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authorLinus Torvalds <torvalds@woody.osdl.org>2006-12-06 11:10:55 -0500
committerLinus Torvalds <torvalds@woody.osdl.org>2006-12-06 11:10:55 -0500
commitdd6a7c19e4630f635467246a81b8e0cc818c05e6 (patch)
tree8fc93cdef4070183cbd3fa06019c84728380b389 /arch/sh/kernel/cpu/clock.c
parentdd8856bda5f1308beb113281b248683992998a9e (diff)
parentea0f8feaa041f3ccec3d6b8ee51325b177daef06 (diff)
Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6: (43 commits) sh: sh775x/titan fixes for irq header changes. sh: update r7780rp defconfig. sh: compile fixes for header cleanup. sh: Fixup pte_mkhuge() build failure. sh: set KBUILD_IMAGE to something sensible. sh: show held locks in stack trace with lockdep. sh: platform_pata support for R7780RP sh: stacktrace/lockdep/irqflags tracing support. sh: Fixup movli.l/movco.l atomic ops for gcc4. sh: dyntick infrastructure. sh: Clock framework tidying. sh: Turn off IRQs around get_timer_offset() calls. sh: Get the PGD right in oops case with 64-bit PTEs. sh: Fix store queue bitmap end. sh: More flexible + SH7780 earlyprintk SCIF support. sh: Fixup various PAGE_SIZE == 4096 assumptions. sh: Fixup 4K irq stacks. sh: dma-api channel capability extensions. sh: Drop name overload in dma-sh. sh: Make dma-isa depend on ISA_DMA_API. ...
Diffstat (limited to 'arch/sh/kernel/cpu/clock.c')
-rw-r--r--arch/sh/kernel/cpu/clock.c27
1 files changed, 25 insertions, 2 deletions
diff --git a/arch/sh/kernel/cpu/clock.c b/arch/sh/kernel/cpu/clock.c
index 51ec64cdf348..abb586b12565 100644
--- a/arch/sh/kernel/cpu/clock.c
+++ b/arch/sh/kernel/cpu/clock.c
@@ -5,9 +5,11 @@
5 * 5 *
6 * This clock framework is derived from the OMAP version by: 6 * This clock framework is derived from the OMAP version by:
7 * 7 *
8 * Copyright (C) 2004 Nokia Corporation 8 * Copyright (C) 2004 - 2005 Nokia Corporation
9 * Written by Tuukka Tikkanen <tuukka.tikkanen@elektrobit.com> 9 * Written by Tuukka Tikkanen <tuukka.tikkanen@elektrobit.com>
10 * 10 *
11 * Modified for omap shared clock framework by Tony Lindgren <tony@atomide.com>
12 *
11 * This file is subject to the terms and conditions of the GNU General Public 13 * This file is subject to the terms and conditions of the GNU General Public
12 * License. See the file "COPYING" in the main directory of this archive 14 * License. See the file "COPYING" in the main directory of this archive
13 * for more details. 15 * for more details.
@@ -20,6 +22,7 @@
20#include <linux/kref.h> 22#include <linux/kref.h>
21#include <linux/seq_file.h> 23#include <linux/seq_file.h>
22#include <linux/err.h> 24#include <linux/err.h>
25#include <linux/platform_device.h>
23#include <asm/clock.h> 26#include <asm/clock.h>
24#include <asm/timer.h> 27#include <asm/timer.h>
25 28
@@ -195,17 +198,37 @@ void clk_recalc_rate(struct clk *clk)
195 propagate_rate(clk); 198 propagate_rate(clk);
196} 199}
197 200
198struct clk *clk_get(const char *id) 201/*
202 * Returns a clock. Note that we first try to use device id on the bus
203 * and clock name. If this fails, we try to use clock name only.
204 */
205struct clk *clk_get(struct device *dev, const char *id)
199{ 206{
200 struct clk *p, *clk = ERR_PTR(-ENOENT); 207 struct clk *p, *clk = ERR_PTR(-ENOENT);
208 int idno;
209
210 if (dev == NULL || dev->bus != &platform_bus_type)
211 idno = -1;
212 else
213 idno = to_platform_device(dev)->id;
201 214
202 mutex_lock(&clock_list_sem); 215 mutex_lock(&clock_list_sem);
203 list_for_each_entry(p, &clock_list, node) { 216 list_for_each_entry(p, &clock_list, node) {
217 if (p->id == idno &&
218 strcmp(id, p->name) == 0 && try_module_get(p->owner)) {
219 clk = p;
220 goto found;
221 }
222 }
223
224 list_for_each_entry(p, &clock_list, node) {
204 if (strcmp(id, p->name) == 0 && try_module_get(p->owner)) { 225 if (strcmp(id, p->name) == 0 && try_module_get(p->owner)) {
205 clk = p; 226 clk = p;
206 break; 227 break;
207 } 228 }
208 } 229 }
230
231found:
209 mutex_unlock(&clock_list_sem); 232 mutex_unlock(&clock_list_sem);
210 233
211 return clk; 234 return clk;