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video: of: display_timing: Remove of_display_timings_exist() function

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Since introduction of of_display_timings_exist() function in commit
cc3f414cf2 ("video: add of helper for display timings/videomode") it
didn't attract any users, and the function has no potential, because
of_get_display_timings() covers its functionality and does more.

Drop the unused exported function from the kernel.

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
This commit is contained in:
Vladimir Zapolskiy
2018-03-12 17:06:54 +01:00
committed by Bartlomiej Zolnierkiewicz
parent 9cbaf4d969
commit a2a348014a
2 changed files with 0 additions and 25 deletions
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drivers/video/of_display_timing.c
-20
View File
@@ -244,23 +244,3 @@ dispfail:
return NULL; return NULL;
} }
EXPORT_SYMBOL_GPL(of_get_display_timings); EXPORT_SYMBOL_GPL(of_get_display_timings);
/**
* of_display_timings_exist - check if a display-timings node is provided
* @np: device_node with the timing
**/
int of_display_timings_exist(const struct device_node *np)
{
struct device_node *timings_np;
if (!np)
return -EINVAL;
timings_np = of_parse_phandle(np, "display-timings", 0);
if (!timings_np)
return -EINVAL;
of_node_put(timings_np);
return 1;
}
EXPORT_SYMBOL_GPL(of_display_timings_exist);
include/video/of_display_timing.h
-5
View File
@@ -19,7 +19,6 @@ struct display_timings;
int of_get_display_timing(const struct device_node *np, const char *name, int of_get_display_timing(const struct device_node *np, const char *name,
struct display_timing *dt); struct display_timing *dt);
struct display_timings *of_get_display_timings(const struct device_node *np); struct display_timings *of_get_display_timings(const struct device_node *np);
int of_display_timings_exist(const struct device_node *np);
#else #else
static inline int of_get_display_timing(const struct device_node *np, static inline int of_get_display_timing(const struct device_node *np,
const char *name, struct display_timing *dt) const char *name, struct display_timing *dt)
@@ -31,10 +30,6 @@ of_get_display_timings(const struct device_node *np)
{ {
return NULL; return NULL;
} }
static inline int of_display_timings_exist(const struct device_node *np)
{
return -ENOSYS;
}
#endif #endif
#endif #endif