Re: [PATCH v3 10/11] clk: Add clk_hw_get_clk() helper API to be used by clk providers

From: Stephen Boyd
Date: Wed Nov 02 2016 - 18:22:15 EST


On 09/29, Rajendra Nayak wrote:
> Add a helper API that will allow clk providers to turn their clk_hw
> structures into struct clk pointer.
>

Did I suggest this?

> Signed-off-by: Rajendra Nayak <rnayak@xxxxxxxxxxxxxx>
> ---
> drivers/clk/clk.c | 6 ++++++
> include/linux/clk-provider.h | 1 +
> 2 files changed, 7 insertions(+)
>
> diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
> index 820a939..a084132 100644
> --- a/drivers/clk/clk.c
> +++ b/drivers/clk/clk.c
> @@ -186,6 +186,12 @@ const char *clk_hw_get_name(const struct clk_hw *hw)
> }
> EXPORT_SYMBOL_GPL(clk_hw_get_name);
>
> +struct clk *clk_hw_get_clk(const struct clk_hw *hw)
> +{
> + return hw->clk;

I'd prefer we actually went through all the work and actually
allocated another clk structure here. We can add another string
or two for the dev_id and con_id too for debug/accouting
purposes.

The hw->clk is sort of a remnant of the clk_core introduction. I
can't recall the exact plan (i.e. I should write it down
somewhere once I do) but I think we want to get rid of hw->clk
and have everyone use clk_hw_get_clk() instead. Then for
traversals from the clk_hw pointer to a clk pointer are very
clear.

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