Searched refs:dma_chan_busy (Results 1 - 3 of 3) sorted by relevance
/linux-4.4.14/kernel/ |
H A D | dma.c | 49 /* Channel n is busy iff dma_chan_busy[n].lock != 0. 59 static struct dma_chan dma_chan_busy[MAX_DMA_CHANNELS] = { variable in typeref:struct:dma_chan 74 if (xchg(&dma_chan_busy[dmanr].lock, 1) != 0) request_dma() 77 dma_chan_busy[dmanr].device_id = device_id; request_dma() 94 if (xchg(&dma_chan_busy[dmanr].lock, 0) == 0) { free_dma() 122 if (dma_chan_busy[i].lock) { proc_dma_show() 124 dma_chan_busy[i].device_id); proc_dma_show()
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/linux-4.4.14/drivers/spi/ |
H A D | spi-dw-mid.c | 136 * dws->dma_chan_busy is set before the dma transfer starts, callback for tx 143 clear_bit(TX_BUSY, &dws->dma_chan_busy); dw_spi_dma_tx_done() 144 if (test_bit(RX_BUSY, &dws->dma_chan_busy)) dw_spi_dma_tx_done() 182 * dws->dma_chan_busy is set before the dma transfer starts, callback for rx 189 clear_bit(RX_BUSY, &dws->dma_chan_busy); dw_spi_dma_rx_done() 190 if (test_bit(TX_BUSY, &dws->dma_chan_busy)) dw_spi_dma_rx_done() 260 set_bit(RX_BUSY, &dws->dma_chan_busy); mid_spi_dma_transfer() 266 set_bit(TX_BUSY, &dws->dma_chan_busy); mid_spi_dma_transfer() 276 if (test_bit(TX_BUSY, &dws->dma_chan_busy)) { mid_spi_dma_stop() 278 clear_bit(TX_BUSY, &dws->dma_chan_busy); mid_spi_dma_stop() 280 if (test_bit(RX_BUSY, &dws->dma_chan_busy)) { mid_spi_dma_stop() 282 clear_bit(RX_BUSY, &dws->dma_chan_busy); mid_spi_dma_stop()
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H A D | spi-dw.h | 131 unsigned long dma_chan_busy; member in struct:dw_spi
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