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tty: serial: qcom_geni_serial: Don't slow all ports just for kgdb 

If you turn on CONFIG_KGDB then you'll get CONFIG_CONSOLE_POLL
selected.

If you have CONFIG_CONSOLE_POLL selected then the GENI serial driver
was setting RX_BYTES_PW to 1 for _all_ UART ports.

This doesn't seem like such a good idea.  Let's only set RX_BYTES_PW
to 1 for the console port.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Mukesh Kumar Savaliya <msavaliy@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
hifive-unleashed-5.1
Douglas Anderson 2018-10-15 13:44:24 -07:00 committed by Greg Kroah-Hartman
parent 3957386aeb
commit 9f641df46b
1 changed files with 7 additions and 5 deletions
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12
drivers/tty/serial/qcom_geni_serial.c
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@ -89,9 +89,9 @@
#define MAX_LOOPBACK_CFG 3
#ifdef CONFIG_CONSOLE_POLL
#define RX_BYTES_PW 1
#define CONSOLE_RX_BYTES_PW 1
#else
#define RX_BYTES_PW 4
#define CONSOLE_RX_BYTES_PW 4
#endif
struct qcom_geni_serial_port {
@ -853,11 +853,13 @@ static int qcom_geni_serial_port_setup(struct uart_port *uport)
unsigned int rxstale = DEFAULT_BITS_PER_CHAR * STALE_TIMEOUT;
u32 proto;
if (uart_console(uport))
if (uart_console(uport)) {
port->tx_bytes_pw = 1;
else
port->rx_bytes_pw = CONSOLE_RX_BYTES_PW;
} else {
port->tx_bytes_pw = 4;
port->rx_bytes_pw = RX_BYTES_PW;
port->rx_bytes_pw = 4;
}
proto = geni_se_read_proto(&port->se);
if (proto != GENI_SE_UART) {