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/linux-4.4.14/drivers/i2c/busses/
Di2c-tegra.c275 size_t buf_remaining = i2c_dev->msg_buf_remaining; in tegra_i2c_empty_rx_fifo() local
283 words_to_transfer = buf_remaining / BYTES_PER_FIFO_WORD; in tegra_i2c_empty_rx_fifo()
290 buf_remaining -= words_to_transfer * BYTES_PER_FIFO_WORD; in tegra_i2c_empty_rx_fifo()
297 if (rx_fifo_avail > 0 && buf_remaining > 0) { in tegra_i2c_empty_rx_fifo()
298 BUG_ON(buf_remaining > 3); in tegra_i2c_empty_rx_fifo()
301 memcpy(buf, &val, buf_remaining); in tegra_i2c_empty_rx_fifo()
302 buf_remaining = 0; in tegra_i2c_empty_rx_fifo()
306 BUG_ON(rx_fifo_avail > 0 && buf_remaining > 0); in tegra_i2c_empty_rx_fifo()
307 i2c_dev->msg_buf_remaining = buf_remaining; in tegra_i2c_empty_rx_fifo()
317 size_t buf_remaining = i2c_dev->msg_buf_remaining; in tegra_i2c_fill_tx_fifo() local
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