[PATCH] i.MX: remove legacy clock support

[PATCH] i.MX: remove legacy clock support

[Sascha Hauer]

This removes the last leftovers from the i.MX legacy clock support.
As a bonus we get rid of mach/clock.h

----------------------------------------------------------------
Sascha Hauer (2):
      ARM: i.MX clk pllv1: move mxc_decode_pll code to its user
      ARM: i.MX remove last leftovers from legacy clock support

 arch/arm/mach-imx/Makefile             |    2 +-
 arch/arm/mach-imx/clk-pllv1.c          |   49 +++++-
 arch/arm/mach-imx/clk.c                |    3 +
 arch/arm/mach-imx/clk.h                |    3 +-
 arch/arm/mach-imx/mach-kzm_arm11_01.c  |    1 -
 arch/arm/plat-mxc/Makefile             |    2 +-
 arch/arm/plat-mxc/clock.c              |  257 --------------------------------
 arch/arm/plat-mxc/cpufreq.c            |    1 -
 arch/arm/plat-mxc/include/mach/clock.h |   70 ---------
 9 files changed, 54 insertions(+), 334 deletions(-)
 create mode 100644 arch/arm/mach-imx/clk.c
 delete mode 100644 arch/arm/plat-mxc/clock.c
 delete mode 100644 arch/arm/plat-mxc/include/mach/clock.h

[PATCH 1/2] ARM: i.MX clk pllv1: move mxc_decode_pll code to its user

[Sascha Hauer]

The only code using mxc_decode_pll is clk-pllv1.c, so move the code
there.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 arch/arm/mach-imx/clk-pllv1.c          |   47 +++++++++++++++++++++++++++++++-
 arch/arm/plat-mxc/clock.c              |   45 ------------------------------
 arch/arm/plat-mxc/include/mach/clock.h |    2 --
 3 files changed, 46 insertions(+), 48 deletions(-)

diff --git a/arch/arm/mach-imx/clk-pllv1.c b/arch/arm/mach-imx/clk-pllv1.c
index 2d856f9..4a03c93 100644
--- a/arch/arm/mach-imx/clk-pllv1.c
+++ b/arch/arm/mach-imx/clk-pllv1.c
@@ -29,8 +29,53 @@ static unsigned long clk_pllv1_recalc_rate(struct clk_hw *hw,
 		unsigned long parent_rate)
 {
 	struct clk_pllv1 *pll = to_clk_pllv1(hw);
+	long long ll;
+	int mfn_abs;
+	unsigned int mfi, mfn, mfd, pd;
+	u32 reg;
+	unsigned long rate;
 
-	return mxc_decode_pll(readl(pll->base), parent_rate);
+	reg = readl(pll->base);
+
+	/*
+	 * Get the resulting clock rate from a PLL register value and the input
+	 * frequency. PLLs with this register layout can be found on i.MX1,
+	 * i.MX21, i.MX27 and i,MX31
+	 *
+	 *                  mfi + mfn / (mfd + 1)
+	 *  f = 2 * f_ref * --------------------
+	 *                        pd + 1
+	 */
+
+	mfi = (reg >> 10) & 0xf;
+	mfn = reg & 0x3ff;
+	mfd = (reg >> 16) & 0x3ff;
+	pd =  (reg >> 26) & 0xf;
+
+	mfi = mfi <= 5 ? 5 : mfi;
+
+	mfn_abs = mfn;
+
+	/*
+	 * On all i.MXs except i.MX1 and i.MX21 mfn is a 10bit
+	 * 2's complements number
+	 */
+	if (!cpu_is_mx1() && !cpu_is_mx21() && mfn >= 0x200)
+		mfn_abs = 0x400 - mfn;
+
+	rate = parent_rate * 2;
+	rate /= pd + 1;
+
+	ll = (unsigned long long)rate * mfn_abs;
+
+	do_div(ll, mfd + 1);
+
+	if (!cpu_is_mx1() && !cpu_is_mx21() && mfn >= 0x200)
+		ll = -ll;
+
+	ll = (rate * mfi) + ll;
+
+	return ll;
 }
 
 struct clk_ops clk_pllv1_ops = {
diff --git a/arch/arm/plat-mxc/clock.c b/arch/arm/plat-mxc/clock.c
index 5079787..0ed0954 100644
--- a/arch/arm/plat-mxc/clock.c
+++ b/arch/arm/plat-mxc/clock.c
@@ -210,48 +210,3 @@ EXPORT_SYMBOL(clk_get_parent);
 DEFINE_SPINLOCK(imx_ccm_lock);
 
 #endif /* CONFIG_COMMON_CLK */
-
-/*
- * Get the resulting clock rate from a PLL register value and the input
- * frequency. PLLs with this register layout can at least be found on
- * MX1, MX21, MX27 and MX31
- *
- *                  mfi + mfn / (mfd + 1)
- *  f = 2 * f_ref * --------------------
- *                        pd + 1
- */
-unsigned long mxc_decode_pll(unsigned int reg_val, u32 freq)
-{
-	long long ll;
-	int mfn_abs;
-	unsigned int mfi, mfn, mfd, pd;
-
-	mfi = (reg_val >> 10) & 0xf;
-	mfn = reg_val & 0x3ff;
-	mfd = (reg_val >> 16) & 0x3ff;
-	pd =  (reg_val >> 26) & 0xf;
-
-	mfi = mfi <= 5 ? 5 : mfi;
-
-	mfn_abs = mfn;
-
-	/* On all i.MXs except i.MX1 and i.MX21 mfn is a 10bit
-	 * 2's complements number
-	 */
-	if (!cpu_is_mx1() && !cpu_is_mx21() && mfn >= 0x200)
-		mfn_abs = 0x400 - mfn;
-
-	freq *= 2;
-	freq /= pd + 1;
-
-	ll = (unsigned long long)freq * mfn_abs;
-
-	do_div(ll, mfd + 1);
-
-	if (!cpu_is_mx1() && !cpu_is_mx21() && mfn >= 0x200)
-		ll = -ll;
-
-	ll = (freq * mfi) + ll;
-
-	return ll;
-}
diff --git a/arch/arm/plat-mxc/include/mach/clock.h b/arch/arm/plat-mxc/include/mach/clock.h
index bd940c7..0c4ad77 100644
--- a/arch/arm/plat-mxc/include/mach/clock.h
+++ b/arch/arm/plat-mxc/include/mach/clock.h
@@ -64,7 +64,5 @@ void clk_unregister(struct clk *clk);
 
 extern spinlock_t imx_ccm_lock;
 
-unsigned long mxc_decode_pll(unsigned int pll, u32 f_ref);
-
 #endif /* __ASSEMBLY__ */
 #endif /* __ASM_ARCH_MXC_CLOCK_H__ */
-- 
1.7.10.4

[PATCH 2/2] ARM: i.MX remove last leftovers from legacy clock support

[Sascha Hauer]

This also removes mach/clock.h along the way

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 arch/arm/mach-imx/Makefile             |    2 +-
 arch/arm/mach-imx/clk-pllv1.c          |    2 +-
 arch/arm/mach-imx/clk.c                |    3 +
 arch/arm/mach-imx/clk.h                |    3 +-
 arch/arm/mach-imx/mach-kzm_arm11_01.c  |    1 -
 arch/arm/plat-mxc/Makefile             |    2 +-
 arch/arm/plat-mxc/clock.c              |  212 --------------------------------
 arch/arm/plat-mxc/cpufreq.c            |    1 -
 arch/arm/plat-mxc/include/mach/clock.h |   68 ----------
 9 files changed, 8 insertions(+), 286 deletions(-)
 create mode 100644 arch/arm/mach-imx/clk.c
 delete mode 100644 arch/arm/plat-mxc/clock.c
 delete mode 100644 arch/arm/plat-mxc/include/mach/clock.h

diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile
index 07f7c22..e407d92 100644
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -12,7 +12,7 @@ obj-$(CONFIG_SOC_IMX35) += mm-imx3.o cpu-imx35.o clk-imx35.o ehci-imx35.o pm-imx
 obj-$(CONFIG_SOC_IMX5) += cpu-imx5.o mm-imx5.o clk-imx51-imx53.o ehci-imx5.o pm-imx5.o cpu_op-mx51.o
 
 obj-$(CONFIG_COMMON_CLK) += clk-pllv1.o clk-pllv2.o clk-pllv3.o clk-gate2.o \
-			    clk-pfd.o clk-busy.o
+			    clk-pfd.o clk-busy.o clk.o
 
 # Support for CMOS sensor interface
 obj-$(CONFIG_MX1_VIDEO) += mx1-camera-fiq.o mx1-camera-fiq-ksym.o
diff --git a/arch/arm/mach-imx/clk-pllv1.c b/arch/arm/mach-imx/clk-pllv1.c
index 4a03c93..02be731 100644
--- a/arch/arm/mach-imx/clk-pllv1.c
+++ b/arch/arm/mach-imx/clk-pllv1.c
@@ -6,7 +6,7 @@
 #include <linux/err.h>
 #include <mach/common.h>
 #include <mach/hardware.h>
-#include <mach/clock.h>
+
 #include "clk.h"
 
 /**
diff --git a/arch/arm/mach-imx/clk.c b/arch/arm/mach-imx/clk.c
new file mode 100644
index 0000000..f5e8be8
--- /dev/null
+++ b/arch/arm/mach-imx/clk.c
@@ -0,0 +1,3 @@
+#include <linux/spinlock.h>
+
+DEFINE_SPINLOCK(imx_ccm_lock);
diff --git a/arch/arm/mach-imx/clk.h b/arch/arm/mach-imx/clk.h
index 1bf64fe..5f2d8ac 100644
--- a/arch/arm/mach-imx/clk.h
+++ b/arch/arm/mach-imx/clk.h
@@ -3,7 +3,8 @@
 
 #include <linux/spinlock.h>
 #include <linux/clk-provider.h>
-#include <mach/clock.h>
+
+extern spinlock_t imx_ccm_lock;
 
 struct clk *imx_clk_pllv1(const char *name, const char *parent,
 		void __iomem *base);
diff --git a/arch/arm/mach-imx/mach-kzm_arm11_01.c b/arch/arm/mach-imx/mach-kzm_arm11_01.c
index 5d08533..8dc9d3e 100644
--- a/arch/arm/mach-imx/mach-kzm_arm11_01.c
+++ b/arch/arm/mach-imx/mach-kzm_arm11_01.c
@@ -36,7 +36,6 @@
 #include <asm/mach/map.h>
 #include <asm/mach/time.h>
 
-#include <mach/clock.h>
 #include <mach/common.h>
 #include <mach/hardware.h>
 #include <mach/iomux-mx3.h>
diff --git a/arch/arm/plat-mxc/Makefile b/arch/arm/plat-mxc/Makefile
index 6ac7200..149237e 100644
--- a/arch/arm/plat-mxc/Makefile
+++ b/arch/arm/plat-mxc/Makefile
@@ -3,7 +3,7 @@
 #
 
 # Common support
-obj-y := clock.o time.o devices.o cpu.o system.o irq-common.o
+obj-y := time.o devices.o cpu.o system.o irq-common.o
 
 obj-$(CONFIG_MXC_TZIC) += tzic.o
 obj-$(CONFIG_MXC_AVIC) += avic.o
diff --git a/arch/arm/plat-mxc/clock.c b/arch/arm/plat-mxc/clock.c
deleted file mode 100644
index 0ed0954..0000000
--- a/arch/arm/plat-mxc/clock.c
+++ /dev/null
@@ -1,212 +0,0 @@
-/*
- * Based on arch/arm/plat-omap/clock.c
- *
- * Copyright (C) 2004 - 2005 Nokia corporation
- * Written by Tuukka Tikkanen <tuukka.tikkanen@elektrobit.com>
- * Modified for omap shared clock framework by Tony Lindgren <tony@atomide.com>
- * Copyright 2007 Freescale Semiconductor, Inc. All Rights Reserved.
- * Copyright 2008 Juergen Beisert, kernel at pengutronix.de
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- * MA  02110-1301, USA.
- */
-
-/* #define DEBUG */
-
-#include <linux/clk.h>
-#include <linux/err.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/io.h>
-#include <linux/kernel.h>
-#include <linux/list.h>
-#include <linux/module.h>
-#include <linux/mutex.h>
-#include <linux/platform_device.h>
-#include <linux/proc_fs.h>
-#include <linux/semaphore.h>
-#include <linux/string.h>
-
-#include <mach/clock.h>
-#include <mach/hardware.h>
-
-#ifndef CONFIG_COMMON_CLK
-static LIST_HEAD(clocks);
-static DEFINE_MUTEX(clocks_mutex);
-
-/*-------------------------------------------------------------------------
- * Standard clock functions defined in include/linux/clk.h
- *-------------------------------------------------------------------------*/
-
-static void __clk_disable(struct clk *clk)
-{
-	if (clk == NULL || IS_ERR(clk))
-		return;
-	WARN_ON(!clk->usecount);
-
-	if (!(--clk->usecount)) {
-		if (clk->disable)
-			clk->disable(clk);
-		__clk_disable(clk->parent);
-		__clk_disable(clk->secondary);
-	}
-}
-
-static int __clk_enable(struct clk *clk)
-{
-	if (clk == NULL || IS_ERR(clk))
-		return -EINVAL;
-
-	if (clk->usecount++ == 0) {
-		__clk_enable(clk->parent);
-		__clk_enable(clk->secondary);
-
-		if (clk->enable)
-			clk->enable(clk);
-	}
-	return 0;
-}
-
-/* This function increments the reference count on the clock and enables the
- * clock if not already enabled. The parent clock tree is recursively enabled
- */
-int clk_enable(struct clk *clk)
-{
-	int ret = 0;
-
-	if (clk == NULL || IS_ERR(clk))
-		return -EINVAL;
-
-	mutex_lock(&clocks_mutex);
-	ret = __clk_enable(clk);
-	mutex_unlock(&clocks_mutex);
-
-	return ret;
-}
-EXPORT_SYMBOL(clk_enable);
-
-/* This function decrements the reference count on the clock and disables
- * the clock when reference count is 0. The parent clock tree is
- * recursively disabled
- */
-void clk_disable(struct clk *clk)
-{
-	if (clk == NULL || IS_ERR(clk))
-		return;
-
-	mutex_lock(&clocks_mutex);
-	__clk_disable(clk);
-	mutex_unlock(&clocks_mutex);
-}
-EXPORT_SYMBOL(clk_disable);
-
-/* Retrieve the *current* clock rate. If the clock itself
- * does not provide a special calculation routine, ask
- * its parent and so on, until one is able to return
- * a valid clock rate
- */
-unsigned long clk_get_rate(struct clk *clk)
-{
-	if (clk == NULL || IS_ERR(clk))
-		return 0UL;
-
-	if (clk->get_rate)
-		return clk->get_rate(clk);
-
-	return clk_get_rate(clk->parent);
-}
-EXPORT_SYMBOL(clk_get_rate);
-
-/* Round the requested clock rate to the nearest supported
- * rate that is less than or equal to the requested rate.
- * This is dependent on the clock's current parent.
- */
-long clk_round_rate(struct clk *clk, unsigned long rate)
-{
-	if (clk == NULL || IS_ERR(clk) || !clk->round_rate)
-		return 0;
-
-	return clk->round_rate(clk, rate);
-}
-EXPORT_SYMBOL(clk_round_rate);
-
-/* Set the clock to the requested clock rate. The rate must
- * match a supported rate exactly based on what clk_round_rate returns
- */
-int clk_set_rate(struct clk *clk, unsigned long rate)
-{
-	int ret = -EINVAL;
-
-	if (clk == NULL || IS_ERR(clk) || clk->set_rate == NULL || rate == 0)
-		return ret;
-
-	mutex_lock(&clocks_mutex);
-	ret = clk->set_rate(clk, rate);
-	mutex_unlock(&clocks_mutex);
-
-	return ret;
-}
-EXPORT_SYMBOL(clk_set_rate);
-
-/* Set the clock's parent to another clock source */
-int clk_set_parent(struct clk *clk, struct clk *parent)
-{
-	int ret = -EINVAL;
-	struct clk *old;
-
-	if (clk == NULL || IS_ERR(clk) || parent == NULL ||
-	    IS_ERR(parent) || clk->set_parent == NULL)
-		return ret;
-
-	if (clk->usecount)
-		clk_enable(parent);
-
-	mutex_lock(&clocks_mutex);
-	ret = clk->set_parent(clk, parent);
-	if (ret == 0) {
-		old = clk->parent;
-		clk->parent = parent;
-	} else {
-		old = parent;
-	}
-	mutex_unlock(&clocks_mutex);
-
-	if (clk->usecount)
-		clk_disable(old);
-
-	return ret;
-}
-EXPORT_SYMBOL(clk_set_parent);
-
-/* Retrieve the clock's parent clock source */
-struct clk *clk_get_parent(struct clk *clk)
-{
-	struct clk *ret = NULL;
-
-	if (clk == NULL || IS_ERR(clk))
-		return ret;
-
-	return clk->parent;
-}
-EXPORT_SYMBOL(clk_get_parent);
-
-#else
-
-/*
- * Lock to protect the clock module (ccm) registers. Used
- * on all i.MXs
- */
-DEFINE_SPINLOCK(imx_ccm_lock);
-
-#endif /* CONFIG_COMMON_CLK */
diff --git a/arch/arm/plat-mxc/cpufreq.c b/arch/arm/plat-mxc/cpufreq.c
index 73db34b..b5b6f80 100644
--- a/arch/arm/plat-mxc/cpufreq.c
+++ b/arch/arm/plat-mxc/cpufreq.c
@@ -23,7 +23,6 @@
 #include <linux/err.h>
 #include <linux/slab.h>
 #include <mach/hardware.h>
-#include <mach/clock.h>
 
 #define CLK32_FREQ	32768
 #define NANOSECOND	(1000 * 1000 * 1000)
diff --git a/arch/arm/plat-mxc/include/mach/clock.h b/arch/arm/plat-mxc/include/mach/clock.h
deleted file mode 100644
index 0c4ad77..0000000
--- a/arch/arm/plat-mxc/include/mach/clock.h
+++ /dev/null
@@ -1,68 +0,0 @@
-/*
- * Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
- * Copyright 2008 Juergen Beisert, kernel at pengutronix.de
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- * MA  02110-1301, USA.
- */
-
-#ifndef __ASM_ARCH_MXC_CLOCK_H__
-#define __ASM_ARCH_MXC_CLOCK_H__
-
-#ifndef __ASSEMBLY__
-#include <linux/list.h>
-
-#ifndef CONFIG_COMMON_CLK
-struct module;
-
-struct clk {
-	int id;
-	/* Source clock this clk depends on */
-	struct clk *parent;
-	/* Secondary clock to enable/disable with this clock */
-	struct clk *secondary;
-	/* Reference count of clock enable/disable */
-	__s8 usecount;
-	/* Register bit position for clock's enable/disable control. */
-	u8 enable_shift;
-	/* Register address for clock's enable/disable control. */
-	void __iomem *enable_reg;
-	u32 flags;
-	/* get the current clock rate (always a fresh value) */
-	unsigned long (*get_rate) (struct clk *);
-	/* Function ptr to set the clock to a new rate. The rate must match a
-	   supported rate returned from round_rate. Leave blank if clock is not
-	   programmable */
-	int (*set_rate) (struct clk *, unsigned long);
-	/* Function ptr to round the requested clock rate to the nearest
-	   supported rate that is less than or equal to the requested rate. */
-	unsigned long (*round_rate) (struct clk *, unsigned long);
-	/* Function ptr to enable the clock. Leave blank if clock can not
-	   be gated. */
-	int (*enable) (struct clk *);
-	/* Function ptr to disable the clock. Leave blank if clock can not
-	   be gated. */
-	void (*disable) (struct clk *);
-	/* Function ptr to set the parent clock of the clock. */
-	int (*set_parent) (struct clk *, struct clk *);
-};
-
-int clk_register(struct clk *clk);
-void clk_unregister(struct clk *clk);
-#endif /* CONFIG_COMMON_CLK */
-
-extern spinlock_t imx_ccm_lock;
-
-#endif /* __ASSEMBLY__ */
-#endif /* __ASM_ARCH_MXC_CLOCK_H__ */
-- 
1.7.10.4

[PATCH] i.MX: remove legacy clock support

[Shawn Guo]

On Tue, Sep 11, 2012 at 08:53:14AM +0200, Sascha Hauer wrote:
> This removes the last leftovers from the i.MX legacy clock support.
> As a bonus we get rid of mach/clock.h
> 
> ----------------------------------------------------------------
> Sascha Hauer (2):
>       ARM: i.MX clk pllv1: move mxc_decode_pll code to its user
>       ARM: i.MX remove last leftovers from legacy clock support
> 
Both:

Acked-by: Shawn Guo <shawn.guo@linaro.org>

>  arch/arm/mach-imx/Makefile             |    2 +-
>  arch/arm/mach-imx/clk-pllv1.c          |   49 +++++-
>  arch/arm/mach-imx/clk.c                |    3 +
>  arch/arm/mach-imx/clk.h                |    3 +-
>  arch/arm/mach-imx/mach-kzm_arm11_01.c  |    1 -
>  arch/arm/plat-mxc/Makefile             |    2 +-
>  arch/arm/plat-mxc/clock.c              |  257 --------------------------------
>  arch/arm/plat-mxc/cpufreq.c            |    1 -
>  arch/arm/plat-mxc/include/mach/clock.h |   70 ---------
>  9 files changed, 54 insertions(+), 334 deletions(-)
>  create mode 100644 arch/arm/mach-imx/clk.c
>  delete mode 100644 arch/arm/plat-mxc/clock.c
>  delete mode 100644 arch/arm/plat-mxc/include/mach/clock.h
> 

[PATCH] i.MX: remove legacy clock support

[Mike Turquette]

Quoting Sascha Hauer (2012-09-10 23:53:14)
> This removes the last leftovers from the i.MX legacy clock support.
> As a bonus we get rid of mach/clock.h
> 
> ----------------------------------------------------------------
> Sascha Hauer (2):
>       ARM: i.MX clk pllv1: move mxc_decode_pll code to its user
>       ARM: i.MX remove last leftovers from legacy clock support
> 

Nice!  For the series:
Reviewed-by: Mike Turquette <mturquette@linaro.org>

Regards,
Mike

>  arch/arm/mach-imx/Makefile             |    2 +-
>  arch/arm/mach-imx/clk-pllv1.c          |   49 +++++-
>  arch/arm/mach-imx/clk.c                |    3 +
>  arch/arm/mach-imx/clk.h                |    3 +-
>  arch/arm/mach-imx/mach-kzm_arm11_01.c  |    1 -
>  arch/arm/plat-mxc/Makefile             |    2 +-
>  arch/arm/plat-mxc/clock.c              |  257 --------------------------------
>  arch/arm/plat-mxc/cpufreq.c            |    1 -
>  arch/arm/plat-mxc/include/mach/clock.h |   70 ---------
>  9 files changed, 54 insertions(+), 334 deletions(-)
>  create mode 100644 arch/arm/mach-imx/clk.c
>  delete mode 100644 arch/arm/plat-mxc/clock.c
>  delete mode 100644 arch/arm/plat-mxc/include/mach/clock.h
> 
> 
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel at lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel