Re: [alsa-devel] [PATCH v1 2/5] ASoC: mmp: add audio dma support

On Thu, 2012-06-07 at 18:44 +0800, zhangfei gao wrote:

Only exception is dmaengine_slave_config, since we have some specific config.

And why?

+static bool filter(struct dma_chan *chan, void *param) +{

• struct mmp_dma_data *dma_data = param;
• bool found = false;
• char *devname;
• devname = kasprintf(GFP_KERNEL, "%s.%d", dma_data->dma_res->name,

• dma_data->ssp_id);
  

• if ((strcmp(dev_name(chan->device->dev), devname) == 0) &&

• (chan->chan_id == dma_data->dma_res->start)) {
  

• chan->private = &dma_data->tdma_data;
  

chan->private is deprecated and should not be used

• found = true;
  

• }
• kfree(devname);
• return found;

+}