clk: versatile: clk-icst: Ensure clock names are unique

Commit 2d3de197a818 ("ARM: dts: arm: Update ICST clock nodes 'reg' and
node names") moved to using generic node names. That results in trying
to register multiple clocks with the same name. Fix this by including
the unit-address in the clock name.

Fixes: 2d3de197a818 ("ARM: dts: arm: Update ICST clock nodes 'reg' and node names")
Cc: [e-mail]
Cc: Linus Walleij <[e-mail]>
Cc: Stephen Boyd <[e-mail]>
Cc: [e-mail]
Cc: [e-mail]
Signed-off-by: Rob Herring <[e-mail]>
Reviewed-by: Stephen Boyd <[e-mail]>
Reviewed-by: Linus Walleij <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

drivers/clk/versatile/clk-icst.c

···
 	struct device_node *parent;
 	struct regmap *map;
 	struct clk_icst_desc icst_desc;
-	const char *name = np->name;
+	const char *name;
 	const char *parent_name;
 	struct clk *regclk;
 	enum icst_control_type ctype;
···
 		icst_desc.params = &icst525_apcp_cm_params;
 		ctype = ICST_INTEGRATOR_CP_CM_MEM;
 	} else {
-		pr_err("unknown ICST clock %s\n", name);
+		pr_err("unknown ICST clock %pOF\n", np);
 		return;
 	}
 
 	/* Parent clock name is not the same as node parent */
 	parent_name = of_clk_get_parent_name(np, 0);
+	name = kasprintf(GFP_KERNEL, "%pOFP", np);
 
 	regclk = icst_clk_setup(NULL, &icst_desc, name, parent_name, map, ctype);
 	if (IS_ERR(regclk)) {
+		kfree(name);
 		pr_err("error setting up syscon ICST clock %s\n", name);
 		return;
 	}