kernel/drivers/platform/x86/intel/pmc, branch linux-rolling-stable

platform/x86:intel/pmc: Enable SSRAM support for Wildcat Lake

2025-11-07T16:49:40Z

Enable Wildcat Lake platforms to achieve PMC information from Intel PMC SSRAM Telemetry driver and substate requirements data from telemetry region. Signed-off-by: Xi Pardee Link: https://patch.msgid.link/20251105215020.1984036-2-xi.pardee@linux.intel.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform/x86:intel/pmc: Remove redundant has_die_c6 variable

2025-10-15T09:21:18Z

Remove has_die_c6 variable from the pmc_dev struct. This variable is unnecessary as the availability of die C6 could be inferred by the punit_ep variable. Signed-off-by: Xi Pardee Link: https://patch.msgid.link/20251014214548.629023-7-xi.pardee@linux.intel.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform/x86:intel/pmc: Relocate lpm_req_guid to pmc_reg_map

2025-10-15T09:21:17Z

Relocate the lpm_req_guid field from pmc_info to pmc_reg_map. The previous implementation stored lpm_req_guid in pmc_info and relied on pmc_core_find_guid() to retrieve the correct GUID, which was unnecessary. Since lpm_req_guid is specific to PMC, pmc_reg_map is a more appropriate location for this information. Signed-off-by: Xi Pardee Link: https://patch.msgid.link/20251014214548.629023-6-xi.pardee@linux.intel.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform/x86:intel/pmc: Rename PMC index variable to pmc_idx

2025-10-15T09:21:15Z

Rename all PMC index variables to pmc_idx in core.c. This improves code readability and consistency. Signed-off-by: Xi Pardee Link: https://patch.msgid.link/20251014214548.629023-5-xi.pardee@linux.intel.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform/x86:intel/pmc: Add DMU GUID to Arrow Lake U/H

2025-10-15T09:21:14Z

Arrow Lake U/H platforms may have multiple GUIDs pointing to the same telemetry region. Add the second possible GUID to the GUID list to support the Arrow Lake U/H platforms with this GUID. Signed-off-by: Xi Pardee Link: https://patch.msgid.link/20251014214548.629023-4-xi.pardee@linux.intel.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform/x86:intel/pmc: Add support for multiple DMU GUIDs

2025-10-15T09:20:03Z

Enable support for multiple DMU GUIDs to accommodate Arrow Lake H/U platforms. Arrow Lake U/H may have several GUIDs pointing to a single telemetry region providing die C6 value Add support to search for available GUIDs. Signed-off-by: Xi Pardee Link: https://patch.msgid.link/20251014214548.629023-3-xi.pardee@linux.intel.com [ij: add include & reverse logic in a loop] Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform/x86:intel/pmc: Update Arrow Lake telemetry GUID

2025-10-15T09:18:46Z

Update ARL_PMT_DMU_GUID value. Arrow Lake PMT DMU GUID has been updated after it was add to the driver. This updates ensures that the die C6 value is available in the debug filesystem. Bugzilla Link: https://bugzilla.kernel.org/show_bug.cgi?id=220421 Fixes: 83f168a1a437 ("platform/x86/intel/pmc: Add Arrow Lake S support to intel_pmc_core driver") Tested-by: Mark Pearson Signed-off-by: Xi Pardee Link: https://patch.msgid.link/20251014214548.629023-2-xi.pardee@linux.intel.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

Merge tag 'platform-drivers-x86-v6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

2025-10-04T22:28:18Z

Pull x86 platform driver updates from Ilpo Järvinen: - amd/pmf: - Add support for adjusting PMF PPT and PPT APU thresholds - Extend custom BIOS inputs for more policies - Update ta_pmf_action structure to the latest PMF TA - arm64: - thinkpad-t14s-ec: Add EC driver for ThinkPad T14s Gen6 Snapdragon - int3472: - Increase handshake GPIO delay - intel/pmc: - SSRAM support for Lunar Lake and Panther Lake - Support reading substate requirements data from S0ix blockers (for platforms starting from Panther Lake) - Wildcat Lake support - intel-uncore-freq: - Solve duplicate sysfs entry warnings - Present unique domain ID per package - portwell-ec: - Support suspend/resume - Add hwmon support for voltage and temperature - redmi-wmi: - Add WMI driver for Redmibook keyboard - think-lmi: - Certificate support for ThinkCenter - x86-android-tables + others: - Convert away from legacy GPIO APIs - x86-android-tables: - Add support for Acer A1-840 tablet - Fix modules list for Lenovo devices - Stop using EPROBE_DEFER - Miscellaneous cleanups / refactoring / improvements * tag 'platform-drivers-x86-v6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (63 commits) platform/x86: pcengines-apuv2: Use static device properties platform/x86: meraki-mx100: Use static device properties platform/x86: barco-p50-gpio: use software nodes for gpio-leds/keys platform/x86: x86-android-tablets: Stop using EPROBE_DEFER platform/x86: x86-android-tablets: Fix modules lists for Lenovo devices platform/x86: x86-android-tablets: Simplify lenovo_yoga_tab2_830_1050_exit() platform/x86: x86-android-tablets: Add support for Acer A1-840 tablet platform/x86: x86-android-tablets: Move Acer info to its own file platform/x86: x86-android-tablets: Update my email address platform/x86: x86-android-tablets: Simplify node-group [un]registration platform/x86: x86-android-tablets: use swnode_group instead of manual registering platform/x86: x86-android-tablets: replace bat_swnode with swnode_group platform/x86: x86-android-tablets: convert gpio_keys devices to GPIO references platform/x86: x86-android-tablets: remove support for GPIO lookup tables platform/x86: x86-android-tablets: convert Yoga Tab2 fast charger to GPIO references platform/x86: x86-android-tablets: convert HID-I2C devices to GPIO references platform/x86: x86-android-tablets: convert wm1502 devices to GPIO references platform/x86: x86-android-tablets: convert int3496 devices to GPIO references platform/x86: x86-android-tablets: convert EDT devices to GPIO references platform/x86: x86-android-tablets: convert Novatek devices to GPIO references ...

platform/x86:intel/pmc: Replace dev_warn() with dev_dbg()

2025-09-26T11:26:09Z

Replace dev_warn() with dev_dbg() to reduce unnecessary warning messages. When the low power mode priority register contains invalid data, the Intel PMC Core driver can still utilize the default priority list. This scenario is more suited for debug information rather than warning. Signed-off-by: Xi Pardee Link: https://patch.msgid.link/20250916191339.1748512-1-xi.pardee@linux.intel.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen

platform/x86:intel/pmc: Enable SSRAM support for Panther Lake

2025-09-11T08:23:57Z

Enable Panther Lake platforms to achieve PMC information from Intel PMC SSRAM Telemetry driver and substate requirements data from telemetry region. Signed-off-by: Xi Pardee Link: https://patch.msgid.link/20250910210629.11198-6-xi.pardee@linux.intel.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen