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authorAndrew Lunn <andrew@lunn.ch>2013-02-03 11:34:26 +0100
committerJason Cooper <jason@lakedaemon.net>2013-03-08 21:34:34 +0000
commitde88747f514a4e0cca416a8871de2302f4f77790 (patch)
treea0a44be0a4ca5f16784bed1ee835b9ec85ddda5a /arch/arm/boot/dts
parent7bf5b408b419fc849578e6e9fbd221bf43638eb6 (diff)
gpio: mvebu: Add clk support to prevent lockup
The kirkwood SoC GPIO cores use the runit clock. Add code to clk_prepare_enable() runit, otherwise there is a danger of locking up the SoC by accessing the GPIO registers when runit clock is not ticking. Reported-by: Simon Baatz <gmbnomis@gmail.com> Signed-off-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Simon Baatz <gmbnomis@gmail.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Cc: <stable@vger.kernel.org> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Diffstat (limited to 'arch/arm/boot/dts')
-rw-r--r--arch/arm/boot/dts/kirkwood.dtsi2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/kirkwood.dtsi b/arch/arm/boot/dts/kirkwood.dtsi
index 19709fbe12c..cf8e8926a03 100644
--- a/arch/arm/boot/dts/kirkwood.dtsi
+++ b/arch/arm/boot/dts/kirkwood.dtsi
@@ -38,6 +38,7 @@
interrupt-controller;
#interrupt-cells = <2>;
interrupts = <35>, <36>, <37>, <38>;
+ clocks = <&gate_clk 7>;
};
gpio1: gpio@10140 {
@@ -49,6 +50,7 @@
interrupt-controller;
#interrupt-cells = <2>;
interrupts = <39>, <40>, <41>;
+ clocks = <&gate_clk 7>;
};
serial@12000 {