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authorLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>2016-10-03 16:55:48 +0300
committerLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>2016-11-14 04:35:00 +0300
commitf5a000c9f8c19608f19f16d01338f0738ce3757f (patch)
tree6bd43df5a9aeeb0a4ffcf33d1e8a822326284465
parent1001354ca34179f3db924eb66672442a173147dc (diff)
downloadlinux-f5a000c9f8c19608f19f16d01338f0738ce3757f.tar.xz
video: of: Constify node argument to display timing functions
The node pointer passed to the display timing functions is never modified, make it const. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
-rw-r--r--drivers/video/of_display_timing.c6
-rw-r--r--include/video/of_display_timing.h15
2 files changed, 11 insertions, 10 deletions
diff --git a/drivers/video/of_display_timing.c b/drivers/video/of_display_timing.c
index 8a1076beecd3..26c88f7839d2 100644
--- a/drivers/video/of_display_timing.c
+++ b/drivers/video/of_display_timing.c
@@ -110,7 +110,7 @@ static int of_parse_display_timing(const struct device_node *np,
* @name: name of the timing node
* @dt: display_timing struct to fill
**/
-int of_get_display_timing(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 device_node *timing_np;
@@ -133,7 +133,7 @@ EXPORT_SYMBOL_GPL(of_get_display_timing);
* of_get_display_timings - parse all display_timing entries from a device_node
* @np: device_node with the subnodes
**/
-struct display_timings *of_get_display_timings(struct device_node *np)
+struct display_timings *of_get_display_timings(const struct device_node *np)
{
struct device_node *timings_np;
struct device_node *entry;
@@ -249,7 +249,7 @@ 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(struct device_node *np)
+int of_display_timings_exist(const struct device_node *np)
{
struct device_node *timings_np;
diff --git a/include/video/of_display_timing.h b/include/video/of_display_timing.h
index ea755b5616d8..956455fc9f9a 100644
--- a/include/video/of_display_timing.h
+++ b/include/video/of_display_timing.h
@@ -16,21 +16,22 @@ struct display_timings;
#define OF_USE_NATIVE_MODE -1
#ifdef CONFIG_OF
-int of_get_display_timing(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_timings *of_get_display_timings(struct device_node *np);
-int of_display_timings_exist(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
-static inline int of_get_display_timing(struct device_node *np, const char *name,
- struct display_timing *dt)
+static inline int of_get_display_timing(const struct device_node *np,
+ const char *name, struct display_timing *dt)
{
return -ENOSYS;
}
-static inline struct display_timings *of_get_display_timings(struct device_node *np)
+static inline struct display_timings *
+of_get_display_timings(const struct device_node *np)
{
return NULL;
}
-static inline int of_display_timings_exist(struct device_node *np)
+static inline int of_display_timings_exist(const struct device_node *np)
{
return -ENOSYS;
}