[PATCH v6 27/48] power/reset: vexpress-poweroff: Register with kernel power-off handler
From: Guenter Roeck <linux@roeck-us.net>
Date: 2014-11-10 01:50:38
Also in:
lkml
Subsystem:
system reset/shutdown drivers, the rest · Maintainers:
Sebastian Reichel, Linus Torvalds
Register with kernel power-off handler instead of setting pm_power_off directly. Select default priority to reflect that the original code sets pm_power_off unconditionally. Acked-by: Sebastian Reichel <sre@kernel.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net> --- v6: - This patch: No change. Global: Replaced priority defines with enum. v5: - Rebase to v3.18-rc3 v4: - Do not use notifiers but internal functions and data structures to manage the list of power-off handlers. Drop unused parameters from callbacks, and make the power-off function type void 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 drivers/power/reset/vexpress-poweroff.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/drivers/power/reset/vexpress-poweroff.c b/drivers/power/reset/vexpress-poweroff.c
index 4dc102e2..ee1bcb5 100644
--- a/drivers/power/reset/vexpress-poweroff.c
+++ b/drivers/power/reset/vexpress-poweroff.c@@ -36,11 +36,16 @@ 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 void vexpress_power_off(struct power_off_handler_block *this) { vexpress_reset_do(vexpress_power_off_device, "power off"); } +static struct power_off_handler_block vexpress_power_off_hb = { + .handler = vexpress_power_off, + .priority = POWER_OFF_PRIORITY_DEFAULT, +}; + static struct device *vexpress_restart_device; static void vexpress_restart(enum reboot_mode reboot_mode, const char *cmd)
@@ -92,6 +97,7 @@ 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 +112,12 @@ 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_power_off_handler(&vexpress_power_off_hb); + if (ret) { + dev_err(&pdev->dev, + "Failed to register power-off handler\n"); + return ret; + } break; case FUNC_RESET: if (!vexpress_restart_device)
--
1.9.1