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Diffstat (limited to 'sound/soc/fsl/mpc5200_psc_ac97.c')
-rw-r--r--sound/soc/fsl/mpc5200_psc_ac97.c26
1 files changed, 20 insertions, 6 deletions
diff --git a/sound/soc/fsl/mpc5200_psc_ac97.c b/sound/soc/fsl/mpc5200_psc_ac97.c
index 11706c1..40acc8e 100644
--- a/sound/soc/fsl/mpc5200_psc_ac97.c
+++ b/sound/soc/fsl/mpc5200_psc_ac97.c
@@ -20,6 +20,7 @@
#include <asm/time.h>
#include <asm/delay.h>
+#include <asm/mpc52xx.h>
#include <asm/mpc52xx_psc.h>
#include "mpc5200_dma.h"
@@ -100,19 +101,32 @@ static void psc_ac97_warm_reset(struct snd_ac97 *ac97)
{
struct mpc52xx_psc __iomem *regs = psc_dma->psc_regs;
+ mutex_lock(&psc_dma->mutex);
+
out_be32(&regs->sicr, psc_dma->sicr | MPC52xx_PSC_SICR_AWR);
udelay(3);
out_be32(&regs->sicr, psc_dma->sicr);
+
+ mutex_unlock(&psc_dma->mutex);
}
static void psc_ac97_cold_reset(struct snd_ac97 *ac97)
{
struct mpc52xx_psc __iomem *regs = psc_dma->psc_regs;
- /* Do a cold reset */
- out_8(&regs->op1, MPC52xx_PSC_OP_RES);
- udelay(10);
- out_8(&regs->op0, MPC52xx_PSC_OP_RES);
+ mutex_lock(&psc_dma->mutex);
+ dev_dbg(psc_dma->dev, "cold reset\n");
+
+ mpc5200_psc_ac97_gpio_reset(psc_dma->id);
+
+ /* Notify the PSC that a reset has occurred */
+ out_be32(&regs->sicr, psc_dma->sicr | MPC52xx_PSC_SICR_ACRB);
+
+ /* Re-enable RX and TX */
+ out_8(&regs->command, MPC52xx_PSC_TX_ENABLE | MPC52xx_PSC_RX_ENABLE);
+
+ mutex_unlock(&psc_dma->mutex);
+
msleep(1);
psc_ac97_warm_reset(ac97);
}
@@ -258,7 +272,7 @@ static struct snd_soc_dai_driver psc_ac97_dai[] = {
* - Probe/remove operations
* - OF device match table
*/
-static int __devinit psc_ac97_of_probe(struct of_device *op,
+static int __devinit psc_ac97_of_probe(struct platform_device *op,
const struct of_device_id *match)
{
int rc;
@@ -288,7 +302,7 @@ static int __devinit psc_ac97_of_probe(struct of_device *op,
return 0;
}
-static int __devexit psc_ac97_of_remove(struct of_device *op)
+static int __devexit psc_ac97_of_remove(struct platform_device *op)
{
snd_soc_unregister_dais(&op->dev, ARRAY_SIZE(psc_ac97_dai));
return 0;
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