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Date: Mon, 8 Feb 2016 17:45:37 -0800
From: Stephen Boyd <sboyd@...eaurora.org>
To: Mike Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...eaurora.org>
Cc: linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 10/14] clk: fractional-divider: Add hw based registration APIs
Add registration APIs in the clk fractional divider 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 <sboyd@...eaurora.org>
---
drivers/clk/clk-fractional-divider.c | 40 +++++++++++++++++++++++++++++++-----
include/linux/clk-provider.h | 5 +++++
2 files changed, 40 insertions(+), 5 deletions(-)
diff --git a/drivers/clk/clk-fractional-divider.c b/drivers/clk/clk-fractional-divider.c
index 5c4955e33f7a..e7a315e840e6 100644
--- a/drivers/clk/clk-fractional-divider.c
+++ b/drivers/clk/clk-fractional-divider.c
@@ -118,14 +118,15 @@ const struct clk_ops clk_fractional_divider_ops = {
};
EXPORT_SYMBOL_GPL(clk_fractional_divider_ops);
-struct clk *clk_register_fractional_divider(struct device *dev,
+struct clk_hw *clk_hw_register_fractional_divider(struct device *dev,
const char *name, const char *parent_name, unsigned long flags,
void __iomem *reg, u8 mshift, u8 mwidth, u8 nshift, u8 nwidth,
u8 clk_divider_flags, spinlock_t *lock)
{
struct clk_fractional_divider *fd;
struct clk_init_data init;
- struct clk *clk;
+ struct clk_hw *hw;
+ int ret;
fd = kzalloc(sizeof(*fd), GFP_KERNEL);
if (!fd)
@@ -148,10 +149,39 @@ struct clk *clk_register_fractional_divider(struct device *dev,
fd->lock = lock;
fd->hw.init = &init;
- clk = clk_register(dev, &fd->hw);
- if (IS_ERR(clk))
+ hw = &fd->hw;
+ ret = clk_hw_register(dev, hw);
+ if (ret) {
kfree(fd);
+ hw = ERR_PTR(ret);
+ }
+
+ return hw;
+}
+EXPORT_SYMBOL_GPL(clk_hw_register_fractional_divider);
- return clk;
+struct clk *clk_register_fractional_divider(struct device *dev,
+ const char *name, const char *parent_name, unsigned long flags,
+ void __iomem *reg, u8 mshift, u8 mwidth, u8 nshift, u8 nwidth,
+ u8 clk_divider_flags, spinlock_t *lock)
+{
+ struct clk_hw *hw;
+
+ hw = clk_hw_register_fractional_divider(dev, name, parent_name, flags,
+ reg, mshift, mwidth, nshift, nwidth, clk_divider_flags,
+ lock);
+ if (IS_ERR(hw))
+ return ERR_CAST(hw);
+ return hw->clk;
}
EXPORT_SYMBOL_GPL(clk_register_fractional_divider);
+
+void clk_hw_unregister_fractional_divider(struct clk_hw *hw)
+{
+ struct clk_fractional_divider *fd;
+
+ fd = to_clk_fd(hw);
+
+ clk_hw_unregister(hw);
+ kfree(fd);
+}
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index d4d65f60b85e..549ed3844876 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -549,6 +549,11 @@ struct clk *clk_register_fractional_divider(struct device *dev,
const char *name, const char *parent_name, unsigned long flags,
void __iomem *reg, u8 mshift, u8 mwidth, u8 nshift, u8 nwidth,
u8 clk_divider_flags, spinlock_t *lock);
+struct clk_hw *clk_hw_register_fractional_divider(struct device *dev,
+ const char *name, const char *parent_name, unsigned long flags,
+ void __iomem *reg, u8 mshift, u8 mwidth, u8 nshift, u8 nwidth,
+ u8 clk_divider_flags, spinlock_t *lock);
+void clk_hw_unregister_fractional_divider(struct clk_hw *hw);
/**
* struct clk_multiplier - adjustable multiplier clock
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
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