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/Linux-v4.19/drivers/dma/
Dtegra210-adma.c129 unsigned int sreq_index; member
234 unsigned int sreq_index = tdc->sreq_index; in tegra_adma_request_alloc() local
241 if (sreq_index > ADMA_CH_CTRL_TX_REQ_MAX) { in tegra_adma_request_alloc()
246 if (test_and_set_bit(sreq_index, &tdma->tx_requests_reserved)) { in tegra_adma_request_alloc()
253 if (sreq_index > ADMA_CH_CTRL_RX_REQ_MAX) { in tegra_adma_request_alloc()
258 if (test_and_set_bit(sreq_index, &tdma->rx_requests_reserved)) { in tegra_adma_request_alloc()
285 clear_bit(tdc->sreq_index, &tdma->tx_requests_reserved); in tegra_adma_request_free()
289 clear_bit(tdc->sreq_index, &tdma->rx_requests_reserved); in tegra_adma_request_free()
500 ch_regs->ctrl = ADMA_CH_CTRL_TX_REQ(tdc->sreq_index); in tegra_adma_set_xfer_params()
508 ch_regs->ctrl = ADMA_CH_CTRL_RX_REQ(tdc->sreq_index); in tegra_adma_set_xfer_params()
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