Re: [PATCH 1/1] platform/x86: asus-wmi: Add lite thermal policy support

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Hi,

On 7/31/24 1:54 PM, Mohamed Ghanmi wrote:
> Hi, 
> 
> On Wed, Jul 31, 2024 at 09:35:07PM +1000, Joshua Leivenzon wrote:
>> Some ASUS laptops, such as the Zenbook Duo 2024 (UX8406), use a different WMI
>> device ID to set the thermal policy.
>>
>> These devices tend to lack support for custom fan curve management, hence the
>> "lite" designation.
>>
>> Signed-off-by: Joshua Leivenzon <hacker1024@xxxxxxxxxxxxxxxxxxxxx>
>> ---
>>  drivers/platform/x86/asus-wmi.c            | 102 +++++++++++++++------
>>  include/linux/platform_data/x86/asus-wmi.h |   1 +
>>  2 files changed, 76 insertions(+), 27 deletions(-)
>>
>> diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
>> index cc735931f97b..a89cbc063a3f 100644
>> --- a/drivers/platform/x86/asus-wmi.c
>> +++ b/drivers/platform/x86/asus-wmi.c
>> @@ -93,9 +93,13 @@ module_param(fnlock_default, bool, 0444);
>>  #define ASUS_FAN_BOOST_MODE_SILENT_MASK		0x02
>>  #define ASUS_FAN_BOOST_MODES_MASK		0x03
>>  
>> +#define ASUS_THROTTLE_THERMAL_POLICY_COUNT 3
>>  #define ASUS_THROTTLE_THERMAL_POLICY_DEFAULT	0
>>  #define ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST	1
>>  #define ASUS_THROTTLE_THERMAL_POLICY_SILENT	2
>> +#define ASUS_THROTTLE_THERMAL_POLICY_LITE_DEFAULT 0
>> +#define ASUS_THROTTLE_THERMAL_POLICY_LITE_OVERBOOST 2
>> +#define ASUS_THROTTLE_THERMAL_POLICY_LITE_SILENT 1
>>  
>>  #define USB_INTEL_XUSB2PR		0xD0
>>  #define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI	0x9c31
>> @@ -287,6 +291,7 @@ struct asus_wmi {
>>  	bool kbd_rgb_state_available;
>>  
>>  	bool throttle_thermal_policy_available;
>> +	bool throttle_thermal_policy_lite;
>>  	u8 throttle_thermal_policy_mode;
>>  
>>  	bool cpu_fan_curve_available;
>> @@ -3639,6 +3644,14 @@ static int throttle_thermal_policy_check_present(struct asus_wmi *asus)
>>  	err = asus_wmi_get_devstate(asus,
>>  				    ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY,
>>  				    &result);
>> +	if (err == -ENODEV) {
>> +		err = asus_wmi_get_devstate(asus,
>> +						ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY_LITE,
>> +						&result);
>> +		asus->throttle_thermal_policy_lite = true;
>> +	} else {
>> +		asus->throttle_thermal_policy_lite = false;
>> +	}
>>  	if (err) {
>>  		if (err == -ENODEV)
>>  			return 0;
>> @@ -3659,7 +3672,10 @@ static int throttle_thermal_policy_write(struct asus_wmi *asus)
>>  
>>  	value = asus->throttle_thermal_policy_mode;
>>  
>> -	err = asus_wmi_set_devstate(ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY,
>> +	err = asus_wmi_set_devstate(
>> +					asus->throttle_thermal_policy_lite
>> +						? ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY_LITE
>> +						: ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY,
>>  				    value, &retval);
>>  
>>  	sysfs_notify(&asus->platform_device->dev.kobj, NULL,
>> @@ -3701,7 +3717,7 @@ static int throttle_thermal_policy_switch_next(struct asus_wmi *asus)
>>  	u8 new_mode = asus->throttle_thermal_policy_mode + 1;
>>  	int err;
>>  
>> -	if (new_mode > ASUS_THROTTLE_THERMAL_POLICY_SILENT)
>> +	if (new_mode > ASUS_THROTTLE_THERMAL_POLICY_COUNT - 1)
>>  		new_mode = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT;
>>  
>>  	asus->throttle_thermal_policy_mode = new_mode;
>> @@ -3740,7 +3756,7 @@ static ssize_t throttle_thermal_policy_store(struct device *dev,
>>  	if (result < 0)
>>  		return result;
>>  
>> -	if (new_mode > ASUS_THROTTLE_THERMAL_POLICY_SILENT)
>> +	if (new_mode > ASUS_THROTTLE_THERMAL_POLICY_COUNT - 1)
>>  		return -EINVAL;
>>  
>>  	asus->throttle_thermal_policy_mode = new_mode;
>> @@ -3771,18 +3787,34 @@ static int asus_wmi_platform_profile_get(struct platform_profile_handler *pprof,
>>  
>>  	tp = asus->throttle_thermal_policy_mode;
>>  
>> -	switch (tp) {
>> -	case ASUS_THROTTLE_THERMAL_POLICY_DEFAULT:
>> -		*profile = PLATFORM_PROFILE_BALANCED;
>> -		break;
>> -	case ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST:
>> -		*profile = PLATFORM_PROFILE_PERFORMANCE;
>> -		break;
>> -	case ASUS_THROTTLE_THERMAL_POLICY_SILENT:
>> -		*profile = PLATFORM_PROFILE_QUIET;
>> -		break;
>> -	default:
>> -		return -EINVAL;
>> +	if (!asus->throttle_thermal_policy_lite) {
>> +		switch (tp) {
>> +		case ASUS_THROTTLE_THERMAL_POLICY_DEFAULT:
>> +			*profile = PLATFORM_PROFILE_BALANCED;
>> +			break;
>> +		case ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST:
>> +			*profile = PLATFORM_PROFILE_PERFORMANCE;
>> +			break;
>> +		case ASUS_THROTTLE_THERMAL_POLICY_SILENT:
>> +			*profile = PLATFORM_PROFILE_QUIET;
>> +			break;
>> +		default:
>> +			return -EINVAL;
>> +		}
>> +	} else {
>> +		switch (tp) {
>> +		case ASUS_THROTTLE_THERMAL_POLICY_LITE_DEFAULT:
>> +			*profile = PLATFORM_PROFILE_BALANCED;
>> +			break;
>> +		case ASUS_THROTTLE_THERMAL_POLICY_LITE_OVERBOOST:
>> +			*profile = PLATFORM_PROFILE_PERFORMANCE;
>> +			break;
>> +		case ASUS_THROTTLE_THERMAL_POLICY_LITE_SILENT:
>> +			*profile = PLATFORM_PROFILE_QUIET;
>> +			break;
>> +		default:
>> +			return -EINVAL;
>> +		}
>>  	}
>>  
>>  	return 0;
>> @@ -3796,18 +3828,34 @@ static int asus_wmi_platform_profile_set(struct platform_profile_handler *pprof,
>>  
>>  	asus = container_of(pprof, struct asus_wmi, platform_profile_handler);
>>  
>> -	switch (profile) {
>> -	case PLATFORM_PROFILE_PERFORMANCE:
>> -		tp = ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST;
>> -		break;
>> -	case PLATFORM_PROFILE_BALANCED:
>> -		tp = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT;
>> -		break;
>> -	case PLATFORM_PROFILE_QUIET:
>> -		tp = ASUS_THROTTLE_THERMAL_POLICY_SILENT;
>> -		break;
>> -	default:
>> -		return -EOPNOTSUPP;
>> +	if (!asus->throttle_thermal_policy_lite) {
>> +		switch (profile) {
>> +		case PLATFORM_PROFILE_PERFORMANCE:
>> +			tp = ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST;
>> +			break;
>> +		case PLATFORM_PROFILE_BALANCED:
>> +			tp = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT;
>> +			break;
>> +		case PLATFORM_PROFILE_QUIET:
>> +			tp = ASUS_THROTTLE_THERMAL_POLICY_SILENT;
>> +			break;
>> +		default:
>> +			return -EOPNOTSUPP;
>> +		}
>> +	} else {
>> +		switch (profile) {
>> +		case PLATFORM_PROFILE_PERFORMANCE:
>> +			tp = ASUS_THROTTLE_THERMAL_POLICY_LITE_OVERBOOST;
>> +			break;
>> +		case PLATFORM_PROFILE_BALANCED:
>> +			tp = ASUS_THROTTLE_THERMAL_POLICY_LITE_DEFAULT;
>> +			break;
>> +		case PLATFORM_PROFILE_QUIET:
>> +			tp = ASUS_THROTTLE_THERMAL_POLICY_LITE_SILENT;
>> +			break;
>> +		default:
>> +			return -EOPNOTSUPP;
>> +		}
>>  	}
>>  
>>  	asus->throttle_thermal_policy_mode = tp;
>> diff --git a/include/linux/platform_data/x86/asus-wmi.h b/include/linux/platform_data/x86/asus-wmi.h
>> index 0aeeae1c1943..f37e34ea36a5 100644
>> --- a/include/linux/platform_data/x86/asus-wmi.h
>> +++ b/include/linux/platform_data/x86/asus-wmi.h
>> @@ -68,6 +68,7 @@
>>  #define ASUS_WMI_DEVID_SCREENPAD_LIGHT	0x00050032
>>  #define ASUS_WMI_DEVID_FAN_BOOST_MODE	0x00110018
>>  #define ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY 0x00120075
>> +#define ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY_LITE 0x00110019
> 
> A patch already exists that fixes this issue but still not upstream
> It adds support for modern vivobook laptops and some newer zenbooks
> and uses platform profiles
> 
> https://lore.kernel.org/platform-driver-x86/20240609144849.2532-2-mohamed.ghanmi@xxxxxxxxx/

And I have just merged that patch and pushed it to my review-hans
(soon to be pdx86/for-next) branch:

https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/log/?h=review-hans

So I'm dropping this patch from the queue since this functionality is already
implemented now.

Regards,

Hans






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