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| author | Qipan Li <Qipan.Li@csr.com> | 2015-07-14 00:52:23 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-07-23 15:32:04 -0700 |
| commit | 466e285b1f63e84a6ced5cd18c3c3d90bda73404 (patch) | |
| tree | 30e87148646da7df909f0609326c6a72b3b626c8 /drivers/tty/serial/sirfsoc_uart.h | |
| parent | 1d26c9ff420f647df4a7a3e9a28736b9cff6359a (diff) | |
| download | linux-466e285b1f63e84a6ced5cd18c3c3d90bda73404.tar.bz2 | |
serial: sirf: let uart's receive start in right place
While UART work in DMA mode, function start_rx will request descriptor
from DMA engine, if there is no left descriptor UART, driver will give
err logs "DMA slave single fail".
currently start_rx is called in set_termios function, so everytime, port
setting will call start_rx once.
Now put start_rx in startup, it will be called once while open the port.
Signed-off-by: Qipan Li <Qipan.Li@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/sirfsoc_uart.h')
| -rw-r--r-- | drivers/tty/serial/sirfsoc_uart.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/tty/serial/sirfsoc_uart.h b/drivers/tty/serial/sirfsoc_uart.h index 671a08dc5497..c3a885b4d76a 100644 --- a/drivers/tty/serial/sirfsoc_uart.h +++ b/drivers/tty/serial/sirfsoc_uart.h @@ -423,7 +423,6 @@ struct sirfsoc_uart_port { struct dma_chan *tx_dma_chan; dma_addr_t tx_dma_addr; struct dma_async_tx_descriptor *tx_dma_desc; - unsigned int rx_io_count; unsigned long transfer_size; enum sirfsoc_tx_state tx_dma_state; unsigned int cts_gpio; |