Patchwork [v2,1/2] ARM: clk-imx35: Bugfix iomux clock

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Submitter Markus Pargmann
Date March 29, 2013, 3:20 p.m.
Message ID <1364570410-32755-2-git-send-email-mpa@pengutronix.de>
Download mbox | patch
Permalink /patch/232438/
State New
Headers show

Comments

Markus Pargmann - March 29, 2013, 3:20 p.m.
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
---
 arch/arm/mach-imx/clk-imx35.c | 1 +
 1 file changed, 1 insertion(+)

Patch

diff --git a/arch/arm/mach-imx/clk-imx35.c b/arch/arm/mach-imx/clk-imx35.c
index e13a8fa..b95898a 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