On 01/08/2015 06:28 AM, Kevin Hao wrote:
On Wed, Jan 07, 2015 at 03:23:24PM +0100, Lars-Peter Clausen wrote:
On 01/07/2015 01:57 PM, Kevin Hao wrote:
[...]
+ fdev->common.src_addr_widths = FSL_DMA_BUSWIDTHS;
+ fdev->common.dst_addr_widths = FSL_DMA_BUSWIDTHS;
+ fdev->common.directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV);
Please also set residue_granularity.
In the current fsldma driver, the residue reporting is not supported. So using
the default setting (DMA_RESIDUE_GRANULARITY_DESCRIPTOR) seems right to me.
Why do we still need to explicitly set residue_granularity? Did I miss
something?
Setting it makes it explicit that this is the granularity that is supported
by the driver and not simply has been overlooked setting the property.
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