From mboxrd@z Thu Jan 1 00:00:00 1970 From: linux@roeck-us.net (Guenter Roeck) Date: Mon, 6 Oct 2014 22:28:27 -0700 Subject: [PATCH 25/44] power/reset: vexpress-poweroff: Register with kernel poweroff handler In-Reply-To: <1412659726-29957-1-git-send-email-linux@roeck-us.net> References: <1412659726-29957-1-git-send-email-linux@roeck-us.net> Message-ID: <1412659726-29957-26-git-send-email-linux@roeck-us.net> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Register with kernel poweroff handler instead of setting pm_power_off directly. Signed-off-by: Guenter Roeck --- drivers/power/reset/vexpress-poweroff.c | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-) diff --git a/drivers/power/reset/vexpress-poweroff.c b/drivers/power/reset/vexpress-poweroff.c index 4dc102e2..060c55d 100644 --- a/drivers/power/reset/vexpress-poweroff.c +++ b/drivers/power/reset/vexpress-poweroff.c @@ -12,6 +12,7 @@ */ #include +#include #include #include #include @@ -36,11 +37,19 @@ static void vexpress_reset_do(struct device *dev, const char *what) static struct device *vexpress_power_off_device; -static void vexpress_power_off(void) +static int vexpress_power_off(struct notifier_block *this, + unsigned long unused1, void *unused2) { vexpress_reset_do(vexpress_power_off_device, "power off"); + + return NOTIFY_DONE; } +static struct notifier_block vexpress_poweroff_nb = { + .notifier_call = vexpress_power_off, + .priority = 128, +}; + static struct device *vexpress_restart_device; static void vexpress_restart(enum reboot_mode reboot_mode, const char *cmd) @@ -92,6 +101,7 @@ static int vexpress_reset_probe(struct platform_device *pdev) const struct of_device_id *match = of_match_device(vexpress_reset_of_match, &pdev->dev); struct regmap *regmap; + int ret; if (match) func = (enum vexpress_reset_func)match->data; @@ -106,7 +116,12 @@ static int vexpress_reset_probe(struct platform_device *pdev) switch (func) { case FUNC_SHUTDOWN: vexpress_power_off_device = &pdev->dev; - pm_power_off = vexpress_power_off; + ret = register_poweroff_handler(&vexpress_poweroff_nb); + if (ret) { + dev_err(&pdev->dev, + "Failed to register poweroff handler\n"); + return ret; + } break; case FUNC_RESET: if (!vexpress_restart_device) -- 1.9.1