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| author | Aaro Koskinen <aaro.koskinen@nokia.com> | 2009-05-20 16:58:30 +0300 |
|---|---|---|
| committer | Kevin Hilman <khilman@deeprootsystems.com> | 2009-11-11 14:42:26 -0800 |
| commit | bf07c9f2d869077cc918b4cda861eadac6df6283 (patch) | |
| tree | 2c79b779097afae9d091c1ccb7176046181e01cc | |
| parent | cb0cb2b815bf073dc0211ab224682a6caf6c89ce (diff) | |
| download | talos-obmc-linux-bf07c9f2d869077cc918b4cda861eadac6df6283.tar.gz talos-obmc-linux-bf07c9f2d869077cc918b4cda861eadac6df6283.zip | |
OMAP: PM: Clear DMA channel state after a wakeup
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>
| -rw-r--r-- | arch/arm/plat-omap/dma.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c index 1b5216f1e78d..8836da32d63b 100644 --- a/arch/arm/plat-omap/dma.c +++ b/arch/arm/plat-omap/dma.c @@ -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); } /*----------------------------------------------------------------------------*/ |
