[PATCH 04/10] clk: declare clk_ops of basic clks in clk-provider.h

Turquette, Mike mturquette at ti.com
Wed Mar 28 17:20:30 EDT 2012


On Tue, Mar 27, 2012 at 12:23 AM, Shawn Guo <shawn.guo at linaro.org> wrote:
> Besides the static initialization, the clk_ops of basic clks could
> also be used by particular clk type being subclass of the basic clks.
>
> For example, clk_busy_divider has the same clk_ops as clk_divider,
> except it has to wait for a busy bit before return success with
> .set_rate.  clk_busy_divider will somehow reuse clk_ops of clk_divider.
>
> Since clk-provider.h is included by clk-private.h, it's safe to move
> those clk_ops declaration of basic clks form  clk-private.h into
> clk-provider.h, so that implementation of clks like clk_busy_divider
> above do not need to include clk-private.h to access those clk_ops.
>
> Signed-off-by: Shawn Guo <shawn.guo at linaro.org>

Hi Shawn,

Thanks for the patch.  After Andrew's response on using clk_ops over
the EXPORT'd functions I'll take this in my fixes branch.

Mike

> ---
>  include/linux/clk-private.h  |    8 --------
>  include/linux/clk-provider.h |    4 ++++
>  2 files changed, 4 insertions(+), 8 deletions(-)
>
> diff --git a/include/linux/clk-private.h b/include/linux/clk-private.h
> index 5f4ccd7..f19fee0 100644
> --- a/include/linux/clk-private.h
> +++ b/include/linux/clk-private.h
> @@ -55,8 +55,6 @@ struct clk {
>  * alternative macro for static initialization
>  */
>
> -extern const struct clk_ops clk_fixed_rate_ops;
> -
>  #define DEFINE_CLK_FIXED_RATE(_name, _flags, _rate,            \
>                                _fixed_rate_flags)              \
>        static struct clk _name;                                \
> @@ -78,8 +76,6 @@ extern const struct clk_ops clk_fixed_rate_ops;
>                .flags = _flags,                                \
>        };
>
> -extern const struct clk_ops clk_gate_ops;
> -
>  #define DEFINE_CLK_GATE(_name, _parent_name, _parent_ptr,      \
>                                _flags, _reg, _bit_idx,         \
>                                _gate_flags, _lock)             \
> @@ -110,8 +106,6 @@ extern const struct clk_ops clk_gate_ops;
>                .flags = _flags,                                \
>        };
>
> -extern const struct clk_ops clk_divider_ops;
> -
>  #define DEFINE_CLK_DIVIDER(_name, _parent_name, _parent_ptr,   \
>                                _flags, _reg, _shift, _width,   \
>                                _divider_flags, _lock)          \
> @@ -143,8 +137,6 @@ extern const struct clk_ops clk_divider_ops;
>                .flags = _flags,                                \
>        };
>
> -extern const struct clk_ops clk_mux_ops;
> -
>  #define DEFINE_CLK_MUX(_name, _parent_names, _parents, _flags, \
>                                _reg, _shift, _width,           \
>                                _mux_flags, _lock)              \
> diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
> index 5508897..6eb8e5d 100644
> --- a/include/linux/clk-provider.h
> +++ b/include/linux/clk-provider.h
> @@ -149,6 +149,7 @@ struct clk_fixed_rate {
>        u8              flags;
>  };
>
> +extern const struct clk_ops clk_fixed_rate_ops;
>  struct clk *clk_register_fixed_rate(struct device *dev, const char *name,
>                const char *parent_name, unsigned long flags,
>                unsigned long fixed_rate);
> @@ -180,6 +181,7 @@ struct clk_gate {
>
>  #define CLK_GATE_SET_TO_DISABLE                BIT(0)
>
> +extern const struct clk_ops clk_gate_ops;
>  struct clk *clk_register_gate(struct device *dev, const char *name,
>                const char *parent_name, unsigned long flags,
>                void __iomem *reg, u8 bit_idx,
> @@ -218,6 +220,7 @@ struct clk_divider {
>  #define CLK_DIVIDER_ONE_BASED          BIT(0)
>  #define CLK_DIVIDER_POWER_OF_TWO       BIT(1)
>
> +extern const struct clk_ops clk_divider_ops;
>  struct clk *clk_register_divider(struct device *dev, const char *name,
>                const char *parent_name, unsigned long flags,
>                void __iomem *reg, u8 shift, u8 width,
> @@ -252,6 +255,7 @@ struct clk_mux {
>  #define CLK_MUX_INDEX_ONE              BIT(0)
>  #define CLK_MUX_INDEX_BIT              BIT(1)
>
> +extern const struct clk_ops clk_mux_ops;
>  struct clk *clk_register_mux(struct device *dev, const char *name,
>                char **parent_names, u8 num_parents, unsigned long flags,
>                void __iomem *reg, u8 shift, u8 width,
> --
> 1.7.5.4
>
>
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