bus: ti-sysc: Use of_property_present() for testing DT property presence

It is preferred to use typed property access functions (i.e.
of_property_read_<type> functions) rather than low-level
of_get_property/of_find_property functions for reading properties. As
part of this, convert of_get_property/of_find_property calls to the
recently added of_property_present() helper when we just want to test
for presence of a property and nothing more.

Signed-off-by: Rob Herring <robh@kernel.org>
Message-Id: <20230310144734.1546656-1-robh@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Author: robherring

drivers/bus/ti-sysc.c

@@ -941,7 +941,7 @@ static int sysc_map_and_check_registers(struct sysc *ddata)
 
 	sysc_check_children(ddata);
 
-	if (!of_get_property(np, "reg", NULL))
+	if (!of_property_present(np, "reg"))
 		return 0;
 
 	error = sysc_parse_registers(ddata);