linux-toradex.git/drivers/acpi/dptf/Makefile, branch master Linux kernel for Apalis and Colibri modules ACPI: DPTF: Remove int340x thermal scan handler 2025-11-07T19:45:37+00:00 Slawomir Rosek srosek@google.com 2025-11-03T16:25:16+00:00 966c9e65ba5246d5874a9f6ac5f318f7f50aea89 Using the IS_ENABLED() macro in the int340x_thermal_handler_attach() forces the kernel to be recompiled when thermal drivers are enabled or disabled, which is a significant limitation of its modularity. The IS_ENABLED() macro is particularly problematic for the Android Generic Kernel Image (GKI) project which uses unified core kernel while SoC/board support is moved to loadable vendor modules. The Intel Dynamic Platform and Thermal Framework (DPTF) requires thermal drivers to be loaded at runtime, thus ACPI bus scan handler is not needed and acpi_default_enumeration() may create all platform devices, regardless of the actual setting of CONFIG_INT340X_THERMAL. Signed-off-by: Slawomir Rosek <srosek@google.com> Link: https://patch.msgid.link/20251103162516.2606158-3-srosek@google.com Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> 
Using the IS_ENABLED() macro in the int340x_thermal_handler_attach()
forces the kernel to be recompiled when thermal drivers are enabled
or disabled, which is a significant limitation of its modularity.

The IS_ENABLED() macro is particularly problematic for the Android
Generic Kernel Image (GKI) project which uses unified core kernel
while SoC/board support is moved to loadable vendor modules.

The Intel Dynamic Platform and Thermal Framework (DPTF) requires
thermal drivers to be loaded at runtime, thus ACPI bus scan handler
is not needed and acpi_default_enumeration() may create all platform
devices, regardless of the actual setting of CONFIG_INT340X_THERMAL.

Signed-off-by: Slawomir Rosek <srosek@google.com>
Link: https://patch.msgid.link/20251103162516.2606158-3-srosek@google.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPI: DPTF: Add PCH FIVR participant driver 2020-09-18T16:13:56+00:00 Srinivas Pandruvada srinivas.pandruvada@linux.intel.com 2020-09-15T23:18:14+00:00 2ce6324eadb014136a4baaf7a174f47d771364a0 This driver adds support for Dynamic Platform and Thermal Framework (DPTF) PCH (Platform Controller Hub) FIVR (Fully Integrated Voltage Regulator) participant support. This participant is responsible for exposing platform telemetry and control for: freq_mhz_high_clock freq_mhz_low_clock These attributes are used to get and set PCH FIVR switching frequency for thermal and radio frequency interference mitigation. Refer to Documentation/ABI/testing/sysfs-platform-dptf for ABI details. ACPI methods description used in this driver: RFC0: This ACPI method to set PCH FIVR switching frequency when FIVR clock is 19.2MHz or 24MHz. The ACPI method takes a DWORD value. GFC0: This ACPI method to get PCH FIVR switching frequency when FIVR clock is 19.2MHz or 24MHz. RFC1: This ACPI method to set PCH FIVR switching frequency when FIVR clock is 38.4MHz. The ACPI method takes a DWORD value. GFC1: This ACPI method to get PCH FIVR switching frequency when FIVR clock is 38.4MHz. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> 
This driver adds support for Dynamic Platform and Thermal Framework
(DPTF) PCH (Platform Controller Hub) FIVR (Fully Integrated Voltage
Regulator) participant support.

This participant is responsible for exposing platform telemetry and
control for:
	freq_mhz_high_clock
	freq_mhz_low_clock

These attributes are used to get and set PCH FIVR switching frequency
for thermal and radio frequency interference mitigation.

Refer to Documentation/ABI/testing/sysfs-platform-dptf for ABI details.

ACPI methods description used in this driver:
RFC0: This ACPI method to set PCH FIVR switching frequency when FIVR
clock is 19.2MHz or 24MHz. The ACPI method takes a DWORD value.
GFC0: This ACPI method to get PCH FIVR switching frequency when FIVR
clock is 19.2MHz or 24MHz.
RFC1: This ACPI method to set PCH FIVR switching frequency when FIVR
clock is 38.4MHz. The ACPI method takes a DWORD value.
GFC1: This ACPI method to get PCH FIVR switching frequency when FIVR
clock is 38.4MHz.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21T08:50:46+00:00 Thomas Gleixner tglx@linutronix.de 2019-05-19T12:07:45+00:00 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> 
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>
ACPI / DPTF: remove header search path to the parent directory 2019-01-29T10:04:15+00:00 Masahiro Yamada yamada.masahiro@socionext.com 2019-01-24T12:16:03+00:00 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> 
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>
ACPI / DPTF: move int340x_thermal.c to the DPTF folder 2016-07-21T11:42:46+00:00 Srinivas Pandruvada srinivas.pandruvada@linux.intel.com 2016-07-19T21:57:49+00:00 c11dd70fd7f50fca7dc05520ec8075f12d93cb63 Since DPTF has its own folder under ACPI, move this file also there. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> 
Since DPTF has its own folder under ACPI, move this file also there.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
ACPI / DPTF: Add DPTF power participant driver 2016-07-21T11:40:09+00:00 Srinivas Pandruvada srinivas.pandruvada@linux.intel.com 2016-07-17T20:45:32+00:00 6256ebd5daf93505f12b66916fb1b961b38f4cf2 This driver adds support for Dynamic Platform and Thermal Framework (DPTF) Platform Power Participant device (INT3407) support. This participant is responsible for exposing platform telemetry such as: max_platform_power platform_power_source adapter_rating battery_steady_power charger_type These attributes are presented via sysfs interface under the INT3407 platform device: $ls /sys/bus/platform/devices/INT3407\:00/dptf_power/ adapter_rating_mw battery_steady_power_mw charger_type max_platform_power_mw platform_power_source ` ACPI methods description used in this driver: PMAX: Maximum platform power that can be supported by the battery in mW. PSRC: System charge source, 0x00 = DC 0x01 = AC 0x02 = USB 0x03 = Wireless Charger ARTG: Adapter rating in mW (Maximum Adapter power) Must be 0 if no AC adapter is plugged in. CTYP: Charger Type, Traditional : 0x01 Hybrid: 0x02 NVDC: 0x03 PBSS: Returns max sustained power for battery in milliWatts. The INT3407 also contains _BTS and _BIX objects, which are compliant to ACPI 5.0, specification. Those objects are already used by ACPI battery (PNP0C0A) driver and information about them is exported via Linux power supply class registration. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> 
This driver adds support for Dynamic Platform and Thermal Framework
(DPTF) Platform Power Participant device (INT3407) support.

This participant is responsible for exposing platform telemetry such as:
    max_platform_power
    platform_power_source
    adapter_rating
    battery_steady_power
    charger_type

These attributes are presented via sysfs interface under the INT3407
platform device:
$ls /sys/bus/platform/devices/INT3407\:00/dptf_power/
    adapter_rating_mw
    battery_steady_power_mw
    charger_type
    max_platform_power_mw
    platform_power_source
    `
ACPI methods description used in this driver:
    PMAX: Maximum platform power that can be supported by the battery in
          mW.
    PSRC: System charge source,
            0x00 = DC
            0x01 = AC
            0x02 = USB
            0x03 = Wireless Charger
    ARTG: Adapter rating in mW (Maximum Adapter power) Must be 0 if no
          AC adapter is plugged in.
    CTYP: Charger Type,
            Traditional : 0x01
            Hybrid: 0x02
            NVDC: 0x03
    PBSS: Returns max sustained power for battery in milliWatts.

The INT3407 also contains _BTS and _BIX objects, which are compliant to
ACPI 5.0, specification. Those objects are already used by ACPI battery
(PNP0C0A) driver and information about them is exported via Linux power
supply class registration.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>