kernel/linux.git/drivers/platform/x86/intel, branch linux-7.0.y

platform/x86: intel-vbtn: Check ACPI_HANDLE() against NULL

2026-06-01T15:54:49+00:00

[ Upstream commit a9f305c5a355efeb240d406d378491d9eec02d07 ] Every platform driver can be forced to match a device that doesn't match its list of device IDs because of device_match_driver_override(), so platform drivers that rely on the existence of a device's ACPI companion object need to verify its presence. Accordingly, add a requisite ACPI_HANDLE() check against NULL to the platform/x86 intel-vbtn driver. Fixes: 26173179fae1 ("platform/x86: intel-vbtn: Eval VBDL after registering our notifier") Signed-off-by: Rafael J. Wysocki Reviewed-by: Andy Shevchenko Link: https://patch.msgid.link/3426431.aeNJFYEL58@rafael.j.wysocki Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen Signed-off-by: Sasha Levin

platform/x86: intel_sar: Check ACPI_HANDLE() against NULL

2026-06-01T15:54:49+00:00

[ Upstream commit 2765f16c12af7c2533763e46b8113b727354012d ] Every platform driver can be forced to match a device that doesn't match its list of device IDs because of device_match_driver_override(), so platform drivers that rely on the existence of a device's ACPI companion object need to verify its presence. Accordingly, add a requisite ACPI_HANDLE() check against NULL to the platform/x86 intel_sar driver. Fixes: dcfbd31ef4bc ("platform/x86: BIOS SAR driver for Intel M.2 Modem") Signed-off-by: Rafael J. Wysocki Reviewed-by: Andy Shevchenko Link: https://patch.msgid.link/14023870.uLZWGnKmhe@rafael.j.wysocki Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen Signed-off-by: Sasha Levin

platform/x86: intel-hid: Check ACPI_HANDLE() against NULL

2026-06-01T15:54:49+00:00

[ Upstream commit 5c69e090ae5dd93d910f70db0796357080707d26 ] Every platform driver can be forced to match a device that doesn't match its list of device IDs because of device_match_driver_override(), so platform drivers that rely on the existence of a device's ACPI companion object need to verify its presence. Accordingly, add a requisite ACPI_HANDLE() check against NULL to the platform/x86 intel-hid driver. Fixes: ecc83e52b28c ("intel-hid: new hid event driver for hotkeys") Signed-off-by: Rafael J. Wysocki Reviewed-by: Andy Shevchenko Link: https://patch.msgid.link/1971512.tdWV9SEqCh@rafael.j.wysocki Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen Signed-off-by: Sasha Levin

platform/x86: intel: Move debugfs register before creating devices

2026-05-23T11:09:39+00:00

commit ad3bff944c0f4f2e913298a9664391af32f87491 upstream. It is possible that the driver handling device is enumerated before registering debugfs. If the driver wants to access debugfs by calling tpmi_get_debugfs_dir(), this will return error in this case. Hence register debugfs before creating devices. Fixes: 811f67c51636 ("platform/x86/intel/tpmi: Add new auxiliary driver for performance limits") Signed-off-by: Srinivas Pandruvada Cc: Stable@vger.kernel.org Link: https://patch.msgid.link/20260430151103.1549733-2-srinivas.pandruvada@linux.intel.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen Signed-off-by: Greg Kroah-Hartman

platform/x86/intel-uncore-freq: Increase minor version

2026-03-27T11:15:52+00:00

The current implementation doesn't require any changes to support minor version 3, hence increment it to avoid "Unsupported minor version:3" message. Signed-off-by: Srinivas Pandruvada Link: https://patch.msgid.link/20260325193158.3417382-2-srinivas.pandruvada@linux.intel.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform/x86: ISST: Increase minor version

2026-03-27T11:15:50+00:00

The current implementation doesn't require any changes to support minor version 3, hence increment it to avoid "Unsupported minor version:3" message. Signed-off-by: Srinivas Pandruvada Link: https://patch.msgid.link/20260325193158.3417382-1-srinivas.pandruvada@linux.intel.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform/x86/intel-uncore-freq: Handle autonomous UFS status bit

2026-03-27T11:14:44+00:00

When the AUTONOMOUS_UFS_DISABLED bit is set in the header, the ELC (Efficiency Latency Control) feature is non-functional. Hence, return error for read or write to ELC attributes. Fixes: bb516dc79c4a ("platform/x86/intel-uncore-freq: Add support for efficiency latency control") Signed-off-by: Srinivas Pandruvada Cc: stable@vger.kernel.org Link: https://patch.msgid.link/20260325192909.3417322-1-srinivas.pandruvada@linux.intel.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform/x86: ISST: Reset core count to 0

2026-03-27T11:00:32+00:00

Based on feature revision, number of buckets can be less than the TRL_MAX_BUCKETS. In that case core counts in the remaining buckets can be set to some invalid values. Hence reset core count to 0 for all buckets before assigning correct values. Fixes: 885d1c2a30b7 ("platform/x86: ISST: Support SST-TF revision 2") Signed-off-by: Srinivas Pandruvada Cc: stable@vger.kernel.org Link: https://patch.msgid.link/20260325192638.3417281-1-srinivas.pandruvada@linux.intel.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform/x86: ISST: Correct locked bit width

2026-03-24T10:31:10+00:00

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

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

2026-03-23T12:49:06+00:00

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