-----Original Message----- From: sound-open-firmware-bounces@alsa-project.org [mailto:sound-open- firmware-bounces@alsa-project.org] On Behalf Of yan.wang@linux.intel.com Sent: Thursday, March 22, 2018 1:46 PM To: sound-open-firmware@alsa-project.org Cc: Yan Wang yan.wang@linux.intel.com Subject: [Sound-open-firmware] [PATCH] Add chan_size setting for host/link DMA IN/OUT on CNL.
From: Yan Wang yan.wang@linux.intel.com
"chan_size" is used for calculation of DMA register offset. It must be set otherwise only the first channel is available.
Signed-off-by: Yan Wang yan.wang@linux.intel.com
Acked-by: Keyon Jie yang.jie@linux.intel.com
Good finding.
Thanks, ~Keyon
src/platform/cannonlake/dma.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/src/platform/cannonlake/dma.c b/src/platform/cannonlake/dma.c index 59e0fc7..b77f1d2 100644 --- a/src/platform/cannonlake/dma.c +++ b/src/platform/cannonlake/dma.c @@ -136,6 +136,7 @@ static struct dma dma[] = { .base = GTW_HOST_IN_STREAM_BASE(0), .channels = 7, .irq = IRQ_EXT_HOST_DMA_IN_LVL3(0, 0),
.chan_size = GTW_HOST_IN_STREAM_SIZE,}, @@ -145,6 +146,7 @@ static struct dma dma[] = { .base = GTW_HOST_OUT_STREAM_BASE(0), .channels = 9, .irq = IRQ_EXT_HOST_DMA_OUT_LVL3(0, 0),
.chan_size = GTW_HOST_OUT_STREAM_SIZE,}, @@ -154,6 +156,7 @@ static struct dma dma[] = { .base = GTW_LINK_IN_STREAM_BASE(0), .channels = 9, .irq = IRQ_EXT_LINK_DMA_IN_LVL4(0, 0),
.chan_size = GTW_LINK_IN_STREAM_SIZE,}, @@ -163,6 +166,7 @@ static struct dma dma[] = { .base = GTW_LINK_OUT_STREAM_BASE(0), .channels = 7, .irq = IRQ_EXT_LINK_DMA_OUT_LVL4(0, 0),
.chan_size = GTW_LINK_OUT_STREAM_SIZE,},};
2.14.3
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