linux-kernel - [PATCH 08/13] clk: declare clk_ops of basic clks in clk-provider.h

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Date:	Wed, 11 Apr 2012 18:02:46 -0700
From:	Mike Turquette <mturquette@...aro.org>
To:	<arnd.bergmann@...aro.org>
CC:	<linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linaro-dev@...ts.linaro.org>, <patches@...aro.org>,
	Shawn Guo <shawn.guo@...aro.org>,
	Mike Turquette <mturquette@...aro.org>,
	Olof Johansson <olof@...om.net>,
	Russell King <linux@....linux.org.uk>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Richard Zhao <richard.zhao@...aro.org>,
	Saravana Kannan <skannan@...eaurora.org>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Andrew Lunn <andrew@...n.ch>, Rajendra Nayak <rnayak@...com>,
	Viresh Kumar <viresh.kumar@...com>
Subject: [PATCH 08/13] clk: declare clk_ops of basic clks in clk-provider.h

From: Shawn Guo <shawn.guo@...aro.org>

Besides the static initialization, the clk_ops of basic clks could
also be used by particular clk type being subclass of the basic clks.

For example, clk_busy_divider has the same clk_ops as clk_divider,
except it has to wait for a busy bit before return success with
.set_rate.  clk_busy_divider will somehow reuse clk_ops of clk_divider.

Since clk-provider.h is included by clk-private.h, it's safe to move
those clk_ops declaration of basic clks form  clk-private.h into
clk-provider.h, so that implementation of clks like clk_busy_divider
above do not need to include clk-private.h to access those clk_ops.

Signed-off-by: Shawn Guo <shawn.guo@...aro.org>
Signed-off-by: Mike Turquette <mturquette@...aro.org>
Cc: Arnd Bergman <arnd.bergmann@...aro.org>
Cc: Olof Johansson <olof@...om.net>
Cc: Russell King <linux@....linux.org.uk>
Cc: Sascha Hauer <s.hauer@...gutronix.de>
Cc: Richard Zhao <richard.zhao@...aro.org>
Cc: Saravana Kannan <skannan@...eaurora.org>
Cc: Mark Brown <broonie@...nsource.wolfsonmicro.com>
Cc: Andrew Lunn <andrew@...n.ch>
Cc: Rajendra Nayak <rnayak@...com>
Cc: Viresh Kumar <viresh.kumar@...com>
---
 include/linux/clk-private.h  |    8 --------
 include/linux/clk-provider.h |    4 ++++
 2 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/include/linux/clk-private.h b/include/linux/clk-private.h
index 5f4ccd7..f19fee0 100644
--- a/include/linux/clk-private.h
+++ b/include/linux/clk-private.h
@@ -55,8 +55,6 @@ struct clk {
  * alternative macro for static initialization
  */
 
-extern const struct clk_ops clk_fixed_rate_ops;
-
 #define DEFINE_CLK_FIXED_RATE(_name, _flags, _rate,		\
 				_fixed_rate_flags)		\
 	static struct clk _name;				\
@@ -78,8 +76,6 @@ extern const struct clk_ops clk_fixed_rate_ops;
 		.flags = _flags,				\
 	};
 
-extern const struct clk_ops clk_gate_ops;
-
 #define DEFINE_CLK_GATE(_name, _parent_name, _parent_ptr,	\
 				_flags, _reg, _bit_idx,		\
 				_gate_flags, _lock)		\
@@ -110,8 +106,6 @@ extern const struct clk_ops clk_gate_ops;
 		.flags = _flags,				\
 	};
 
-extern const struct clk_ops clk_divider_ops;
-
 #define DEFINE_CLK_DIVIDER(_name, _parent_name, _parent_ptr,	\
 				_flags, _reg, _shift, _width,	\
 				_divider_flags, _lock)		\
@@ -143,8 +137,6 @@ extern const struct clk_ops clk_divider_ops;
 		.flags = _flags,				\
 	};
 
-extern const struct clk_ops clk_mux_ops;
-
 #define DEFINE_CLK_MUX(_name, _parent_names, _parents, _flags,	\
 				_reg, _shift, _width,		\
 				_mux_flags, _lock)		\
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index 5508897..6eb8e5d 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -149,6 +149,7 @@ struct clk_fixed_rate {
 	u8		flags;
 };
 
+extern const struct clk_ops clk_fixed_rate_ops;
 struct clk *clk_register_fixed_rate(struct device *dev, const char *name,
 		const char *parent_name, unsigned long flags,
 		unsigned long fixed_rate);
@@ -180,6 +181,7 @@ struct clk_gate {
 
 #define CLK_GATE_SET_TO_DISABLE		BIT(0)
 
+extern const struct clk_ops clk_gate_ops;
 struct clk *clk_register_gate(struct device *dev, const char *name,
 		const char *parent_name, unsigned long flags,
 		void __iomem *reg, u8 bit_idx,
@@ -218,6 +220,7 @@ struct clk_divider {
 #define CLK_DIVIDER_ONE_BASED		BIT(0)
 #define CLK_DIVIDER_POWER_OF_TWO	BIT(1)
 
+extern const struct clk_ops clk_divider_ops;
 struct clk *clk_register_divider(struct device *dev, const char *name,
 		const char *parent_name, unsigned long flags,
 		void __iomem *reg, u8 shift, u8 width,
@@ -252,6 +255,7 @@ struct clk_mux {
 #define CLK_MUX_INDEX_ONE		BIT(0)
 #define CLK_MUX_INDEX_BIT		BIT(1)
 
+extern const struct clk_ops clk_mux_ops;
 struct clk *clk_register_mux(struct device *dev, const char *name,
 		char **parent_names, u8 num_parents, unsigned long flags,
 		void __iomem *reg, u8 shift, u8 width,
-- 
1.7.5.4

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