ACPI 6.2 specification describes CPPC v3 tables. There are two 2 new optional registers in the CPPC v3 tables, which enables more accurate conversion between CPPC's abstract performance and CPU frequency(KHz). The two new read-only registers describe lowest and nominal frequencies corresponding to lowest and nominal abstract performance. In addition to CPPC v3(patch 1 and 3), this series documents the ACPI CPPC sysfs interface(patch 4) and fixes a checking for error(patch 2). Prashanth Prakash (4): ACPI / CPPC: Add support for CPPC v3 ACPI / CPPC: Check for valid PCC subspace only if PCC regs are present cpufreq / CPPC: Support for CPPC v3 ACPI / CPPC: Document CPPC sysfs interface Documentation/acpi/cppc_sysfs.txt | 66 +++++++++++++++++++++++ drivers/acpi/cppc_acpi.c | 111 +++++++++++++++++++++++++++++--------- drivers/cpufreq/cppc_cpufreq.c | 84 ++++++++++++++++++++++++----- include/acpi/cppc_acpi.h | 14 +++-- 4 files changed, 234 insertions(+), 41 deletions(-) create mode 100644 Documentation/acpi/cppc_sysfs.txt -- Qualcomm Datacenter Technologies on behalf of Qualcomm Technologies, Inc. Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project. -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html