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authorMarkus Pargmann <mpa@pengutronix.de>2013-03-29 16:20:09 +0100
committerShawn Guo <shawn.guo@linaro.org>2013-04-09 19:46:30 +0800
commitcab1e0a36c9dd0b0671fb84197ed294513f5adc1 (patch)
tree843e2c364cf5ef5a00592a605b2794313aa0e914
parent31880c37c11e28cb81c70757e38392b42e695dc6 (diff)
downloadlwn-cab1e0a36c9dd0b0671fb84197ed294513f5adc1.tar.gz
lwn-cab1e0a36c9dd0b0671fb84197ed294513f5adc1.zip
ARM: clk-imx35: Bugfix iomux clock
This patch enables iomuxc_gate clock. It is necessary to be able to reconfigure iomux pads. Without this clock enabled, the clk_disable_unused function will disable this clock and the iomux pads are not configurable anymore. This happens at every boot. After a reboot (watchdog system reset) the clock is not enabled again, so all iomux pad reconfigurations in boot code are without effect. The iomux pads should be always configurable, so this patch always enables it. Signed-off-by: Markus Pargmann <mpa@pengutronix.de> Cc: stable@vger.kernel.org Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
-rw-r--r--arch/arm/mach-imx/clk-imx35.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/clk-imx35.c b/arch/arm/mach-imx/clk-imx35.c
index e13a8fa5e62c..b95898a3912c 100644
--- a/arch/arm/mach-imx/clk-imx35.c
+++ b/arch/arm/mach-imx/clk-imx35.c
@@ -265,6 +265,7 @@ int __init mx35_clocks_init(void)
clk_prepare_enable(clk[iim_gate]);
clk_prepare_enable(clk[emi_gate]);
clk_prepare_enable(clk[max_gate]);
+ clk_prepare_enable(clk[iomuxc_gate]);
/*
* SCC is needed to boot via mmc after a watchdog reset. The clock code