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video: display_timing: make parameter const

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As the device_node pointer is not changed in of_get_display_timing and
parse_timing_property it can be a const pointer.

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Steffen Trumtrar 2013-05-27 12:33:05 +00:00 committed by Dave Airlie
parent 0dd99f1bfc
commit f583662347
1 changed files with 3 additions and 2 deletions
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5
drivers/video/of_display_timing.c
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@ -23,7 +23,7 @@
* Every display_timing can be specified with either just the typical value or
* a range consisting of min/typ/max. This function helps handling this
**/
static int parse_timing_property(struct device_node *np, const char *name,
static int parse_timing_property(const struct device_node *np, const char *name,
struct timing_entry *result)
{
struct property *prop;
@ -56,7 +56,8 @@ static int parse_timing_property(struct device_node *np, const char *name,
* of_get_display_timing - parse display_timing entry from device_node
* @np: device_node with the properties
**/
static struct display_timing *of_get_display_timing(struct device_node *np)
static struct display_timing *of_get_display_timing(const struct device_node
*np)
{
struct display_timing *dt;
u32 val = 0;