From ed0f19b23754dc24f9a2d3c266a36277410f4686 Mon Sep 17 00:00:00 2001
From: John Bonesio <bones@secretlab.ca>
Date: Tue, 21 Jul 2009 13:15:40 -0700
Subject: 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>
---
 sound/soc/fsl/mpc5200_psc_ac97.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'sound/soc/fsl/mpc5200_psc_ac97.c')

diff --git a/sound/soc/fsl/mpc5200_psc_ac97.c b/sound/soc/fsl/mpc5200_psc_ac97.c
index 7eb549985d49..c4ae3e096bb9 100644
--- a/sound/soc/fsl/mpc5200_psc_ac97.c
+++ b/sound/soc/fsl/mpc5200_psc_ac97.c
@@ -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);
 }
 
-- 
cgit v1.2.3