Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index fcfeadd..60c18f2 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Acer WMI Laptop Extras
*
@@ -6,20 +7,6 @@
* Based on acer_acpi:
* Copyright (C) 2005-2007 E.M. Smith
* Copyright (C) 2007-2008 Carlos Corbacho <cathectic@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
@@ -272,7 +259,6 @@
struct acer_debug {
struct dentry *root;
- struct dentry *devices;
u32 wmid_devices;
};
@@ -1015,6 +1001,7 @@
*value = tmp & 0x1;
return 0;
}
+ /* fall through */
default:
return AE_ERROR;
}
@@ -1341,6 +1328,7 @@
status = AMW0_get_u32(value, cap);
break;
}
+ /* fall through */
case ACER_WMID:
status = WMID_get_u32(value, cap);
break;
@@ -1383,6 +1371,7 @@
return AMW0_set_u32(value, cap);
}
+ /* fall through */
case ACER_WMID:
return WMID_set_u32(value, cap);
case ACER_WMID_v2:
@@ -1392,6 +1381,7 @@
return wmid_v2_set_u32(value, cap);
else if (wmi_has_guid(WMID_GUID2))
return WMID_set_u32(value, cap);
+ /* fall through */
default:
return AE_BAD_PARAMETER;
}
@@ -1891,52 +1881,17 @@
return status;
}
-#define ACER_WMID_ACCEL_HID "BST0001"
-
-static acpi_status __init acer_wmi_get_handle_cb(acpi_handle ah, u32 level,
- void *ctx, void **retval)
-{
- struct acpi_device *dev;
-
- if (!strcmp(ctx, "SENR")) {
- if (acpi_bus_get_device(ah, &dev))
- return AE_OK;
- if (strcmp(ACER_WMID_ACCEL_HID, acpi_device_hid(dev)))
- return AE_OK;
- } else
- return AE_OK;
-
- *(acpi_handle *)retval = ah;
-
- return AE_CTRL_TERMINATE;
-}
-
-static int __init acer_wmi_get_handle(const char *name, const char *prop,
- acpi_handle *ah)
-{
- acpi_status status;
- acpi_handle handle;
-
- BUG_ON(!name || !ah);
-
- handle = NULL;
- status = acpi_get_devices(prop, acer_wmi_get_handle_cb,
- (void *)name, &handle);
- if (ACPI_SUCCESS(status) && handle) {
- *ah = handle;
- return 0;
- } else {
- return -ENODEV;
- }
-}
-
static int __init acer_wmi_accel_setup(void)
{
+ struct acpi_device *adev;
int err;
- err = acer_wmi_get_handle("SENR", ACER_WMID_ACCEL_HID, &gsensor_handle);
- if (err)
- return err;
+ adev = acpi_dev_get_first_match_dev("BST0001", NULL, -1);
+ if (!adev)
+ return -ENODEV;
+
+ gsensor_handle = acpi_device_handle(adev);
+ acpi_dev_put(adev);
interface->capability |= ACER_CAP_ACCEL;
@@ -2161,29 +2116,15 @@
static void remove_debugfs(void)
{
- debugfs_remove(interface->debug.devices);
- debugfs_remove(interface->debug.root);
+ debugfs_remove_recursive(interface->debug.root);
}
-static int __init create_debugfs(void)
+static void __init create_debugfs(void)
{
interface->debug.root = debugfs_create_dir("acer-wmi", NULL);
- if (!interface->debug.root) {
- pr_err("Failed to create debugfs directory");
- return -ENOMEM;
- }
- interface->debug.devices = debugfs_create_u32("devices", S_IRUGO,
- interface->debug.root,
- &interface->debug.wmid_devices);
- if (!interface->debug.devices)
- goto error_debugfs;
-
- return 0;
-
-error_debugfs:
- remove_debugfs();
- return -ENOMEM;
+ debugfs_create_u32("devices", S_IRUGO, interface->debug.root,
+ &interface->debug.wmid_devices);
}
static int __init acer_wmi_init(void)
@@ -2313,9 +2254,7 @@
if (wmi_has_guid(WMID_GUID2)) {
interface->debug.wmid_devices = get_wmid_devices();
- err = create_debugfs();
- if (err)
- goto error_create_debugfs;
+ create_debugfs();
}
/* Override any initial settings with values from the commandline */
@@ -2323,8 +2262,6 @@
return 0;
-error_create_debugfs:
- platform_device_del(acer_platform_device);
error_device_add:
platform_device_put(acer_platform_device);
error_device_alloc: