aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/plat-tcc/clock.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/plat-tcc/clock.c')
-rw-r--r--arch/arm/plat-tcc/clock.c179
1 files changed, 0 insertions, 179 deletions
diff --git a/arch/arm/plat-tcc/clock.c b/arch/arm/plat-tcc/clock.c
deleted file mode 100644
index f3ced10d527..00000000000
--- a/arch/arm/plat-tcc/clock.c
+++ /dev/null
@@ -1,179 +0,0 @@
-/*
- * Clock framework for Telechips SoCs
- * Based on arch/arm/plat-mxc/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@pengutronix.de
- * Copyright 2010 Hans J. Koch, hjk@linutronix.de
- *
- * Licensed under the terms of the GPL v2.
- */
-
-#include <linux/clk.h>
-#include <linux/err.h>
-#include <linux/errno.h>
-#include <linux/module.h>
-#include <linux/mutex.h>
-#include <linux/string.h>
-
-#include <mach/clock.h>
-#include <mach/hardware.h>
-
-static DEFINE_MUTEX(clocks_mutex);
-
-/*-------------------------------------------------------------------------
- * Standard clock functions defined in include/linux/clk.h
- *-------------------------------------------------------------------------*/
-
-static void __clk_disable(struct clk *clk)
-{
- BUG_ON(clk->refcount == 0);
-
- if (!(--clk->refcount) && clk->disable) {
- /* Unconditionally disable the clock in hardware */
- clk->disable(clk);
- /* recursively disable parents */
- if (clk->parent)
- __clk_disable(clk->parent);
- }
-}
-
-static int __clk_enable(struct clk *clk)
-{
- int ret = 0;
-
- if (clk->refcount++ == 0 && clk->enable) {
- if (clk->parent)
- ret = __clk_enable(clk->parent);
- if (ret)
- return ret;
- else
- return 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)
- return -EINVAL;
-
- mutex_lock(&clocks_mutex);
- ret = __clk_enable(clk);
- mutex_unlock(&clocks_mutex);
-
- return ret;
-}
-EXPORT_SYMBOL_GPL(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)
- return;
-
- mutex_lock(&clocks_mutex);
- __clk_disable(clk);
- mutex_unlock(&clocks_mutex);
-}
-EXPORT_SYMBOL_GPL(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)
- return 0UL;
-
- if (clk->get_rate)
- return clk->get_rate(clk);
-
- return clk_get_rate(clk->parent);
-}
-EXPORT_SYMBOL_GPL(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)
- return 0;
- if (!clk->round_rate)
- return 0;
-
- return clk->round_rate(clk, rate);
-}
-EXPORT_SYMBOL_GPL(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)
- return ret;
- if (!clk->set_rate || !rate)
- return ret;
-
- mutex_lock(&clocks_mutex);
- ret = clk->set_rate(clk, rate);
- mutex_unlock(&clocks_mutex);
-
- return ret;
-}
-EXPORT_SYMBOL_GPL(clk_set_rate);
-
-/* Set the clock's parent to another clock source */
-int clk_set_parent(struct clk *clk, struct clk *parent)
-{
- struct clk *old;
- int ret = -EINVAL;
-
- if (!clk)
- return ret;
- if (!clk->set_parent || !parent)
- return ret;
-
- mutex_lock(&clocks_mutex);
- old = clk->parent;
- if (clk->refcount)
- __clk_enable(parent);
- ret = clk->set_parent(clk, parent);
- if (ret)
- old = parent;
- if (clk->refcount)
- __clk_disable(old);
- mutex_unlock(&clocks_mutex);
-
- return ret;
-}
-EXPORT_SYMBOL_GPL(clk_set_parent);
-
-/* Retrieve the clock's parent clock source */
-struct clk *clk_get_parent(struct clk *clk)
-{
- if (!clk)
- return NULL;
-
- return clk->parent;
-}
-EXPORT_SYMBOL_GPL(clk_get_parent);