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 <[e-mail]>
Reviewed-by: Mukesh Kumar Savaliya <[e-mail]>
Reviewed-by: Stephen Boyd <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/tty/serial/qcom_geni_serial.c

···
 #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 {
···
 	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) {