clk: tegra: Fix constness for peripheral clocks

checkpatch now warns for const ** and expects const * const * to be used
instead. This means we have to update the prototypes and function
declarations to handle this change.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Tested-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

drivers/clk/tegra/clk-periph.c

@@ -138,7 +138,7 @@ static const struct clk_ops tegra_clk_periph_no_gate_ops = {
 };
 
 static struct clk *_tegra_clk_register_periph(const char *name,
-			const char **parent_names, int num_parents,
+			const char * const *parent_names, int num_parents,
 			struct tegra_clk_periph *periph,
 			void __iomem *clk_base, u32 offset,
 			unsigned long flags)
@@ -186,7 +186,7 @@ static struct clk *_tegra_clk_register_periph(const char *name,
 }
 
 struct clk *tegra_clk_register_periph(const char *name,
-		const char **parent_names, int num_parents,
+		const char * const *parent_names, int num_parents,
 		struct tegra_clk_periph *periph, void __iomem *clk_base,
 		u32 offset, unsigned long flags)
 {

drivers/clk/tegra/clk.h

@@ -586,7 +586,7 @@ struct tegra_clk_periph {
 
 extern const struct clk_ops tegra_clk_periph_ops;
 struct clk *tegra_clk_register_periph(const char *name,
-		const char **parent_names, int num_parents,
+		const char * const *parent_names, int num_parents,
 		struct tegra_clk_periph *periph, void __iomem *clk_base,
 		u32 offset, unsigned long flags);
 struct clk *tegra_clk_register_periph_nodiv(const char *name,
@@ -626,7 +626,7 @@ struct tegra_periph_init_data {
 	const char *name;
 	int clk_id;
 	union {
-		const char **parent_names;
+		const char *const *parent_names;
 		const char *parent_name;
 	} p;
 	int num_parents;