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/x86/topstar-laptop.c | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/drivers/platform/x86/topstar-laptop.c b/drivers/platform/x86/topstar-laptop.c
index 20df1ebefc30..cfe2a92ef1f5 100644
--- a/drivers/platform/x86/topstar-laptop.c
+++ b/drivers/platform/x86/topstar-laptop.c
@@ -232,12 +232,15 @@ static int topstar_acpi_fncx_switch(struct acpi_device *device, bool state)
return 0;
}
-static void topstar_acpi_notify(struct acpi_device *device, u32 event)
+static void topstar_acpi_notify(acpi_handle handle, u32 event, void *data)
{
- struct topstar_laptop *topstar = acpi_driver_data(device);
+ struct acpi_device *device = data;
+ struct topstar_laptop *topstar;
static bool dup_evnt[2];
bool *dup;
+ topstar = acpi_driver_data(device);
+
/* 0x83 and 0x84 key events comes duplicated... */
if (event == 0x83 || event == 0x84) {
dup = &dup_evnt[event - 0x83];
@@ -319,6 +322,10 @@ static int topstar_acpi_add(struct acpi_device *device)
goto err_input_exit;
}
+ err = acpi_device_install_event_handler(device, ACPI_DEVICE_NOTIFY, topstar_acpi_notify);
+ if (err)
+ goto err_input_exit;
+
return 0;
err_input_exit:
@@ -336,6 +343,8 @@ static void topstar_acpi_remove(struct acpi_device *device)
{
struct topstar_laptop *topstar = acpi_driver_data(device);
+ acpi_device_remove_event_handler(device, ACPI_DEVICE_NOTIFY, topstar_acpi_notify);
+
if (led_workaround)
topstar_led_exit(topstar);
@@ -360,7 +369,6 @@ static struct acpi_driver topstar_acpi_driver = {
.ops = {
.add = topstar_acpi_add,
.remove = topstar_acpi_remove,
- .notify = topstar_acpi_notify,
},
};
--
2.40.1
