[PATCH 2/3] clk: WARN_ON about to disable a critical clock

Michael Turquette mturquette at baylibre.com
Wed Feb 10 16:43:27 PST 2016


Quoting Lee Jones (2016-01-18 06:28:50)
> Signed-off-by: Lee Jones <lee.jones at linaro.org>

Looks good to me.

Regards,
Mike

> ---
>  drivers/clk/clk.c | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
> index 835cb85..178b364 100644
> --- a/drivers/clk/clk.c
> +++ b/drivers/clk/clk.c
> @@ -575,6 +575,9 @@ static void clk_core_unprepare(struct clk_core *core)
>         if (WARN_ON(core->prepare_count == 0))
>                 return;
>  
> +       if (WARN_ON(core->prepare_count == 1 && core->flags & CLK_IS_CRITICAL))
> +               return;
> +
>         if (--core->prepare_count > 0)
>                 return;
>  
> @@ -680,6 +683,9 @@ static void clk_core_disable(struct clk_core *core)
>         if (WARN_ON(core->enable_count == 0))
>                 return;
>  
> +       if (WARN_ON(core->enable_count == 1 && core->flags & CLK_IS_CRITICAL))
> +               return;
> +
>         if (--core->enable_count > 0)
>                 return;
>  
> -- 
> 1.9.1
> 



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