dmaengine: xilinx: dpdma: convert tasklets to use new tasklet_setup() API

/**

 * xilinx_dpdma_chan_err_task - Per channel tasklet for error handling

 * @data: tasklet data to be casted to DPDMA channel structure

 * @t: pointer to the tasklet associated with this handler

 *

 * Per channel error handling tasklet. This function waits for the outstanding

 * transaction to complete and triggers error handling. After error handling,

 * re-enable channel error interrupts, and restart the channel if needed.

 */

static void xilinx_dpdma_chan_err_task(unsigned long data)

static void xilinx_dpdma_chan_err_task(struct tasklet_struct *t)

{

	struct xilinx_dpdma_chan *chan = (struct xilinx_dpdma_chan *)data;

	struct xilinx_dpdma_chan *chan = from_tasklet(chan, t, err_task);

	struct xilinx_dpdma_device *xdev = chan->xdev;

	unsigned long flags;

	spin_lock_init(&chan->lock);

	init_waitqueue_head(&chan->wait_to_stop);

	tasklet_init(&chan->err_task, xilinx_dpdma_chan_err_task,

		     (unsigned long)chan);

	tasklet_setup(&chan->err_task, xilinx_dpdma_chan_err_task);

	chan->vchan.desc_free = xilinx_dpdma_chan_free_tx_desc;

	vchan_init(&chan->vchan, &xdev->common);