Re: [alsa-devel] [PATCH 12/20] OMAP: McBSP: Configure NO IDLE mode for DMA mode different of threshold

Tony and Jarkko,

On Thu, Jul 30, 2009 at 02:49:35PM +0200, Valentin Eduardo (Nokia-D/Helsinki) wrote:

Use dma mode property to configure NO IDLE or SMART IDLE of McBSPs.

Signed-off-by: Eduardo Valentin eduardo.valentin@nokia.com

arch/arm/plat-omap/mcbsp.c | 10 +++++++++- 1 files changed, 9 insertions(+), 1 deletions(-)

diff --git a/arch/arm/plat-omap/mcbsp.c b/arch/arm/plat-omap/mcbsp.c index 6c535b3..11cfcfe 100644 --- a/arch/arm/plat-omap/mcbsp.c +++ b/arch/arm/plat-omap/mcbsp.c @@ -376,7 +376,15 @@ int omap_mcbsp_request(unsigned int id)

syscon = OMAP_MCBSP_READ(mcbsp->io_base, SYSCON);
syscon &= ~(ENAWAKEUP | SIDLEMODE(0x03) | CLOCKACTIVITY(0x03));

• syscon |= (ENAWAKEUP | SIDLEMODE(0x02) | CLOCKACTIVITY(0x02));
  

• spin_lock_irq(&mcbsp->lock);
  

• if (mcbsp->dma_op_mode == MCBSP_DMA_MODE_THRESHOLD)
  

• 	syscon |= SIDLEMODE(0x02);
  

• else
  

• 	syscon |= SIDLEMODE(0x01);
  

• spin_unlock_irq(&mcbsp->lock);
  

• syscon |= (ENAWAKEUP | CLOCKACTIVITY(0x02));
  

Because of this piece of code that patch 0002 is using ifdefs.

OMAP_MCBSP_WRITE(mcbsp->io_base, SYSCON, syscon);

OMAP_MCBSP_WRITE(mcbsp->io_base, WAKEUPEN, WAKEUPEN_ALL);

-- 1.6.2.GIT