[PATCH 02/12] clk: composite: add clk_hw registration functions

[Ahmad Fatoum]

Save users the hassle of opencoding by providing wrappers with the same
Linux semantics: names are duplicated, same arguments and struct clk_hw
is returned.

Signed-off-by: Ahmad Fatoum <a.fatoum at pengutronix.de>
---
 drivers/clk/clk-composite.c | 25 +++++++++++++++++++++++++
 include/linux/clk.h         |  8 ++++++++
 2 files changed, 33 insertions(+)

diff --git a/drivers/clk/clk-composite.c b/drivers/clk/clk-composite.c
index 479ac5e8ef53..63056b769647 100644
--- a/drivers/clk/clk-composite.c
+++ b/drivers/clk/clk-composite.c
@@ -171,3 +171,28 @@ err:
 	kfree(composite);
 	return 0;
 }
+
+struct clk_hw *clk_hw_register_composite(struct device_d *dev,
+		const char *name, const char * const *parent_names,
+		int num_parents,
+		struct clk_hw *mux_hw, const struct clk_ops *mux_ops,
+		struct clk_hw *rate_hw, const struct clk_ops *rate_ops,
+		struct clk_hw *gate_hw, const struct clk_ops *gate_ops,
+		unsigned long flags)
+{
+	struct clk *clk;
+	mux_hw->clk.ops = mux_ops;
+	rate_hw->clk.ops = rate_ops;
+	gate_hw->clk.ops = gate_ops;
+
+	parent_names = memdup_array(parent_names, num_parents);
+	if (!parent_names)
+		return ERR_PTR(-ENOMEM);
+
+	clk = clk_register_composite(xstrdup(name), parent_names, num_parents,
+				      mux_hw ? &mux_hw->clk : NULL,
+				      rate_hw ? &rate_hw->clk : NULL,
+				      gate_hw ? &gate_hw->clk : NULL,
+				      flags);
+	return clk_to_clk_hw(clk);
+}
diff --git a/include/linux/clk.h b/include/linux/clk.h
index ffc1ac8489b0..f4aa5c7c57f0 100644
--- a/include/linux/clk.h
+++ b/include/linux/clk.h
@@ -676,6 +676,14 @@ struct clk *clk_register_composite(const char *name,
 			struct clk *gate_clk,
 			unsigned long flags);
 
+struct clk_hw *clk_hw_register_composite(struct device_d *dev,
+		const char *name, const char * const *parent_names,
+		int num_parents,
+		struct clk_hw *mux_hw, const struct clk_ops *mux_ops,
+		struct clk_hw *rate_hw, const struct clk_ops *rate_ops,
+		struct clk_hw *gate_hw, const struct clk_ops *gate_ops,
+		unsigned long flags);
+
 static inline const char *clk_hw_get_name(struct clk_hw *hw)
 {
 	return hw->clk.name;
-- 
2.30.2