Commit ed0f19b2 authored Jul 21, 2009 by John Bonesio Committed by Mark Brown Jul 22, 2009

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>

parent bca14657

sound/soc/fsl/mpc5200_psc_ac97.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -12,6 +12,7 @@
		#include <linux/module.h>
		#include <linux/of_device.h>
		#include <linux/of_platform.h>
		#include <linux/delay.h>

		#include <sound/pcm.h>
		#include <sound/pcm_params.h>
		@@ -112,7 +113,7 @@ static void psc_ac97_cold_reset(struct snd_ac97 *ac97)
		out_8(&regs->op1, MPC52xx_PSC_OP_RES);
		udelay(10);
		out_8(&regs->op0, MPC52xx_PSC_OP_RES);
		udelay(50);
		msleep(1);
		psc_ac97_warm_reset(ac97);
		}