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platform/x86: lg-laptop: Use ACPI device handle when evaluating WMAB/WMBB

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On the LG Gram 16Z90S, the WMAB and WMBB ACPI methods are not mapped
under \XINI, but instead are mapped under \_SB.XINI.

The reason for this is that the LGEX0820 ACPI device used by this
driver is mapped at \_SB.XINI, so the ACPI methods where moved as well
to appear below the LGEX0820 ACPI device.

Fix this by using the ACPI handle from the ACPI device when evaluating
both methods.

Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218901
Tested-by: Agathe Boutmy <agathe@boutmy.com>
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20240606233540.9774-5-W_Armin@gmx.de
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Armin Wolf 2024-06-07 01:35:40 +02:00 committed by Hans de Goede
parent 58a54f27a0
commit b27ea27955
1 changed files with 33 additions and 46 deletions
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79
drivers/platform/x86/lg-laptop.c
View file

@ -39,8 +39,6 @@ MODULE_LICENSE("GPL");
#define WMI_METHOD_WMBB "2B4F501A-BD3C-4394-8DCF-00A7D2BC8210"
#define WMI_EVENT_GUID WMI_EVENT_GUID0
#define WMAB_METHOD "\\XINI.WMAB"
#define WMBB_METHOD "\\XINI.WMBB"
#define SB_GGOV_METHOD "\\_SB.GGOV"
#define GOV_TLED 0x2020008
#define WM_GET 1
@ -74,7 +72,7 @@ static u32 inited;
static int battery_limit_use_wmbb;
static struct led_classdev kbd_backlight;
static enum led_brightness get_kbd_backlight_level(void);
static enum led_brightness get_kbd_backlight_level(struct device *dev);
static const struct key_entry wmi_keymap[] = {
{KE_KEY, 0x70, {KEY_F15} }, /* LG control panel (F1) */
@ -127,11 +125,10 @@ static int ggov(u32 arg0)
return res;
}
static union acpi_object *lg_wmab(u32 method, u32 arg1, u32 arg2)
static union acpi_object *lg_wmab(struct device *dev, u32 method, u32 arg1, u32 arg2)
{
union acpi_object args[3];
acpi_status status;
acpi_handle handle;
struct acpi_object_list arg;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
@ -142,29 +139,22 @@ static union acpi_object *lg_wmab(u32 method, u32 arg1, u32 arg2)
args[2].type = ACPI_TYPE_INTEGER;
args[2].integer.value = arg2;
status = acpi_get_handle(NULL, (acpi_string) WMAB_METHOD, &handle);
if (ACPI_FAILURE(status)) {
pr_err("Cannot get handle");
return NULL;
}
arg.count = 3;
arg.pointer = args;
status = acpi_evaluate_object(handle, NULL, &arg, &buffer);
status = acpi_evaluate_object(ACPI_HANDLE(dev), "WMAB", &arg, &buffer);
if (ACPI_FAILURE(status)) {
acpi_handle_err(handle, "WMAB: call failed.\n");
dev_err(dev, "WMAB: call failed.\n");
return NULL;
}
return buffer.pointer;
}
static union acpi_object *lg_wmbb(u32 method_id, u32 arg1, u32 arg2)
static union acpi_object *lg_wmbb(struct device *dev, u32 method_id, u32 arg1, u32 arg2)
{
union acpi_object args[3];
acpi_status status;
acpi_handle handle;
struct acpi_object_list arg;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
u8 buf[32];
@ -180,18 +170,12 @@ static union acpi_object *lg_wmbb(u32 method_id, u32 arg1, u32 arg2)
args[2].buffer.length = 32;
args[2].buffer.pointer = buf;
status = acpi_get_handle(NULL, (acpi_string)WMBB_METHOD, &handle);
if (ACPI_FAILURE(status)) {
pr_err("Cannot get handle");
return NULL;
}
arg.count = 3;
arg.pointer = args;
status = acpi_evaluate_object(handle, NULL, &arg, &buffer);
status = acpi_evaluate_object(ACPI_HANDLE(dev), "WMBB", &arg, &buffer);
if (ACPI_FAILURE(status)) {
acpi_handle_err(handle, "WMAB: call failed.\n");
dev_err(dev, "WMBB: call failed.\n");
return NULL;
}
@ -222,7 +206,7 @@ static void wmi_notify(u32 value, void *context)
if (eventcode == 0x10000000) {
led_classdev_notify_brightness_hw_changed(
&kbd_backlight, get_kbd_backlight_level());
&kbd_backlight, get_kbd_backlight_level(kbd_backlight.dev->parent));
} else {
key = sparse_keymap_entry_from_scancode(
wmi_input_dev, eventcode);
@ -287,7 +271,7 @@ static ssize_t fan_mode_store(struct device *dev,
if (ret)
return ret;
r = lg_wmab(WM_FAN_MODE, WM_GET, 0);
r = lg_wmab(dev, WM_FAN_MODE, WM_GET, 0);
if (!r)
return -EIO;
@ -298,9 +282,9 @@ static ssize_t fan_mode_store(struct device *dev,
m = r->integer.value;
kfree(r);
r = lg_wmab(WM_FAN_MODE, WM_SET, (m & 0xffffff0f) | (value << 4));
r = lg_wmab(dev, WM_FAN_MODE, WM_SET, (m & 0xffffff0f) | (value << 4));
kfree(r);
r = lg_wmab(WM_FAN_MODE, WM_SET, (m & 0xfffffff0) | value);
r = lg_wmab(dev, WM_FAN_MODE, WM_SET, (m & 0xfffffff0) | value);
kfree(r);
return count;
@ -312,7 +296,7 @@ static ssize_t fan_mode_show(struct device *dev,
unsigned int status;
union acpi_object *r;
r = lg_wmab(WM_FAN_MODE, WM_GET, 0);
r = lg_wmab(dev, WM_FAN_MODE, WM_GET, 0);
if (!r)
return -EIO;
@ -339,7 +323,7 @@ static ssize_t usb_charge_store(struct device *dev,
if (ret)
return ret;
r = lg_wmbb(WMBB_USB_CHARGE, WM_SET, value);
r = lg_wmbb(dev, WMBB_USB_CHARGE, WM_SET, value);
if (!r)
return -EIO;
@ -353,7 +337,7 @@ static ssize_t usb_charge_show(struct device *dev,
unsigned int status;
union acpi_object *r;
r = lg_wmbb(WMBB_USB_CHARGE, WM_GET, 0);
r = lg_wmbb(dev, WMBB_USB_CHARGE, WM_GET, 0);
if (!r)
return -EIO;
@ -381,7 +365,7 @@ static ssize_t reader_mode_store(struct device *dev,
if (ret)
return ret;
r = lg_wmab(WM_READER_MODE, WM_SET, value);
r = lg_wmab(dev, WM_READER_MODE, WM_SET, value);
if (!r)
return -EIO;
@ -395,7 +379,7 @@ static ssize_t reader_mode_show(struct device *dev,
unsigned int status;
union acpi_object *r;
r = lg_wmab(WM_READER_MODE, WM_GET, 0);
r = lg_wmab(dev, WM_READER_MODE, WM_GET, 0);
if (!r)
return -EIO;
@ -423,7 +407,7 @@ static ssize_t fn_lock_store(struct device *dev,
if (ret)
return ret;
r = lg_wmab(WM_FN_LOCK, WM_SET, value);
r = lg_wmab(dev, WM_FN_LOCK, WM_SET, value);
if (!r)
return -EIO;
@ -437,7 +421,7 @@ static ssize_t fn_lock_show(struct device *dev,
unsigned int status;
union acpi_object *r;
r = lg_wmab(WM_FN_LOCK, WM_GET, 0);
r = lg_wmab(dev, WM_FN_LOCK, WM_GET, 0);
if (!r)
return -EIO;
@ -467,9 +451,9 @@ static ssize_t charge_control_end_threshold_store(struct device *dev,
union acpi_object *r;
if (battery_limit_use_wmbb)
r = lg_wmbb(WMBB_BATT_LIMIT, WM_SET, value);
r = lg_wmbb(&pf_device->dev, WMBB_BATT_LIMIT, WM_SET, value);
else
r = lg_wmab(WM_BATT_LIMIT, WM_SET, value);
r = lg_wmab(&pf_device->dev, WM_BATT_LIMIT, WM_SET, value);
if (!r)
return -EIO;
@ -488,7 +472,7 @@ static ssize_t charge_control_end_threshold_show(struct device *device,
union acpi_object *r;
if (battery_limit_use_wmbb) {
r = lg_wmbb(WMBB_BATT_LIMIT, WM_GET, 0);
r = lg_wmbb(&pf_device->dev, WMBB_BATT_LIMIT, WM_GET, 0);
if (!r)
return -EIO;
@ -499,7 +483,7 @@ static ssize_t charge_control_end_threshold_show(struct device *device,
status = r->buffer.pointer[0x10];
} else {
r = lg_wmab(WM_BATT_LIMIT, WM_GET, 0);
r = lg_wmab(&pf_device->dev, WM_BATT_LIMIT, WM_GET, 0);
if (!r)
return -EIO;
@ -578,7 +562,7 @@ static void tpad_led_set(struct led_classdev *cdev,
{
union acpi_object *r;
r = lg_wmab(WM_TLED, WM_SET, brightness > LED_OFF);
r = lg_wmab(cdev->dev->parent, WM_TLED, WM_SET, brightness > LED_OFF);
kfree(r);
}
@ -600,16 +584,16 @@ static void kbd_backlight_set(struct led_classdev *cdev,
val = 0;
if (brightness >= LED_FULL)
val = 0x24;
r = lg_wmab(WM_KEY_LIGHT, WM_SET, val);
r = lg_wmab(cdev->dev->parent, WM_KEY_LIGHT, WM_SET, val);
kfree(r);
}
static enum led_brightness get_kbd_backlight_level(void)
static enum led_brightness get_kbd_backlight_level(struct device *dev)
{
union acpi_object *r;
int val;
r = lg_wmab(WM_KEY_LIGHT, WM_GET, 0);
r = lg_wmab(dev, WM_KEY_LIGHT, WM_GET, 0);
if (!r)
return LED_OFF;
@ -637,7 +621,7 @@ static enum led_brightness get_kbd_backlight_level(void)
static enum led_brightness kbd_backlight_get(struct led_classdev *cdev)
{
return get_kbd_backlight_level();
return get_kbd_backlight_level(cdev->dev->parent);
}
static LED_DEVICE(kbd_backlight, 255, LED_BRIGHT_HW_CHANGED);
@ -664,6 +648,11 @@ static struct platform_driver pf_driver = {
static int acpi_add(struct acpi_device *device)
{
struct platform_device_info pdev_info = {
.fwnode = acpi_fwnode_handle(device),
.name = PLATFORM_NAME,
.id = PLATFORM_DEVID_NONE,
};
int ret;
const char *product;
int year = 2017;
@ -675,9 +664,7 @@ static int acpi_add(struct acpi_device *device)
if (ret)
return ret;
pf_device = platform_device_register_simple(PLATFORM_NAME,
PLATFORM_DEVID_NONE,
NULL, 0);
pf_device = platform_device_register_full(&pdev_info);
if (IS_ERR(pf_device)) {
ret = PTR_ERR(pf_device);
pf_device = NULL;