diff mbox series

[v4,23/35] platform/x86/panasonic-laptop: Move handler installing logic to driver

Message ID 20230601131739.300760-24-michal.wilczynski@intel.com
State New
Headers show
Series [v4,01/35] acpi: Adjust functions installing bus event handlers | expand

Commit Message

Michal Wilczynski June 1, 2023, 1:17 p.m. UTC
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@intel.com>
---
 drivers/platform/x86/panasonic-laptop.c | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/platform/x86/panasonic-laptop.c b/drivers/platform/x86/panasonic-laptop.c
index cf845ee1c7b1..723a898738d0 100644
--- a/drivers/platform/x86/panasonic-laptop.c
+++ b/drivers/platform/x86/panasonic-laptop.c
@@ -184,7 +184,7 @@  enum SINF_BITS { SINF_NUM_BATTERIES = 0,
 
 static int acpi_pcc_hotkey_add(struct acpi_device *device);
 static void acpi_pcc_hotkey_remove(struct acpi_device *device);
-static void acpi_pcc_hotkey_notify(struct acpi_device *device, u32 event);
+static void acpi_pcc_hotkey_notify(acpi_handle handle, u32 event, void *data);
 
 static const struct acpi_device_id pcc_device_ids[] = {
 	{ "MAT0012", 0},
@@ -207,7 +207,6 @@  static struct acpi_driver acpi_pcc_driver = {
 	.ops =		{
 				.add =		acpi_pcc_hotkey_add,
 				.remove =	acpi_pcc_hotkey_remove,
-				.notify =	acpi_pcc_hotkey_notify,
 			},
 	.drv.pm =	&acpi_pcc_hotkey_pm,
 };
@@ -833,9 +832,12 @@  static void acpi_pcc_generate_keyinput(struct pcc_acpi *pcc)
 		pr_err("Unknown hotkey event: 0x%04llx\n", result);
 }
 
-static void acpi_pcc_hotkey_notify(struct acpi_device *device, u32 event)
+static void acpi_pcc_hotkey_notify(acpi_handle handle, u32 event, void *data)
 {
-	struct pcc_acpi *pcc = acpi_driver_data(device);
+	struct acpi_device *device = data;
+	struct pcc_acpi *pcc;
+
+	pcc = acpi_driver_data(device);
 
 	switch (event) {
 	case HKEY_NOTIFY:
@@ -1049,6 +1051,12 @@  static int acpi_pcc_hotkey_add(struct acpi_device *device)
 	}
 
 	i8042_install_filter(panasonic_i8042_filter);
+
+	result = acpi_device_install_event_handler(device, ACPI_DEVICE_NOTIFY,
+						   acpi_pcc_hotkey_notify);
+	if (result)
+		goto out_platform;
+
 	return 0;
 
 out_platform:
@@ -1072,6 +1080,8 @@  static void acpi_pcc_hotkey_remove(struct acpi_device *device)
 	if (!device || !pcc)
 		return;
 
+	acpi_device_remove_event_handler(device, ACPI_DEVICE_NOTIFY, acpi_pcc_hotkey_notify);
+
 	i8042_remove_filter(panasonic_i8042_filter);
 
 	if (pcc->platform) {