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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2015-02-10 11:35:36 -0800
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2015-02-10 11:35:36 -0800
commit4ba24fef3eb3b142197135223b90ced2f319cd53 (patch)
treea20c125b27740ec7b4c761b11d801108e1b316b2 /drivers/base/platform.c
parent47c1ffb2b6b630894e9a16442611c056ab21c057 (diff)
parent98a4a59ee31a12105a2b84f5b8b515ac2cb208ef (diff)
Merge branch 'next' into for-linus
Prepare first round of input updates for 3.20.
Diffstat (limited to 'drivers/base/platform.c')
-rw-r--r--drivers/base/platform.c39
1 files changed, 22 insertions, 17 deletions
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index ab4f4ce0272..9421fed4090 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -21,6 +21,7 @@
#include <linux/err.h>
#include <linux/slab.h>
#include <linux/pm_runtime.h>
+#include <linux/pm_domain.h>
#include <linux/idr.h>
#include <linux/acpi.h>
#include <linux/clk/clk-conf.h>
@@ -506,11 +507,12 @@ static int platform_drv_probe(struct device *_dev)
if (ret < 0)
return ret;
- acpi_dev_pm_attach(_dev, true);
-
- ret = drv->probe(dev);
- if (ret)
- acpi_dev_pm_detach(_dev, true);
+ ret = dev_pm_domain_attach(_dev, true);
+ if (ret != -EPROBE_DEFER) {
+ ret = drv->probe(dev);
+ if (ret)
+ dev_pm_domain_detach(_dev, true);
+ }
if (drv->prevent_deferred_probe && ret == -EPROBE_DEFER) {
dev_warn(_dev, "probe deferral not supported\n");
@@ -532,7 +534,7 @@ static int platform_drv_remove(struct device *_dev)
int ret;
ret = drv->remove(dev);
- acpi_dev_pm_detach(_dev, true);
+ dev_pm_domain_detach(_dev, true);
return ret;
}
@@ -543,7 +545,7 @@ static void platform_drv_shutdown(struct device *_dev)
struct platform_device *dev = to_platform_device(_dev);
drv->shutdown(dev);
- acpi_dev_pm_detach(_dev, true);
+ dev_pm_domain_detach(_dev, true);
}
/**
@@ -578,9 +580,10 @@ void platform_driver_unregister(struct platform_driver *drv)
EXPORT_SYMBOL_GPL(platform_driver_unregister);
/**
- * platform_driver_probe - register driver for non-hotpluggable device
+ * __platform_driver_probe - register driver for non-hotpluggable device
* @drv: platform driver structure
* @probe: the driver probe routine, probably from an __init section
+ * @module: module which will be the owner of the driver
*
* Use this instead of platform_driver_register() when you know the device
* is not hotpluggable and has already been registered, and you want to
@@ -596,8 +599,8 @@ EXPORT_SYMBOL_GPL(platform_driver_unregister);
* Returns zero if the driver registered and bound to a device, else returns
* a negative error code and with the driver not registered.
*/
-int __init_or_module platform_driver_probe(struct platform_driver *drv,
- int (*probe)(struct platform_device *))
+int __init_or_module __platform_driver_probe(struct platform_driver *drv,
+ int (*probe)(struct platform_device *), struct module *module)
{
int retval, code;
@@ -612,7 +615,7 @@ int __init_or_module platform_driver_probe(struct platform_driver *drv,
/* temporary section violation during probe() */
drv->probe = probe;
- retval = code = platform_driver_register(drv);
+ retval = code = __platform_driver_register(drv, module);
/*
* Fixup that section violation, being paranoid about code scanning
@@ -631,27 +634,28 @@ int __init_or_module platform_driver_probe(struct platform_driver *drv,
platform_driver_unregister(drv);
return retval;
}
-EXPORT_SYMBOL_GPL(platform_driver_probe);
+EXPORT_SYMBOL_GPL(__platform_driver_probe);
/**
- * platform_create_bundle - register driver and create corresponding device
+ * __platform_create_bundle - register driver and create corresponding device
* @driver: platform driver structure
* @probe: the driver probe routine, probably from an __init section
* @res: set of resources that needs to be allocated for the device
* @n_res: number of resources
* @data: platform specific data for this platform device
* @size: size of platform specific data
+ * @module: module which will be the owner of the driver
*
* Use this in legacy-style modules that probe hardware directly and
* register a single platform device and corresponding platform driver.
*
* Returns &struct platform_device pointer on success, or ERR_PTR() on error.
*/
-struct platform_device * __init_or_module platform_create_bundle(
+struct platform_device * __init_or_module __platform_create_bundle(
struct platform_driver *driver,
int (*probe)(struct platform_device *),
struct resource *res, unsigned int n_res,
- const void *data, size_t size)
+ const void *data, size_t size, struct module *module)
{
struct platform_device *pdev;
int error;
@@ -674,7 +678,7 @@ struct platform_device * __init_or_module platform_create_bundle(
if (error)
goto err_pdev_put;
- error = platform_driver_probe(driver, probe);
+ error = __platform_driver_probe(driver, probe, module);
if (error)
goto err_pdev_del;
@@ -687,7 +691,7 @@ err_pdev_put:
err_out:
return ERR_PTR(error);
}
-EXPORT_SYMBOL_GPL(platform_create_bundle);
+EXPORT_SYMBOL_GPL(__platform_create_bundle);
/* modalias support enables more hands-off userspace setup:
* (a) environment variable lets new-style hotplug events work once system is
@@ -1004,6 +1008,7 @@ int __init platform_bus_init(void)
error = bus_register(&platform_bus_type);
if (error)
device_unregister(&platform_bus);
+ of_platform_register_reconfig_notifier();
return error;
}