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authorMark Brown <broonie@kernel.org>2015-10-26 11:15:54 +0900
committerMark Brown <broonie@kernel.org>2015-10-26 11:15:54 +0900
commit7c9c29eefa8ba503a34bac4ca4fb27083b78b726 (patch)
treeeb3bb499ebd185341f2b8266757c572fe42766cc /Documentation/devicetree/bindings/sound/tdm-slot.txt
parent32b88194f71d6ae7768a29f87fbba454728273ee (diff)
parent4922e7a1b767fcf6f29ce121ad74e424f4045eff (diff)
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linux-7c9c29eefa8ba503a34bac4ca4fb27083b78b726.tar.xz
Merge tag 'asoc-v4.3-rc2' into asoc-next
ASoC: Updates for v4.4 A first batch of updates targetted at v4.4. There are no substantial core fixes here, the biggest block of changes is updates to the rcar drivers and the addition of a CODEC driver for the AK4613. # gpg: Signature made Fri 25 Sep 2015 05:37:06 KST using RSA key ID 5D5487D0 # gpg: key CD7BEEBC: no public key for trusted key - skipped # gpg: key CD7BEEBC marked as ultimately trusted # gpg: key AF88CD16: no public key for trusted key - skipped # gpg: key AF88CD16 marked as ultimately trusted # gpg: key 16005C11: no public key for trusted key - skipped # gpg: key 16005C11 marked as ultimately trusted # gpg: key 5621E907: no public key for trusted key - skipped # gpg: key 5621E907 marked as ultimately trusted # gpg: key 5C6153AD: no public key for trusted key - skipped # gpg: key 5C6153AD marked as ultimately trusted # gpg: Good signature from "Mark Brown <broonie@sirena.org.uk>" # gpg: aka "Mark Brown <broonie@debian.org>" # gpg: aka "Mark Brown <broonie@kernel.org>" # gpg: aka "Mark Brown <broonie@tardis.ed.ac.uk>" # gpg: aka "Mark Brown <broonie@linaro.org>" # gpg: aka "Mark Brown <Mark.Brown@linaro.org>"
Diffstat (limited to 'Documentation/devicetree/bindings/sound/tdm-slot.txt')
-rw-r--r--Documentation/devicetree/bindings/sound/tdm-slot.txt11
1 files changed, 10 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/sound/tdm-slot.txt b/Documentation/devicetree/bindings/sound/tdm-slot.txt
index 6a2c84247f91..34cf70e2cbc4 100644
--- a/Documentation/devicetree/bindings/sound/tdm-slot.txt
+++ b/Documentation/devicetree/bindings/sound/tdm-slot.txt
@@ -4,11 +4,15 @@ This specifies audio DAI's TDM slot.
TDM slot properties:
dai-tdm-slot-num : Number of slots in use.
-dai-tdm-slot-width : Width in bits for each slot.
+dai-tdm-slot-width : Width in bits for each slot.
+dai-tdm-slot-tx-mask : Transmit direction slot mask, optional
+dai-tdm-slot-rx-mask : Receive direction slot mask, optional
For instance:
dai-tdm-slot-num = <2>;
dai-tdm-slot-width = <8>;
+ dai-tdm-slot-tx-mask = <0 1>;
+ dai-tdm-slot-rx-mask = <1 0>;
And for each spcified driver, there could be one .of_xlate_tdm_slot_mask()
to specify a explicit mapping of the channels and the slots. If it's absent
@@ -18,3 +22,8 @@ tx and rx masks.
For snd_soc_of_xlate_tdm_slot_mask(), the tx and rx masks will use a 1 bit
for an active slot as default, and the default active bits are at the LSB of
the masks.
+
+The explicit masks are given as array of integers, where the first
+number presents bit-0 (LSB), second presents bit-1, etc. Any non zero
+number is considered 1 and 0 is 0. snd_soc_of_xlate_tdm_slot_mask()
+does not do anything, if either mask is set non zero value.