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authorLinus Torvalds <torvalds@linux-foundation.org>2013-07-02 14:42:51 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-02 14:42:51 -0700
commit42daabf62bfa3c00974b43f030dadcf704c0db59 (patch)
tree255f279cad48557227d974d67cbbc8390d057404 /arch/arm/mach-msm/clock.c
parent0bf6a210a43f7118d858806200127e421649fc4e (diff)
parent8c3d913888cfb0066d62831969c3a992f7e4aba5 (diff)
downloadlinux-42daabf62bfa3c00974b43f030dadcf704c0db59.tar.bz2
Merge tag 'late-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC late changes from Arnd Bergmann: "These are changes that arrived a little late before the merge window or that have multiple dependencies on previous branches so they did not fit into one of the earlier ones. There are 10 branches merged here, a total of 39 non-merge commits. Contents are a mixed bag for the above reasons: * Two new SoC platforms: ST microelectronics stixxxx and the TI 'Nspire' graphing calculator. These should have been in the 'soc' branch but were a little late * Support for the Exynos 5420 variant in mach-exynos, which is based on the other exynos branches to avoid conflicts. * Various small changes for sh-mobile, ux500 and davinci * Common clk support for MSM" * tag 'late-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (39 commits) ARM: ux500: bail out on alien cpus ARM: davinci: da850: adopt to pinctrl-single change for configuring multiple pins serial: sh-sci: Initialise variables before access in sci_set_termios() ARM: stih41x: Add B2020 board support ARM: stih41x: Add B2000 board support ARM: sti: Add DEBUG_LL console support ARM: sti: Add STiH416 SOC support ARM: sti: Add STiH415 SOC support ARM: msm: Migrate to common clock framework ARM: msm: Make proc_comm clock control into a platform driver ARM: msm: Prepare clk_get() users in mach-msm for clock-pcom driver ARM: msm: Remove clock-7x30.h include file ARM: msm: Remove custom clk_set_{max,min}_rate() API ARM: msm: Remove custom clk_set_flags() API msm: iommu: Use clk_set_rate() instead of clk_set_min_rate() msm: iommu: Convert to clk_prepare/unprepare msm_sdcc: Convert to clk_prepare/unprepare usb: otg: msm: Convert to clk_prepare/unprepare msm_serial: Use devm_clk_get() and properly return errors msm_serial: Convert to clk_prepare/unprepare ...
Diffstat (limited to 'arch/arm/mach-msm/clock.c')
-rw-r--r--arch/arm/mach-msm/clock.c166
1 files changed, 5 insertions, 161 deletions
diff --git a/arch/arm/mach-msm/clock.c b/arch/arm/mach-msm/clock.c
index d9145dfc2a3b..35ea02b52483 100644
--- a/arch/arm/mach-msm/clock.c
+++ b/arch/arm/mach-msm/clock.c
@@ -1,7 +1,7 @@
/* arch/arm/mach-msm/clock.c
*
* Copyright (C) 2007 Google, Inc.
- * Copyright (c) 2007-2010, Code Aurora Forum. All rights reserved.
+ * Copyright (c) 2007-2012, The Linux Foundation. All rights reserved.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
@@ -14,171 +14,15 @@
*
*/
-#include <linux/kernel.h>
-#include <linux/list.h>
-#include <linux/err.h>
-#include <linux/spinlock.h>
-#include <linux/pm_qos.h>
-#include <linux/mutex.h>
-#include <linux/clk.h>
-#include <linux/string.h>
+#include <linux/clk-provider.h>
#include <linux/module.h>
-#include <linux/clkdev.h>
#include "clock.h"
-static DEFINE_MUTEX(clocks_mutex);
-static DEFINE_SPINLOCK(clocks_lock);
-static LIST_HEAD(clocks);
-
-/*
- * Standard clock functions defined in include/linux/clk.h
- */
-int clk_enable(struct clk *clk)
-{
- unsigned long flags;
- spin_lock_irqsave(&clocks_lock, flags);
- clk->count++;
- if (clk->count == 1)
- clk->ops->enable(clk->id);
- spin_unlock_irqrestore(&clocks_lock, flags);
- return 0;
-}
-EXPORT_SYMBOL(clk_enable);
-
-void clk_disable(struct clk *clk)
-{
- unsigned long flags;
- spin_lock_irqsave(&clocks_lock, flags);
- BUG_ON(clk->count == 0);
- clk->count--;
- if (clk->count == 0)
- clk->ops->disable(clk->id);
- spin_unlock_irqrestore(&clocks_lock, flags);
-}
-EXPORT_SYMBOL(clk_disable);
-
int clk_reset(struct clk *clk, enum clk_reset_action action)
{
- return clk->ops->reset(clk->remote_id, action);
+ struct clk_hw *hw = __clk_get_hw(clk);
+ struct msm_clk *m = to_msm_clk(hw);
+ return m->reset(hw, action);
}
EXPORT_SYMBOL(clk_reset);
-
-unsigned long clk_get_rate(struct clk *clk)
-{
- return clk->ops->get_rate(clk->id);
-}
-EXPORT_SYMBOL(clk_get_rate);
-
-int clk_set_rate(struct clk *clk, unsigned long rate)
-{
- int ret;
- if (clk->flags & CLKFLAG_MAX) {
- ret = clk->ops->set_max_rate(clk->id, rate);
- if (ret)
- return ret;
- }
- if (clk->flags & CLKFLAG_MIN) {
- ret = clk->ops->set_min_rate(clk->id, rate);
- if (ret)
- return ret;
- }
-
- if (clk->flags & CLKFLAG_MAX || clk->flags & CLKFLAG_MIN)
- return ret;
-
- return clk->ops->set_rate(clk->id, rate);
-}
-EXPORT_SYMBOL(clk_set_rate);
-
-long clk_round_rate(struct clk *clk, unsigned long rate)
-{
- return clk->ops->round_rate(clk->id, rate);
-}
-EXPORT_SYMBOL(clk_round_rate);
-
-int clk_set_min_rate(struct clk *clk, unsigned long rate)
-{
- return clk->ops->set_min_rate(clk->id, rate);
-}
-EXPORT_SYMBOL(clk_set_min_rate);
-
-int clk_set_max_rate(struct clk *clk, unsigned long rate)
-{
- return clk->ops->set_max_rate(clk->id, rate);
-}
-EXPORT_SYMBOL(clk_set_max_rate);
-
-int clk_set_parent(struct clk *clk, struct clk *parent)
-{
- return -ENOSYS;
-}
-EXPORT_SYMBOL(clk_set_parent);
-
-struct clk *clk_get_parent(struct clk *clk)
-{
- return ERR_PTR(-ENOSYS);
-}
-EXPORT_SYMBOL(clk_get_parent);
-
-int clk_set_flags(struct clk *clk, unsigned long flags)
-{
- if (clk == NULL || IS_ERR(clk))
- return -EINVAL;
- return clk->ops->set_flags(clk->id, flags);
-}
-EXPORT_SYMBOL(clk_set_flags);
-
-/* EBI1 is the only shared clock that several clients want to vote on as of
- * this commit. If this changes in the future, then it might be better to
- * make clk_min_rate handle the voting or make ebi1_clk_set_min_rate more
- * generic to support different clocks.
- */
-static struct clk *ebi1_clk;
-
-void __init msm_clock_init(struct clk_lookup *clock_tbl, unsigned num_clocks)
-{
- unsigned n;
-
- mutex_lock(&clocks_mutex);
- for (n = 0; n < num_clocks; n++) {
- clkdev_add(&clock_tbl[n]);
- list_add_tail(&clock_tbl[n].clk->list, &clocks);
- }
- mutex_unlock(&clocks_mutex);
-
- ebi1_clk = clk_get(NULL, "ebi1_clk");
- BUG_ON(ebi1_clk == NULL);
-
-}
-
-/* The bootloader and/or AMSS may have left various clocks enabled.
- * Disable any clocks that belong to us (CLKFLAG_AUTO_OFF) but have
- * not been explicitly enabled by a clk_enable() call.
- */
-static int __init clock_late_init(void)
-{
- unsigned long flags;
- struct clk *clk;
- unsigned count = 0;
-
- clock_debug_init();
- mutex_lock(&clocks_mutex);
- list_for_each_entry(clk, &clocks, list) {
- clock_debug_add(clk);
- if (clk->flags & CLKFLAG_AUTO_OFF) {
- spin_lock_irqsave(&clocks_lock, flags);
- if (!clk->count) {
- count++;
- clk->ops->auto_off(clk->id);
- }
- spin_unlock_irqrestore(&clocks_lock, flags);
- }
- }
- mutex_unlock(&clocks_mutex);
- pr_info("clock_late_init() disabled %d unused clocks\n", count);
- return 0;
-}
-
-late_initcall(clock_late_init);
-