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Searched refs:dma_chan_busy (Results 1 – 3 of 3) sorted by relevance

/Linux-v5.4/kernel/
Ddma.c60 static struct dma_chan dma_chan_busy[MAX_DMA_CHANNELS] = { variable
75 if (xchg(&dma_chan_busy[dmanr].lock, 1) != 0) in request_dma()
78 dma_chan_busy[dmanr].device_id = device_id; in request_dma()
95 if (xchg(&dma_chan_busy[dmanr].lock, 0) == 0) { in free_dma()
123 if (dma_chan_busy[i].lock) { in proc_dma_show()
125 dma_chan_busy[i].device_id); in proc_dma_show()
/Linux-v5.4/drivers/spi/
Dspi-dw-mid.c135 clear_bit(TX_BUSY, &dws->dma_chan_busy); in dw_spi_dma_tx_done()
136 if (test_bit(RX_BUSY, &dws->dma_chan_busy)) in dw_spi_dma_tx_done()
181 clear_bit(RX_BUSY, &dws->dma_chan_busy); in dw_spi_dma_rx_done()
182 if (test_bit(TX_BUSY, &dws->dma_chan_busy)) in dw_spi_dma_rx_done()
252 set_bit(RX_BUSY, &dws->dma_chan_busy); in mid_spi_dma_transfer()
258 set_bit(TX_BUSY, &dws->dma_chan_busy); in mid_spi_dma_transfer()
268 if (test_bit(TX_BUSY, &dws->dma_chan_busy)) { in mid_spi_dma_stop()
270 clear_bit(TX_BUSY, &dws->dma_chan_busy); in mid_spi_dma_stop()
272 if (test_bit(RX_BUSY, &dws->dma_chan_busy)) { in mid_spi_dma_stop()
274 clear_bit(RX_BUSY, &dws->dma_chan_busy); in mid_spi_dma_stop()
Dspi-dw.h135 unsigned long dma_chan_busy; member