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authorHeikki Krogerus <heikki.krogerus@linux.intel.com>2018-11-09 15:21:35 +0100
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2018-11-26 18:19:11 +0100
commit7847a1455fc4574d53e349d60feb1e1106cdc012 (patch)
treea83039d4fa290580b01760aec3aa48b5f0f8e2ab /drivers/acpi
parentdrivers core: Prepare support for multiple platform notifications (diff)
downloadlinux-7847a1455fc4574d53e349d60feb1e1106cdc012.tar.xz
linux-7847a1455fc4574d53e349d60feb1e1106cdc012.zip
ACPI / glue: Add acpi_platform_notify() function
Instead of relying on the "platform_notify" callback hook, introducing separate notification function acpi_platform_notify() and calling that directly from drivers core when device entries are added and removed. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/bus.c1
-rw-r--r--drivers/acpi/glue.c21
-rw-r--r--drivers/acpi/internal.h1
3 files changed, 13 insertions, 10 deletions
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index bb3d96dea6db..99d820a693a8 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -1237,7 +1237,6 @@ static int __init acpi_init(void)
acpi_kobj = NULL;
}
- init_acpi_device_notify();
result = acpi_bus_init();
if (result) {
disable_acpi();
diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c
index 12ba2bee8789..edd10b3c7ec8 100644
--- a/drivers/acpi/glue.c
+++ b/drivers/acpi/glue.c
@@ -296,7 +296,7 @@ int acpi_unbind_one(struct device *dev)
}
EXPORT_SYMBOL_GPL(acpi_unbind_one);
-static int acpi_platform_notify(struct device *dev)
+static int acpi_device_notify(struct device *dev)
{
struct acpi_bus_type *type = acpi_get_bus_type(dev);
struct acpi_device *adev;
@@ -343,7 +343,7 @@ static int acpi_platform_notify(struct device *dev)
return ret;
}
-static int acpi_platform_notify_remove(struct device *dev)
+static int acpi_device_notify_remove(struct device *dev)
{
struct acpi_device *adev = ACPI_COMPANION(dev);
struct acpi_bus_type *type;
@@ -361,12 +361,17 @@ static int acpi_platform_notify_remove(struct device *dev)
return 0;
}
-void __init init_acpi_device_notify(void)
+int acpi_platform_notify(struct device *dev, enum kobject_action action)
{
- if (platform_notify || platform_notify_remove) {
- printk(KERN_ERR PREFIX "Can't use platform_notify\n");
- return;
+ switch (action) {
+ case KOBJ_ADD:
+ acpi_device_notify(dev);
+ break;
+ case KOBJ_REMOVE:
+ acpi_device_notify_remove(dev);
+ break;
+ default:
+ break;
}
- platform_notify = acpi_platform_notify;
- platform_notify_remove = acpi_platform_notify_remove;
+ return 0;
}
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 530a3f675490..83a7dfb7d1cf 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -23,7 +23,6 @@
int early_acpi_osi_init(void);
int acpi_osi_init(void);
acpi_status acpi_os_initialize1(void);
-void init_acpi_device_notify(void);
int acpi_scan_init(void);
void acpi_pci_root_init(void);
void acpi_pci_link_init(void);