* [PATCH v2] clk: No-op CLK_OF_DECLARE if not enabled
@ 2017-03-14 15:37 Andrey Smirnov
2017-03-15 8:07 ` Sascha Hauer
0 siblings, 1 reply; 2+ messages in thread
From: Andrey Smirnov @ 2017-03-14 15:37 UTC (permalink / raw)
To: barebox; +Cc: Andrey Smirnov
Instead of wrapping each defenition of CLK_OF_DECLARE hook with
preprocessor guards, change the definition of CLK_OF_DECLARE to expand
into no-op if COMMON_CLK_OF_PROVIDER is not enabled.
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
---
drivers/clk/clk-fixed-factor.c | 2 --
drivers/clk/clk-fixed.c | 3 +--
include/linux/clk.h | 31 +++++++++++++++++++++++++------
3 files changed, 26 insertions(+), 10 deletions(-)
diff --git a/drivers/clk/clk-fixed-factor.c b/drivers/clk/clk-fixed-factor.c
index a3dbf33..0be4855 100644
--- a/drivers/clk/clk-fixed-factor.c
+++ b/drivers/clk/clk-fixed-factor.c
@@ -93,7 +93,6 @@ struct clk *clk_fixed_factor(const char *name,
return &f->clk;
}
-#if defined(CONFIG_COMMON_CLK_OF_PROVIDER)
/**
* of_fixed_factor_clk_setup() - Setup function for simple fixed factor clock
*/
@@ -127,4 +126,3 @@ static int of_fixed_factor_clk_setup(struct device_node *node)
}
CLK_OF_DECLARE(fixed_factor_clk, "fixed-factor-clock",
of_fixed_factor_clk_setup);
-#endif
diff --git a/drivers/clk/clk-fixed.c b/drivers/clk/clk-fixed.c
index f0f7fba..9fa9a93 100644
--- a/drivers/clk/clk-fixed.c
+++ b/drivers/clk/clk-fixed.c
@@ -55,7 +55,6 @@ struct clk *clk_fixed(const char *name, int rate)
return &fix->clk;
}
-#if defined(CONFIG_COMMON_CLK_OF_PROVIDER)
/**
* of_fixed_clk_setup() - Setup function for simple fixed rate clock
*/
@@ -76,4 +75,4 @@ static int of_fixed_clk_setup(struct device_node *node)
return of_clk_add_provider(node, of_clk_src_simple_get, clk);
}
CLK_OF_DECLARE(fixed_clk, "fixed-clock", of_fixed_clk_setup);
-#endif
+
diff --git a/include/linux/clk.h b/include/linux/clk.h
index a061398..081a859 100644
--- a/include/linux/clk.h
+++ b/include/linux/clk.h
@@ -324,16 +324,13 @@ struct clk *clk_register_composite(const char *name,
struct device_node;
struct of_phandle_args;
+#if defined(CONFIG_COMMON_CLK_OF_PROVIDER)
+
#define CLK_OF_DECLARE(name, compat, fn) \
const struct of_device_id __clk_of_table_##name \
__attribute__ ((unused,section (".__clk_of_table"))) \
= { .compatible = compat, .data = fn }
-#if defined(CONFIG_COMMON_CLK_OF_PROVIDER)
-int of_clk_add_provider(struct device_node *np,
- struct clk *(*clk_src_get)(struct of_phandle_args *args,
- void *data),
- void *data);
void of_clk_del_provider(struct device_node *np);
typedef int (*of_clk_init_cb_t)(struct device_node *);
@@ -349,11 +346,27 @@ struct clk *of_clk_get(struct device_node *np, int index);
struct clk *of_clk_get_by_name(struct device_node *np, const char *name);
struct clk *of_clk_get_from_provider(struct of_phandle_args *clkspec);
unsigned int of_clk_get_parent_count(struct device_node *np);
-char *of_clk_get_parent_name(struct device_node *np, unsigned int index);
int of_clk_parent_fill(struct device_node *np, const char **parents,
unsigned int size);
int of_clk_init(struct device_node *root, const struct of_device_id *matches);
#else
+
+
+/*
+ * Create a dummy variable to avoid 'unused function'
+ * warnings. Compiler should be smart enough to throw it out.
+ */
+#define CLK_OF_DECLARE(name, compat, fn) \
+static const struct of_device_id __clk_of_table_##name \
+__attribute__ ((unused)) = { .data = fn }
+
+
+static inline struct clk *
+of_clk_src_simple_get(struct of_phandle_args *clkspec, void *data)
+{
+ return ERR_PTR(-ENOENT);
+}
+
static inline struct clk *of_clk_get(struct device_node *np, int index)
{
return ERR_PTR(-ENOENT);
@@ -374,4 +387,10 @@ struct string_list;
int clk_name_complete(struct string_list *sl, char *instr);
+int of_clk_add_provider(struct device_node *np,
+ struct clk *(*clk_src_get)(struct of_phandle_args *args,
+ void *data),
+ void *data);
+char *of_clk_get_parent_name(struct device_node *np, unsigned int index);
+
#endif
--
2.9.3
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH v2] clk: No-op CLK_OF_DECLARE if not enabled
2017-03-14 15:37 [PATCH v2] clk: No-op CLK_OF_DECLARE if not enabled Andrey Smirnov
@ 2017-03-15 8:07 ` Sascha Hauer
0 siblings, 0 replies; 2+ messages in thread
From: Sascha Hauer @ 2017-03-15 8:07 UTC (permalink / raw)
To: Andrey Smirnov; +Cc: barebox
On Tue, Mar 14, 2017 at 08:37:35AM -0700, Andrey Smirnov wrote:
> Instead of wrapping each defenition of CLK_OF_DECLARE hook with
> preprocessor guards, change the definition of CLK_OF_DECLARE to expand
> into no-op if COMMON_CLK_OF_PROVIDER is not enabled.
>
> Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
> ---
> drivers/clk/clk-fixed-factor.c | 2 --
> drivers/clk/clk-fixed.c | 3 +--
> include/linux/clk.h | 31 +++++++++++++++++++++++++------
> 3 files changed, 26 insertions(+), 10 deletions(-)
Applied, thanks
Sascha
>
> diff --git a/drivers/clk/clk-fixed-factor.c b/drivers/clk/clk-fixed-factor.c
> index a3dbf33..0be4855 100644
> --- a/drivers/clk/clk-fixed-factor.c
> +++ b/drivers/clk/clk-fixed-factor.c
> @@ -93,7 +93,6 @@ struct clk *clk_fixed_factor(const char *name,
> return &f->clk;
> }
>
> -#if defined(CONFIG_COMMON_CLK_OF_PROVIDER)
> /**
> * of_fixed_factor_clk_setup() - Setup function for simple fixed factor clock
> */
> @@ -127,4 +126,3 @@ static int of_fixed_factor_clk_setup(struct device_node *node)
> }
> CLK_OF_DECLARE(fixed_factor_clk, "fixed-factor-clock",
> of_fixed_factor_clk_setup);
> -#endif
> diff --git a/drivers/clk/clk-fixed.c b/drivers/clk/clk-fixed.c
> index f0f7fba..9fa9a93 100644
> --- a/drivers/clk/clk-fixed.c
> +++ b/drivers/clk/clk-fixed.c
> @@ -55,7 +55,6 @@ struct clk *clk_fixed(const char *name, int rate)
> return &fix->clk;
> }
>
> -#if defined(CONFIG_COMMON_CLK_OF_PROVIDER)
> /**
> * of_fixed_clk_setup() - Setup function for simple fixed rate clock
> */
> @@ -76,4 +75,4 @@ static int of_fixed_clk_setup(struct device_node *node)
> return of_clk_add_provider(node, of_clk_src_simple_get, clk);
> }
> CLK_OF_DECLARE(fixed_clk, "fixed-clock", of_fixed_clk_setup);
> -#endif
> +
> diff --git a/include/linux/clk.h b/include/linux/clk.h
> index a061398..081a859 100644
> --- a/include/linux/clk.h
> +++ b/include/linux/clk.h
> @@ -324,16 +324,13 @@ struct clk *clk_register_composite(const char *name,
> struct device_node;
> struct of_phandle_args;
>
> +#if defined(CONFIG_COMMON_CLK_OF_PROVIDER)
> +
> #define CLK_OF_DECLARE(name, compat, fn) \
> const struct of_device_id __clk_of_table_##name \
> __attribute__ ((unused,section (".__clk_of_table"))) \
> = { .compatible = compat, .data = fn }
>
> -#if defined(CONFIG_COMMON_CLK_OF_PROVIDER)
> -int of_clk_add_provider(struct device_node *np,
> - struct clk *(*clk_src_get)(struct of_phandle_args *args,
> - void *data),
> - void *data);
> void of_clk_del_provider(struct device_node *np);
>
> typedef int (*of_clk_init_cb_t)(struct device_node *);
> @@ -349,11 +346,27 @@ struct clk *of_clk_get(struct device_node *np, int index);
> struct clk *of_clk_get_by_name(struct device_node *np, const char *name);
> struct clk *of_clk_get_from_provider(struct of_phandle_args *clkspec);
> unsigned int of_clk_get_parent_count(struct device_node *np);
> -char *of_clk_get_parent_name(struct device_node *np, unsigned int index);
> int of_clk_parent_fill(struct device_node *np, const char **parents,
> unsigned int size);
> int of_clk_init(struct device_node *root, const struct of_device_id *matches);
> #else
> +
> +
> +/*
> + * Create a dummy variable to avoid 'unused function'
> + * warnings. Compiler should be smart enough to throw it out.
> + */
> +#define CLK_OF_DECLARE(name, compat, fn) \
> +static const struct of_device_id __clk_of_table_##name \
> +__attribute__ ((unused)) = { .data = fn }
> +
> +
> +static inline struct clk *
> +of_clk_src_simple_get(struct of_phandle_args *clkspec, void *data)
> +{
> + return ERR_PTR(-ENOENT);
> +}
> +
> static inline struct clk *of_clk_get(struct device_node *np, int index)
> {
> return ERR_PTR(-ENOENT);
> @@ -374,4 +387,10 @@ struct string_list;
>
> int clk_name_complete(struct string_list *sl, char *instr);
>
> +int of_clk_add_provider(struct device_node *np,
> + struct clk *(*clk_src_get)(struct of_phandle_args *args,
> + void *data),
> + void *data);
> +char *of_clk_get_parent_name(struct device_node *np, unsigned int index);
> +
> #endif
> --
> 2.9.3
>
>
> _______________________________________________
> barebox mailing list
> barebox@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/barebox
>
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