* [PATCH v3 1/2] platform/x86: acer-wmi: Add platform profile and mode key support for Predator PHN16-71
2023-11-23 15:22 [PATCH v3 0/2] Add support for Acer Predator PHN16-71 SungHwan Jung
@ 2023-11-23 15:22 ` SungHwan Jung
2023-11-23 15:22 ` [PATCH v3 2/2] platform/x86: acer-wmi: add fan speed monitoring " SungHwan Jung
1 sibling, 0 replies; 5+ messages in thread
From: SungHwan Jung @ 2023-11-23 15:22 UTC (permalink / raw)
To: Hans de Goede, Ilpo Järvinen, Lee, Chun-Yi, Jean Delvare,
Guenter Roeck
Cc: SungHwan Jung, platform-driver-x86, linux-kernel, linux-hwmon
The Acer Predator PHN16-71 has the mode key that is used to rotate
thermal modes or toggle turbo mode with predator sense app (ver. 4) on
windows.
This patch includes platform profile and the mode key support for the
device and also includes a small fix for "WMI_gaming_execute_u64"
function.
Signed-off-by: SungHwan Jung <onenowy@gmail.com>
---
drivers/platform/x86/acer-wmi.c | 268 +++++++++++++++++++++++++++++++-
1 file changed, 267 insertions(+), 1 deletion(-)
diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index 0e472aa9b..e3650dce0 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -20,6 +20,7 @@
#include <linux/backlight.h>
#include <linux/leds.h>
#include <linux/platform_device.h>
+#include <linux/platform_profile.h>
#include <linux/acpi.h>
#include <linux/i8042.h>
#include <linux/rfkill.h>
@@ -62,9 +63,12 @@ MODULE_LICENSE("GPL");
#define ACER_WMID_SET_GAMING_LED_METHODID 2
#define ACER_WMID_GET_GAMING_LED_METHODID 4
+#define ACER_WMID_GET_GAMING_SYS_INFO_METHODID 5
#define ACER_WMID_SET_GAMING_FAN_BEHAVIOR 14
#define ACER_WMID_SET_GAMING_MISC_SETTING_METHODID 22
+#define ACER_PREDATOR_V4_THERMAL_PROFILE_EC_OFFSET 0x54
+
/*
* Acer ACPI method GUIDs
*/
@@ -90,6 +94,10 @@ enum acer_wmi_event_ids {
WMID_GAMING_TURBO_KEY_EVENT = 0x7,
};
+enum acer_wmi_predator_v4_sys_info_command {
+ ACER_WMID_CMD_GET_PREDATOR_V4_BAT_STATUS = 0x02,
+};
+
static const struct key_entry acer_wmi_keymap[] __initconst = {
{KE_KEY, 0x01, {KEY_WLAN} }, /* WiFi */
{KE_KEY, 0x03, {KEY_WLAN} }, /* WiFi */
@@ -232,6 +240,7 @@ struct hotkey_function_type_aa {
#define ACER_CAP_TURBO_OC BIT(7)
#define ACER_CAP_TURBO_LED BIT(8)
#define ACER_CAP_TURBO_FAN BIT(9)
+#define ACER_CAP_PLATFORM_PROFILE BIT(10)
/*
* Interface type flags
@@ -259,6 +268,7 @@ static bool ec_raw_mode;
static bool has_type_aa;
static u16 commun_func_bitmap;
static u8 commun_fn_key_number;
+static bool cycle_gaming_thermal_profile = true;
module_param(mailled, int, 0444);
module_param(brightness, int, 0444);
@@ -266,12 +276,16 @@ module_param(threeg, int, 0444);
module_param(force_series, int, 0444);
module_param(force_caps, int, 0444);
module_param(ec_raw_mode, bool, 0444);
+module_param(cycle_gaming_thermal_profile, bool, 0644);
MODULE_PARM_DESC(mailled, "Set initial state of Mail LED");
MODULE_PARM_DESC(brightness, "Set initial LCD backlight brightness");
MODULE_PARM_DESC(threeg, "Set initial state of 3G hardware");
MODULE_PARM_DESC(force_series, "Force a different laptop series");
MODULE_PARM_DESC(force_caps, "Force the capability bitmask to this value");
MODULE_PARM_DESC(ec_raw_mode, "Enable EC raw mode");
+MODULE_PARM_DESC(
+ cycle_gaming_thermal_profile,
+ "Set thermal mode key in cycle mode. Disabling it sets the mode key in turbo toggle mode");
struct acer_data {
int mailled;
@@ -321,6 +335,7 @@ struct quirk_entry {
u8 turbo;
u8 cpu_fans;
u8 gpu_fans;
+ u8 predator_v4;
};
static struct quirk_entry *quirks;
@@ -336,6 +351,9 @@ static void __init set_quirks(void)
if (quirks->turbo)
interface->capability |= ACER_CAP_TURBO_OC | ACER_CAP_TURBO_LED
| ACER_CAP_TURBO_FAN;
+
+ if (quirks->predator_v4)
+ interface->capability |= ACER_CAP_PLATFORM_PROFILE;
}
static int __init dmi_matched(const struct dmi_system_id *dmi)
@@ -370,6 +388,11 @@ static struct quirk_entry quirk_acer_predator_ph315_53 = {
.gpu_fans = 1,
};
+static struct quirk_entry quirk_acer_predator_v4 = {
+ .predator_v4 = 1,
+};
+
+
/* This AMW0 laptop has no bluetooth */
static struct quirk_entry quirk_medion_md_98300 = {
.wireless = 1,
@@ -546,6 +569,15 @@ static const struct dmi_system_id acer_quirks[] __initconst = {
},
.driver_data = &quirk_acer_predator_ph315_53,
},
+ {
+ .callback = dmi_matched,
+ .ident = "Acer Predator PHN16-71",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Predator PHN16-71"),
+ },
+ .driver_data = &quirk_acer_predator_v4,
+ },
{
.callback = set_force_caps,
.ident = "Acer Aspire Switch 10E SW3-016",
@@ -659,6 +691,33 @@ static const struct dmi_system_id non_acer_quirks[] __initconst = {
{}
};
+static struct platform_profile_handler platform_profile_handler;
+static bool platform_profile_support;
+
+/*
+ * The profile used before turbo mode. This variable is needed for
+ * returning from turbo mode when the mode key is in toggle mode.
+ */
+static int last_non_turbo_profile;
+
+enum acer_predator_v4_thermal_profile_ec {
+ ACER_PREDATOR_V4_THERMAL_PROFILE_ECO = 0x04,
+ ACER_PREDATOR_V4_THERMAL_PROFILE_TURBO = 0x03,
+ ACER_PREDATOR_V4_THERMAL_PROFILE_PERFORMANCE = 0x02,
+ ACER_PREDATOR_V4_THERMAL_PROFILE_QUIET = 0x01,
+ ACER_PREDATOR_V4_THERMAL_PROFILE_BALANCED = 0x00,
+};
+
+enum acer_predator_v4_thermal_profile_wmi {
+ ACER_PREDATOR_V4_THERMAL_PROFILE_ECO_WMI = 0x060B,
+ ACER_PREDATOR_V4_THERMAL_PROFILE_TURBO_WMI = 0x050B,
+ ACER_PREDATOR_V4_THERMAL_PROFILE_PERFORMANCE_WMI = 0x040B,
+ ACER_PREDATOR_V4_THERMAL_PROFILE_QUIET_WMI = 0x0B,
+ ACER_PREDATOR_V4_THERMAL_PROFILE_BALANCED_WMI = 0x010B,
+};
+
+
+
/* Find which quirks are needed for a particular vendor/ model pair */
static void __init find_quirks(void)
{
@@ -1339,7 +1398,7 @@ WMI_gaming_execute_u64(u32 method_id, u64 in, u64 *out)
struct acpi_buffer input = { (acpi_size) sizeof(u64), (void *)(&in) };
struct acpi_buffer result = { ACPI_ALLOCATE_BUFFER, NULL };
union acpi_object *obj;
- u32 tmp = 0;
+ u64 tmp = 0;
acpi_status status;
status = wmi_evaluate_method(WMID_GUID4, 0, method_id, &input, &result);
@@ -1698,6 +1757,199 @@ static int acer_toggle_turbo(void)
return turbo_led_state;
}
+static int
+acer_predator_v4_platform_profile_get(struct platform_profile_handler *pprof,
+ enum platform_profile_option *profile)
+{
+ u8 tp;
+ int err;
+
+ err = ec_read(ACER_PREDATOR_V4_THERMAL_PROFILE_EC_OFFSET, &tp);
+
+ if (err < 0)
+ return err;
+
+ switch (tp) {
+ case ACER_PREDATOR_V4_THERMAL_PROFILE_TURBO:
+ *profile = PLATFORM_PROFILE_PERFORMANCE;
+ break;
+ case ACER_PREDATOR_V4_THERMAL_PROFILE_PERFORMANCE:
+ *profile = PLATFORM_PROFILE_BALANCED_PERFORMANCE;
+ break;
+ case ACER_PREDATOR_V4_THERMAL_PROFILE_BALANCED:
+ *profile = PLATFORM_PROFILE_BALANCED;
+ break;
+ case ACER_PREDATOR_V4_THERMAL_PROFILE_QUIET:
+ *profile = PLATFORM_PROFILE_QUIET;
+ break;
+ case ACER_PREDATOR_V4_THERMAL_PROFILE_ECO:
+ *profile = PLATFORM_PROFILE_LOW_POWER;
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ return 0;
+}
+
+static int
+acer_predator_v4_platform_profile_set(struct platform_profile_handler *pprof,
+ enum platform_profile_option profile)
+{
+ int tp;
+ acpi_status status;
+
+ switch (profile) {
+ case PLATFORM_PROFILE_PERFORMANCE:
+ tp = ACER_PREDATOR_V4_THERMAL_PROFILE_TURBO_WMI;
+ break;
+ case PLATFORM_PROFILE_BALANCED_PERFORMANCE:
+ tp = ACER_PREDATOR_V4_THERMAL_PROFILE_PERFORMANCE_WMI;
+ break;
+ case PLATFORM_PROFILE_BALANCED:
+ tp = ACER_PREDATOR_V4_THERMAL_PROFILE_BALANCED_WMI;
+ break;
+ case PLATFORM_PROFILE_QUIET:
+ tp = ACER_PREDATOR_V4_THERMAL_PROFILE_QUIET_WMI;
+ break;
+ case PLATFORM_PROFILE_LOW_POWER:
+ tp = ACER_PREDATOR_V4_THERMAL_PROFILE_ECO_WMI;
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ status = WMI_gaming_execute_u64(
+ ACER_WMID_SET_GAMING_MISC_SETTING_METHODID, tp, NULL);
+
+ if (ACPI_FAILURE(status))
+ return -EIO;
+
+ if (tp != ACER_PREDATOR_V4_THERMAL_PROFILE_TURBO_WMI)
+ last_non_turbo_profile = tp;
+
+ return 0;
+}
+
+static int acer_platform_profile_setup(void)
+{
+ if (quirks->predator_v4) {
+ int err;
+
+ platform_profile_handler.profile_get =
+ acer_predator_v4_platform_profile_get;
+ platform_profile_handler.profile_set =
+ acer_predator_v4_platform_profile_set;
+
+ set_bit(PLATFORM_PROFILE_PERFORMANCE,
+ platform_profile_handler.choices);
+ set_bit(PLATFORM_PROFILE_BALANCED_PERFORMANCE,
+ platform_profile_handler.choices);
+ set_bit(PLATFORM_PROFILE_BALANCED,
+ platform_profile_handler.choices);
+ set_bit(PLATFORM_PROFILE_QUIET,
+ platform_profile_handler.choices);
+ set_bit(PLATFORM_PROFILE_LOW_POWER,
+ platform_profile_handler.choices);
+
+ err = platform_profile_register(&platform_profile_handler);
+ if (err)
+ return err;
+
+ platform_profile_support = true;
+
+ /* Set default non-turbo profile */
+ last_non_turbo_profile =
+ ACER_PREDATOR_V4_THERMAL_PROFILE_BALANCED_WMI;
+ }
+ return 0;
+}
+
+static int acer_thermal_profile_change(void)
+{
+ /*
+ * This mode key can rotate each mode or toggle turbo mode.
+ * On battery, only ECO and BALANCED mode are available.
+ */
+ if (quirks->predator_v4) {
+ u8 current_tp;
+ int tp, err;
+ u64 on_AC;
+ acpi_status status;
+
+ err = ec_read(ACER_PREDATOR_V4_THERMAL_PROFILE_EC_OFFSET,
+ ¤t_tp);
+
+ if (err < 0)
+ return err;
+
+ /* Check power source */
+ status = WMI_gaming_execute_u64(
+ ACER_WMID_GET_GAMING_SYS_INFO_METHODID,
+ ACER_WMID_CMD_GET_PREDATOR_V4_BAT_STATUS, &on_AC);
+
+ if (ACPI_FAILURE(status))
+ return -EIO;
+
+ switch (current_tp) {
+ case ACER_PREDATOR_V4_THERMAL_PROFILE_TURBO:
+ if (!on_AC)
+ tp = ACER_PREDATOR_V4_THERMAL_PROFILE_BALANCED_WMI;
+ else if (cycle_gaming_thermal_profile)
+ tp = ACER_PREDATOR_V4_THERMAL_PROFILE_ECO_WMI;
+ else
+ tp = last_non_turbo_profile;
+ break;
+ case ACER_PREDATOR_V4_THERMAL_PROFILE_PERFORMANCE:
+ if (!on_AC)
+ tp = ACER_PREDATOR_V4_THERMAL_PROFILE_BALANCED_WMI;
+ else
+ tp = ACER_PREDATOR_V4_THERMAL_PROFILE_TURBO_WMI;
+ break;
+ case ACER_PREDATOR_V4_THERMAL_PROFILE_BALANCED:
+ if (!on_AC)
+ tp = ACER_PREDATOR_V4_THERMAL_PROFILE_ECO_WMI;
+ else if (cycle_gaming_thermal_profile)
+ tp = ACER_PREDATOR_V4_THERMAL_PROFILE_PERFORMANCE_WMI;
+ else
+ tp = ACER_PREDATOR_V4_THERMAL_PROFILE_TURBO_WMI;
+ break;
+ case ACER_PREDATOR_V4_THERMAL_PROFILE_QUIET:
+ if (!on_AC)
+ tp = ACER_PREDATOR_V4_THERMAL_PROFILE_BALANCED_WMI;
+ else if (cycle_gaming_thermal_profile)
+ tp = ACER_PREDATOR_V4_THERMAL_PROFILE_BALANCED_WMI;
+ else
+ tp = ACER_PREDATOR_V4_THERMAL_PROFILE_TURBO_WMI;
+ break;
+ case ACER_PREDATOR_V4_THERMAL_PROFILE_ECO:
+ if (!on_AC)
+ tp = ACER_PREDATOR_V4_THERMAL_PROFILE_BALANCED_WMI;
+ else if (cycle_gaming_thermal_profile)
+ tp = ACER_PREDATOR_V4_THERMAL_PROFILE_QUIET_WMI;
+ else
+ tp = ACER_PREDATOR_V4_THERMAL_PROFILE_TURBO_WMI;
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ status = WMI_gaming_execute_u64(
+ ACER_WMID_SET_GAMING_MISC_SETTING_METHODID, tp, NULL);
+
+ if (ACPI_FAILURE(status))
+ return -EIO;
+
+ /* Store non-turbo profile for turbo mode toggle*/
+ if (tp != ACER_PREDATOR_V4_THERMAL_PROFILE_TURBO_WMI)
+ last_non_turbo_profile = tp;
+
+ platform_profile_notify();
+ }
+
+ return 0;
+}
+
/*
* Switch series keyboard dock status
*/
@@ -1997,6 +2249,8 @@ static void acer_wmi_notify(u32 value, void *context)
case WMID_GAMING_TURBO_KEY_EVENT:
if (return_value.key_num == 0x4)
acer_toggle_turbo();
+ if (return_value.key_num == 0x5 && has_cap(ACER_CAP_PLATFORM_PROFILE))
+ acer_thermal_profile_change();
break;
default:
pr_warn("Unknown function number - %d - %d\n",
@@ -2245,6 +2499,12 @@ static int acer_platform_probe(struct platform_device *device)
if (err)
goto error_rfkill;
+ if (has_cap(ACER_CAP_PLATFORM_PROFILE)) {
+ err = acer_platform_profile_setup();
+ if (err)
+ goto error_platform_profile;
+ }
+
return err;
error_rfkill:
@@ -2253,6 +2513,9 @@ static int acer_platform_probe(struct platform_device *device)
error_brightness:
if (has_cap(ACER_CAP_MAILLED))
acer_led_exit();
+error_platform_profile:
+ if (platform_profile_support)
+ platform_profile_remove();
error_mailled:
return err;
}
@@ -2265,6 +2528,9 @@ static void acer_platform_remove(struct platform_device *device)
acer_backlight_exit();
acer_rfkill_exit();
+
+ if (platform_profile_support)
+ platform_profile_remove();
}
#ifdef CONFIG_PM_SLEEP
--
2.43.0
^ permalink raw reply related [flat|nested] 5+ messages in thread* [PATCH v3 2/2] platform/x86: acer-wmi: add fan speed monitoring for Predator PHN16-71
2023-11-23 15:22 [PATCH v3 0/2] Add support for Acer Predator PHN16-71 SungHwan Jung
2023-11-23 15:22 ` [PATCH v3 1/2] platform/x86: acer-wmi: Add platform profile and mode key support for " SungHwan Jung
@ 2023-11-23 15:22 ` SungHwan Jung
2023-11-23 15:30 ` Ilpo Järvinen
2023-11-23 15:31 ` Ilpo Järvinen
1 sibling, 2 replies; 5+ messages in thread
From: SungHwan Jung @ 2023-11-23 15:22 UTC (permalink / raw)
To: Hans de Goede, Ilpo Järvinen, Lee, Chun-Yi, Jean Delvare,
Guenter Roeck
Cc: SungHwan Jung, platform-driver-x86, linux-kernel, linux-hwmon
Support CPU and GPU fan speed monitoring through WMI for Predator
PHN16-71.
This patch depends on patch "platform/x86: acer-wmi: Add platform
profile and mode key support for Predator PHN16-71"
"select ACPI_VIDEO" cause recursive dependency and it is not recommended
to use "select" for visible symbol, "select" has changed to "depends on".
Signed-off-by: SungHwan Jung <onenowy@gmail.com>
---
drivers/platform/x86/Kconfig | 3 +-
drivers/platform/x86/acer-wmi.c | 98 ++++++++++++++++++++++++++++++++-
2 files changed, 99 insertions(+), 2 deletions(-)
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index 7e69fdacc..33ddb644e 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -177,7 +177,8 @@ config ACER_WMI
depends on INPUT
depends on RFKILL || RFKILL = n
depends on ACPI_WMI
- select ACPI_VIDEO
+ depends on HWMON
+ depends on ACPI_VIDEO
select INPUT_SPARSEKMAP
select LEDS_CLASS
select NEW_LEDS
diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index e3650dce0..f2f3b1c45 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -30,6 +30,7 @@
#include <linux/input.h>
#include <linux/input/sparse-keymap.h>
#include <acpi/video.h>
+#include <linux/hwmon.h>
MODULE_AUTHOR("Carlos Corbacho");
MODULE_DESCRIPTION("Acer Laptop WMI Extras Driver");
@@ -96,6 +97,8 @@ enum acer_wmi_event_ids {
enum acer_wmi_predator_v4_sys_info_command {
ACER_WMID_CMD_GET_PREDATOR_V4_BAT_STATUS = 0x02,
+ ACER_WMID_CMD_GET_PREDATOR_V4_CPU_FAN_SPEED = 0x0201,
+ ACER_WMID_CMD_GET_PREDATOR_V4_GPU_FAN_SPEED = 0x0601,
};
static const struct key_entry acer_wmi_keymap[] __initconst = {
@@ -241,6 +244,7 @@ struct hotkey_function_type_aa {
#define ACER_CAP_TURBO_LED BIT(8)
#define ACER_CAP_TURBO_FAN BIT(9)
#define ACER_CAP_PLATFORM_PROFILE BIT(10)
+#define ACER_CAP_FAN_SPEED_READ BIT(11)
/*
* Interface type flags
@@ -353,7 +357,8 @@ static void __init set_quirks(void)
| ACER_CAP_TURBO_FAN;
if (quirks->predator_v4)
- interface->capability |= ACER_CAP_PLATFORM_PROFILE;
+ interface->capability |= ACER_CAP_PLATFORM_PROFILE |
+ ACER_CAP_FAN_SPEED_READ;
}
static int __init dmi_matched(const struct dmi_system_id *dmi)
@@ -1722,6 +1727,25 @@ static int acer_gsensor_event(void)
return 0;
}
+static int acer_get_fan_speed(int fan)
+{
+ if (quirks->predator_v4) {
+ acpi_status status;
+ u64 fanspeed;
+
+ status = WMI_gaming_execute_u64(
+ ACER_WMID_GET_GAMING_SYS_INFO_METHODID,
+ fan == 0 ? ACER_WMID_CMD_GET_PREDATOR_V4_CPU_FAN_SPEED :
+ ACER_WMID_CMD_GET_PREDATOR_V4_GPU_FAN_SPEED,
+ &fanspeed);
+
+ if (ACPI_FAILURE(status))
+ return -EIO;
+ return fanspeed >> 8;
+ }
+ return -EOPNOTSUPP;
+}
+
/*
* Predator series turbo button
*/
@@ -2476,6 +2500,8 @@ static u32 get_wmid_devices(void)
return devices;
}
+static int acer_wmi_hwmon_init(void);
+
/*
* Platform device
*/
@@ -2505,6 +2531,9 @@ static int acer_platform_probe(struct platform_device *device)
goto error_platform_profile;
}
+ if (has_cap(ACER_CAP_FAN_SPEED_READ))
+ err = acer_wmi_hwmon_init();
+
return err;
error_rfkill:
@@ -2617,6 +2646,73 @@ static void __init create_debugfs(void)
&interface->debug.wmid_devices);
}
+static umode_t acer_wmi_hwmon_is_visible(const void *data,
+ enum hwmon_sensor_types type, u32 attr,
+ int channel)
+{
+ switch (type) {
+ case hwmon_fan:
+ if (acer_get_fan_speed(channel) >= 0)
+ return 0444;
+ break;
+ default:
+ return 0;
+ }
+
+ return 0;
+}
+
+static int acer_wmi_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
+ u32 attr, int channel, long *val)
+{
+ int ret;
+
+ switch (type) {
+ case hwmon_fan:
+ ret = acer_get_fan_speed(channel);
+ if (ret < 0)
+ return ret;
+ *val = ret;
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ return 0;
+}
+
+static const struct hwmon_channel_info *const acer_wmi_hwmon_info[] = {
+ HWMON_CHANNEL_INFO(fan, HWMON_F_INPUT, HWMON_F_INPUT), NULL
+};
+
+static const struct hwmon_ops acer_wmi_hwmon_ops = {
+ .read = acer_wmi_hwmon_read,
+ .is_visible = acer_wmi_hwmon_is_visible,
+};
+
+static const struct hwmon_chip_info acer_wmi_hwmon_chip_info = {
+ .ops = &acer_wmi_hwmon_ops,
+ .info = acer_wmi_hwmon_info,
+};
+
+static int acer_wmi_hwmon_init(void)
+{
+ struct device *dev = &acer_platform_device->dev;
+ struct device *hwmon;
+
+ hwmon = devm_hwmon_device_register_with_info(dev, "acer",
+ &acer_platform_driver,
+ &acer_wmi_hwmon_chip_info,
+ NULL);
+
+ if (IS_ERR(hwmon)) {
+ dev_err(dev, "Could not register acer hwmon device\n");
+ return PTR_ERR(hwmon);
+ }
+
+ return 0;
+}
+
static int __init acer_wmi_init(void)
{
int err;
--
2.43.0
^ permalink raw reply related [flat|nested] 5+ messages in thread