diff options
Diffstat (limited to 'drivers/dma/imx-sdma.c')
| -rw-r--r-- | drivers/dma/imx-sdma.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index c3d135afe66..248469b051b 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -403,6 +403,7 @@ static int sdma_run_channel(struct sdma_channel *sdmac) init_completion(&sdmac->done); + wmb(); __raw_writel(1 << channel, sdma->regs + SDMA_H_START); ret = wait_for_completion_timeout(&sdmac->done, HZ); @@ -713,11 +714,11 @@ static int sdma_config_channel(struct sdma_channel *sdmac) sdmac->shp_addr = 0; sdmac->per_addr = 0; - if (sdmac->event_id0) { - if (sdmac->event_id0 > 32) - return -EINVAL; + if (sdmac->event_id0) sdma_event_enable(sdmac, sdmac->event_id0); - } + + if (sdmac->event_id1) + sdma_event_enable(sdmac, sdmac->event_id1); switch (sdmac->peripheral_type) { case IMX_DMATYPE_DSP: @@ -739,10 +740,10 @@ static int sdma_config_channel(struct sdma_channel *sdmac) if (sdmac->event_id1) { sdmac->event_mask1 = 1 << (sdmac->event_id1 % 32); if (sdmac->event_id1 > 31) - sdmac->watermark_level |= 1 << 31; + sdmac->watermark_level |= 1 << 29; sdmac->event_mask0 = 1 << (sdmac->event_id0 % 32); if (sdmac->event_id0 > 31) - sdmac->watermark_level |= 1 << 30; + sdmac->watermark_level |= 1 << 28; } else { sdmac->event_mask0 = 1 << sdmac->event_id0; sdmac->event_mask1 = 1 << (sdmac->event_id0 - 32); @@ -809,6 +810,7 @@ out: static void sdma_enable_channel(struct sdma_engine *sdma, int channel) { + wmb(); __raw_writel(1 << channel, sdma->regs + SDMA_H_START); } |