[PATCH] Revert "serial: 8250: Fix max baud limit in generic 8250 port"

[Daniel Winkler]

This reverts commit 0eeaf62981ecc79e8395ca8caa1570eaf3a12257.

The change regresses the QCA6174A-3 bluetooth chip, preventing
firmware from being properly loaded. We have verified that without
this patch, the chip works as intended.

Signed-off-by: Daniel Winkler <danielwink...@google.com>
---

 drivers/tty/serial/8250/8250_port.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_port.c 
b/drivers/tty/serial/8250/8250_port.c
index 1632f7d25acca..e057c65ac1580 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -2618,8 +2618,6 @@ static unsigned int serial8250_get_baud_rate(struct 
uart_port *port,
                                             struct ktermios *termios,
                                             struct ktermios *old)
 {
-       unsigned int tolerance = port->uartclk / 100;
-
        /*
         * Ask the core to calculate the divisor for us.
         * Allow 1% tolerance at the upper limit so uart clks marginally
@@ -2628,7 +2626,7 @@ static unsigned int serial8250_get_baud_rate(struct 
uart_port *port,
         */
        return uart_get_baud_rate(port, termios, old,
                                  port->uartclk / 16 / UART_DIV_MAX,
-                                 (port->uartclk + tolerance) / 16);
+                                 port->uartclk);
 }
 
 void
-- 
2.27.0.212.ge8ba1cc988-goog