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authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-02 05:32:45 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-02 05:32:45 +0400
commitac9e7ab32fe42489808c8d9fc89ad413d2805766 (patch)
treed5628b62e23fae6a0acd000a7bb16030c89f2073 /arch/arm/mach-bcmring/clock.c
parent2a2bf85f05e42b12ea6bfe821e2d19221cf93555 (diff)
parentb98138e00d96abc85b100c9b6886f105d9868ab5 (diff)
downloadlinux-ac9e7ab32fe42489808c8d9fc89ad413d2805766.tar.xz
Merge tag 'cleanup2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM soc cleanups, part 2 from Olof Johansson: "A shorter cleanup branch submitted separately due to dependencies with some of the previous topics. Major thing here is that the Broadcom bcmring platform is removed. It's an SoC that's used on some stationary VoIP platforms, and is in desperate need of some cleanup. Broadcom came back and suggested that we just deprecate the platform for now, since they aren't going to spend the resources needed on cleaning it up, and there are no users of the platform directly from mainline." Fix some conflicts due to BCM2835 getting added next to the removed BCMRING, and removal of tegra files that had been converted to devicetree. * tag 'cleanup2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: Orion5x: ts78xx: Add IOMEM for virtual addresses. ARM: ux500: use __iomem pointers for MMIO ARM: Remove mach-bcmring ARM: clps711x: Remove board support for CEIVA ARM: clps711x: Fix register definitions ARM: clps711x: Fix lowlevel debug-macro ARM: clps711x: Added simple clock framework pinctrl: tegra: move pinconf-tegra.h content into drivers/pinctrl ARM: tegra: delete unused headers ARM: tegra: remove useless includes of <mach/*.h> ARM: tegra: remove dead code
Diffstat (limited to 'arch/arm/mach-bcmring/clock.c')
-rw-r--r--arch/arm/mach-bcmring/clock.c223
1 files changed, 0 insertions, 223 deletions
diff --git a/arch/arm/mach-bcmring/clock.c b/arch/arm/mach-bcmring/clock.c
deleted file mode 100644
index ad237a42d265..000000000000
--- a/arch/arm/mach-bcmring/clock.c
+++ /dev/null
@@ -1,223 +0,0 @@
-/*****************************************************************************
-* Copyright 2001 - 2009 Broadcom Corporation. All rights reserved.
-*
-* Unless you and Broadcom execute a separate written software license
-* agreement governing use of this software, this software is licensed to you
-* under the terms of the GNU General Public License version 2, available at
-* http://www.broadcom.com/licenses/GPLv2.php (the "GPL").
-*
-* Notwithstanding the above, under no circumstances may you combine this
-* software in any way with any other Broadcom software provided under a
-* license other than the GPL, without Broadcom's express prior written
-* consent.
-*****************************************************************************/
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/device.h>
-#include <linux/list.h>
-#include <linux/errno.h>
-#include <linux/err.h>
-#include <linux/string.h>
-#include <linux/clk.h>
-#include <linux/spinlock.h>
-#include <linux/clkdev.h>
-#include <mach/csp/hw_cfg.h>
-#include <mach/csp/chipcHw_def.h>
-#include <mach/csp/chipcHw_reg.h>
-#include <mach/csp/chipcHw_inline.h>
-
-#include "clock.h"
-
-#define clk_is_primary(x) ((x)->type & CLK_TYPE_PRIMARY)
-#define clk_is_pll1(x) ((x)->type & CLK_TYPE_PLL1)
-#define clk_is_pll2(x) ((x)->type & CLK_TYPE_PLL2)
-#define clk_is_programmable(x) ((x)->type & CLK_TYPE_PROGRAMMABLE)
-#define clk_is_bypassable(x) ((x)->type & CLK_TYPE_BYPASSABLE)
-
-#define clk_is_using_xtal(x) ((x)->mode & CLK_MODE_XTAL)
-
-static DEFINE_SPINLOCK(clk_lock);
-
-static void __clk_enable(struct clk *clk)
-{
- if (!clk)
- return;
-
- /* enable parent clock first */
- if (clk->parent)
- __clk_enable(clk->parent);
-
- if (clk->use_cnt++ == 0) {
- if (clk_is_pll1(clk)) { /* PLL1 */
- chipcHw_pll1Enable(clk->rate_hz, 0);
- } else if (clk_is_pll2(clk)) { /* PLL2 */
- chipcHw_pll2Enable(clk->rate_hz);
- } else if (clk_is_using_xtal(clk)) { /* source is crystal */
- if (!clk_is_primary(clk))
- chipcHw_bypassClockEnable(clk->csp_id);
- } else { /* source is PLL */
- chipcHw_setClockEnable(clk->csp_id);
- }
- }
-}
-
-int clk_enable(struct clk *clk)
-{
- unsigned long flags;
-
- if (!clk)
- return -EINVAL;
-
- spin_lock_irqsave(&clk_lock, flags);
- __clk_enable(clk);
- spin_unlock_irqrestore(&clk_lock, flags);
-
- return 0;
-}
-EXPORT_SYMBOL(clk_enable);
-
-static void __clk_disable(struct clk *clk)
-{
- if (!clk)
- return;
-
- BUG_ON(clk->use_cnt == 0);
-
- if (--clk->use_cnt == 0) {
- if (clk_is_pll1(clk)) { /* PLL1 */
- chipcHw_pll1Disable();
- } else if (clk_is_pll2(clk)) { /* PLL2 */
- chipcHw_pll2Disable();
- } else if (clk_is_using_xtal(clk)) { /* source is crystal */
- if (!clk_is_primary(clk))
- chipcHw_bypassClockDisable(clk->csp_id);
- } else { /* source is PLL */
- chipcHw_setClockDisable(clk->csp_id);
- }
- }
-
- if (clk->parent)
- __clk_disable(clk->parent);
-}
-
-void clk_disable(struct clk *clk)
-{
- unsigned long flags;
-
- if (!clk)
- return;
-
- spin_lock_irqsave(&clk_lock, flags);
- __clk_disable(clk);
- spin_unlock_irqrestore(&clk_lock, flags);
-}
-EXPORT_SYMBOL(clk_disable);
-
-unsigned long clk_get_rate(struct clk *clk)
-{
- if (!clk)
- return 0;
-
- return clk->rate_hz;
-}
-EXPORT_SYMBOL(clk_get_rate);
-
-long clk_round_rate(struct clk *clk, unsigned long rate)
-{
- unsigned long flags;
- unsigned long actual;
- unsigned long rate_hz;
-
- if (!clk)
- return -EINVAL;
-
- if (!clk_is_programmable(clk))
- return -EINVAL;
-
- if (clk->use_cnt)
- return -EBUSY;
-
- spin_lock_irqsave(&clk_lock, flags);
- actual = clk->parent->rate_hz;
- rate_hz = min(actual, rate);
- spin_unlock_irqrestore(&clk_lock, flags);
-
- return rate_hz;
-}
-EXPORT_SYMBOL(clk_round_rate);
-
-int clk_set_rate(struct clk *clk, unsigned long rate)
-{
- unsigned long flags;
- unsigned long actual;
- unsigned long rate_hz;
-
- if (!clk)
- return -EINVAL;
-
- if (!clk_is_programmable(clk))
- return -EINVAL;
-
- if (clk->use_cnt)
- return -EBUSY;
-
- spin_lock_irqsave(&clk_lock, flags);
- actual = clk->parent->rate_hz;
- rate_hz = min(actual, rate);
- rate_hz = chipcHw_setClockFrequency(clk->csp_id, rate_hz);
- clk->rate_hz = rate_hz;
- spin_unlock_irqrestore(&clk_lock, flags);
-
- return 0;
-}
-EXPORT_SYMBOL(clk_set_rate);
-
-struct clk *clk_get_parent(struct clk *clk)
-{
- if (!clk)
- return NULL;
-
- return clk->parent;
-}
-EXPORT_SYMBOL(clk_get_parent);
-
-int clk_set_parent(struct clk *clk, struct clk *parent)
-{
- unsigned long flags;
- struct clk *old_parent;
-
- if (!clk || !parent)
- return -EINVAL;
-
- if (!clk_is_primary(parent) || !clk_is_bypassable(clk))
- return -EINVAL;
-
- /* if more than one user, parent is not allowed */
- if (clk->use_cnt > 1)
- return -EBUSY;
-
- if (clk->parent == parent)
- return 0;
-
- spin_lock_irqsave(&clk_lock, flags);
- old_parent = clk->parent;
- clk->parent = parent;
- if (clk_is_using_xtal(parent))
- clk->mode |= CLK_MODE_XTAL;
- else
- clk->mode &= (~CLK_MODE_XTAL);
-
- /* if clock is active */
- if (clk->use_cnt != 0) {
- clk->use_cnt--;
- /* enable clock with the new parent */
- __clk_enable(clk);
- /* disable the old parent */
- __clk_disable(old_parent);
- }
- spin_unlock_irqrestore(&clk_lock, flags);
-
- return 0;
-}
-EXPORT_SYMBOL(clk_set_parent);