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authorSoren Brinkmann <soren.brinkmann@xilinx.com>2015-01-27 11:05:27 -0800
committerJiri Slaby <jslaby@suse.cz>2015-03-16 14:53:36 +0100
commit9a0fb408e3294a4a9e058567f21163c024f67269 (patch)
tree038cb8e5709d141076dd8c3ff243509712a9b1d4
parent987f065a71f9d4ac3553c7f9b220ce14cf317024 (diff)
clk: zynq: Force CPU_2X clock to be ungated
commit 3dccfecdb867fe35b305a4e493ef5652b7d9d4cb upstream. 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. 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> Signed-off-by: Jiri Slaby <jslaby@suse.cz>
-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 cc40fe64f2dc..01eb95cd549e 100644
--- a/drivers/clk/zynq/clkc.c
+++ b/drivers/clk/zynq/clkc.c
@@ -276,6 +276,7 @@ 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);