void serial8250_rx_dma_flush(struct uart_8250_port *p)
{
struct uart_8250_dma *dma = p->dma;
if (dma->rx_running) {
dmaengine_pause(dma->rxchan);
__dma_rx_complete(p);
dmaengine_terminate_async(dma->rxchan);
}
}
static void bcm2835_spi_dma_done(void *data)
{
struct spi_master *master = data;
struct bcm2835_spi *bs = spi_master_get_devdata(master);
/* reset fifo and HW */
bcm2835_spi_reset_hw(master);
/* and terminate tx-dma as we do not have an irq for it
* because when the rx dma will terminate and this callback
* is called the tx-dma must have finished - can't get to this
* situation otherwise...
*/
if (cmpxchg(&bs->dma_pending, true, false)) {
dmaengine_terminate_async(master->dma_tx);
bcm2835_spi_undo_prologue(bs);
}
/* and mark as completed */;
complete(&master->xfer_completion);
}
static void stm32_spdifrx_dma_ctrl_stop(struct stm32_spdifrx_data *spdifrx)
{
dmaengine_terminate_async(spdifrx->ctrl_chan);
}
