diff options
| author |   Peter Ujfalusi <peter.ujfalusi@nokia.com> | 2009-11-22 10:11:05 -0800 |
|---|---|---|
| committer |   Tony Lindgren <tony@atomide.com> | 2009-11-22 10:24:32 -0800 |
| commit | eebfa9f239a21d9663af03b50958d4d0bb7ab1d9 (patch) | |
| tree | 693e33f735fdf9d32d1c5a12ccc84c4cd157ce8b /arch/arm/plat-omap/mcbsp.c | |
| parent | omap: iommu: reorganize (diff) | |
| download | linux-dev-eebfa9f239a21d9663af03b50958d4d0bb7ab1d9.tar.xz linux-dev-eebfa9f239a21d9663af03b50958d4d0bb7ab1d9.zip | |
omap: McBSP: Do not use extensive spin locks for dma_op_mode
The use of the spin lock, which supposed to protect the the
dma_op_mode causing "INFO: inconsistent lock state" on
playback start.
Remove the spin locks around the dma_op_mode, when it's
purpuse is to protect the dma_op_mode.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Acked-by: Jarkko Nikula <jhnikula@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/plat-omap/mcbsp.c')
| -rw-r--r-- | arch/arm/plat-omap/mcbsp.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/arch/arm/plat-omap/mcbsp.c b/arch/arm/plat-omap/mcbsp.c index 92770334d728..2cc1cc328bac 100644 --- a/arch/arm/plat-omap/mcbsp.c +++ b/arch/arm/plat-omap/mcbsp.c @@ -298,9 +298,7 @@ int omap_mcbsp_get_dma_op_mode(unsigned int id) } mcbsp = id_to_mcbsp_ptr(id); - spin_lock_irq(&mcbsp->lock); dma_op_mode = mcbsp->dma_op_mode; - spin_unlock_irq(&mcbsp->lock); return dma_op_mode; } @@ -318,7 +316,6 @@ static inline void omap34xx_mcbsp_request(struct omap_mcbsp *mcbsp) syscon = OMAP_MCBSP_READ(mcbsp->io_base, SYSCON); syscon &= ~(ENAWAKEUP | SIDLEMODE(0x03) | CLOCKACTIVITY(0x03)); - spin_lock_irq(&mcbsp->lock); if (mcbsp->dma_op_mode == MCBSP_DMA_MODE_THRESHOLD) { syscon |= (ENAWAKEUP | SIDLEMODE(0x02) | CLOCKACTIVITY(0x02)); @@ -327,7 +324,6 @@ static inline void omap34xx_mcbsp_request(struct omap_mcbsp *mcbsp) } else { syscon |= SIDLEMODE(0x01); } - spin_unlock_irq(&mcbsp->lock); OMAP_MCBSP_WRITE(mcbsp->io_base, SYSCON, syscon); } @@ -1145,9 +1141,7 @@ static ssize_t dma_op_mode_show(struct device *dev, ssize_t len = 0; const char * const *s; - spin_lock_irq(&mcbsp->lock); dma_op_mode = mcbsp->dma_op_mode; - spin_unlock_irq(&mcbsp->lock); for (s = &dma_op_modes[i]; i < ARRAY_SIZE(dma_op_modes); s++, i++) { if (dma_op_mode == i) |