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authorGuenter Roeck <linux@roeck-us.net>2015-01-25 21:30:40 +0100
committerSebastian Reichel <sre@kernel.org>2015-01-25 22:12:45 +0100
commit25a5b57dd76fbcbcb4107aa95400862cb924470d (patch)
tree3cc34c636362f41884c97cc120183e8bdbf332b0
parentpower: test_power: Use enum as index for array of supplies (diff)
downloadlinux-25a5b57dd76fbcbcb4107aa95400862cb924470d.tar.xz
linux-25a5b57dd76fbcbcb4107aa95400862cb924470d.zip
power/reset: arm-versatile: Register with kernel restart handler
Register with kernel restart handler instead of setting arm_pm_restart directly. Select high priority since the restart handler is instantiated through devicetree, indicating that it should be used if configured. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Sebastian Reichel <sre@kernel.org>
-rw-r--r--drivers/power/reset/arm-versatile-reboot.c17
1 files changed, 14 insertions, 3 deletions
diff --git a/drivers/power/reset/arm-versatile-reboot.c b/drivers/power/reset/arm-versatile-reboot.c
index adea9d0c38e0..b208073c887d 100644
--- a/drivers/power/reset/arm-versatile-reboot.c
+++ b/drivers/power/reset/arm-versatile-reboot.c
@@ -13,7 +13,6 @@
#include <linux/reboot.h>
#include <linux/regmap.h>
#include <linux/of.h>
-#include <asm/system_misc.h>
#define INTEGRATOR_HDR_CTRL_OFFSET 0x0C
#define INTEGRATOR_HDR_LOCK_OFFSET 0x14
@@ -69,7 +68,8 @@ static const struct of_device_id versatile_reboot_of_match[] = {
{},
};
-static void versatile_reboot(enum reboot_mode mode, const char *cmd)
+static int versatile_reboot(struct notifier_block *this, unsigned long mode,
+ void *cmd)
{
/* Unlock the reset register */
/* Then hit reset on the different machines */
@@ -113,12 +113,20 @@ static void versatile_reboot(enum reboot_mode mode, const char *cmd)
break;
}
dsb();
+
+ return NOTIFY_DONE;
}
+static struct notifier_block versatile_reboot_nb = {
+ .notifier_call = versatile_reboot,
+ .priority = 192,
+};
+
static int __init versatile_reboot_probe(void)
{
const struct of_device_id *reboot_id;
struct device_node *np;
+ int err;
np = of_find_matching_node_and_match(NULL, versatile_reboot_of_match,
&reboot_id);
@@ -130,7 +138,10 @@ static int __init versatile_reboot_probe(void)
if (IS_ERR(syscon_regmap))
return PTR_ERR(syscon_regmap);
- arm_pm_restart = versatile_reboot;
+ err = register_restart_handler(&versatile_reboot_nb);
+ if (err)
+ return err;
+
pr_info("versatile reboot driver registered\n");
return 0;
}