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authorFabio Estevam <fabio.estevam@freescale.com>2013-08-29 10:32:14 -0300
committerMark Brown <broonie@linaro.org>2013-09-01 16:29:27 +0100
commita90e6053baa61feed8b19a9f4cbec6b56479d1ba (patch)
tree971e9af46ac3f39a20e7fc8567401698043f89dc /sound
parentd6bead020d8f8bcaca5cdcb035250c44b21c93e7 (diff)
downloadlinux-a90e6053baa61feed8b19a9f4cbec6b56479d1ba.tar.bz2
ASoC: mxs-sgtl5000: Configure the dai_links as unidirectional
On a mx28 board, running "aplay -l" and "arecord -l" results in the following: $ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: mxssgtl5000 [mxs_sgtl5000], device 0: Playback sgtl5000-0 [] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: mxssgtl5000 [mxs_sgtl5000], device 1: Capture sgtl5000-1 [] Subdevices: 1/1 Subdevice #0: subdevice #0 $ arecord -l **** List of CAPTURE Hardware Devices **** card 0: mxssgtl5000 [mxs_sgtl5000], device 0: Playback sgtl5000-0 [] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: mxssgtl5000 [mxs_sgtl5000], device 1: Capture sgtl5000-1 [] Subdevices: 1/1 Subdevice #0: subdevice #0 ,which is not correct because we got a capture device listed in aplay and a playback device listed in arecord. On mx28 there are two serial audio interface ports (SAIF0 and SAIF1) and each one of them are unidirectional. Allow to specify a dai link as 'playback_only' or 'capture_only', which suits well for this case. After this change we can correctly report the capabilities as follows: $ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: mxssgtl5000 [mxs_sgtl5000], device 0: HiFi Playback sgtl5000-0 [] Subdevices: 1/1 Subdevice #0: subdevice #0 $ arecord -l **** List of CAPTURE Hardware Devices **** card 0: mxssgtl5000 [mxs_sgtl5000], device 1: HiFi Capture sgtl5000-1 [] Subdevices: 1/1 Subdevice #0: subdevice #0 Also tested playback and capture on the mx28evk board. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/mxs/mxs-sgtl5000.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/sound/soc/mxs/mxs-sgtl5000.c b/sound/soc/mxs/mxs-sgtl5000.c
index 1b134d72f120..ed8a51945306 100644
--- a/sound/soc/mxs/mxs-sgtl5000.c
+++ b/sound/soc/mxs/mxs-sgtl5000.c
@@ -91,11 +91,13 @@ static struct snd_soc_dai_link mxs_sgtl5000_dai[] = {
.stream_name = "HiFi Playback",
.codec_dai_name = "sgtl5000",
.ops = &mxs_sgtl5000_hifi_ops,
+ .playback_only = true,
}, {
.name = "HiFi Rx",
.stream_name = "HiFi Capture",
.codec_dai_name = "sgtl5000",
.ops = &mxs_sgtl5000_hifi_ops,
+ .capture_only = true,
},
};