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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2012-11-29 21:41:25 +0100
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2012-11-29 21:41:25 +0100
commitbcacbdbdc8d2481f10f09fea8e470d3b36751043 (patch)
tree6519d94f28133f0e2ad0983bd79cf34e6ba08706 /drivers/base
parentacd844333c89e8afd85e8ca47b4363789c93780d (diff)
parent752cad760b19e85926341880dc317a99f400eacc (diff)
downloadlwn-bcacbdbdc8d2481f10f09fea8e470d3b36751043.tar.gz
lwn-bcacbdbdc8d2481f10f09fea8e470d3b36751043.zip
Merge branch 'acpi-enumeration'
* acpi-enumeration: ACPI: remove unnecessary INIT_LIST_HEAD ACPI / platform: include missed header into acpi_platform.c platform / ACPI: Attach/detach ACPI PM during probe/remove/shutdown mmc: sdhci-acpi: add SDHCI ACPI driver ACPI: add SDHCI to ACPI platform devices ACPI / PNP: skip ACPI device nodes associated with physical nodes already i2c / ACPI: add ACPI enumeration support ACPI / platform: Initialize ACPI handles of platform devices in advance ACPI / driver core: Introduce struct acpi_dev_node and related macros ACPI: Allow ACPI handles of devices to be initialized in advance ACPI / resources: Use AE_CTRL_TERMINATE to terminate resources walks ACPI: Centralized processing of ACPI device resources ACPI / platform: Use common ACPI device resource parsing routines ACPI: Move device resources interpretation code from PNP to ACPI core ACPI / platform: use ACPI device name instead of _HID._UID ACPI: Add support for platform bus type ACPI / ia64: Export acpi_[un]register_gsi() ACPI / x86: Export acpi_[un]register_gsi() ACPI: Provide generic functions for matching ACPI device nodes driver core / ACPI: Move ACPI support to core device and driver types
Diffstat (limited to 'drivers/base')
-rw-r--r--drivers/base/platform.c26
1 files changed, 24 insertions, 2 deletions
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 72c776f2a1f5..b2ee3bcd5a41 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -21,6 +21,7 @@
#include <linux/slab.h>
#include <linux/pm_runtime.h>
#include <linux/idr.h>
+#include <linux/acpi.h>
#include "base.h"
#include "power/power.h"
@@ -436,6 +437,7 @@ struct platform_device *platform_device_register_full(
goto err_alloc;
pdev->dev.parent = pdevinfo->parent;
+ ACPI_HANDLE_SET(&pdev->dev, pdevinfo->acpi_node.handle);
if (pdevinfo->dma_mask) {
/*
@@ -466,6 +468,7 @@ struct platform_device *platform_device_register_full(
ret = platform_device_add(pdev);
if (ret) {
err:
+ ACPI_HANDLE_SET(&pdev->dev, NULL);
kfree(pdev->dev.dma_mask);
err_alloc:
@@ -481,8 +484,16 @@ static int platform_drv_probe(struct device *_dev)
{
struct platform_driver *drv = to_platform_driver(_dev->driver);
struct platform_device *dev = to_platform_device(_dev);
+ int ret;
- return drv->probe(dev);
+ if (ACPI_HANDLE(_dev))
+ acpi_dev_pm_attach(_dev, true);
+
+ ret = drv->probe(dev);
+ if (ret && ACPI_HANDLE(_dev))
+ acpi_dev_pm_detach(_dev, true);
+
+ return ret;
}
static int platform_drv_probe_fail(struct device *_dev)
@@ -494,8 +505,13 @@ static int platform_drv_remove(struct device *_dev)
{
struct platform_driver *drv = to_platform_driver(_dev->driver);
struct platform_device *dev = to_platform_device(_dev);
+ int ret;
+
+ ret = drv->remove(dev);
+ if (ACPI_HANDLE(_dev))
+ acpi_dev_pm_detach(_dev, true);
- return drv->remove(dev);
+ return ret;
}
static void platform_drv_shutdown(struct device *_dev)
@@ -504,6 +520,8 @@ static void platform_drv_shutdown(struct device *_dev)
struct platform_device *dev = to_platform_device(_dev);
drv->shutdown(dev);
+ if (ACPI_HANDLE(_dev))
+ acpi_dev_pm_detach(_dev, true);
}
/**
@@ -709,6 +727,10 @@ static int platform_match(struct device *dev, struct device_driver *drv)
if (of_driver_match_device(dev, drv))
return 1;
+ /* Then try ACPI style match */
+ if (acpi_driver_match_device(dev, drv))
+ return 1;
+
/* Then try to match against the id table */
if (pdrv->id_table)
return platform_match_id(pdrv->id_table, pdev) != NULL;