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OMAP: PM: Clear DMA channel state after a wakeup

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Clear DMA channel states so that users can assume a known initial
state.

Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
This commit is contained in:
Aaro Koskinen 2009-05-20 16:58:30 +03:00 committed by Kevin Hilman
parent cb0cb2b815
commit bf07c9f2d8
1 changed files with 6 additions and 0 deletions
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6
arch/arm/plat-omap/dma.c
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@ -2358,6 +2358,8 @@ void omap_dma_global_context_save(void)
void omap_dma_global_context_restore(void)
{
int ch;
dma_write(omap_dma_global_context.dma_gcr, GCR);
dma_write(omap_dma_global_context.dma_ocp_sysconfig,
OCP_SYSCONFIG);
@ -2372,6 +2374,10 @@ void omap_dma_global_context_restore(void)
*/
if (cpu_is_omap34xx() && (omap_type() != OMAP2_DEVICE_TYPE_GP))
dma_write(0x3 , IRQSTATUS_L0);
for (ch = 0; ch < dma_chan_count; ch++)
if (dma_chan[ch].dev_id != -1)
omap_clear_dma(ch);
}
/*----------------------------------------------------------------------------*/