From: davidb@codeaurora.org (David Brown)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC PATCH 34/34] msm_serial: fix clock rate on DMA-based uarts
Date: Wed, 2 Nov 2011 11:36:31 -0700 [thread overview]
Message-ID: <1320258991-22325-35-git-send-email-davidb@codeaurora.org> (raw)
In-Reply-To: <1320258991-22325-1-git-send-email-davidb@codeaurora.org>
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 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c
index 29cbfd8..b7baceb 100644
--- a/drivers/tty/serial/msm_serial.c
+++ b/drivers/tty/serial/msm_serial.c
@@ -891,7 +891,7 @@ 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);
--
Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.
prev parent reply other threads:[~2011-11-02 18:36 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-02 18:35 [RFC PATCH 00/34] msm: msm8660 and msm8960 clock support David Brown
2011-11-02 18:35 ` [RFC PATCH 01/34] msm: clock-pcom: Mark functions static David Brown
2011-11-02 18:35 ` [RFC PATCH 02/34] msm: clock: Always use an array to iterate over clocks David Brown
2011-11-02 19:45 ` Russell King - ARM Linux
2011-11-02 21:34 ` Stephen Boyd
2011-11-02 18:36 ` [RFC PATCH 03/34] msm: clock: Pass struct clk to the clk_ops David Brown
2011-11-02 18:36 ` [RFC PATCH 04/34] msm: clock: Support one lock per clock David Brown
2011-11-02 18:36 ` [RFC PATCH 05/34] msm: clock-pcom: Introduce a struct pcom_clk David Brown
2011-11-02 18:36 ` [RFC PATCH 06/34] msm: clock: Support clk_[s|g]et_parent() clk_ops David Brown
2011-11-02 18:36 ` [RFC PATCH 07/34] msm: clock-debug: Use clk_enable()/clk_disable() directly David Brown
2011-11-02 18:36 ` [RFC PATCH 08/34] msm: clock: Enable/disable parent clocks generically David Brown
2011-11-02 18:36 ` [RFC PATCH 09/34] msm: clock: Implement rate voting David Brown
2011-11-02 18:36 ` [RFC PATCH 10/34] msm: clock-pcom: Add pbus specific clock ops David Brown
2011-11-02 18:36 ` [RFC PATCH 11/34] msm: Migrate to clock rate voting David Brown
2011-11-02 18:36 ` [RFC PATCH 12/34] msm: clock: Make most clk_*() operations optional David Brown
2011-11-02 18:36 ` [RFC PATCH 13/34] msm: clock-debug: Implement a default is_enabled() David Brown
2011-11-02 18:36 ` [RFC PATCH 14/34] msm: proc_comm: Add CLKCTL_RPC_SRC_REQUEST David Brown
2011-11-02 18:36 ` [RFC PATCH 15/34] msm: clock: Add local clock control framework David Brown
2011-11-02 18:36 ` [RFC PATCH 16/34] msm: clock-pcom: Expose pc_clk_reset David Brown
2011-11-02 18:36 ` [RFC PATCH 17/34] msm: clock: Add 7x30 local clock support David Brown
2011-11-02 18:36 ` [RFC PATCH 18/34] msm: clock-local: Add support for 8x60 clock types David Brown
2011-11-02 18:36 ` [RFC PATCH 20/34] msm: clock: Add list_rate debugfs nodes for locally-controlled clocks David Brown
2011-11-02 18:36 ` [RFC PATCH 21/34] msm: clock: Add debugfs interface to measure clock rates David Brown
2011-11-02 18:36 ` [RFC PATCH 22/34] msm: clock-8x60: Support measurement of CPU and L2 clocks David Brown
2011-11-02 18:36 ` [RFC PATCH 23/34] msm: Unify iomap for clock regions David Brown
2011-11-02 18:36 ` [RFC PATCH 24/34] msm: clock: Support dummy clocks David Brown
2011-11-02 18:36 ` [RFC PATCH 26/34] msm: 8660: Add FLUID support David Brown
2011-11-02 18:36 ` [RFC PATCH 27/34] msm-8x60: Add serial support David Brown
2011-11-02 18:36 ` [RFC PATCH 28/34] msm: clock: Invert CLKFLAG_AUTO_OFF David Brown
2011-11-02 18:36 ` [RFC PATCH 29/34] msm: clock: Expand CLK_MIN, CLK_MAX and CLK_MINMAX macros David Brown
2011-11-02 18:36 ` [RFC PATCH 30/34] msm: clock: Add EBI1 voter clocks for ADM on SoCs without them David Brown
2011-11-02 18:36 ` [RFC PATCH 31/34] msm: clock: Remove msm_clk_soc_init() David Brown
2011-11-02 18:36 ` [RFC PATCH 32/34] msm: clock-8x60: Add local control of vpe_axi_clk and vpe_axi_clk David Brown
2011-11-02 18:36 ` [RFC PATCH 33/34] ARM: msm: fix names of UART clocks David Brown
2011-11-02 18:36 ` David Brown [this message]
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