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authorLinus Torvalds <torvalds@g5.osdl.org>2006-03-22 20:32:09 -0500
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-22 20:32:09 -0500
commit591eb85ecd7e6eb8596c6129ae074e16636b99f4 (patch)
tree535fb7e9bc29113ff62fd70b0dcd8ad197ab51e2 /arch/arm/mach-pxa
parent4658f79bec0b51222e769e328c2923f39f3bda77 (diff)
parent3a2916aa289504d694072a98876d23ca31d6401e (diff)
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm: (45 commits) [ARM] 3389/1: typo and grammar fix [ARM] 3386/1: AT91RM9200 Clock update [ARM] 3384/1: AT91RM9200: Timer [ARM] 3382/1: ixp2000: unify defconfigs [ARM] 3381/1: ixp2000: fix slowport write timing control register fields [ARM] 3380/1: ixp2000: simplify ixdp2x00_master_npu() check [ARM] 3379/1: ixp2000: use generic 8250 debug macros [ARM] 3378/1: ixp2000: fix gpio interrupt handling [ARM] Quieten spurious IRQ detection [ARM] Use kcalloc to allocate counter_config array rather than kmalloc [ARM] Oprofile: dynamically allocate counter_config [ARM] Oprofile: Convert semaphore to mutex [ARM] 3376/2: S3C2410 - update defconfig [ARM] 3375/1: S3C2440 - fix osiris machine build [ARM] 3374/1: ep93xx: gpio interrupt support [ARM] 3361/1: S3C24XX - add USB bus clock source [ARM] 3360/1: S3C2440 - add set rate methods and camera clock [ARM] 3359/1: S3C24XX - add support for clk_set_rate [ARM] Convert kmalloc+memset to kzalloc [ARM] 3373/1: move uengine loader to arch/arm/common ...
Diffstat (limited to 'arch/arm/mach-pxa')
-rw-r--r--arch/arm/mach-pxa/Makefile2
-rw-r--r--arch/arm/mach-pxa/clock.c124
-rw-r--r--arch/arm/mach-pxa/corgi.c1
-rw-r--r--arch/arm/mach-pxa/poodle.c1
-rw-r--r--arch/arm/mach-pxa/spitz.c1
-rw-r--r--arch/arm/mach-pxa/tosa.c1
6 files changed, 125 insertions, 5 deletions
diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile
index 32526a0a6f86..382644401a4d 100644
--- a/arch/arm/mach-pxa/Makefile
+++ b/arch/arm/mach-pxa/Makefile
@@ -3,7 +3,7 @@
3# 3#
4 4
5# Common support (must be linked before board specific support) 5# Common support (must be linked before board specific support)
6obj-y += generic.o irq.o dma.o time.o 6obj-y += clock.o generic.o irq.o dma.o time.o
7obj-$(CONFIG_PXA25x) += pxa25x.o 7obj-$(CONFIG_PXA25x) += pxa25x.o
8obj-$(CONFIG_PXA27x) += pxa27x.o 8obj-$(CONFIG_PXA27x) += pxa27x.o
9 9
diff --git a/arch/arm/mach-pxa/clock.c b/arch/arm/mach-pxa/clock.c
new file mode 100644
index 000000000000..8f7c90a0593b
--- /dev/null
+++ b/arch/arm/mach-pxa/clock.c
@@ -0,0 +1,124 @@
1/*
2 * linux/arch/arm/mach-sa1100/clock.c
3 */
4#include <linux/module.h>
5#include <linux/kernel.h>
6#include <linux/list.h>
7#include <linux/errno.h>
8#include <linux/err.h>
9#include <linux/string.h>
10#include <linux/clk.h>
11#include <linux/spinlock.h>
12
13#include <asm/arch/pxa-regs.h>
14#include <asm/hardware.h>
15#include <asm/semaphore.h>
16
17struct clk {
18 struct list_head node;
19 unsigned long rate;
20 struct module *owner;
21 const char *name;
22 unsigned int enabled;
23 void (*enable)(void);
24 void (*disable)(void);
25};
26
27static LIST_HEAD(clocks);
28static DECLARE_MUTEX(clocks_sem);
29static DEFINE_SPINLOCK(clocks_lock);
30
31struct clk *clk_get(struct device *dev, const char *id)
32{
33 struct clk *p, *clk = ERR_PTR(-ENOENT);
34
35 down(&clocks_sem);
36 list_for_each_entry(p, &clocks, node) {
37 if (strcmp(id, p->name) == 0 && try_module_get(p->owner)) {
38 clk = p;
39 break;
40 }
41 }
42 up(&clocks_sem);
43
44 return clk;
45}
46EXPORT_SYMBOL(clk_get);
47
48void clk_put(struct clk *clk)
49{
50 module_put(clk->owner);
51}
52EXPORT_SYMBOL(clk_put);
53
54int clk_enable(struct clk *clk)
55{
56 unsigned long flags;
57
58 spin_lock_irqsave(&clocks_lock, flags);
59 if (clk->enabled++ == 0)
60 clk->enable();
61 spin_unlock_irqrestore(&clocks_lock, flags);
62 return 0;
63}
64EXPORT_SYMBOL(clk_enable);
65
66void clk_disable(struct clk *clk)
67{
68 unsigned long flags;
69
70 WARN_ON(clk->enabled == 0);
71
72 spin_lock_irqsave(&clocks_lock, flags);
73 if (--clk->enabled == 0)
74 clk->disable();
75 spin_unlock_irqrestore(&clocks_lock, flags);
76}
77EXPORT_SYMBOL(clk_disable);
78
79unsigned long clk_get_rate(struct clk *clk)
80{
81 return clk->rate;
82}
83EXPORT_SYMBOL(clk_get_rate);
84
85
86static void clk_gpio27_enable(void)
87{
88 pxa_gpio_mode(GPIO11_3_6MHz_MD);
89}
90
91static void clk_gpio27_disable(void)
92{
93}
94
95static struct clk clk_gpio27 = {
96 .name = "GPIO27_CLK",
97 .rate = 3686400,
98 .enable = clk_gpio27_enable,
99 .disable = clk_gpio27_disable,
100};
101
102int clk_register(struct clk *clk)
103{
104 down(&clocks_sem);
105 list_add(&clk->node, &clocks);
106 up(&clocks_sem);
107 return 0;
108}
109EXPORT_SYMBOL(clk_register);
110
111void clk_unregister(struct clk *clk)
112{
113 down(&clocks_sem);
114 list_del(&clk->node);
115 up(&clocks_sem);
116}
117EXPORT_SYMBOL(clk_unregister);
118
119static int __init clk_init(void)
120{
121 clk_register(&clk_gpio27);
122 return 0;
123}
124arch_initcall(clk_init);
diff --git a/arch/arm/mach-pxa/corgi.c b/arch/arm/mach-pxa/corgi.c
index 7ffd2de8f2f3..68923b1d2b62 100644
--- a/arch/arm/mach-pxa/corgi.c
+++ b/arch/arm/mach-pxa/corgi.c
@@ -32,7 +32,6 @@
32#include <asm/mach/irq.h> 32#include <asm/mach/irq.h>
33 33
34#include <asm/arch/pxa-regs.h> 34#include <asm/arch/pxa-regs.h>
35#include <asm/arch/irq.h>
36#include <asm/arch/irda.h> 35#include <asm/arch/irda.h>
37#include <asm/arch/mmc.h> 36#include <asm/arch/mmc.h>
38#include <asm/arch/udc.h> 37#include <asm/arch/udc.h>
diff --git a/arch/arm/mach-pxa/poodle.c b/arch/arm/mach-pxa/poodle.c
index 911e6ff5a9bd..b45560a8f6c4 100644
--- a/arch/arm/mach-pxa/poodle.c
+++ b/arch/arm/mach-pxa/poodle.c
@@ -29,7 +29,6 @@
29#include <asm/mach/irq.h> 29#include <asm/mach/irq.h>
30 30
31#include <asm/arch/pxa-regs.h> 31#include <asm/arch/pxa-regs.h>
32#include <asm/arch/irq.h>
33#include <asm/arch/mmc.h> 32#include <asm/arch/mmc.h>
34#include <asm/arch/udc.h> 33#include <asm/arch/udc.h>
35#include <asm/arch/irda.h> 34#include <asm/arch/irda.h>
diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c
index c094d99ebf56..30ec317bbb97 100644
--- a/arch/arm/mach-pxa/spitz.c
+++ b/arch/arm/mach-pxa/spitz.c
@@ -33,7 +33,6 @@
33#include <asm/mach/irq.h> 33#include <asm/mach/irq.h>
34 34
35#include <asm/arch/pxa-regs.h> 35#include <asm/arch/pxa-regs.h>
36#include <asm/arch/irq.h>
37#include <asm/arch/irda.h> 36#include <asm/arch/irda.h>
38#include <asm/arch/mmc.h> 37#include <asm/arch/mmc.h>
39#include <asm/arch/ohci.h> 38#include <asm/arch/ohci.h>
diff --git a/arch/arm/mach-pxa/tosa.c b/arch/arm/mach-pxa/tosa.c
index d168286ed470..66ec71756d0f 100644
--- a/arch/arm/mach-pxa/tosa.c
+++ b/arch/arm/mach-pxa/tosa.c
@@ -34,7 +34,6 @@
34#include <asm/mach/irq.h> 34#include <asm/mach/irq.h>
35 35
36#include <asm/arch/pxa-regs.h> 36#include <asm/arch/pxa-regs.h>
37#include <asm/arch/irq.h>
38#include <asm/arch/tosa.h> 37#include <asm/arch/tosa.h>
39 38
40#include <asm/hardware/scoop.h> 39#include <asm/hardware/scoop.h>