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authorLinus Torvalds <torvalds@linux-foundation.org>2014-12-15 17:36:45 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-12-15 17:36:45 -0800
commit7051d8e6308640aaee2f9d45d0ceaad3a4ee8a78 (patch)
treeb3d15e9232ca6956e255c7e1dd7c3276903440f0 /drivers/power/reset/brcmstb-reboot.c
parentd3255ec483ca048192f6e8a8789e08e32b379b84 (diff)
parentb81180b3fd4814af0459a5b6aeb1ee188fea98dc (diff)
downloadop-kernel-dev-7051d8e6308640aaee2f9d45d0ceaad3a4ee8a78.zip
op-kernel-dev-7051d8e6308640aaee2f9d45d0ceaad3a4ee8a78.tar.gz
Merge tag 'for-v3.19' of git://git.infradead.org/battery-2.6
Pull power supply updates from Sebastian Reichel:: "Power supply and reset changes for the v3.19 series - update power/reset drivers to use kernel restart handler - add power off driver for i.mx6 - add DT support for gpio-charger" * tag 'for-v3.19' of git://git.infradead.org/battery-2.6: power: reset: adjust priority of simple syscon reboot driver power: ds2782_battery: Simplify the PM hooks power/reset: brcmstb: Register with kernel restart handler power/reset: hisi: Register with kernel restart handler power/reset: keystone: Register with kernel restart handler power/reset: axxia: Register with kernel restart handler power/reset: xgene: Register with kernel restart handler power/reset: xgene: Use mdelay instead of jiffies based timeout power/reset: xgene: Use local variable dev instead of pdev->dev power/reset: xgene: Drop devm_kfree power/reset: xgene: Return -ENOMEM if out of memory power/reset: vexpress: Register with kernel restart handler power: reset: imx-snvs-poweroff: add power off driver for i.mx6 power: gpio-charger: add device tree support dt-bindings: document gpio-charger bindings
Diffstat (limited to 'drivers/power/reset/brcmstb-reboot.c')
-rw-r--r--drivers/power/reset/brcmstb-reboot.c28
1 files changed, 19 insertions, 9 deletions
diff --git a/drivers/power/reset/brcmstb-reboot.c b/drivers/power/reset/brcmstb-reboot.c
index c523ea7a..100606f 100644
--- a/drivers/power/reset/brcmstb-reboot.c
+++ b/drivers/power/reset/brcmstb-reboot.c
@@ -16,6 +16,7 @@
#include <linux/init.h>
#include <linux/io.h>
#include <linux/jiffies.h>
+#include <linux/notifier.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
@@ -26,8 +27,6 @@
#include <linux/smp.h>
#include <linux/mfd/syscon.h>
-#include <asm/system_misc.h>
-
#define RESET_SOURCE_ENABLE_REG 1
#define SW_MASTER_RESET_REG 2
@@ -35,7 +34,8 @@ static struct regmap *regmap;
static u32 rst_src_en;
static u32 sw_mstr_rst;
-static void brcmstb_reboot(enum reboot_mode mode, const char *cmd)
+static int brcmstb_restart_handler(struct notifier_block *this,
+ unsigned long mode, void *cmd)
{
int rc;
u32 tmp;
@@ -43,31 +43,38 @@ static void brcmstb_reboot(enum reboot_mode mode, const char *cmd)
rc = regmap_write(regmap, rst_src_en, 1);
if (rc) {
pr_err("failed to write rst_src_en (%d)\n", rc);
- return;
+ return NOTIFY_DONE;
}
rc = regmap_read(regmap, rst_src_en, &tmp);
if (rc) {
pr_err("failed to read rst_src_en (%d)\n", rc);
- return;
+ return NOTIFY_DONE;
}
rc = regmap_write(regmap, sw_mstr_rst, 1);
if (rc) {
pr_err("failed to write sw_mstr_rst (%d)\n", rc);
- return;
+ return NOTIFY_DONE;
}
rc = regmap_read(regmap, sw_mstr_rst, &tmp);
if (rc) {
pr_err("failed to read sw_mstr_rst (%d)\n", rc);
- return;
+ return NOTIFY_DONE;
}
while (1)
;
+
+ return NOTIFY_DONE;
}
+static struct notifier_block brcmstb_restart_nb = {
+ .notifier_call = brcmstb_restart_handler,
+ .priority = 128,
+};
+
static int brcmstb_reboot_probe(struct platform_device *pdev)
{
int rc;
@@ -93,9 +100,12 @@ static int brcmstb_reboot_probe(struct platform_device *pdev)
return -EINVAL;
}
- arm_pm_restart = brcmstb_reboot;
+ rc = register_restart_handler(&brcmstb_restart_nb);
+ if (rc)
+ dev_err(&pdev->dev,
+ "cannot register restart handler (err=%d)\n", rc);
- return 0;
+ return rc;
}
static const struct of_device_id of_match[] = {
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