summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-pxa/clock-pxa2xx.c
diff options
context:
space:
mode:
authorJames Morris <jmorris@namei.org>2011-01-09 23:46:24 +0100
committerJames Morris <jmorris@namei.org>2011-01-09 23:46:24 +0100
commitd2e7ad19229f982fc1eb731827d82ceac90abfb3 (patch)
tree98a3741b4d4b27a48b3c7ea9babe331e539416a8 /arch/arm/mach-pxa/clock-pxa2xx.c
parentMAINTAINERS: Add tomoyo-dev-en ML. (diff)
parentMerge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/hch/... (diff)
downloadlinux-d2e7ad19229f982fc1eb731827d82ceac90abfb3.tar.xz
linux-d2e7ad19229f982fc1eb731827d82ceac90abfb3.zip
Merge branch 'master' into next
Conflicts: security/smack/smack_lsm.c Verified and added fix by Stephen Rothwell <sfr@canb.auug.org.au> Ok'd by Casey Schaufler <casey@schaufler-ca.com> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'arch/arm/mach-pxa/clock-pxa2xx.c')
-rw-r--r--arch/arm/mach-pxa/clock-pxa2xx.c64
1 files changed, 64 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/clock-pxa2xx.c b/arch/arm/mach-pxa/clock-pxa2xx.c
new file mode 100644
index 000000000000..1ce090448493
--- /dev/null
+++ b/arch/arm/mach-pxa/clock-pxa2xx.c
@@ -0,0 +1,64 @@
+/*
+ * linux/arch/arm/mach-pxa/clock-pxa2xx.c
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/sysdev.h>
+
+#include <mach/pxa2xx-regs.h>
+
+#include "clock.h"
+
+void clk_pxa2xx_cken_enable(struct clk *clk)
+{
+ CKEN |= 1 << clk->cken;
+}
+
+void clk_pxa2xx_cken_disable(struct clk *clk)
+{
+ CKEN &= ~(1 << clk->cken);
+}
+
+const struct clkops clk_pxa2xx_cken_ops = {
+ .enable = clk_pxa2xx_cken_enable,
+ .disable = clk_pxa2xx_cken_disable,
+};
+
+#ifdef CONFIG_PM
+static uint32_t saved_cken;
+
+static int pxa2xx_clock_suspend(struct sys_device *d, pm_message_t state)
+{
+ saved_cken = CKEN;
+ return 0;
+}
+
+static int pxa2xx_clock_resume(struct sys_device *d)
+{
+ CKEN = saved_cken;
+ return 0;
+}
+#else
+#define pxa2xx_clock_suspend NULL
+#define pxa2xx_clock_resume NULL
+#endif
+
+struct sysdev_class pxa2xx_clock_sysclass = {
+ .name = "pxa2xx-clock",
+ .suspend = pxa2xx_clock_suspend,
+ .resume = pxa2xx_clock_resume,
+};
+
+static int __init pxa2xx_clock_init(void)
+{
+ if (cpu_is_pxa2xx())
+ return sysdev_class_register(&pxa2xx_clock_sysclass);
+ return 0;
+}
+postcore_initcall(pxa2xx_clock_init);