diff options
Diffstat (limited to 'sound/soc/fsl/mpc5200_psc_ac97.c')
| -rw-r--r-- | sound/soc/fsl/mpc5200_psc_ac97.c | 26 |
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 11706c128c08..40acc8e2b1ca 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(®s->sicr, psc_dma->sicr | MPC52xx_PSC_SICR_AWR); udelay(3); out_be32(®s->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(®s->op1, MPC52xx_PSC_OP_RES); - udelay(10); - out_8(®s->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(®s->sicr, psc_dma->sicr | MPC52xx_PSC_SICR_ACRB); + + /* Re-enable RX and TX */ + out_8(®s->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; |