ACPI: thinkpad-acpi: add power-management handler capability

Henrique de Moraes Holschuh
2007-07-14T14:12:01Z

Some subdrivers could benefit from resume handling, so add the
infrastructure for simple resume handling.

Signed-off-by: Henrique de Moraes Holschuh <hmh-N3TV7GIv+o9fyO9Q7EP/yw@public.gmane.org>
---
drivers/misc/thinkpad_acpi.c | 16 ++++++++++++++++
drivers/misc/thinkpad_acpi.h | 1 +
2 files changed, 17 insertions(+), 0 deletions(-)

diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c
index c86b228..78914bf 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 00f1bd7..c5c1316 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;

--
1.5.2.1