From: Qipan Li <Qipan.Li@xxxxxxx>
>From HW spec, when rxfifo's data is less than AFC_RX_THD(RX threshhold), RTS
signal is active. otherwise, RTS signal is inactive.
Crrently the RX threshhold is set as zero, so RTS has no chance to be
active. This patch replaces the default 0 by a positive number.
Signed-off-by: Qipan Li <Qipan.Li@xxxxxxx>
Signed-off-by: Barry Song <Baohua.Song@xxxxxxx>
---
drivers/tty/serial/sirfsoc_uart.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/tty/serial/sirfsoc_uart.c b/drivers/tty/serial/sirfsoc_uart.c
index 1d0d47f..48cceaf 100644
--- a/drivers/tty/serial/sirfsoc_uart.c
+++ b/drivers/tty/serial/sirfsoc_uart.c
@@ -344,7 +344,8 @@ static void sirfsoc_uart_enable_ms(struct uart_port *port)
if (sirfport->uart_reg->uart_type == SIRF_REAL_UART) {
wr_regl(port, ureg->sirfsoc_afc_ctrl,
rd_regl(port, ureg->sirfsoc_afc_ctrl) |
- SIRFUART_AFC_TX_EN | SIRFUART_AFC_RX_EN);
+ SIRFUART_AFC_TX_EN | SIRFUART_AFC_RX_EN |
+ SIRFUART_AFC_CTRL_RX_THD);
if (!sirfport->is_atlas7)
wr_regl(port, ureg->sirfsoc_int_en_reg,
rd_regl(port, ureg->sirfsoc_int_en_reg)
--
2.3.5
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