clk: nomadik: Migrate to clk_hw based OF and registration APIs

Now that we have clk_hw based provider APIs to register clks, we
can get rid of struct clk pointers while registering clks in
these drivers, allowing us to move closer to a clear split of
consumer and provider clk APIs.

Signed-off-by: Stephen Boyd <[e-mail]>
Acked-by: Linus Walleij <[e-mail]>
Signed-off-by: Stephen Boyd <[e-mail]>

drivers/clk/clk-nomadik.c

···
 	.recalc_rate = pll_clk_recalc_rate,
 };
 
-static struct clk * __init
+static struct clk_hw * __init
 pll_clk_register(struct device *dev, const char *name,
 		 const char *parent_name, u32 id)
 {
-	struct clk *clk;
+	int ret;
 	struct clk_pll *pll;
 	struct clk_init_data init;
 
···
 
 	pr_debug("register PLL1 clock \"%s\"\n", name);
 
-	clk = clk_register(dev, &pll->hw);
-	if (IS_ERR(clk))
+	ret = clk_hw_register(dev, &pll->hw);
+	if (ret) {
 		kfree(pll);
+		return ERR_PTR(ret);
+	}
 
-	return clk;
+	return &pll->hw;
 }
 
 /*
···
 	.recalc_rate = src_clk_recalc_rate,
 };
 
-static struct clk * __init
+static struct clk_hw * __init
 src_clk_register(struct device *dev, const char *name,
 		 const char *parent_name, u8 id)
 {
-	struct clk *clk;
+	int ret;
 	struct clk_src *sclk;
 	struct clk_init_data init;
 
···
 	pr_debug("register clock \"%s\" ID: %d group: %d bits: %08x\n",
 		 name, id, sclk->group1, sclk->clkbit);
 
-	clk = clk_register(dev, &sclk->hw);
-	if (IS_ERR(clk))
+	ret = clk_hw_register(dev, &sclk->hw);
+	if (ret) {
 		kfree(sclk);
+		return ERR_PTR(ret);
+	}
 
-	return clk;
+	return &sclk->hw;
 }
 
 #ifdef CONFIG_DEBUG_FS
···
 
 static void __init of_nomadik_pll_setup(struct device_node *np)
 {
-	struct clk *clk = ERR_PTR(-EINVAL);
+	struct clk_hw *hw;
 	const char *clk_name = np->name;
 	const char *parent_name;
 	u32 pll_id;
···
 		return;
 	}
 	parent_name = of_clk_get_parent_name(np, 0);
-	clk = pll_clk_register(NULL, clk_name, parent_name, pll_id);
-	if (!IS_ERR(clk))
-		of_clk_add_provider(np, of_clk_src_simple_get, clk);
+	hw = pll_clk_register(NULL, clk_name, parent_name, pll_id);
+	if (!IS_ERR(hw))
+		of_clk_add_hw_provider(np, of_clk_hw_simple_get, hw);
 }
 CLK_OF_DECLARE(nomadik_pll_clk,
 	"st,nomadik-pll-clock", of_nomadik_pll_setup);
 
 static void __init of_nomadik_hclk_setup(struct device_node *np)
 {
-	struct clk *clk = ERR_PTR(-EINVAL);
+	struct clk_hw *hw;
 	const char *clk_name = np->name;
 	const char *parent_name;
 
···
 	/*
 	 * The HCLK divides PLL1 with 1 (passthru), 2, 3 or 4.
 	 */
-	clk = clk_register_divider(NULL, clk_name, parent_name,
+	hw = clk_hw_register_divider(NULL, clk_name, parent_name,
 			   0, src_base + SRC_CR,
 			   13, 2,
 			   CLK_DIVIDER_ONE_BASED | CLK_DIVIDER_ALLOW_ZERO,
 			   &src_lock);
-	if (!IS_ERR(clk))
-		of_clk_add_provider(np, of_clk_src_simple_get, clk);
+	if (!IS_ERR(hw))
+		of_clk_add_hw_provider(np, of_clk_hw_simple_get, hw);
 }
 CLK_OF_DECLARE(nomadik_hclk_clk,
 	"st,nomadik-hclk-clock", of_nomadik_hclk_setup);
 
 static void __init of_nomadik_src_clk_setup(struct device_node *np)
 {
-	struct clk *clk = ERR_PTR(-EINVAL);
+	struct clk_hw *hw;
 	const char *clk_name = np->name;
 	const char *parent_name;
 	u32 clk_id;
···
 		return;
 	}
 	parent_name = of_clk_get_parent_name(np, 0);
-	clk = src_clk_register(NULL, clk_name, parent_name, clk_id);
-	if (!IS_ERR(clk))
-		of_clk_add_provider(np, of_clk_src_simple_get, clk);
+	hw = src_clk_register(NULL, clk_name, parent_name, clk_id);
+	if (!IS_ERR(hw))
+		of_clk_add_hw_provider(np, of_clk_hw_simple_get, hw);
 }
 CLK_OF_DECLARE(nomadik_src_clk,
 	"st,nomadik-src-clock", of_nomadik_src_clk_setup);