[PATCH 09/14] clk: fixed-factor: Add hw based registration APIs

[Stephen Boyd]

Add registration APIs in the clk fixed-factor code to return
struct clk_hw pointers instead of struct clk pointers. This way
we hide the struct clk pointer from providers unless they need to
use consumer facing APIs.

Signed-off-by: Stephen Boyd <sb...@codeaurora.org>
---
 drivers/clk/clk-fixed-factor.c | 41 ++++++++++++++++++++++++++++++++++-------
 include/linux/clk-provider.h   |  4 ++++
 2 files changed, 38 insertions(+), 7 deletions(-)

diff --git a/drivers/clk/clk-fixed-factor.c b/drivers/clk/clk-fixed-factor.c
index 83de57aeceea..c10b2eb2759f 100644
--- a/drivers/clk/clk-fixed-factor.c
+++ b/drivers/clk/clk-fixed-factor.c
@@ -70,13 +70,14 @@ const struct clk_ops clk_fixed_factor_ops = {
 };
 EXPORT_SYMBOL_GPL(clk_fixed_factor_ops);
 
-struct clk *clk_register_fixed_factor(struct device *dev, const char *name,
-               const char *parent_name, unsigned long flags,
+struct clk_hw *clk_hw_register_fixed_factor(struct device *dev,
+               const char *name, const char *parent_name, unsigned long flags,
                unsigned int mult, unsigned int div)
 {
        struct clk_fixed_factor *fix;
        struct clk_init_data init;
-       struct clk *clk;
+       struct clk_hw *hw;
+       int ret;
 
        fix = kmalloc(sizeof(*fix), GFP_KERNEL);
        if (!fix)
@@ -93,15 +94,41 @@ struct clk *clk_register_fixed_factor(struct device *dev, 
const char *name,
        init.parent_names = &parent_name;
        init.num_parents = 1;
 
-       clk = clk_register(dev, &fix->hw);
-
-       if (IS_ERR(clk))
+       hw = &fix->hw;
+       ret = clk_hw_register(dev, hw);
+       if (ret) {
                kfree(fix);
+               hw = ERR_PTR(ret);
+       }
+
+       return hw;
+}
+EXPORT_SYMBOL_GPL(clk_hw_register_fixed_factor);
+
+struct clk *clk_register_fixed_factor(struct device *dev, const char *name,
+               const char *parent_name, unsigned long flags,
+               unsigned int mult, unsigned int div)
+{
+       struct clk_hw *hw;
 
-       return clk;
+       hw = clk_hw_register_fixed_factor(dev, name, parent_name, flags, mult,
+                                         div);
+       if (IS_ERR(hw))
+               return ERR_CAST(hw);
+       return hw->clk;
 }
 EXPORT_SYMBOL_GPL(clk_register_fixed_factor);
 
+void clk_hw_unregister_fixed_factor(struct clk_hw *hw)
+{
+       struct clk_fixed_factor *fix;
+
+       fix = to_clk_fixed_factor(hw);
+
+       clk_hw_unregister(hw);
+       kfree(fix);
+}
+
 #ifdef CONFIG_OF
 /**
  * of_fixed_factor_clk_setup() - Setup function for simple fixed factor clock
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index df6353a086b9..d4d65f60b85e 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -513,6 +513,10 @@ extern const struct clk_ops clk_fixed_factor_ops;
 struct clk *clk_register_fixed_factor(struct device *dev, const char *name,
                const char *parent_name, unsigned long flags,
                unsigned int mult, unsigned int div);
+struct clk_hw *clk_hw_register_fixed_factor(struct device *dev,
+               const char *name, const char *parent_name, unsigned long flags,
+               unsigned int mult, unsigned int div);
+void clk_hw_unregister_fixed_factor(struct clk_hw *hw);
 
 /**
  * struct clk_fractional_divider - adjustable fractional divider clock
-- 
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