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Date: Wed, 28 Oct 2015 14:52:35 +0100 From: Jiri Slaby <jslaby@...e.cz> To: stable@...r.kernel.org Cc: linux-kernel@...r.kernel.org, Yitian Bu <buyitian@...il.com>, Yitian Bu <yitian.bu@...gramtek.com>, Mark Brown <broonie@...nel.org>, Jiri Slaby <jslaby@...e.cz> Subject: [PATCH 3.12 044/123] ASoC: dwc: correct irq clear method From: Yitian Bu <buyitian@...il.com> 3.12-stable review patch. If anyone has any objections, please let me know. =============== 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@...gramtek.com> Signed-off-by: Mark Brown <broonie@...nel.org> Signed-off-by: Jiri Slaby <jslaby@...e.cz> --- sound/soc/dwc/designware_i2s.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/soc/dwc/designware_i2s.c b/sound/soc/dwc/designware_i2s.c index 2f6357578616..1b6cbbc95456 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)); } } -- 2.6.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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