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ASoC: MPC5200: Increase the delay time between resets
Reset was failing with the original udelay(50) between the code in psc_ac97_cold_reset() and the call to psc_ac97_warm_reset(). Through testing it was found that a delay of 1ms was necessary for the cold_reset code to consistently complete successfully. Signed-off-by: John Bonesio <bones@secretlab.ca> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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@ -12,6 +12,7 @@
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#include <linux/module.h>
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#include <linux/of_device.h>
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#include <linux/of_platform.h>
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#include <linux/delay.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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@ -112,7 +113,7 @@ static void psc_ac97_cold_reset(struct snd_ac97 *ac97)
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out_8(®s->op1, MPC52xx_PSC_OP_RES);
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udelay(10);
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out_8(®s->op0, MPC52xx_PSC_OP_RES);
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udelay(50);
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msleep(1);
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psc_ac97_warm_reset(ac97);
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}
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