On 17 April 2018 at 18:45, Lars-Peter Clausen <lars@xxxxxxxxxx> wrote:
> On 04/10/2018 09:46 AM, Baolin Wang wrote:
> [...]
>> +static int sprd_dma_slave_config(struct dma_chan *chan,
>> + struct dma_slave_config *config)
>> +{
>> + struct sprd_dma_chn *schan = to_sprd_dma_chan(chan);
>> + struct sprd_dma_config *slave_cfg =
>> + container_of(config, struct sprd_dma_config, config);
>> +
>
> Please do not overload standard API with custom semantics. This makes the
> driver incompatible to the API and negates the whole idea of having a common
> API. E.g. this will crash when somebody passes a normal dma_slave_config
> struct to this function.
>
Yes, we have discussed with Vinod how to use 'dma_slave_config' to
reach our requirements. Thanks for your comments.
--
Baolin.wang
Best Regards
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