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| author | Yitian Bu <buyitian@gmail.com> | 2015-10-02 15:18:41 +0800 |
|---|---|---|
| committer | Sasha Levin <sasha.levin@oracle.com> | 2015-10-27 22:13:25 -0400 |
| commit | b03abc8bb7dc34f5204511586fc12ce2e2bd2394 (patch) | |
| tree | e14b804065b0d0a63e8f149a980997beb4fd9dbc /sound | |
| parent | 8df654455e63a3fddb501709bdea349b0f351cee (diff) | |
| download | lwn-b03abc8bb7dc34f5204511586fc12ce2e2bd2394.tar.gz lwn-b03abc8bb7dc34f5204511586fc12ce2e2bd2394.zip | |
ASoC: dwc: correct irq clear method
[ Upstream commit 4873867e5f2bd90faad861dd94865099fc3140f3 ]
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@tangramtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/dwc/designware_i2s.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sound/soc/dwc/designware_i2s.c b/sound/soc/dwc/designware_i2s.c index 10e1b8ca42ed..8086f3da5de8 100644 --- a/sound/soc/dwc/designware_i2s.c +++ b/sound/soc/dwc/designware_i2s.c @@ -100,10 +100,10 @@ static inline void i2s_clear_irqs(struct dw_i2s_dev *dev, u32 stream) 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)); } } |