diff options
| author | Elia Devito <eliadevito@gmail.com> | 2020-10-04 23:13:05 +0200 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2020-10-07 16:03:23 +0200 |
| commit | 81c93798ef3ebd2109dc24371db3cc14cdf77777 (patch) | |
| tree | 066cd4cde01b39a70f07c321591d6409353122d5 /drivers/platform | |
| parent | 1797d588af15174d4a4e7159dac8c800538e4f8c (diff) | |
| download | linux-81c93798ef3ebd2109dc24371db3cc14cdf77777.tar.bz2 | |
platform/x86: hp-wmi: add support for thermal policy
HP Spectre notebooks (and probably other model as well)
support up to 4 thermal policy:
- HP Recommended
- Performance
- Cool
- Quiet
at least on HP Spectre x360 Convertible 15-df0xxx the firmware sets the
thermal policy to default but hardcode the odvp0 variable to 1, this causes
thermald to choose the wrong DPTF profile witch result in low performance
when notebook is on AC, calling thermal policy write command allow firmware
to correctly set the odvp0 variable.
Signed-off-by: Elia Devito <eliadevito@gmail.com>
Link: https://lore.kernel.org/r/20201004211305.11628-1-eliadevito@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'drivers/platform')
| -rw-r--r-- | drivers/platform/x86/hp-wmi.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c index 1762f335bac9..ecd477964d11 100644 --- a/drivers/platform/x86/hp-wmi.c +++ b/drivers/platform/x86/hp-wmi.c @@ -81,6 +81,7 @@ enum hp_wmi_commandtype { HPWMI_FEATURE2_QUERY = 0x0d, HPWMI_WIRELESS2_QUERY = 0x1b, HPWMI_POSTCODEERROR_QUERY = 0x2a, + HPWMI_THERMAL_POLICY_QUERY = 0x4c, }; enum hp_wmi_command { @@ -861,6 +862,26 @@ fail: return err; } +static int thermal_policy_setup(struct platform_device *device) +{ + int err, tp; + + tp = hp_wmi_read_int(HPWMI_THERMAL_POLICY_QUERY); + if (tp < 0) + return tp; + + /* + * call thermal policy write command to ensure that the firmware correctly + * sets the OEM variables for the DPTF + */ + err = hp_wmi_perform_query(HPWMI_THERMAL_POLICY_QUERY, HPWMI_WRITE, &tp, + sizeof(tp), 0); + if (err) + return err; + + return 0; +} + static int __init hp_wmi_bios_setup(struct platform_device *device) { /* clear detected rfkill devices */ @@ -872,6 +893,8 @@ static int __init hp_wmi_bios_setup(struct platform_device *device) if (hp_wmi_rfkill_setup(device)) hp_wmi_rfkill2_setup(device); + thermal_policy_setup(device); + return 0; } |