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authorDavid S. Miller <davem@davemloft.net>2012-11-17 22:00:43 -0500
committerDavid S. Miller <davem@davemloft.net>2012-11-17 22:00:43 -0500
commit67f4efdce7d85282fbd5832cddc80a07eb89b6d6 (patch)
tree9a1771ef13b27abdf8cf172e5b7556ab93e5c48c /sound/soc/mxs/mxs-saif.c
parentc53aa5058ad5ca8876a47d6639ad4d4f2c5ed584 (diff)
parentf4a75d2eb7b1e2206094b901be09adb31ba63681 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Minor line offset auto-merges. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'sound/soc/mxs/mxs-saif.c')
-rw-r--r--sound/soc/mxs/mxs-saif.c17
1 files changed, 13 insertions, 4 deletions
diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c
index aa037b292f3d..c294fbb523fc 100644
--- a/sound/soc/mxs/mxs-saif.c
+++ b/sound/soc/mxs/mxs-saif.c
@@ -523,16 +523,24 @@ static int mxs_saif_trigger(struct snd_pcm_substream *substream, int cmd,
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
/*
- * write a data to saif data register to trigger
- * the transfer
+ * write data to saif data register to trigger
+ * the transfer.
+ * For 24-bit format the 32-bit FIFO register stores
+ * only one channel, so we need to write twice.
+ * This is also safe for the other non 24-bit formats.
*/
__raw_writel(0, saif->base + SAIF_DATA);
+ __raw_writel(0, saif->base + SAIF_DATA);
} else {
/*
- * read a data from saif data register to trigger
- * the receive
+ * read data from saif data register to trigger
+ * the receive.
+ * For 24-bit format the 32-bit FIFO register stores
+ * only one channel, so we need to read twice.
+ * This is also safe for the other non 24-bit formats.
*/
__raw_readl(saif->base + SAIF_DATA);
+ __raw_readl(saif->base + SAIF_DATA);
}
master_saif->ongoing = 1;
@@ -812,3 +820,4 @@ module_platform_driver(mxs_saif_driver);
MODULE_AUTHOR("Freescale Semiconductor, Inc.");
MODULE_DESCRIPTION("MXS ASoC SAIF driver");
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:mxs-saif");