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authorHenrique de Moraes Holschuh <hmh@hmh.eng.br>2007-07-19 06:45:37 +0400
committerLen Brown <len.brown@intel.com>2007-07-22 07:46:08 +0400
commite295e8508c1dd56e06c73e78a2f67f2eb563e74f (patch)
tree076ac3317d2158e76d1326912f190c354f895b65 /drivers/misc
parent1a343760b516ca5466d201bec32b1794858b18a5 (diff)
downloadlinux-e295e8508c1dd56e06c73e78a2f67f2eb563e74f.tar.xz
ACPI: thinkpad-acpi: add power-management handler capability
Some subdrivers could benefit from resume handling, so add the infrastructure for simple resume handling. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/misc')
-rw-r--r--drivers/misc/thinkpad_acpi.c16
-rw-r--r--drivers/misc/thinkpad_acpi.h1
2 files changed, 17 insertions, 0 deletions
diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c
index c86b228375cc..78914bf2166d 100644
--- a/drivers/misc/thinkpad_acpi.c
+++ b/drivers/misc/thinkpad_acpi.c
@@ -519,11 +519,27 @@ static struct platform_device *tpacpi_pdev;
static struct class_device *tpacpi_hwmon;
static struct input_dev *tpacpi_inputdev;
+
+static int tpacpi_resume_handler(struct platform_device *pdev)
+{
+ struct ibm_struct *ibm, *itmp;
+
+ list_for_each_entry_safe(ibm, itmp,
+ &tpacpi_all_drivers,
+ all_drivers) {
+ if (ibm->resume)
+ (ibm->resume)();
+ }
+
+ return 0;
+}
+
static struct platform_driver tpacpi_pdriver = {
.driver = {
.name = IBM_DRVR_NAME,
.owner = THIS_MODULE,
},
+ .resume = tpacpi_resume_handler,
};
diff --git a/drivers/misc/thinkpad_acpi.h b/drivers/misc/thinkpad_acpi.h
index 00f1bd73df8f..c5c1316ae3a6 100644
--- a/drivers/misc/thinkpad_acpi.h
+++ b/drivers/misc/thinkpad_acpi.h
@@ -205,6 +205,7 @@ struct ibm_struct {
int (*read) (char *);
int (*write) (char *);
void (*exit) (void);
+ void (*resume) (void);
struct list_head all_drivers;