video: display_timing: make parameter const
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>
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@ -23,7 +23,7 @@
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* Every display_timing can be specified with either just the typical value or
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* a range consisting of min/typ/max. This function helps handling this
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**/
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static int parse_timing_property(struct device_node *np, const char *name,
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static int parse_timing_property(const struct device_node *np, const char *name,
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struct timing_entry *result)
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{
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struct property *prop;
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@ -56,7 +56,8 @@ static int parse_timing_property(struct device_node *np, const char *name,
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* of_get_display_timing - parse display_timing entry from device_node
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* @np: device_node with the properties
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**/
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static struct display_timing *of_get_display_timing(struct device_node *np)
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static struct display_timing *of_get_display_timing(const struct device_node
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*np)
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{
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struct display_timing *dt;
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u32 val = 0;
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