4.1-stable review patch. If anyone has any objections, please let me know.
------------------
From: Yitian Bu <buyitian@xxxxxxxxx>
commit 4873867e5f2bd90faad861dd94865099fc3140f3 upstream.
from Designware I2S datasheet, tx/rx XRUN irq is cleared by
reading register TOR/ROR, rather than by writing into them.
Signed-off-by: Yitian Bu <yitian.bu@xxxxxxxxxxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
sound/soc/dwc/designware_i2s.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/sound/soc/dwc/designware_i2s.c
+++ b/sound/soc/dwc/designware_i2s.c
@@ -131,10 +131,10 @@ static inline void i2s_clear_irqs(struct
if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
for (i = 0; i < 4; i++)
- i2s_write_reg(dev->i2s_base, TOR(i), 0);
+ i2s_read_reg(dev->i2s_base, TOR(i));
} else {
for (i = 0; i < 4; i++)
- i2s_write_reg(dev->i2s_base, ROR(i), 0);
+ i2s_read_reg(dev->i2s_base, ROR(i));
}
}
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