[RFC PATCH v2 0/3] platform/x86: acer-wmi: Add fan control support

[RFC PATCH v2 0/3] platform/x86: acer-wmi: Add fan control support

[Armin Wolf]

This experimental patch series aims to add fan control support to the
acer-wmi driver. The patches are compile-tested only and need to be
tested on real hardware to verify that they actually work.

I CCed two users who requested support for this feature. I would be
very happy if both of you could test those patches and report back.

I am ready to help you both with compiling a custom linux kernel for
testing this series.

Changes since v2:
- remove duplicate include and replace hwmon_pwm_mode with
  hwmon_pwm_enable in second patch

Armin Wolf (3):
  platform/x86: acer-wmi: Fix setting of fan behavior
  platform/x86: acer-wmi: Add fan control support
  platform/x86: acer-wmi: Enable fan control for PH16-72 and PT14-51

 drivers/platform/x86/acer-wmi.c | 298 +++++++++++++++++++++++++++++---
 1 file changed, 273 insertions(+), 25 deletions(-)

--
2.39.5

[RFC PATCH v2 1/3] platform/x86: acer-wmi: Fix setting of fan behavior

[Armin Wolf]

After studying the linuwu_sense driver
(https://github.com/0x7375646F/Linuwu-Sense) i was able to understand
the meaning of the SetGamingFanBehavior() WMI method:

- the first 16-bit are a bitmap of all fans affected by a fan behavior
  change request.

- the next 8 bits contain four fan mode fields (2-bit), each being
  associated with a bit inside the fan bitmap.

There are three fan modes: auto, turbo and custom.

Use this newfound knowledge to fix the turbo fan handling by setting
the correct bits before calling SetGamingFanBehavior(). Also check
the result of the WMI method call and return an error should the ACPI
firmware signal failure.

Signed-off-by: Armin Wolf <W_Armin@gmx.de>
---
 drivers/platform/x86/acer-wmi.c | 75 +++++++++++++++++++++++----------
 1 file changed, 52 insertions(+), 23 deletions(-)

diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index 69336bd778ee..f20a882e3650 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -68,10 +68,19 @@ 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_FAN_BEHAVIOR_METHODID 14
 #define ACER_WMID_SET_GAMING_MISC_SETTING_METHODID 22
 #define ACER_WMID_GET_GAMING_MISC_SETTING_METHODID 23

+#define ACER_GAMING_FAN_BEHAVIOR_ID_MASK GENMASK_ULL(15, 0)
+#define ACER_GAMING_FAN_BEHAVIOR_SET_MODE_MASK GENMASK_ULL(23, 16)
+
+#define ACER_GAMING_FAN_BEHAVIOR_CPU BIT(0)
+#define ACER_GAMING_FAN_BEHAVIOR_GPU BIT(3)
+
+#define ACER_GAMING_FAN_BEHAVIOR_CPU_MODE_MASK GENMASK(1, 0)
+#define ACER_GAMING_FAN_BEHAVIOR_GPU_MODE_MASK GENMASK(7, 6)
+
 #define ACER_GAMING_MISC_SETTING_STATUS_MASK GENMASK_ULL(7, 0)
 #define ACER_GAMING_MISC_SETTING_INDEX_MASK GENMASK_ULL(7, 0)
 #define ACER_GAMING_MISC_SETTING_VALUE_MASK GENMASK_ULL(15, 8)
@@ -121,6 +130,12 @@ enum acer_wmi_predator_v4_sensor_id {
 	ACER_WMID_SENSOR_GPU_TEMPERATURE	= 0x0A,
 };

+enum acer_wmi_gaming_fan_mode {
+	ACER_WMID_FAN_MODE_AUTO		= 0x01,
+	ACER_WMID_FAN_MODE_TURBO	= 0x02,
+	ACER_WMID_FAN_MODE_CUSTOM	= 0x03,
+};
+
 enum acer_wmi_predator_v4_oc {
 	ACER_WMID_OC_NORMAL			= 0x0000,
 	ACER_WMID_OC_TURBO			= 0x0002,
@@ -1565,9 +1580,6 @@ static acpi_status WMID_gaming_set_u64(u64 value, u32 cap)
 	case ACER_CAP_TURBO_LED:
 		method_id = ACER_WMID_SET_GAMING_LED_METHODID;
 		break;
-	case ACER_CAP_TURBO_FAN:
-		method_id = ACER_WMID_SET_GAMING_FAN_BEHAVIOR;
-		break;
 	default:
 		return AE_BAD_PARAMETER;
 	}
@@ -1618,25 +1630,42 @@ static int WMID_gaming_get_sys_info(u32 command, u64 *out)
 	return 0;
 }

+static int WMID_gaming_set_fan_behavior(u16 fan_bitmap, u8 mode_bitmap)
+{
+	acpi_status status;
+	u64 input = 0;
+	u64 result;
+
+	input |= FIELD_PREP(ACER_GAMING_FAN_BEHAVIOR_ID_MASK, fan_bitmap);
+	input |= FIELD_PREP(ACER_GAMING_FAN_BEHAVIOR_SET_MODE_MASK, mode_bitmap);
+
+	status = WMI_gaming_execute_u64(ACER_WMID_SET_GAMING_FAN_BEHAVIOR_METHODID, input,
+					&result);
+	if (ACPI_FAILURE(status))
+		return -EIO;
+
+	/* TODO: Proper error handling */
+	pr_notice("Fan behavior return status: %llu\n", result);
+
+	return 0;
+}
+
 static void WMID_gaming_set_fan_mode(u8 fan_mode)
 {
-	/* fan_mode = 1 is used for auto, fan_mode = 2 used for turbo*/
-	u64 gpu_fan_config1 = 0, gpu_fan_config2 = 0;
-	int i;
-
-	if (quirks->cpu_fans > 0)
-		gpu_fan_config2 |= 1;
-	for (i = 0; i < (quirks->cpu_fans + quirks->gpu_fans); ++i)
-		gpu_fan_config2 |= 1 << (i + 1);
-	for (i = 0; i < quirks->gpu_fans; ++i)
-		gpu_fan_config2 |= 1 << (i + 3);
-	if (quirks->cpu_fans > 0)
-		gpu_fan_config1 |= fan_mode;
-	for (i = 0; i < (quirks->cpu_fans + quirks->gpu_fans); ++i)
-		gpu_fan_config1 |= fan_mode << (2 * i + 2);
-	for (i = 0; i < quirks->gpu_fans; ++i)
-		gpu_fan_config1 |= fan_mode << (2 * i + 6);
-	WMID_gaming_set_u64(gpu_fan_config2 | gpu_fan_config1 << 16, ACER_CAP_TURBO_FAN);
+	u16 mode_bitmap = 0;
+	u16 fan_bitmap = 0;
+
+	if (quirks->cpu_fans > 0) {
+		fan_bitmap |= ACER_GAMING_FAN_BEHAVIOR_CPU;
+		mode_bitmap |= FIELD_PREP(ACER_GAMING_FAN_BEHAVIOR_CPU_MODE_MASK, fan_mode);
+	}
+
+	if (quirks->gpu_fans > 0) {
+		fan_bitmap |= ACER_GAMING_FAN_BEHAVIOR_GPU;
+		mode_bitmap |= FIELD_PREP(ACER_GAMING_FAN_BEHAVIOR_GPU_MODE_MASK, fan_mode);
+	}
+
+	WMID_gaming_set_fan_behavior(fan_bitmap, mode_bitmap);
 }

 static int WMID_gaming_set_misc_setting(enum acer_wmi_gaming_misc_setting setting, u8 value)
@@ -1923,7 +1952,7 @@ static int acer_toggle_turbo(void)
 		WMID_gaming_set_u64(0x1, ACER_CAP_TURBO_LED);

 		/* Set FAN mode to auto */
-		WMID_gaming_set_fan_mode(0x1);
+		WMID_gaming_set_fan_mode(ACER_WMID_FAN_MODE_AUTO);

 		/* Set OC to normal */
 		if (has_cap(ACER_CAP_TURBO_OC)) {
@@ -1937,7 +1966,7 @@ static int acer_toggle_turbo(void)
 		WMID_gaming_set_u64(0x10001, ACER_CAP_TURBO_LED);

 		/* Set FAN mode to turbo */
-		WMID_gaming_set_fan_mode(0x2);
+		WMID_gaming_set_fan_mode(ACER_WMID_FAN_MODE_TURBO);

 		/* Set OC to turbo mode */
 		if (has_cap(ACER_CAP_TURBO_OC)) {
--
2.39.5

Re: [RFC PATCH v2 1/3] platform/x86: acer-wmi: Fix setting of fan behavior

[Kurt Borja]

On Sat Feb 15, 2025 at 12:45 PM -05, Armin Wolf wrote:
> After studying the linuwu_sense driver
> (https://github.com/0x7375646F/Linuwu-Sense) i was able to understand
> the meaning of the SetGamingFanBehavior() WMI method:
>
> - the first 16-bit are a bitmap of all fans affected by a fan behavior
>   change request.
>
> - the next 8 bits contain four fan mode fields (2-bit), each being
>   associated with a bit inside the fan bitmap.
>
> There are three fan modes: auto, turbo and custom.
>
> Use this newfound knowledge to fix the turbo fan handling by setting
> the correct bits before calling SetGamingFanBehavior(). Also check
> the result of the WMI method call and return an error should the ACPI
> firmware signal failure.
>
> Signed-off-by: Armin Wolf <W_Armin@gmx.de>
> ---
>  drivers/platform/x86/acer-wmi.c | 75 +++++++++++++++++++++++----------
>  1 file changed, 52 insertions(+), 23 deletions(-)
>
> diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
> index 69336bd778ee..f20a882e3650 100644
> --- a/drivers/platform/x86/acer-wmi.c
> +++ b/drivers/platform/x86/acer-wmi.c
> @@ -68,10 +68,19 @@ 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_FAN_BEHAVIOR_METHODID 14
>  #define ACER_WMID_SET_GAMING_MISC_SETTING_METHODID 22
>  #define ACER_WMID_GET_GAMING_MISC_SETTING_METHODID 23
>
> +#define ACER_GAMING_FAN_BEHAVIOR_ID_MASK GENMASK_ULL(15, 0)
> +#define ACER_GAMING_FAN_BEHAVIOR_SET_MODE_MASK GENMASK_ULL(23, 16)
> +
> +#define ACER_GAMING_FAN_BEHAVIOR_CPU BIT(0)
> +#define ACER_GAMING_FAN_BEHAVIOR_GPU BIT(3)
> +
> +#define ACER_GAMING_FAN_BEHAVIOR_CPU_MODE_MASK GENMASK(1, 0)
> +#define ACER_GAMING_FAN_BEHAVIOR_GPU_MODE_MASK GENMASK(7, 6)
> +
>  #define ACER_GAMING_MISC_SETTING_STATUS_MASK GENMASK_ULL(7, 0)
>  #define ACER_GAMING_MISC_SETTING_INDEX_MASK GENMASK_ULL(7, 0)
>  #define ACER_GAMING_MISC_SETTING_VALUE_MASK GENMASK_ULL(15, 8)
> @@ -121,6 +130,12 @@ enum acer_wmi_predator_v4_sensor_id {
>  	ACER_WMID_SENSOR_GPU_TEMPERATURE	= 0x0A,
>  };
>
> +enum acer_wmi_gaming_fan_mode {
> +	ACER_WMID_FAN_MODE_AUTO		= 0x01,
> +	ACER_WMID_FAN_MODE_TURBO	= 0x02,
> +	ACER_WMID_FAN_MODE_CUSTOM	= 0x03,
> +};
> +
>  enum acer_wmi_predator_v4_oc {
>  	ACER_WMID_OC_NORMAL			= 0x0000,
>  	ACER_WMID_OC_TURBO			= 0x0002,
> @@ -1565,9 +1580,6 @@ static acpi_status WMID_gaming_set_u64(u64 value, u32 cap)
>  	case ACER_CAP_TURBO_LED:
>  		method_id = ACER_WMID_SET_GAMING_LED_METHODID;
>  		break;
> -	case ACER_CAP_TURBO_FAN:
> -		method_id = ACER_WMID_SET_GAMING_FAN_BEHAVIOR;
> -		break;
>  	default:
>  		return AE_BAD_PARAMETER;
>  	}
> @@ -1618,25 +1630,42 @@ static int WMID_gaming_get_sys_info(u32 command, u64 *out)
>  	return 0;
>  }
>
> +static int WMID_gaming_set_fan_behavior(u16 fan_bitmap, u8 mode_bitmap)
> +{
> +	acpi_status status;
> +	u64 input = 0;
> +	u64 result;
> +
> +	input |= FIELD_PREP(ACER_GAMING_FAN_BEHAVIOR_ID_MASK, fan_bitmap);
> +	input |= FIELD_PREP(ACER_GAMING_FAN_BEHAVIOR_SET_MODE_MASK, mode_bitmap);
> +
> +	status = WMI_gaming_execute_u64(ACER_WMID_SET_GAMING_FAN_BEHAVIOR_METHODID, input,
> +					&result);
> +	if (ACPI_FAILURE(status))
> +		return -EIO;
> +
> +	/* TODO: Proper error handling */
> +	pr_notice("Fan behavior return status: %llu\n", result);

I guess this is missing some ACER_GAMING_FAN_BEHAVIOR_STATUS_MASK
handling right? This shouldn't mess with testing tho.

> +
> +	return 0;
> +}
> +
>  static void WMID_gaming_set_fan_mode(u8 fan_mode)
>  {
> -	/* fan_mode = 1 is used for auto, fan_mode = 2 used for turbo*/
> -	u64 gpu_fan_config1 = 0, gpu_fan_config2 = 0;
> -	int i;
> -
> -	if (quirks->cpu_fans > 0)
> -		gpu_fan_config2 |= 1;
> -	for (i = 0; i < (quirks->cpu_fans + quirks->gpu_fans); ++i)
> -		gpu_fan_config2 |= 1 << (i + 1);

I agree on with your explaination in the previous thread, so after the
TODO is addressed:

Reviewed-by: Kurt Borja <kuurtb@gmail.com>

I do wonder tho, isn't there a WMI operation to get the bitmap of
available fans? Like in the case of available thermal profiles and
sensors.

-- 
 ~ Kurt

> -	for (i = 0; i < quirks->gpu_fans; ++i)
> -		gpu_fan_config2 |= 1 << (i + 3);
> -	if (quirks->cpu_fans > 0)
> -		gpu_fan_config1 |= fan_mode;
> -	for (i = 0; i < (quirks->cpu_fans + quirks->gpu_fans); ++i)
> -		gpu_fan_config1 |= fan_mode << (2 * i + 2);
> -	for (i = 0; i < quirks->gpu_fans; ++i)
> -		gpu_fan_config1 |= fan_mode << (2 * i + 6);
> -	WMID_gaming_set_u64(gpu_fan_config2 | gpu_fan_config1 << 16, ACER_CAP_TURBO_FAN);
> +	u16 mode_bitmap = 0;
> +	u16 fan_bitmap = 0;
> +
> +	if (quirks->cpu_fans > 0) {
> +		fan_bitmap |= ACER_GAMING_FAN_BEHAVIOR_CPU;
> +		mode_bitmap |= FIELD_PREP(ACER_GAMING_FAN_BEHAVIOR_CPU_MODE_MASK, fan_mode);
> +	}
> +
> +	if (quirks->gpu_fans > 0) {
> +		fan_bitmap |= ACER_GAMING_FAN_BEHAVIOR_GPU;
> +		mode_bitmap |= FIELD_PREP(ACER_GAMING_FAN_BEHAVIOR_GPU_MODE_MASK, fan_mode);
> +	}
> +
> +	WMID_gaming_set_fan_behavior(fan_bitmap, mode_bitmap);
>  }
>
>  static int WMID_gaming_set_misc_setting(enum acer_wmi_gaming_misc_setting setting, u8 value)
> @@ -1923,7 +1952,7 @@ static int acer_toggle_turbo(void)
>  		WMID_gaming_set_u64(0x1, ACER_CAP_TURBO_LED);
>
>  		/* Set FAN mode to auto */
> -		WMID_gaming_set_fan_mode(0x1);
> +		WMID_gaming_set_fan_mode(ACER_WMID_FAN_MODE_AUTO);
>
>  		/* Set OC to normal */
>  		if (has_cap(ACER_CAP_TURBO_OC)) {
> @@ -1937,7 +1966,7 @@ static int acer_toggle_turbo(void)
>  		WMID_gaming_set_u64(0x10001, ACER_CAP_TURBO_LED);
>
>  		/* Set FAN mode to turbo */
> -		WMID_gaming_set_fan_mode(0x2);
> +		WMID_gaming_set_fan_mode(ACER_WMID_FAN_MODE_TURBO);
>
>  		/* Set OC to turbo mode */
>  		if (has_cap(ACER_CAP_TURBO_OC)) {
> --
> 2.39.5

Re: [RFC PATCH v2 1/3] platform/x86: acer-wmi: Fix setting of fan behavior

[Armin Wolf]

Am 15.02.25 um 19:51 schrieb Kurt Borja:

> On Sat Feb 15, 2025 at 12:45 PM -05, Armin Wolf wrote:
>> After studying the linuwu_sense driver
>> (https://github.com/0x7375646F/Linuwu-Sense) i was able to understand
>> the meaning of the SetGamingFanBehavior() WMI method:
>>
>> - the first 16-bit are a bitmap of all fans affected by a fan behavior
>>    change request.
>>
>> - the next 8 bits contain four fan mode fields (2-bit), each being
>>    associated with a bit inside the fan bitmap.
>>
>> There are three fan modes: auto, turbo and custom.
>>
>> Use this newfound knowledge to fix the turbo fan handling by setting
>> the correct bits before calling SetGamingFanBehavior(). Also check
>> the result of the WMI method call and return an error should the ACPI
>> firmware signal failure.
>>
>> Signed-off-by: Armin Wolf <W_Armin@gmx.de>
>> ---
>>   drivers/platform/x86/acer-wmi.c | 75 +++++++++++++++++++++++----------
>>   1 file changed, 52 insertions(+), 23 deletions(-)
>>
>> diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
>> index 69336bd778ee..f20a882e3650 100644
>> --- a/drivers/platform/x86/acer-wmi.c
>> +++ b/drivers/platform/x86/acer-wmi.c
>> @@ -68,10 +68,19 @@ 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_FAN_BEHAVIOR_METHODID 14
>>   #define ACER_WMID_SET_GAMING_MISC_SETTING_METHODID 22
>>   #define ACER_WMID_GET_GAMING_MISC_SETTING_METHODID 23
>>
>> +#define ACER_GAMING_FAN_BEHAVIOR_ID_MASK GENMASK_ULL(15, 0)
>> +#define ACER_GAMING_FAN_BEHAVIOR_SET_MODE_MASK GENMASK_ULL(23, 16)
>> +
>> +#define ACER_GAMING_FAN_BEHAVIOR_CPU BIT(0)
>> +#define ACER_GAMING_FAN_BEHAVIOR_GPU BIT(3)
>> +
>> +#define ACER_GAMING_FAN_BEHAVIOR_CPU_MODE_MASK GENMASK(1, 0)
>> +#define ACER_GAMING_FAN_BEHAVIOR_GPU_MODE_MASK GENMASK(7, 6)
>> +
>>   #define ACER_GAMING_MISC_SETTING_STATUS_MASK GENMASK_ULL(7, 0)
>>   #define ACER_GAMING_MISC_SETTING_INDEX_MASK GENMASK_ULL(7, 0)
>>   #define ACER_GAMING_MISC_SETTING_VALUE_MASK GENMASK_ULL(15, 8)
>> @@ -121,6 +130,12 @@ enum acer_wmi_predator_v4_sensor_id {
>>   	ACER_WMID_SENSOR_GPU_TEMPERATURE	= 0x0A,
>>   };
>>
>> +enum acer_wmi_gaming_fan_mode {
>> +	ACER_WMID_FAN_MODE_AUTO		= 0x01,
>> +	ACER_WMID_FAN_MODE_TURBO	= 0x02,
>> +	ACER_WMID_FAN_MODE_CUSTOM	= 0x03,
>> +};
>> +
>>   enum acer_wmi_predator_v4_oc {
>>   	ACER_WMID_OC_NORMAL			= 0x0000,
>>   	ACER_WMID_OC_TURBO			= 0x0002,
>> @@ -1565,9 +1580,6 @@ static acpi_status WMID_gaming_set_u64(u64 value, u32 cap)
>>   	case ACER_CAP_TURBO_LED:
>>   		method_id = ACER_WMID_SET_GAMING_LED_METHODID;
>>   		break;
>> -	case ACER_CAP_TURBO_FAN:
>> -		method_id = ACER_WMID_SET_GAMING_FAN_BEHAVIOR;
>> -		break;
>>   	default:
>>   		return AE_BAD_PARAMETER;
>>   	}
>> @@ -1618,25 +1630,42 @@ static int WMID_gaming_get_sys_info(u32 command, u64 *out)
>>   	return 0;
>>   }
>>
>> +static int WMID_gaming_set_fan_behavior(u16 fan_bitmap, u8 mode_bitmap)
>> +{
>> +	acpi_status status;
>> +	u64 input = 0;
>> +	u64 result;
>> +
>> +	input |= FIELD_PREP(ACER_GAMING_FAN_BEHAVIOR_ID_MASK, fan_bitmap);
>> +	input |= FIELD_PREP(ACER_GAMING_FAN_BEHAVIOR_SET_MODE_MASK, mode_bitmap);
>> +
>> +	status = WMI_gaming_execute_u64(ACER_WMID_SET_GAMING_FAN_BEHAVIOR_METHODID, input,
>> +					&result);
>> +	if (ACPI_FAILURE(status))
>> +		return -EIO;
>> +
>> +	/* TODO: Proper error handling */
>> +	pr_notice("Fan behavior return status: %llu\n", result);
> I guess this is missing some ACER_GAMING_FAN_BEHAVIOR_STATUS_MASK
> handling right? This shouldn't mess with testing tho.

Yes, i need to wait for the hardware testers to give feedback before i can implement this.

>> +
>> +	return 0;
>> +}
>> +
>>   static void WMID_gaming_set_fan_mode(u8 fan_mode)
>>   {
>> -	/* fan_mode = 1 is used for auto, fan_mode = 2 used for turbo*/
>> -	u64 gpu_fan_config1 = 0, gpu_fan_config2 = 0;
>> -	int i;
>> -
>> -	if (quirks->cpu_fans > 0)
>> -		gpu_fan_config2 |= 1;
>> -	for (i = 0; i < (quirks->cpu_fans + quirks->gpu_fans); ++i)
>> -		gpu_fan_config2 |= 1 << (i + 1);
> I agree on with your explaination in the previous thread, so after the
> TODO is addressed:
>
> Reviewed-by: Kurt Borja <kuurtb@gmail.com>
>
> I do wonder tho, isn't there a WMI operation to get the bitmap of
> available fans? Like in the case of available thermal profiles and
> sensors.

I do not know. There are a couple of other fan-related WMI methods available but they seem
to do something else.

For now i use the hwmon interface for detecting the presence of the CPU and GPU fan. I suspect
that the second GPU fan can also be detected using the hwmon interface.

Thanks,
Armin Wolf

[RFC PATCH v2 2/3] platform/x86: acer-wmi: Add fan control support

[Armin Wolf]

Add support for controlling the fan speed using the
SetGamingFanSpeed() and GetGamingFanSpeed() WMI methods.

This feature is only enabled if the machine has ACER_CAP_PWM enabled
and depend on ACER_CAP_HWMON for detecting the number of available
fans.

Reviewed-by: Kurt Borja <kuurtb@gmail.com>
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
---
 drivers/platform/x86/acer-wmi.c | 221 +++++++++++++++++++++++++++++++-
 1 file changed, 219 insertions(+), 2 deletions(-)

diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index f20a882e3650..e5aef09d9d96 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -12,10 +12,12 @@
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

 #include <linux/kernel.h>
+#include <linux/minmax.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/dmi.h>
+#include <linux/fixp-arith.h>
 #include <linux/backlight.h>
 #include <linux/leds.h>
 #include <linux/platform_device.h>
@@ -69,11 +71,16 @@ MODULE_LICENSE("GPL");
 #define ACER_WMID_GET_GAMING_LED_METHODID 4
 #define ACER_WMID_GET_GAMING_SYS_INFO_METHODID 5
 #define ACER_WMID_SET_GAMING_FAN_BEHAVIOR_METHODID 14
+#define ACER_WMID_GET_GAMING_FAN_BEHAVIOR_METHODID 15
+#define ACER_WMID_SET_GAMING_FAN_SPEED_METHODID 16
+#define ACER_WMID_GET_GAMING_FAN_SPEED_METHODID 17
 #define ACER_WMID_SET_GAMING_MISC_SETTING_METHODID 22
 #define ACER_WMID_GET_GAMING_MISC_SETTING_METHODID 23

+#define ACER_GAMING_FAN_BEHAVIOR_STATUS_MASK GENMASK_ULL(7, 0)
 #define ACER_GAMING_FAN_BEHAVIOR_ID_MASK GENMASK_ULL(15, 0)
 #define ACER_GAMING_FAN_BEHAVIOR_SET_MODE_MASK GENMASK_ULL(23, 16)
+#define ACER_GAMING_FAN_BEHAVIOR_GET_MODE_MASK GENMASK_ULL(23, 8)

 #define ACER_GAMING_FAN_BEHAVIOR_CPU BIT(0)
 #define ACER_GAMING_FAN_BEHAVIOR_GPU BIT(3)
@@ -81,6 +88,10 @@ MODULE_LICENSE("GPL");
 #define ACER_GAMING_FAN_BEHAVIOR_CPU_MODE_MASK GENMASK(1, 0)
 #define ACER_GAMING_FAN_BEHAVIOR_GPU_MODE_MASK GENMASK(7, 6)

+#define ACER_GAMING_FAN_SPEED_STATUS_MASK GENMASK_ULL(7, 0)
+#define ACER_GAMING_FAN_SPEED_ID_MASK GENMASK_ULL(7, 0)
+#define ACER_GAMING_FAN_SPEED_VALUE_MASK GENMASK_ULL(15, 8)
+
 #define ACER_GAMING_MISC_SETTING_STATUS_MASK GENMASK_ULL(7, 0)
 #define ACER_GAMING_MISC_SETTING_INDEX_MASK GENMASK_ULL(7, 0)
 #define ACER_GAMING_MISC_SETTING_VALUE_MASK GENMASK_ULL(15, 8)
@@ -130,6 +141,11 @@ enum acer_wmi_predator_v4_sensor_id {
 	ACER_WMID_SENSOR_GPU_TEMPERATURE	= 0x0A,
 };

+enum acer_wmi_gaming_fan_id {
+	ACER_WMID_CPU_FAN	= 0x01,
+	ACER_WMID_GPU_FAN	= 0x04,
+};
+
 enum acer_wmi_gaming_fan_mode {
 	ACER_WMID_FAN_MODE_AUTO		= 0x01,
 	ACER_WMID_FAN_MODE_TURBO	= 0x02,
@@ -292,6 +308,7 @@ struct hotkey_function_type_aa {
 #define ACER_CAP_TURBO_FAN		BIT(9)
 #define ACER_CAP_PLATFORM_PROFILE	BIT(10)
 #define ACER_CAP_HWMON			BIT(11)
+#define ACER_CAP_PWM			BIT(12)

 /*
  * Interface type flags
@@ -386,6 +403,7 @@ struct quirk_entry {
 	u8 cpu_fans;
 	u8 gpu_fans;
 	u8 predator_v4;
+	u8 pwm;
 };

 static struct quirk_entry *quirks;
@@ -405,6 +423,9 @@ static void __init set_quirks(void)
 	if (quirks->predator_v4)
 		interface->capability |= ACER_CAP_PLATFORM_PROFILE |
 					 ACER_CAP_HWMON;
+
+	if (quirks->pwm)
+		interface->capability |= ACER_CAP_PWM;
 }

 static int __init dmi_matched(const struct dmi_system_id *dmi)
@@ -1650,6 +1671,27 @@ static int WMID_gaming_set_fan_behavior(u16 fan_bitmap, u8 mode_bitmap)
 	return 0;
 }

+static int WMID_gaming_get_fan_behavior(u16 fan_bitmap, u8 *mode_bitmap)
+{
+	acpi_status status;
+	u32 input = 0;
+	u64 result;
+
+	input |= FIELD_PREP(ACER_GAMING_FAN_BEHAVIOR_ID_MASK, fan_bitmap);
+	status = WMI_gaming_execute_u32_u64(ACER_WMID_GET_GAMING_FAN_BEHAVIOR_METHODID, input,
+					    &result);
+	if (ACPI_FAILURE(status))
+		return -EIO;
+
+	/* The return status must be zero for the operation to have succeeded */
+	if (FIELD_GET(ACER_GAMING_FAN_BEHAVIOR_STATUS_MASK, result))
+		return -EIO;
+
+	*mode_bitmap = FIELD_GET(ACER_GAMING_FAN_BEHAVIOR_GET_MODE_MASK, result);
+
+	return 0;
+}
+
 static void WMID_gaming_set_fan_mode(u8 fan_mode)
 {
 	u16 mode_bitmap = 0;
@@ -1668,6 +1710,55 @@ static void WMID_gaming_set_fan_mode(u8 fan_mode)
 	WMID_gaming_set_fan_behavior(fan_bitmap, mode_bitmap);
 }

+static int WMID_gaming_set_gaming_fan_speed(u8 fan, u8 speed)
+{
+	acpi_status status;
+	u64 input = 0;
+	u64 result;
+
+	if (speed > 100)
+		return -EINVAL;
+
+	input |= FIELD_PREP(ACER_GAMING_FAN_SPEED_ID_MASK, fan);
+	input |= FIELD_PREP(ACER_GAMING_FAN_SPEED_VALUE_MASK, speed);
+
+	status = WMI_gaming_execute_u64(ACER_WMID_SET_GAMING_FAN_SPEED_METHODID, input, &result);
+	if (ACPI_FAILURE(status))
+		return -EIO;
+
+	switch (FIELD_GET(ACER_GAMING_FAN_SPEED_STATUS_MASK, result)) {
+	case 0x00:
+		return 0;
+	case 0x01:
+		return -ENODEV;
+	case 0x02:
+		return -EINVAL;
+	default:
+		return -ENXIO;
+	}
+}
+
+static int WMID_gaming_get_gaming_fan_speed(u8 fan, u8 *speed)
+{
+	acpi_status status;
+	u32 input = 0;
+	u64 result;
+
+	input |= FIELD_PREP(ACER_GAMING_FAN_SPEED_ID_MASK, fan);
+
+	status = WMI_gaming_execute_u32_u64(ACER_WMID_GET_GAMING_FAN_SPEED_METHODID, input,
+					    &result);
+	if (ACPI_FAILURE(status))
+		return -EIO;
+
+	if (FIELD_GET(ACER_GAMING_FAN_SPEED_STATUS_MASK, result))
+		return -ENODEV;
+
+	*speed = FIELD_GET(ACER_GAMING_FAN_SPEED_VALUE_MASK, result);
+
+	return 0;
+}
+
 static int WMID_gaming_set_misc_setting(enum acer_wmi_gaming_misc_setting setting, u8 value)
 {
 	acpi_status status;
@@ -2839,6 +2930,16 @@ static const enum acer_wmi_predator_v4_sensor_id acer_wmi_fan_channel_to_sensor_
 	[1] = ACER_WMID_SENSOR_GPU_FAN_SPEED,
 };

+static const enum acer_wmi_gaming_fan_id acer_wmi_fan_channel_to_fan_id[] = {
+	[0] = ACER_WMID_CPU_FAN,
+	[1] = ACER_WMID_GPU_FAN,
+};
+
+static const u16 acer_wmi_fan_channel_to_fan_bitmap[] = {
+	[0] = ACER_GAMING_FAN_BEHAVIOR_CPU,
+	[1] = ACER_GAMING_FAN_BEHAVIOR_GPU,
+};
+
 static umode_t acer_wmi_hwmon_is_visible(const void *data,
 					 enum hwmon_sensor_types type, u32 attr,
 					 int channel)
@@ -2850,6 +2951,11 @@ static umode_t acer_wmi_hwmon_is_visible(const void *data,
 	case hwmon_temp:
 		sensor_id = acer_wmi_temp_channel_to_sensor_id[channel];
 		break;
+	case hwmon_pwm:
+		if (!has_cap(ACER_CAP_PWM))
+			return 0;
+
+		fallthrough;
 	case hwmon_fan:
 		sensor_id = acer_wmi_fan_channel_to_sensor_id[channel];
 		break;
@@ -2857,8 +2963,12 @@ static umode_t acer_wmi_hwmon_is_visible(const void *data,
 		return 0;
 	}

-	if (*supported_sensors & BIT(sensor_id - 1))
+	if (*supported_sensors & BIT(sensor_id - 1)) {
+		if (type == hwmon_pwm)
+			return 0644;
+
 		return 0444;
+	}

 	return 0;
 }
@@ -2867,8 +2977,10 @@ static int acer_wmi_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
 			       u32 attr, int channel, long *val)
 {
 	u64 command = ACER_WMID_CMD_GET_PREDATOR_V4_SENSOR_READING;
+	u8 fan, speed, mode_bitmap;
+	u16 fan_bitmap;
+	int mode, ret;
 	u64 result;
-	int ret;

 	switch (type) {
 	case hwmon_temp:
@@ -2892,6 +3004,106 @@ static int acer_wmi_hwmon_read(struct device *dev, enum hwmon_sensor_types type,

 		*val = FIELD_GET(ACER_PREDATOR_V4_SENSOR_READING_BIT_MASK, result);
 		return 0;
+	case hwmon_pwm:
+		switch (attr) {
+		case hwmon_pwm_input:
+			fan = acer_wmi_fan_channel_to_fan_id[channel];
+			ret = WMID_gaming_get_gaming_fan_speed(fan, &speed);
+			if (ret < 0)
+				return ret;
+
+			*val = fixp_linear_interpolate(0, 0, 100, U8_MAX, speed);
+			return 0;
+		case hwmon_pwm_enable:
+			fan_bitmap = acer_wmi_fan_channel_to_fan_bitmap[channel];
+			ret = WMID_gaming_get_fan_behavior(fan_bitmap, &mode_bitmap);
+			if (ret < 0)
+				return ret;
+
+			switch (channel) {
+			case 0:
+				mode = FIELD_GET(ACER_GAMING_FAN_BEHAVIOR_CPU_MODE_MASK,
+						 mode_bitmap);
+				break;
+			case 1:
+				mode = FIELD_GET(ACER_GAMING_FAN_BEHAVIOR_GPU_MODE_MASK,
+						 mode_bitmap);
+				break;
+			default:
+				return -EINVAL;
+			}
+
+			switch (mode) {
+			case ACER_WMID_FAN_MODE_AUTO:
+				*val = 2;
+				return 0;
+			case ACER_WMID_FAN_MODE_TURBO:
+				*val = 0;
+				return 0;
+			case ACER_WMID_FAN_MODE_CUSTOM:
+				*val = 1;
+				return 0;
+			default:
+				return -ENXIO;
+			}
+		default:
+			return -EOPNOTSUPP;
+		}
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
+static int acer_wmi_hwmon_write(struct device *dev, enum hwmon_sensor_types type,
+				u32 attr, int channel, long val)
+{
+	u8 fan, speed, mode_bitmap;
+	u16 fan_bitmap;
+	int mode;
+
+	switch (type) {
+	case hwmon_pwm:
+		switch (attr) {
+		case hwmon_pwm_input:
+			fan = acer_wmi_fan_channel_to_fan_id[channel];
+			speed = fixp_linear_interpolate(0, 0, U8_MAX, 100,
+							clamp_val(val, 0, U8_MAX));
+
+			return WMID_gaming_set_gaming_fan_speed(fan, speed);
+		case hwmon_pwm_enable:
+			fan_bitmap = acer_wmi_fan_channel_to_fan_bitmap[channel];
+
+			switch (val) {
+			case 0:
+				mode = ACER_WMID_FAN_MODE_TURBO;
+				break;
+			case 1:
+				mode = ACER_WMID_FAN_MODE_CUSTOM;
+				break;
+			case 2:
+				mode = ACER_WMID_FAN_MODE_AUTO;
+				break;
+			default:
+				return -EINVAL;
+			}
+
+			switch (channel) {
+			case 0:
+				mode_bitmap = FIELD_PREP(ACER_GAMING_FAN_BEHAVIOR_CPU_MODE_MASK,
+							 mode);
+				break;
+			case 1:
+				mode_bitmap = FIELD_PREP(ACER_GAMING_FAN_BEHAVIOR_GPU_MODE_MASK,
+							 mode);
+				break;
+			default:
+				return -EINVAL;
+			}
+
+			return WMID_gaming_set_fan_behavior(fan_bitmap, mode_bitmap);
+		default:
+			return -EOPNOTSUPP;
+		}
 	default:
 		return -EOPNOTSUPP;
 	}
@@ -2907,11 +3119,16 @@ static const struct hwmon_channel_info *const acer_wmi_hwmon_info[] = {
 			   HWMON_F_INPUT,
 			   HWMON_F_INPUT
 			   ),
+	HWMON_CHANNEL_INFO(pwm,
+			   HWMON_PWM_INPUT | HWMON_PWM_ENABLE,
+			   HWMON_PWM_INPUT | HWMON_PWM_ENABLE
+			   ),
 	NULL
 };

 static const struct hwmon_ops acer_wmi_hwmon_ops = {
 	.read = acer_wmi_hwmon_read,
+	.write = acer_wmi_hwmon_write,
 	.is_visible = acer_wmi_hwmon_is_visible,
 };

--
2.39.5

[RFC PATCH v2 3/3] platform/x86: acer-wmi: Enable fan control for PH16-72 and PT14-51

[Armin Wolf]

Both machines support the necessary WMI methods, so enable fan control
for them.

Signed-off-by: Armin Wolf <W_Armin@gmx.de>
---
 drivers/platform/x86/acer-wmi.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index e5aef09d9d96..399b2b2f1554 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -465,6 +465,7 @@ static struct quirk_entry quirk_acer_predator_ph16_72 = {
 	.cpu_fans = 1,
 	.gpu_fans = 1,
 	.predator_v4 = 1,
+	.pwm = 1,
 };

 static struct quirk_entry quirk_acer_predator_pt14_51 = {
@@ -472,6 +473,7 @@ static struct quirk_entry quirk_acer_predator_pt14_51 = {
 	.cpu_fans = 1,
 	.gpu_fans = 1,
 	.predator_v4 = 1,
+	.pwm = 1,
 };

 static struct quirk_entry quirk_acer_predator_v4 = {
--
2.39.5

Re: [RFC PATCH v2 0/3] platform/x86: acer-wmi: Add fan control support

[Armin Wolf]

Am 15.02.25 um 18:45 schrieb Armin Wolf:

> This experimental patch series aims to add fan control support to the
> acer-wmi driver. The patches are compile-tested only and need to be
> tested on real hardware to verify that they actually work.
>
> I CCed two users who requested support for this feature. I would be
> very happy if both of you could test those patches and report back.
>
> I am ready to help you both with compiling a custom linux kernel for
> testing this series.

Any updates from the two people with Acer hardware?

Thanks,
Armin Wolf

> Changes since v2:
> - remove duplicate include and replace hwmon_pwm_mode with
>    hwmon_pwm_enable in second patch
>
> Armin Wolf (3):
>    platform/x86: acer-wmi: Fix setting of fan behavior
>    platform/x86: acer-wmi: Add fan control support
>    platform/x86: acer-wmi: Enable fan control for PH16-72 and PT14-51
>
>   drivers/platform/x86/acer-wmi.c | 298 +++++++++++++++++++++++++++++---
>   1 file changed, 273 insertions(+), 25 deletions(-)
>
> --
> 2.39.5
>
>

Re: [RFC PATCH v2 0/3] platform/x86: acer-wmi: Add fan control support

[Rayan Margham]

I’m so sorry I’ve been in a mental health unit for the past month, are you still working on the driver I would love to test anything you provide me now

Bestest regards
Rayan Margham 

> On 5 Mar 2025, at 00:24, Armin Wolf <W_Armin@gmx.de> wrote:
> 
> Am 15.02.25 um 18:45 schrieb Armin Wolf:
> 
>> This experimental patch series aims to add fan control support to the
>> acer-wmi driver. The patches are compile-tested only and need to be
>> tested on real hardware to verify that they actually work.
>> 
>> I CCed two users who requested support for this feature. I would be
>> very happy if both of you could test those patches and report back.
>> 
>> I am ready to help you both with compiling a custom linux kernel for
>> testing this series.
> 
> Any updates from the two people with Acer hardware?
> 
> Thanks,
> Armin Wolf
> 
>> Changes since v2:
>> - remove duplicate include and replace hwmon_pwm_mode with
>>   hwmon_pwm_enable in second patch
>> 
>> Armin Wolf (3):
>>   platform/x86: acer-wmi: Fix setting of fan behavior
>>   platform/x86: acer-wmi: Add fan control support
>>   platform/x86: acer-wmi: Enable fan control for PH16-72 and PT14-51
>> 
>>  drivers/platform/x86/acer-wmi.c | 298 +++++++++++++++++++++++++++++---
>>  1 file changed, 273 insertions(+), 25 deletions(-)
>> 
>> --
>> 2.39.5
>> 
>> 

Re: [RFC PATCH v2 0/3] platform/x86: acer-wmi: Add fan control support

[Armin Wolf]

Am 09.03.25 um 13:51 schrieb Rayan Margham:

> I’m so sorry I’ve been in a mental health unit for the past month, are you still working on the driver I would love to test anything you provide me now
>
> Bestest regards
> Rayan Margham

Oh my, i wish you all the best for recovery.

Can you compile the current -rc kernel with this patch series applied? If no then i can give you a .deb package containing the kernel and the
modified acer-wmi driver.

Thanks,
Armin Wolf

>> On 5 Mar 2025, at 00:24, Armin Wolf <W_Armin@gmx.de> wrote:
>>
>> Am 15.02.25 um 18:45 schrieb Armin Wolf:
>>
>>> This experimental patch series aims to add fan control support to the
>>> acer-wmi driver. The patches are compile-tested only and need to be
>>> tested on real hardware to verify that they actually work.
>>>
>>> I CCed two users who requested support for this feature. I would be
>>> very happy if both of you could test those patches and report back.
>>>
>>> I am ready to help you both with compiling a custom linux kernel for
>>> testing this series.
>> Any updates from the two people with Acer hardware?
>>
>> Thanks,
>> Armin Wolf
>>
>>> Changes since v2:
>>> - remove duplicate include and replace hwmon_pwm_mode with
>>>    hwmon_pwm_enable in second patch
>>>
>>> Armin Wolf (3):
>>>    platform/x86: acer-wmi: Fix setting of fan behavior
>>>    platform/x86: acer-wmi: Add fan control support
>>>    platform/x86: acer-wmi: Enable fan control for PH16-72 and PT14-51
>>>
>>>   drivers/platform/x86/acer-wmi.c | 298 +++++++++++++++++++++++++++++---
>>>   1 file changed, 273 insertions(+), 25 deletions(-)
>>>
>>> --
>>> 2.39.5
>>>
>>>

Re: [RFC PATCH v2 0/3] platform/x86: acer-wmi: Add fan control support

[Rayan Margham]

Could i have the deb package, I can try to install it.

On Tue, Mar 11, 2025 at 9:53 PM Armin Wolf <W_Armin@gmx.de> wrote:
>
> Am 09.03.25 um 13:51 schrieb Rayan Margham:
>
> > I’m so sorry I’ve been in a mental health unit for the past month, are you still working on the driver I would love to test anything you provide me now
> >
> > Bestest regards
> > Rayan Margham
>
> Oh my, i wish you all the best for recovery.
>
> Can you compile the current -rc kernel with this patch series applied? If no then i can give you a .deb package containing the kernel and the
> modified acer-wmi driver.
>
> Thanks,
> Armin Wolf
>
> >> On 5 Mar 2025, at 00:24, Armin Wolf <W_Armin@gmx.de> wrote:
> >>
> >> Am 15.02.25 um 18:45 schrieb Armin Wolf:
> >>
> >>> This experimental patch series aims to add fan control support to the
> >>> acer-wmi driver. The patches are compile-tested only and need to be
> >>> tested on real hardware to verify that they actually work.
> >>>
> >>> I CCed two users who requested support for this feature. I would be
> >>> very happy if both of you could test those patches and report back.
> >>>
> >>> I am ready to help you both with compiling a custom linux kernel for
> >>> testing this series.
> >> Any updates from the two people with Acer hardware?
> >>
> >> Thanks,
> >> Armin Wolf
> >>
> >>> Changes since v2:
> >>> - remove duplicate include and replace hwmon_pwm_mode with
> >>>    hwmon_pwm_enable in second patch
> >>>
> >>> Armin Wolf (3):
> >>>    platform/x86: acer-wmi: Fix setting of fan behavior
> >>>    platform/x86: acer-wmi: Add fan control support
> >>>    platform/x86: acer-wmi: Enable fan control for PH16-72 and PT14-51
> >>>
> >>>   drivers/platform/x86/acer-wmi.c | 298 +++++++++++++++++++++++++++++---
> >>>   1 file changed, 273 insertions(+), 25 deletions(-)
> >>>
> >>> --
> >>> 2.39.5
> >>>
> >>>

Re: [RFC PATCH v2 0/3] platform/x86: acer-wmi: Add fan control support

[Armin Wolf]

Am 13.03.25 um 19:21 schrieb Rayan Margham:

> Could i have the deb package, I can try to install it.

Alright, the .deb files for both the kernel image and the kernel headers are available here:

	https://nextcloud.thetwins.xyz/s/oatc9DaW5XtiP9E

Thanks,
Armin Wolf

> On Tue, Mar 11, 2025 at 9:53 PM Armin Wolf <W_Armin@gmx.de> wrote:
>> Am 09.03.25 um 13:51 schrieb Rayan Margham:
>>
>>> I’m so sorry I’ve been in a mental health unit for the past month, are you still working on the driver I would love to test anything you provide me now
>>>
>>> Bestest regards
>>> Rayan Margham
>> Oh my, i wish you all the best for recovery.
>>
>> Can you compile the current -rc kernel with this patch series applied? If no then i can give you a .deb package containing the kernel and the
>> modified acer-wmi driver.
>>
>> Thanks,
>> Armin Wolf
>>
>>>> On 5 Mar 2025, at 00:24, Armin Wolf <W_Armin@gmx.de> wrote:
>>>>
>>>> Am 15.02.25 um 18:45 schrieb Armin Wolf:
>>>>
>>>>> This experimental patch series aims to add fan control support to the
>>>>> acer-wmi driver. The patches are compile-tested only and need to be
>>>>> tested on real hardware to verify that they actually work.
>>>>>
>>>>> I CCed two users who requested support for this feature. I would be
>>>>> very happy if both of you could test those patches and report back.
>>>>>
>>>>> I am ready to help you both with compiling a custom linux kernel for
>>>>> testing this series.
>>>> Any updates from the two people with Acer hardware?
>>>>
>>>> Thanks,
>>>> Armin Wolf
>>>>
>>>>> Changes since v2:
>>>>> - remove duplicate include and replace hwmon_pwm_mode with
>>>>>     hwmon_pwm_enable in second patch
>>>>>
>>>>> Armin Wolf (3):
>>>>>     platform/x86: acer-wmi: Fix setting of fan behavior
>>>>>     platform/x86: acer-wmi: Add fan control support
>>>>>     platform/x86: acer-wmi: Enable fan control for PH16-72 and PT14-51
>>>>>
>>>>>    drivers/platform/x86/acer-wmi.c | 298 +++++++++++++++++++++++++++++---
>>>>>    1 file changed, 273 insertions(+), 25 deletions(-)
>>>>>
>>>>> --
>>>>> 2.39.5
>>>>>
>>>>>

Re: [RFC PATCH v2 0/3] platform/x86: acer-wmi: Add fan control support

[Fa-Iz Faadhillah Ibrahim]

> > This experimental patch series aims to add fan control support to the > acer-wmi driver. The patches are compile-tested only and need to be 
> > tested on real hardware to verify that they actually work. > > I 
> CCed two users who requested support for this feature. I would be > 
> very happy if both of you could test those patches and report back. > 
> > I am ready to help you both with compiling a custom linux kernel for 
> > testing this series.
> Any updates from the two people with Acer hardware?
>
> Thanks,
> Armin Wolf

Hello, I've tried your patch on my Predator Helios Neo 16 (PHN16-72)
using quirks from PH16-72 and it looks like fan control works just fine.
On other note, can you please add PHN16-72 to the quirk table?
if you need anything to test please do notify.

Thanks,
Fa-Iz Faadhillah Ibrahim

>
> > Changes since v2: > - remove duplicate include and replace hwmon_pwm_mode with > 
> hwmon_pwm_enable in second patch > > Armin Wolf (3): > platform/x86: 
> acer-wmi: Fix setting of fan behavior > platform/x86: acer-wmi: Add 
> fan control support > platform/x86: acer-wmi: Enable fan control for 
> PH16-72 and PT14-51 > > drivers/platform/x86/acer-wmi.c | 298 
> +++++++++++++++++++++++++++++--- > 1 file changed, 273 insertions(+), 
> 25 deletions(-) > > -- > 2.39.5 > >
> ------------------------------------------------------------------------

Re: [RFC PATCH v2 0/3] platform/x86: acer-wmi: Add fan control support

[Armin Wolf]

Am 15.08.25 um 08:17 schrieb Fa-Iz Faadhillah Ibrahim:

>> > This experimental patch series aims to add fan control support to 
>> the > acer-wmi driver. The patches are compile-tested only and need 
>> to be > tested on real hardware to verify that they actually work. > 
>> > I CCed two users who requested support for this feature. I would be 
>> > very happy if both of you could test those patches and report back. 
>> > > I am ready to help you both with compiling a custom linux kernel 
>> for > testing this series.
>> Any updates from the two people with Acer hardware?
>>
>> Thanks,
>> Armin Wolf
>
> Hello, I've tried your patch on my Predator Helios Neo 16 (PHN16-72)
> using quirks from PH16-72 and it looks like fan control works just fine.
> On other note, can you please add PHN16-72 to the quirk table?
> if you need anything to test please do notify.
>
> Thanks,
> Fa-Iz Faadhillah Ibrahim
>
Hi,

sorry for taking a bit long to respond, i am currently on vacation. Nice to know that the experimental patches work :).
Can you send me the output of "acpidump" on your machine?

Thanks,
Armin Wolf

>>
>> > Changes since v2: > - remove duplicate include and replace 
>> hwmon_pwm_mode with > hwmon_pwm_enable in second patch > > Armin Wolf 
>> (3): > platform/x86: acer-wmi: Fix setting of fan behavior > 
>> platform/x86: acer-wmi: Add fan control support > platform/x86: 
>> acer-wmi: Enable fan control for PH16-72 and PT14-51 > > 
>> drivers/platform/x86/acer-wmi.c | 298 
>> +++++++++++++++++++++++++++++--- > 1 file changed, 273 insertions(+), 
>> 25 deletions(-) > > -- > 2.39.5 > >
>> ------------------------------------------------------------------------
>
>

Re: [RFC PATCH v2 0/3] platform/x86: acer-wmi: Add fan control support

[Armin Wolf]

Am 23.08.25 um 03:27 schrieb Fa-Iz Faadhillah Ibrahim:

>
> On 8/22/25 7:02 PM, Armin Wolf wrote:
>> Am 15.08.25 um 08:17 schrieb Fa-Iz Faadhillah Ibrahim:
>>
>>>> > This experimental patch series aims to add fan control support to 
>>>> the > acer-wmi driver. The patches are compile-tested only and need 
>>>> to be > tested on real hardware to verify that they actually work. 
>>>> > > I CCed two users who requested support for this feature. I 
>>>> would be > very happy if both of you could test those patches and 
>>>> report back. > > I am ready to help you both with compiling a 
>>>> custom linux kernel for > testing this series.
>>>> Any updates from the two people with Acer hardware?
>>>>
>>>> Thanks,
>>>> Armin Wolf
>>>
>>> Hello, I've tried your patch on my Predator Helios Neo 16 (PHN16-72)
>>> using quirks from PH16-72 and it looks like fan control works just 
>>> fine.
>>> On other note, can you please add PHN16-72 to the quirk table?
>>> if you need anything to test please do notify.
>>>
>>> Thanks,
>>> Fa-Iz Faadhillah Ibrahim
>>>
>> Hi,
>>
>> sorry for taking a bit long to respond, i am currently on vacation. 
>> Nice to know that the experimental patches work :).
>> Can you send me the output of "acpidump" on your machine?
> Hello,
>
> Sorry for disturbing your vacation, hope you're having a great time :).
> Output of "acpidump" attached below.
>
> P.S. Sorry for the messed up formatting before, first time here so I'm 
> still learning how this works, hopefully it'll be okay now.
>
> Thanks,
> Fa-Iz Faadhillah Ibrahim

Thanks.

Would it be OK for you if i send the non-RFC patches once i am back home (around 15.09.)? The reason for this
is that i made some improvements to the RFC patches, but those improved patches are only stored on my develop
machine at home.

Thanks,
Armin Wolf

>>
>> Thanks,
>> Armin Wolf
>>
>>>>
>>>> > Changes since v2: > - remove duplicate include and replace 
>>>> hwmon_pwm_mode with > hwmon_pwm_enable in second patch > > Armin 
>>>> Wolf (3): > platform/x86: acer-wmi: Fix setting of fan behavior > 
>>>> platform/x86: acer-wmi: Add fan control support > platform/x86: 
>>>> acer-wmi: Enable fan control for PH16-72 and PT14-51 > > 
>>>> drivers/platform/x86/acer-wmi.c | 298 
>>>> +++++++++++++++++++++++++++++--- > 1 file changed, 273 
>>>> insertions(+), 25 deletions(-) > > -- > 2.39.5 > >
>>>> ------------------------------------------------------------------------ 
>>>>
>>>
>>>

Re: [RFC PATCH v2 0/3] platform/x86: acer-wmi: Add fan control support

[Fa-Iz Faadhillah Ibrahim]

On Monday, September 1, 2025 2:33:53 AM Western Indonesia Time Armin Wolf 
wrote:
> Am 23.08.25 um 03:27 schrieb Fa-Iz Faadhillah Ibrahim:
> > On 8/22/25 7:02 PM, Armin Wolf wrote:
> >> Am 15.08.25 um 08:17 schrieb Fa-Iz Faadhillah Ibrahim:
> >>>> > This experimental patch series aims to add fan control support to
> >>>> 
> >>>> the > acer-wmi driver. The patches are compile-tested only and need
> >>>> to be > tested on real hardware to verify that they actually work.
> >>>> 
> >>>> > > I CCed two users who requested support for this feature. I
> >>>> 
> >>>> would be > very happy if both of you could test those patches and
> >>>> report back. > > I am ready to help you both with compiling a
> >>>> custom linux kernel for > testing this series.
> >>>> Any updates from the two people with Acer hardware?
> >>>> 
> >>>> Thanks,
> >>>> Armin Wolf
> >>> 
> >>> Hello, I've tried your patch on my Predator Helios Neo 16 (PHN16-72)
> >>> using quirks from PH16-72 and it looks like fan control works just
> >>> fine.
> >>> On other note, can you please add PHN16-72 to the quirk table?
> >>> if you need anything to test please do notify.
> >>> 
> >>> Thanks,
> >>> Fa-Iz Faadhillah Ibrahim
> >> 
> >> Hi,
> >> 
> >> sorry for taking a bit long to respond, i am currently on vacation.
> >> Nice to know that the experimental patches work :).
> >> Can you send me the output of "acpidump" on your machine?
> > 
> > Hello,
> > 
> > Sorry for disturbing your vacation, hope you're having a great time :).
> > Output of "acpidump" attached below.
> > 
> > P.S. Sorry for the messed up formatting before, first time here so I'm
> > still learning how this works, hopefully it'll be okay now.
> > 
> > Thanks,
> > Fa-Iz Faadhillah Ibrahim
> 
> Thanks.
> 
> Would it be OK for you if i send the non-RFC patches once i am back home
> (around 15.09.)? The reason for this is that i made some improvements to
> the RFC patches, but those improved patches are only stored on my develop
> machine at home.
Of course, I'll try it once you send the patches.
I'm wondering, where should I send a feature request and a bug report? it 
would be nice to have the battery limit function upstreamed, and I discovered 
some bugs here and there as well. 

Thanks,
Fa-Iz Faadhillah Ibrahim
> 
> Thanks,
> Armin Wolf
> 
> >> Thanks,
> >> Armin Wolf
> >> 
> >>>> > Changes since v2: > - remove duplicate include and replace
> >>>> 
> >>>> hwmon_pwm_mode with > hwmon_pwm_enable in second patch > > Armin
> >>>> Wolf (3): > platform/x86: acer-wmi: Fix setting of fan behavior >
> >>>> platform/x86: acer-wmi: Add fan control support > platform/x86:
> >>>> acer-wmi: Enable fan control for PH16-72 and PT14-51 > >
> >>>> drivers/platform/x86/acer-wmi.c | 298
> >>>> +++++++++++++++++++++++++++++--- > 1 file changed, 273
> >>>> insertions(+), 25 deletions(-) > > -- > 2.39.5 > >
> >>>> -----------------------------------------------------------------------
> >>>> -