Linux kernel stable tree (mirror) https://git.radix-linux.su/kernel/linux.git/atom?h=linux-5.9.y 2020-06-29T12:00:57+00:00 2020-06-29T12:00:57+00:00 Srinivas Pandruvada srinivas.pandruvada@linux.intel.com 2020-06-24T18:51:40+00:00 urn:sha1:1e05daca83bb42cde569f75f3bd7c8828b1ef30f Add DPTF battery participant ACPI ID for platforms based on the Intel TigerLake SoC. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> [ rjw: Changelog ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> 2020-05-25T10:05:26+00:00 Srinivas Pandruvada srinivas.pandruvada@linux.intel.com 2020-05-22T21:45:09+00:00 urn:sha1:7b52b200cf5bdd04f3ee22121960bd6f4ec5efa1 This driver adds support for Dynamic Platform and Thermal Framework battery participant device support. These attributes are presented via sysfs interface under the platform device for the battery participant: $ls /sys/bus/platform/devices/INT3532:00/dptf_battery current_discharge_capbility_ma max_platform_power_mw no_load_voltage_mv high_freq_impedance_mohm max_steady_state_power_mw Refer to the documentation at Documentation/ABI/testing/sysfs-platform-dptf for details. Here the implementation reuses existing dptf-power.c as the motivation and processing is same. It also shares one ACPI method. Here this change is using participant type, "PTYP" method to identify and do different processing. By using participant type, create/delete either "dptf_power" or "dptf_battery" attribute group and send notifications. The particpant type for for the battery participant is 0x0C. ACPI methods description: PMAX (Intel(R) Dynamic Tuning Platform Max Power Supplied by Battery): This object evaluates to the maximum platform power that can be supported by the battery in milli watts. PBSS (Intel(R) Dynamic Tuning Power Battery Steady State): This object returns the max sustained power for battery in milli watts. RBHF (Intel(R) Dynamic Tuning High Frequency Impedance): This object returns high frequency impedance value that can be obtained from battery fuel gauge. VBNL (Intel(R) Dynamic Tuning No-Load Voltage) This object returns battery instantaneous no-load voltage that can be obtained from battery fuel gauge in milli volts CMPP (Intel(R) Dynamic Tuning Current Discharge Capability) This object returns battery discharge current capability obtained from battery fuel gauge milli amps. Notifications: 0x80: PMAX change. Used to notify Intel(R)Dynamic Tuning Battery participant driver when the PMAX has changed by 250mw. 0x83: PBSS change. Used to notify Intel(R) Dynamic Tuning Battery participant driver when the power source has changed. 0x85: RBHF change. Used to notify Intel(R)Dynamic Tuning Battery participant driver when the RBHF has changed over a threshold by 5mOhm. 0x86: Battery Capability change. Used to notify Intel(R)Dynamic Tuning Battery participant driver when the battery capability has changed. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> [ rjw: Subject ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> 2020-05-25T10:03:43+00:00 Srinivas Pandruvada srinivas.pandruvada@linux.intel.com 2020-05-21T20:30:15+00:00 urn:sha1:668ce99e4ed4c07bb14465f80492bc6cf76ed3c9 Add two additional attributes to the existing power participant driver: rest_of_platform_power_mw: (RO) Shows the rest of worst case platform power in mW outside of S0C. This will help in power distribution to SoC and rest of the system. For example on a test system, this value is 2.5W with a 15W TDP SoC. Based on the adapter rating (adapter_rating_mw), user space software can decide on proper power allocation to SoC to improve short term performance via powercap/RAPL interface. prochot_confirm: (WO) Confirm EC about a prochot notification. Also userspace is notified via sysfs_notify(), whenever power source or rest of the platform power is changed. So user space can use poll() system call on those attributes. The ACPI methods used in this patch are as follows: PROP This object evaluates to the rest of worst case platform power in mW. Bits: 23:0 Worst case rest of platform power in mW. PBOK PBOK is a method designed to provide a mechanism for OSPM to change power setting before EC can de-assert a PROCHOT from a device. The EC may receive several PROCHOTs, so it has a sequence number attached to PSRC (read via existing attribute "platform_power_source"). Once OSPM takes action for a PSRC change notification, it can call PBOK method to confirm with the sequence number. Bits: 3:0 Power Delivery State Change Sequence number 30 Reserved 31 0 – Not OK to de-assert PROCHOT 1 – OK to de-assert PROCHOT PSRC (Platform Power Source): Not new in this patch but for documentation for new bits This object evaluates to an integer that represents the system power source as well as the power delivery state change sequence number. Bits: 3:0 The current power source as an integer for AC, DC, USB, Wireless. 0 = DC, 1 = AC, 2 = USB, 3 = Wireless Charging 7:4 Power Delivery State Change Sequence Number. Default value is 0 Notifications: 0x81: (Power State Change) Used to notify when the power source has changed. 0x84: (PROP change) Used to notify when the platform rest of power has changed. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> [ rjw: Subject, minor ABI documentation edit ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> 2020-04-01T11:20:21+00:00 Gayatri Kammela gayatri.kammela@intel.com 2020-03-27T21:28:19+00:00 urn:sha1:b62c770fee699a137359e1f1da9bf14a7f348567 Tiger Lake's new unique ACPI device IDs for DPTF and fan drivers are not valid as the IDs are missing 'C'. Fix the IDs by updating them. After the update, the new IDs should now look like INT1047 --> INTC1047 INT1040 --> INTC1040 INT1043 --> INTC1043 INT1044 --> INTC1044 Fixes: 55cfe6a5c582 ("ACPI: DPTF: Add Tiger Lake ACPI device IDs") Fixes: c248dfe7e0ca ("ACPI: fan: Add Tiger Lake ACPI device ID") Suggested-by: Srinivas Pandruvada <srinivas.pandruvada@intel.com> Signed-off-by: Gayatri Kammela <gayatri.kammela@intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> 2019-12-19T21:51:55+00:00 Gayatri Kammela gayatri.kammela@intel.com 2019-12-16T18:31:48+00:00 urn:sha1:55cfe6a5c58223c51ee095693958738ee0d4c942 Tiger Lake has new unique ACPI device IDs that need to be added to the DPTF drivers to support it. Signed-off-by: Gayatri Kammela <gayatri.kammela@intel.com> [ rjw: Subject & changelog ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> 2019-06-19T15:09:55+00:00 Thomas Gleixner tglx@linutronix.de 2019-06-04T08:11:33+00:00 urn:sha1:d2912cb15bdda8ba4a5dd73396ad62641af2f520 Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2019-06-05T15:36:37+00:00 Thomas Gleixner tglx@linutronix.de 2019-05-29T14:18:02+00:00 urn:sha1:2025cf9e193de05b0654570dd639acb49ebd3adf Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 263 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141901.208660670@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2019-05-21T08:50:46+00:00 Thomas Gleixner tglx@linutronix.de 2019-05-19T12:07:45+00:00 urn:sha1:ec8f24b7faaf3d4799a7c3f4c1b87f6b02778ad1 Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2019-04-23T08:57:12+00:00 Kefeng Wang wangkefeng.wang@huawei.com 2019-04-23T07:49:56+00:00 urn:sha1:b0f65b917987dee71d0b1d3c65c0b52db00a55e0 Skip conversion to platform_device and use dev_get_drvdata() directly. Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> [ rjw: Changelog ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> 2019-01-29T10:04:15+00:00 Masahiro Yamada yamada.masahiro@socionext.com 2019-01-24T12:16:03+00:00 urn:sha1:580d0382c1cdc7aac9d99babc526d0d4c01e1fca It is too much to add extra header search path for all files in drivers/acpi/dptf/. Fix up one C file, and remove the header search path. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>