clk: rockchip: Export some clock common APIs for module drivers

This is used by the Rockchip clk driver, export it to allow that
driver to be compiled as a module.
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20200914022225.23613-5-zhangqing@rock-chips.comSigned-off-by: Heiko Stuebner <heiko@sntech.de>

drivers/clk/rockchip/clk.c

@@ -360,8 +360,9 @@ static struct clk *rockchip_clk_register_factor_branch(const char *name,
 	return hw->clk;
 }
 
-struct rockchip_clk_provider * __init rockchip_clk_init(struct device_node *np,
-			void __iomem *base, unsigned long nr_clks)
+struct rockchip_clk_provider *rockchip_clk_init(struct device_node *np,
+						void __iomem *base,
+						unsigned long nr_clks)
 {
 	struct rockchip_clk_provider *ctx;
 	struct clk **clk_table;
@@ -393,14 +394,16 @@ struct rockchip_clk_provider * __init rockchip_clk_init(struct device_node *np,
 	kfree(ctx);
 	return ERR_PTR(-ENOMEM);
 }
+EXPORT_SYMBOL_GPL(rockchip_clk_init);
 
-void __init rockchip_clk_of_add_provider(struct device_node *np,
+void rockchip_clk_of_add_provider(struct device_node *np,
 				  struct rockchip_clk_provider *ctx)
 {
 	if (of_clk_add_provider(np, of_clk_src_onecell_get,
 				&ctx->clk_data))
 		pr_err("%s: could not register clk provider\n", __func__);
 }
+EXPORT_SYMBOL_GPL(rockchip_clk_of_add_provider);
 
 void rockchip_clk_add_lookup(struct rockchip_clk_provider *ctx,
 			     struct clk *clk, unsigned int id)
@@ -408,8 +411,9 @@ void rockchip_clk_add_lookup(struct rockchip_clk_provider *ctx,
 	if (ctx->clk_data.clks && id)
 		ctx->clk_data.clks[id] = clk;
 }
+EXPORT_SYMBOL_GPL(rockchip_clk_add_lookup);
 
-void __init rockchip_clk_register_plls(struct rockchip_clk_provider *ctx,
+void rockchip_clk_register_plls(struct rockchip_clk_provider *ctx,
 				struct rockchip_pll_clock *list,
 				unsigned int nr_pll, int grf_lock_offset)
 {
@@ -432,9 +436,9 @@ void __init rockchip_clk_register_plls(struct rockchip_clk_provider *ctx,
 		rockchip_clk_add_lookup(ctx, clk, list->id);
 	}
 }
+EXPORT_SYMBOL_GPL(rockchip_clk_register_plls);
 
-void __init rockchip_clk_register_branches(
-				      struct rockchip_clk_provider *ctx,
+void rockchip_clk_register_branches(struct rockchip_clk_provider *ctx,
 				    struct rockchip_clk_branch *list,
 				    unsigned int nr_clk)
 {
@@ -565,8 +569,9 @@ void __init rockchip_clk_register_branches(
 		rockchip_clk_add_lookup(ctx, clk, list->id);
 	}
 }
+EXPORT_SYMBOL_GPL(rockchip_clk_register_branches);
 
-void __init rockchip_clk_register_armclk(struct rockchip_clk_provider *ctx,
+void rockchip_clk_register_armclk(struct rockchip_clk_provider *ctx,
 				  unsigned int lookup_id,
 				  const char *name, const char *const *parent_names,
 				  u8 num_parents,
@@ -587,8 +592,9 @@ void __init rockchip_clk_register_armclk(struct rockchip_clk_provider *ctx,
 
 	rockchip_clk_add_lookup(ctx, clk, lookup_id);
 }
+EXPORT_SYMBOL_GPL(rockchip_clk_register_armclk);
 
-void __init rockchip_clk_protect_critical(const char *const clocks[],
+void rockchip_clk_protect_critical(const char *const clocks[],
 				   int nclocks)
 {
 	int i;
@@ -601,6 +607,7 @@ void __init rockchip_clk_protect_critical(const char *const clocks[],
 			clk_prepare_enable(clk);
 	}
 }
+EXPORT_SYMBOL_GPL(rockchip_clk_protect_critical);
 
 static void __iomem *rst_base;
 static unsigned int reg_restart;
@@ -620,7 +627,7 @@ static struct notifier_block rockchip_restart_handler = {
 	.priority = 128,
 };
 
-void __init
+void
 rockchip_register_restart_notifier(struct rockchip_clk_provider *ctx,
 				   unsigned int reg,
 				   void (*cb)(void))
@@ -635,3 +642,4 @@ rockchip_register_restart_notifier(struct rockchip_clk_provider *ctx,
 		pr_err("%s: cannot register restart handler, %d\n",
 		       __func__, ret);
 }
+EXPORT_SYMBOL_GPL(rockchip_register_restart_notifier);