Currently logic for installing notifications from ACPI devices is
implemented using notify callback in struct acpi_driver. Preparations
are being made to replace acpi_driver with more generic struct
platform_driver, which doesn't contain notify callback. Furthermore
as of now handlers are being called indirectly through
acpi_notify_device(), which decreases performance.
Call acpi_device_install_event_handler() at the end of .add() callback.
Call acpi_device_remove_event_handler() at the beginning of .remove()
callback. Change arguments passed to the notify callback to match with
what's required by acpi_device_install_event_handler().
Signed-off-by: Michal Wilczynski <michal.wilczynski@xxxxxxxxx>
---
drivers/platform/chrome/chromeos_tbmc.c | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/drivers/platform/chrome/chromeos_tbmc.c b/drivers/platform/chrome/chromeos_tbmc.c
index d1cf8f3463ce..ac0f43fc530a 100644
--- a/drivers/platform/chrome/chromeos_tbmc.c
+++ b/drivers/platform/chrome/chromeos_tbmc.c
@@ -45,8 +45,10 @@ static __maybe_unused int chromeos_tbmc_resume(struct device *dev)
return chromeos_tbmc_query_switch(adev, adev->driver_data);
}
-static void chromeos_tbmc_notify(struct acpi_device *adev, u32 event)
+static void chromeos_tbmc_notify(acpi_handle handle, u32 event, void *data)
{
+ struct acpi_device *adev = data;
+
acpi_pm_wakeup_event(&adev->dev);
switch (event) {
case 0x80:
@@ -92,7 +94,13 @@ static int chromeos_tbmc_add(struct acpi_device *adev)
return ret;
}
device_init_wakeup(dev, true);
- return 0;
+
+ return acpi_device_install_event_handler(adev, ACPI_DEVICE_NOTIFY, chromeos_tbmc_notify);
+}
+
+static void chromeos_tbmc_remove(struct acpi_device *adev)
+{
+ acpi_device_remove_event_handler(adev, ACPI_DEVICE_NOTIFY, chromeos_tbmc_notify);
}
static const struct acpi_device_id chromeos_tbmc_acpi_device_ids[] = {
@@ -110,7 +118,7 @@ static struct acpi_driver chromeos_tbmc_driver = {
.ids = chromeos_tbmc_acpi_device_ids,
.ops = {
.add = chromeos_tbmc_add,
- .notify = chromeos_tbmc_notify,
+ .remove = chromeos_tbmc_remove,
},
.drv.pm = &chromeos_tbmc_pm_ops,
};
--
2.40.1
