summaryrefslogtreecommitdiffstats
path: root/include/linux/dw_dmac.h
diff options
context:
space:
mode:
authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2012-09-21 15:05:47 +0300
committerVinod Koul <vinod.koul@linux.intel.com>2012-09-27 15:35:23 +0530
commit4a63a8b3e8d2e4f56174deb728085010aa3ac2a1 (patch)
tree0c6d4fb4cd88f9c7fff748909e5956ea55793ef0 /include/linux/dw_dmac.h
parent482c67ea7bab80b956185a3e7553151820bc5876 (diff)
downloadop-kernel-dev-4a63a8b3e8d2e4f56174deb728085010aa3ac2a1.zip
op-kernel-dev-4a63a8b3e8d2e4f56174deb728085010aa3ac2a1.tar.gz
dw_dmac: autoconfigure block_size or use platform data
The maximum block size is a configurable parameter for the chip. So, driver will try to get it from the encoded component parameters. Otherwise it will come from the platform data. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Diffstat (limited to 'include/linux/dw_dmac.h')
-rw-r--r--include/linux/dw_dmac.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/dw_dmac.h b/include/linux/dw_dmac.h
index 2412e02..3315ef9 100644
--- a/include/linux/dw_dmac.h
+++ b/include/linux/dw_dmac.h
@@ -19,6 +19,7 @@
* @nr_channels: Number of channels supported by hardware (max 8)
* @is_private: The device channels should be marked as private and not for
* by the general purpose DMA channel allocator.
+ * @block_size: Maximum block size supported by the controller
*/
struct dw_dma_platform_data {
unsigned int nr_channels;
@@ -29,6 +30,7 @@ struct dw_dma_platform_data {
#define CHAN_PRIORITY_ASCENDING 0 /* chan0 highest */
#define CHAN_PRIORITY_DESCENDING 1 /* chan7 highest */
unsigned char chan_priority;
+ unsigned short block_size;
};
/* bursts size */
OpenPOWER on IntegriCloud