linux-kernel - Re: [RFC/RFT 02/14] clk: core: introduce clk_hw_set

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Date:   Tue, 25 Jun 2019 13:32:26 -0700
From:   Stephen Boyd <sboyd@...nel.org>
To:     Neil Armstrong <narmstrong@...libre.com>, jbrunet@...libre.com,
        khilman@...libre.com
Cc:     linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-clk@...r.kernel.org, martin.blumenstingl@...glemail.com,
        Neil Armstrong <narmstrong@...libre.com>
Subject: Re: [RFC/RFT 02/14] clk: core: introduce clk_hw_set_parent()

Quoting Neil Armstrong (2019-06-20 08:00:01)
> diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
> index aa51756fd4d6..3e98f7dec626 100644
> --- a/drivers/clk/clk.c
> +++ b/drivers/clk/clk.c
> @@ -2490,6 +2490,11 @@ static int clk_core_set_parent_nolock(struct clk_core *core,
>         return ret;
>  }
>  
> +int clk_hw_set_parent(struct clk_hw *hw, struct clk_hw *parent)
> +{
> +       return clk_core_set_parent_nolock(hw->core, parent->core);
> +}

Will this be used from a module? Maybe it needs an EXPORT_SYMBOL_GPL().

> +
>  /**
>   * clk_set_parent - switch the parent of a mux clk
>   * @clk: the mux clk whose input we are switching