Commit 68b4506d authored by Yitian Bu's avatar Yitian Bu Committed by Luis Henriques

ASoC: dwc: correct irq clear method

commit 4873867e 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: default avatarYitian Bu <yitian.bu@tangramtek.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
Signed-off-by: default avatarLuis Henriques <luis.henriques@canonical.com>
parent 30b9c68b
......@@ -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));
}
}
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment