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| author | Denis Benato <denis.benato@linux.dev> | 2026-09-25 14:42:27 +0000 |
|---|---|---|
| committer | Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2026-10-07 13:06:40 +0300 |
| commit | 10eb812c822620c7a11ac2840076e1cb2330cf37 (patch) | |
| tree | 5b4407c5713d63642de5d42d161dc2a7aa3fade8 /include/linux/platform_data | |
| parent | 96c6f54591d0bc24c2a3ead80bbe23f20d930bce (diff) | |
| download | linux-next-10eb812c822620c7a11ac2840076e1cb2330cf37.tar.gz linux-next-10eb812c822620c7a11ac2840076e1cb2330cf37.zip | |
platform/x86: asus-armoury: add dGPU disable fallback DEVID for ProArt H7606 series
Newer ASUS ProArt laptops (e.g. H7606 series) implement dGPU power
control on WMI DEVID 0x00090120 instead of the usual 0x00090020.
The default DEVID returns 0xFFFFFFE2 on these models, so the
dgpu_disable firmware attribute is never created and the dGPU cannot
be re-enabled from Linux at all.
Add a fallback probe for device ID 0x00090120 following the same
approach as the gpu_mux_dev_id probe.
Details for 0x00090120 (confirmed on H7606W using direct WMNB calls
and inspecting the DSDT DEVS handler):
- Reading DSTS returns 0x00010001 when the dGPU is off (CUMA=1),
or 0x00010000 when it's on.
- Writing DEVS: 0 enables the dGPU (calls PG00._ON() + Notifies
PEGP, Device Check), and 1 disables or ejects it.
This behavior matches the dgpu_disable attribute (1 = disabled).
Signed-off-by: Denis Benato <denis.benato@linux.dev>
Link: https://patch.msgid.link/20260925144229.3693-4-denis.benato@linux.dev
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Diffstat (limited to 'include/linux/platform_data')
| -rw-r--r-- | include/linux/platform_data/x86/asus-wmi.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/platform_data/x86/asus-wmi.h b/include/linux/platform_data/x86/asus-wmi.h index be4d2873ffc9..4ea1ccc1d0ee 100644 --- a/include/linux/platform_data/x86/asus-wmi.h +++ b/include/linux/platform_data/x86/asus-wmi.h @@ -139,6 +139,9 @@ /* dgpu on/off */ #define ASUS_WMI_DEVID_DGPU 0x00090020 +/* dgpu on/off - alternative to ASUS_WMI_DEVID_DGPU */ +#define ASUS_WMI_DEVID_GPU_MODE 0x00090120 + #define ASUS_WMI_DEVID_APU_MEM 0x000600C1 #define ASUS_WMI_DEVID_DGPU_POWER_STATE 0x00120097 |