On 08/05/14 12:22, Stephen Boyd wrote:
>
> I tried it and it doesn't work either. Typing lots of characters finally
> unjams it like you see on 1.4 hardware.
>
Can you try this? It seems to work for me on both 1.3 and 1.4 hardware
diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c
index 72000a6d5af0..fbcb0c657d5f 100644
--- a/drivers/tty/serial/msm_serial.c
+++ b/drivers/tty/serial/msm_serial.c
@@ -680,17 +680,6 @@ static void msm_power(struct uart_port *port, unsigned int
state,
}
#ifdef CONFIG_CONSOLE_POLL
-static int msm_poll_init(struct uart_port *port)
-{
- struct msm_port *msm_port = UART_TO_MSM(port);
-
- /* Enable single character mode on RX FIFO */
- if (msm_port->is_uartdm >= UARTDM_1P4)
- msm_write(port, UARTDM_DMEN_RX_SC_ENABLE, UARTDM_DMEN);
-
- return 0;
-}
-
static int msm_poll_get_char_single(struct uart_port *port)
{
struct msm_port *msm_port = UART_TO_MSM(port);
@@ -702,7 +691,7 @@ static int msm_poll_get_char_single(struct uart_port *port)
return msm_read(port, rf_reg) & 0xff;
}
-static int msm_poll_get_char_dm_1p3(struct uart_port *port)
+static int msm_poll_get_char_dm(struct uart_port *port)
{
int c;
static u32 slop;
@@ -726,6 +715,9 @@ static int msm_poll_get_char_dm_1p3(struct uart_port *port)
slop = msm_read(port, UARTDM_RF);
c = sp[0];
count--;
+ msm_write(port, UART_CR_CMD_RESET_STALE_INT, UART_CR);
+ msm_write(port, 0xFFFFFF, UARTDM_DMRX);
+ msm_write(port, UART_CR_CMD_STALE_EVENT_ENABLE,
UART_CR);
} else {
c = NO_POLL_CHAR;
}
@@ -749,8 +741,8 @@ static int msm_poll_get_char(struct uart_port *port)
imr = msm_read(port, UART_IMR);
msm_write(port, 0, UART_IMR);
- if (msm_port->is_uartdm == UARTDM_1P3)
- c = msm_poll_get_char_dm_1p3(port);
+ if (msm_port->is_uartdm)
+ c = msm_poll_get_char_dm(port);
else
c = msm_poll_get_char_single(port);
@@ -809,7 +801,6 @@ static struct uart_ops msm_uart_pops = {
.verify_port = msm_verify_port,
.pm = msm_power,
#ifdef CONFIG_CONSOLE_POLL
- .poll_init = msm_poll_init,
.poll_get_char = msm_poll_get_char,
.poll_put_char = msm_poll_put_char,
#endif
--
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