From: Soren Brinkmann Date: Tue, 27 Jan 2015 19:05:27 +0000 (-0800) Subject: clk: zynq: Force CPU_2X clock to be ungated X-Git-Tag: v3.19.2~48 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dad96ab777646836b86ec41701f22c3148c31ee2;p=thirdparty%2Fkernel%2Fstable.git 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 Signed-off-by: Michael Turquette Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/clk/zynq/clkc.c b/drivers/clk/zynq/clkc.c index 9037bebd69f79..f870aad57711f 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);