diff options
| author | Grant Likely <grant.likely@secretlab.ca> | 2009-07-02 19:57:25 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2009-07-03 11:41:47 +0200 |
| commit | 0827d6ba0b76be398a3c4298afd41f4965d2cdcb (patch) | |
| tree | e0346a66b752b89381103ee50008d532d207262e /sound/soc/fsl/mpc5200_dma.c | |
| parent | ASoC: Fix mpc5200-psc-ac97 to ensure the data ready bit is cleared (diff) | |
| download | linux-0827d6ba0b76be398a3c4298afd41f4965d2cdcb.tar.xz linux-0827d6ba0b76be398a3c4298afd41f4965d2cdcb.zip | |
ASoC: add locking to mpc5200-psc-ac97 driver
AC97 bus register read/write hooks need to provide locking, but the
mpc5200-psc-ac97 driver does not. This patch adds a mutex around
the register access routines.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Jon Smirl <jonsmirl@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/fsl/mpc5200_dma.c')
| -rw-r--r-- | sound/soc/fsl/mpc5200_dma.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sound/soc/fsl/mpc5200_dma.c b/sound/soc/fsl/mpc5200_dma.c index efec33a1c5bd..f0a2d4071998 100644 --- a/sound/soc/fsl/mpc5200_dma.c +++ b/sound/soc/fsl/mpc5200_dma.c @@ -456,6 +456,7 @@ int mpc5200_audio_dma_create(struct of_device *op) return -ENODEV; spin_lock_init(&psc_dma->lock); + mutex_init(&psc_dma->mutex); psc_dma->id = be32_to_cpu(*prop); psc_dma->irq = irq; psc_dma->psc_regs = regs; |