Re: [PATCH v2] clk: zynq: Force CPU_2X clock to be ungated

From: Mike Turquette
Date: Tue Jan 27 2015 - 20:01:49 EST


Quoting Soren Brinkmann (2015-01-27 11:05:27)
> 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@xxxxxxxxxxxxxxx # 3.11+
> Fixes: 0ee52b157b8e 'clk: zynq: Add clock controller driver'
> Signed-off-by: Soren Brinkmann <soren.brinkmann@xxxxxxxxxx>

Applied to clk-next.

Regards,
Mike

> ---
> v2:
> - Fixed some typo's in the commit message
> - added Fixes and Cc tags to commit message
>
> As reference, the v1 submission: https://patchwork.kernel.org/patch/5698251/
> ---
> drivers/clk/zynq/clkc.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/clk/zynq/clkc.c b/drivers/clk/zynq/clkc.c
> index 9037bebd69f7..f870aad57711 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);
> --
> 2.2.2.1.g63c5777
>
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