serial: msm_serial: fix clock rate on DMA-based uarts

The driver explicitly requests a clock rate for the UART, but it is
off by a factor of four from the dividers that it programs into the
UART.  Fix this by setting the rate to 1/4 of the current value.

Signed-off-by: David Brown <davidb@codeaurora.org>

diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c
index 8131e2c28015432ea3be3fc41b6206f3102fd98b..033e0bc9ebabccb30e33ea0d4d24947dcff48661 100644 (file)
--- a/drivers/tty/serial/msm_serial.c
+++ b/drivers/tty/serial/msm_serial.c
@@ -896,7 +896,7 @@ static int __init msm_serial_probe(struct platform_device *pdev)
                        return PTR_ERR(msm_port->clk);
 
        if (msm_port->is_uartdm)
-               clk_set_rate(msm_port->clk, 7372800);
+               clk_set_rate(msm_port->clk, 1843200);
 
        port->uartclk = clk_get_rate(msm_port->clk);
        printk(KERN_INFO "uartclk = %d\n", port->uartclk);