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authorSoren Brinkmann <soren.brinkmann@xilinx.com>2015-01-27 19:05:27 (GMT)
committerMichael Turquette <mturquette@linaro.org>2015-01-28 01:00:24 (GMT)
commit3dccfecdb867fe35b305a4e493ef5652b7d9d4cb (patch)
tree60fb06aa80add6e430ce7043ac4466bf071230d1 /drivers/clk/zynq
parent8f101aa0272c21b116fd2b53c4ff7815698e4814 (diff)
downloadlinux-3dccfecdb867fe35b305a4e493ef5652b7d9d4cb.tar.xz
clk: zynq: Force CPU_2X clock to be ungated
The CPU_2X clock does not have a classical in-kernel user, but is, amongst other things, required for OCM and debug access. Make sure this clock is not mistakenly disabled during boot up by enabling it in the platform's clock driver. Cc: stable@vger.kernel.org # 3.11+ Fixes: 0ee52b157b8e 'clk: zynq: Add clock controller driver' Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: Michael Turquette <mturquette@linaro.org>
Diffstat (limited to 'drivers/clk/zynq')
-rw-r--r--drivers/clk/zynq/clkc.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/clk/zynq/clkc.c b/drivers/clk/zynq/clkc.c
index 9037beb..f870aad 100644
--- a/drivers/clk/zynq/clkc.c
+++ b/drivers/clk/zynq/clkc.c
@@ -303,6 +303,7 @@ static void __init zynq_clk_setup(struct device_node *np)
clks[cpu_2x] = clk_register_gate(NULL, clk_output_name[cpu_2x],
"cpu_2x_div", CLK_IGNORE_UNUSED, SLCR_ARM_CLK_CTRL,
26, 0, &armclk_lock);
+ clk_prepare_enable(clks[cpu_2x]);
clk = clk_register_fixed_factor(NULL, "cpu_1x_div", "cpu_div", 0, 1,
4 + 2 * tmp);