linux.git/drivers/platform, branch v6.18.21

platform/x86: ISST: Correct locked bit width

2026-04-02T11:23:18+00:00

commit fbddf68d7b4e1e6da7a78dd7fbd8ec376536584a upstream.

SST-PP locked bit width is set to three bits. It should be only one bit.
Use SST_PP_LOCK_WIDTH define instead of SST_PP_LEVEL_WIDTH.

Fixes: ea009e4769fa ("platform/x86: ISST: Add SST-PP support via TPMI")
Signed-off-by: Srinivas Pandruvada 
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/20260323153635.3263828-1-srinivas.pandruvada@linux.intel.com
Reviewed-by: Ilpo Järvinen 
Signed-off-by: Ilpo Järvinen 
Signed-off-by: Greg Kroah-Hartman

platform/x86: intel-hid: disable wakeup_mode during hibernation

2026-04-02T11:23:06+00:00

[ Upstream commit e02ea3ae8ee40d5835a845884c7b161a27c10bcb ]

Add a freeze handler which clears wakeup_mode. This fixes aborted hibernation on
Dell Precision 3880.

  Wakeup event detected during hibernation, rolling back

This system sends power button events during hibernation, even when triggered by
software.

Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218634
Fixes: 0c4cae1bc00d ("PM: hibernate: Avoid missing wakeup events during hibernation")
Signed-off-by: David McFarland 
Link: https://patch.msgid.link/20260205231629.1336348-1-corngood@gmail.com
Reviewed-by: Ilpo Järvinen 
Signed-off-by: Ilpo Järvinen 
Signed-off-by: Sasha Levin

platform/olpc: olpc-xo175-ec: Fix overflow error message to print inlen

2026-04-02T11:23:06+00:00

[ Upstream commit 2061f7b042f88d372cca79615f8425f3564c0b40 ]

The command length check validates inlen (> 5), but the error message
incorrectly printed resp_len. Print inlen so the log reflects the
actual command length.

Fixes: 0c3d931b3ab9e ("Platform: OLPC: Add XO-1.75 EC driver")
Signed-off-by: Alok Tiwari 
Acked-by: Lubomir Rintel 
Reviewed-by: Randy Dunlap 
Link: https://patch.msgid.link/20260310130138.700687-1-alok.a.tiwari@oracle.com
Reviewed-by: Ilpo Järvinen 
Signed-off-by: Ilpo Järvinen 
Signed-off-by: Sasha Levin

platform/x86: lenovo: wmi-gamezone: Drop gz_chain_head

2026-04-02T11:23:06+00:00

[ Upstream commit 5a3955f3602950d1888df743a5b1889e43b5cb60 ]

The gz_chain_head variable has been unused since the driver's initial
addition to the tree. Its use was eliminated between v3 and v4 during
development but due to the reference of gz_chain_head's wait_list
member, the compiler could not warn that it was unused.

After a (tip) commit ("locking/rwsem: Remove the list_head from struct
rw_semaphore"), which removed a reference to the variable passed to
__RWSEM_INITIALIZER(), certain configurations show an unused variable
warning from the Lenovo wmi-gamezone driver:

  drivers/platform/x86/lenovo/wmi-gamezone.c:34:31: warning: 'gz_chain_head' defined but not used [-Wunused-variable]
     34 | static BLOCKING_NOTIFIER_HEAD(gz_chain_head);
        |                               ^~~~~~~~~~~~~
  include/linux/notifier.h:119:39: note: in definition of macro 'BLOCKING_NOTIFIER_HEAD'
    119 |         struct blocking_notifier_head name =                    \
        |                                       ^~~~

Remove the variable to prevent the warning from showing up.

Fixes: 22024ac5366f ("platform/x86: Add Lenovo Gamezone WMI Driver")
Signed-off-by: Nathan Chancellor 
Reviewed-by: Mark Pearson 
Link: https://patch.msgid.link/20260313-lenovo-wmi-gamezone-remove-gz_chain_head-v1-1-ce5231f0c6fa@kernel.org
[ij: reorganized the changelog]
Reviewed-by: Ilpo Järvinen 
Signed-off-by: Ilpo Järvinen 
Signed-off-by: Sasha Levin

platform/x86: ISST: Check HWP support before MSR access

2026-04-02T11:23:06+00:00

[ Upstream commit 9f11d9b15efb5f77e810b6dfbeb01b4650a79eae ]

On some systems, HWP can be explicitly disabled in the BIOS settings
When HWP is disabled by firmware, the HWP CPUID bit is not set, and
attempting to read MSR_PM_ENABLE will result in a General Protection
(GP) fault.

  unchecked MSR access error: RDMSR from 0x770 at rIP: 0xffffffffc33db92e (disable_dynamic_sst_features+0xe/0x50 [isst_tpmi_core])
  Call Trace:
   
   ? ex_handler_msr+0xf6/0x150
   ? fixup_exception+0x1ad/0x340
   ? gp_try_fixup_and_notify+0x1e/0xb0
   ? exc_general_protection+0xc9/0x390
   ? terminate_walk+0x64/0x100
   ? asm_exc_general_protection+0x22/0x30
   ? disable_dynamic_sst_features+0xe/0x50 [isst_tpmi_core]
   isst_if_def_ioctl+0xece/0x1050 [isst_tpmi_core]
   ? ioctl_has_perm.constprop.42+0xe0/0x130
   isst_if_def_ioctl+0x10d/0x1a0 [isst_if_common]
   __se_sys_ioctl+0x86/0xc0
   do_syscall_64+0x8a/0x100
   entry_SYSCALL_64_after_hwframe+0x78/0xe2
  RIP: 0033:0x7f36eaef54a7

Add a check for X86_FEATURE_HWP before accessing the MSR. If HWP is
not available, return true safely.

Fixes: 12a7d2cb811d ("platform/x86: ISST: Add SST-CP support via TPMI")
Signed-off-by: Li RongQing 
Acked-by: Srinivas Pandruvada 
Link: https://patch.msgid.link/20260303074635.2218-1-lirongqing@baidu.com
Reviewed-by: Ilpo Järvinen 
Signed-off-by: Ilpo Järvinen 
Signed-off-by: Sasha Levin

platform/x86: oxpec: Add support for OneXPlayer X1 Air

2026-04-02T11:22:57+00:00

[ Upstream commit 2a3b4a8c10a64a62c4243007139d253dc1324dfd ]

X1 Air is an X1 variant with a newer Intel chipset. It uses the same
registers as the X1. Add a quirk for it to the oxpec driver.

Signed-off-by: Antheas Kapenekakis 
Link: https://patch.msgid.link/20260223183004.2696892-4-lkml@antheas.dev
Reviewed-by: Ilpo Järvinen 
Signed-off-by: Ilpo Järvinen 
Signed-off-by: Sasha Levin

platform/x86: oxpec: Add support for Aokzoe A2 Pro

2026-04-02T11:22:57+00:00

[ Upstream commit cd0883055b04586770dab43c64159348bf480a3e ]

Aokzoe A2 Pro is an older device that the oxpec driver is missing the
quirk for. It has the same behavior as the AOKZOE A1 devices. Add a
quirk for it to the oxpec driver.

Signed-off-by: Antheas Kapenekakis 
Link: https://patch.msgid.link/20260223183004.2696892-5-lkml@antheas.dev
Reviewed-by: Ilpo Järvinen 
Signed-off-by: Ilpo Järvinen 
Signed-off-by: Sasha Levin

platform/x86: oxpec: Add support for OneXPlayer X1z

2026-04-02T11:22:57+00:00

[ Upstream commit 4049c46edb5d44c0de045f6f504371705dd603dd ]

X1z is a variant of OneXPlayer X1 A with 8840U. It seems that only one
user has this one. Add a quirk for it to the oxpec driver.

Signed-off-by: Antheas Kapenekakis 
Link: https://patch.msgid.link/20260223183004.2696892-3-lkml@antheas.dev
Reviewed-by: Ilpo Järvinen 
Signed-off-by: Ilpo Järvinen 
Signed-off-by: Sasha Levin

platform/x86: oxpec: Add support for OneXPlayer APEX

2026-04-02T11:22:56+00:00

[ Upstream commit 3385ea97c14d271dcb0c6e6fcf16972f819eecd8 ]

OneXPlayer Apex is a new Strix Halo handheld. It uses the same registers
as the OneXPlayer Fly devices. Add a quirk for it to the oxpec driver.

Signed-off-by: Antheas Kapenekakis 
Link: https://patch.msgid.link/20260223183004.2696892-2-lkml@antheas.dev
Reviewed-by: Ilpo Järvinen 
Signed-off-by: Ilpo Järvinen 
Signed-off-by: Sasha Levin

platform/x86: touchscreen_dmi: Add quirk for y-inverted Goodix touchscreen on SUPI S10

2026-04-02T11:22:56+00:00

[ Upstream commit 7d87ed70fc95482c12edf9493c249b6413be485e ]

The touchscreen on the SUPI S10 tablet reports inverted Y coordinates,
causing touch input to be mirrored vertically relative to the display.

Add a quirk to set the "touchscreen-inverted-y" boolean device-property
on the touchscreen device, so that the goodix_ts driver will fixup
the coordinates.

Reported-by: Yajat Kumar 
Closes: https://lore.kernel.org/linux-input/20251230221639.582406-1-yajatapps3@gmail.com/
Tested-by: Yajat Kumar 
Signed-off-by: Hans de Goede 
Link: https://patch.msgid.link/20260217132346.34535-1-johannes.goede@oss.qualcomm.com
Reviewed-by: Ilpo Järvinen 
Signed-off-by: Ilpo Järvinen 
Signed-off-by: Sasha Levin