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authorLinus Torvalds <torvalds@g5.osdl.org>2006-03-22 17:32:09 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-22 17:32:09 -0800
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 32526a0a6f8..382644401a4 100644
--- a/arch/arm/mach-pxa/Makefile
+++ b/arch/arm/mach-pxa/Makefile
@@ -3,7 +3,7 @@
#
# Common support (must be linked before board specific support)
-obj-y += generic.o irq.o dma.o time.o
+obj-y += clock.o generic.o irq.o dma.o time.o
obj-$(CONFIG_PXA25x) += pxa25x.o
obj-$(CONFIG_PXA27x) += pxa27x.o
diff --git a/arch/arm/mach-pxa/clock.c b/arch/arm/mach-pxa/clock.c
new file mode 100644
index 00000000000..8f7c90a0593
--- /dev/null
+++ b/arch/arm/mach-pxa/clock.c
@@ -0,0 +1,124 @@
+/*
+ * linux/arch/arm/mach-sa1100/clock.c
+ */
+#include <linux/module.h>
+#include <linux/kernel.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 <asm/arch/pxa-regs.h>
+#include <asm/hardware.h>
+#include <asm/semaphore.h>
+
+struct clk {
+ struct list_head node;
+ unsigned long rate;
+ struct module *owner;
+ const char *name;
+ unsigned int enabled;
+ void (*enable)(void);
+ void (*disable)(void);
+};
+
+static LIST_HEAD(clocks);
+static DECLARE_MUTEX(clocks_sem);
+static DEFINE_SPINLOCK(clocks_lock);
+
+struct clk *clk_get(struct device *dev, const char *id)
+{
+ struct clk *p, *clk = ERR_PTR(-ENOENT);
+
+ down(&clocks_sem);
+ list_for_each_entry(p, &clocks, node) {
+ if (strcmp(id, p->name) == 0 && try_module_get(p->owner)) {
+ clk = p;
+ break;
+ }
+ }
+ up(&clocks_sem);
+
+ return clk;
+}
+EXPORT_SYMBOL(clk_get);
+
+void clk_put(struct clk *clk)
+{
+ module_put(clk->owner);
+}
+EXPORT_SYMBOL(clk_put);
+
+int clk_enable(struct clk *clk)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&clocks_lock, flags);
+ if (clk->enabled++ == 0)
+ clk->enable();
+ spin_unlock_irqrestore(&clocks_lock, flags);
+ return 0;
+}
+EXPORT_SYMBOL(clk_enable);
+
+void clk_disable(struct clk *clk)
+{
+ unsigned long flags;
+
+ WARN_ON(clk->enabled == 0);
+
+ spin_lock_irqsave(&clocks_lock, flags);
+ if (--clk->enabled == 0)
+ clk->disable();
+ spin_unlock_irqrestore(&clocks_lock, flags);
+}
+EXPORT_SYMBOL(clk_disable);
+
+unsigned long clk_get_rate(struct clk *clk)
+{
+ return clk->rate;
+}
+EXPORT_SYMBOL(clk_get_rate);
+
+
+static void clk_gpio27_enable(void)
+{
+ pxa_gpio_mode(GPIO11_3_6MHz_MD);
+}
+
+static void clk_gpio27_disable(void)
+{
+}
+
+static struct clk clk_gpio27 = {
+ .name = "GPIO27_CLK",
+ .rate = 3686400,
+ .enable = clk_gpio27_enable,
+ .disable = clk_gpio27_disable,
+};
+
+int clk_register(struct clk *clk)
+{
+ down(&clocks_sem);
+ list_add(&clk->node, &clocks);
+ up(&clocks_sem);
+ return 0;
+}
+EXPORT_SYMBOL(clk_register);
+
+void clk_unregister(struct clk *clk)
+{
+ down(&clocks_sem);
+ list_del(&clk->node);
+ up(&clocks_sem);
+}
+EXPORT_SYMBOL(clk_unregister);
+
+static int __init clk_init(void)
+{
+ clk_register(&clk_gpio27);
+ return 0;
+}
+arch_initcall(clk_init);
diff --git a/arch/arm/mach-pxa/corgi.c b/arch/arm/mach-pxa/corgi.c
index 7ffd2de8f2f..68923b1d2b6 100644
--- a/arch/arm/mach-pxa/corgi.c
+++ b/arch/arm/mach-pxa/corgi.c
@@ -32,7 +32,6 @@
#include <asm/mach/irq.h>
#include <asm/arch/pxa-regs.h>
-#include <asm/arch/irq.h>
#include <asm/arch/irda.h>
#include <asm/arch/mmc.h>
#include <asm/arch/udc.h>
diff --git a/arch/arm/mach-pxa/poodle.c b/arch/arm/mach-pxa/poodle.c
index 911e6ff5a9b..b45560a8f6c 100644
--- a/arch/arm/mach-pxa/poodle.c
+++ b/arch/arm/mach-pxa/poodle.c
@@ -29,7 +29,6 @@
#include <asm/mach/irq.h>
#include <asm/arch/pxa-regs.h>
-#include <asm/arch/irq.h>
#include <asm/arch/mmc.h>
#include <asm/arch/udc.h>
#include <asm/arch/irda.h>
diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c
index c094d99ebf5..30ec317bbb9 100644
--- a/arch/arm/mach-pxa/spitz.c
+++ b/arch/arm/mach-pxa/spitz.c
@@ -33,7 +33,6 @@
#include <asm/mach/irq.h>
#include <asm/arch/pxa-regs.h>
-#include <asm/arch/irq.h>
#include <asm/arch/irda.h>
#include <asm/arch/mmc.h>
#include <asm/arch/ohci.h>
diff --git a/arch/arm/mach-pxa/tosa.c b/arch/arm/mach-pxa/tosa.c
index d168286ed47..66ec71756d0 100644
--- a/arch/arm/mach-pxa/tosa.c
+++ b/arch/arm/mach-pxa/tosa.c
@@ -34,7 +34,6 @@
#include <asm/mach/irq.h>
#include <asm/arch/pxa-regs.h>
-#include <asm/arch/irq.h>
#include <asm/arch/tosa.h>
#include <asm/hardware/scoop.h>