diff options
| author |   Pramod Gurav <pramod.gurav@smartplayin.com> | 2014-09-25 17:03:51 +0530 |
|---|---|---|
| committer |   Sebastian Reichel <sre@kernel.org> | 2014-09-26 19:54:33 +0200 |
| commit | 18a702e0de9879d5c0225a09f494443f0b91a0cc (patch) | |
| tree | 5b7ad26d477002d20f79caaf7314c775b833e5f2 /drivers/power/reset | |
| parent | power: Add simple gpio-restart driver (diff) | |
| download | linux-dev-18a702e0de9879d5c0225a09f494443f0b91a0cc.tar.xz linux-dev-18a702e0de9879d5c0225a09f494443f0b91a0cc.zip | |
power: reset: use restart_notifier mechanism for msm-poweroff
This change replaces use of arm_pm_restart with recently introduced
reset mechanism in Linux kernel called restart_notifier.
Choosing priority 128, which is default priority, as according to
documentation, this mechanism is sufficient to restart the entire system.
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Josh Cartwright <joshc@codeaurora.org>
Cc: Sebastian Reichel <sre@kernel.org>
Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: linux-pm@vger.kernel.org
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Pramod Gurav <pramod.gurav@smartplayin.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Diffstat (limited to 'drivers/power/reset')
| -rw-r--r-- | drivers/power/reset/msm-poweroff.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/drivers/power/reset/msm-poweroff.c b/drivers/power/reset/msm-poweroff.c index 774f9a3b310d..4702efdfe466 100644 --- a/drivers/power/reset/msm-poweroff.c +++ b/drivers/power/reset/msm-poweroff.c @@ -20,21 +20,27 @@ #include <linux/platform_device.h> #include <linux/module.h> #include <linux/reboot.h> - -#include <asm/system_misc.h> +#include <linux/pm.h> static void __iomem *msm_ps_hold; - -static void do_msm_restart(enum reboot_mode reboot_mode, const char *cmd) +static int do_msm_restart(struct notifier_block *nb, unsigned long action, + void *data) { writel(0, msm_ps_hold); mdelay(10000); + + return NOTIFY_DONE; } +static struct notifier_block restart_nb = { + .notifier_call = do_msm_restart, + .priority = 128, +}; + static void do_msm_poweroff(void) { /* TODO: Add poweroff capability */ - do_msm_restart(REBOOT_HARD, NULL); + do_msm_restart(&restart_nb, 0, NULL); } static int msm_restart_probe(struct platform_device *pdev) @@ -47,8 +53,10 @@ static int msm_restart_probe(struct platform_device *pdev) if (IS_ERR(msm_ps_hold)) return PTR_ERR(msm_ps_hold); + register_restart_handler(&restart_nb); + pm_power_off = do_msm_poweroff; - arm_pm_restart = do_msm_restart; + return 0; } |