diff mbox

msm_serial: fix clock rate on DMA-based uarts

Message ID 1347054303-5643-1-git-send-email-davidb@codeaurora.org (mailing list archive)
State New, archived
Headers show

Commit Message

David Brown Sept. 7, 2012, 9:45 p.m. UTC
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>
---
 drivers/tty/serial/msm_serial.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c
index 8131e2c..033e0bc 100644
--- 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);