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Subject[PATCH v3 26/47] power/reset: msm-poweroff: Register with kernel power-off handler
Date
Register with kernel power-off handler instead of setting pm_power_off
directly. Select fallback priority since the code does not really poweroff
the system but resets it instead.

Acked-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
v3:
- Replace poweroff in all newly introduced variables and in text
with power_off or power-off as appropriate
- Replace POWEROFF_PRIORITY_xxx with POWER_OFF_PRIORITY_xxx
v2:
- Use define to specify poweroff handler priority
- Fix headline and description
- Merge with restart handler code now used in same driver
- Use dev_warn instead of dev_err

drivers/power/reset/msm-poweroff.c | 13 ++++++++-----
1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/power/reset/msm-poweroff.c b/drivers/power/reset/msm-poweroff.c
index 4702efd..c63c070 100644
--- a/drivers/power/reset/msm-poweroff.c
+++ b/drivers/power/reset/msm-poweroff.c
@@ -19,10 +19,12 @@
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/module.h>
+#include <linux/notifier.h>
#include <linux/reboot.h>
#include <linux/pm.h>

static void __iomem *msm_ps_hold;
+
static int do_msm_restart(struct notifier_block *nb, unsigned long action,
void *data)
{
@@ -37,11 +39,11 @@ static struct notifier_block restart_nb = {
.priority = 128,
};

-static void do_msm_poweroff(void)
-{
+static struct notifier_block msm_power_off_nb = {
/* TODO: Add poweroff capability */
- do_msm_restart(&restart_nb, 0, NULL);
-}
+ .notifier_call = do_msm_restart,
+ .priority = POWER_OFF_PRIORITY_FALLBACK,
+};

static int msm_restart_probe(struct platform_device *pdev)
{
@@ -55,7 +57,8 @@ static int msm_restart_probe(struct platform_device *pdev)

register_restart_handler(&restart_nb);

- pm_power_off = do_msm_poweroff;
+ if (register_power_off_handler(&msm_power_off_nb))
+ dev_warn(&pdev->dev, "Failed to register power-off handler\n");

return 0;
}
--
1.9.1


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