index a96774c194c8..ce55c0a6f757 100644
--- a/Documentation/devicetree/bindings/sound/fsl-asoc-card.txt
+++ b/Documentation/devicetree/bindings/sound/fsl-asoc-card.txt
@@ -13,13 +13,15 @@ So having this generic sound card allows all Freescale SoC users to benefit
from the simplification of a new card support and the capability of the wide
sample rates support through ASRC.
-Note: The card is initially designed for those sound cards who use I2S and
- PCM DAI formats. However, it'll be also possible to support those non
- I2S/PCM type sound cards, such as S/PDIF audio and HDMI audio, as long
- as the driver has been properly upgraded.
+Note: The card is initially designed for those sound cards who use AC'97, I2S
+ and PCM DAI formats. However, it'll be also possible to support those non
+ AC'97/I2S/PCM type sound cards, such as S/PDIF audio and HDMI audio, as
+ long as the driver has been properly upgraded.
The compatible list for this generic sound card currently:
+ "fsl,imx-audio-ac97"
+
"fsl,imx-audio-cs42888"
"fsl,imx-audio-wm8962"