This patch series removes the SSRAM support from Intel PMC Core driver and creates a separate PCI driver for SSRAM device. The new Intel PMC SSRAM driver provides the following functionalities: 1. Search and store the PMC information in a structure, including PWRMBASE address and devid for each available PMC. Then Intel PMC Core driver achieves the PMC information using the API provided by the new driver. 2. Search and register Intel Platform Monitoring Techology telemetry regions so they would by available for read through sysfs and Intel PMT API. Intel PMC Core driver can achieve Low Power Mode requirement information from a telemetry region registered by the new driver. The above functionalities was previously handled by Intel PMC Core driver. Intel PMC Core driver returns -EPROBE_DEFER when trying to read data from a telem region that is not available yet. This setup may result in an infinite loop of .probe() calls as Intel PMC Core driver creates child devices. Creating a separate PCI driver avoids the infinite loop possibility. Xi Pardee (7): platform/x86:intel/pmc: Remove SSRAM support from PMC Core platform/x86:intel/pmc: Create Intel PMC SSRAM Telemetry driver platform/x86:intel/pmc: Add support to get PMC information from SSRAM platform/x86:intel/pmt: Get PMC from SSRAM for available platforms platform/x86:intel/pmt: Create inline version for telemetry functions platform/x86:intel/pmc: Add support to Retrieve LPM information platform/x86:intel/pmc: Get LPM information for available platforms drivers/platform/x86/intel/pmc/Kconfig | 13 +- drivers/platform/x86/intel/pmc/Makefile | 8 +- drivers/platform/x86/intel/pmc/arl.c | 36 +- drivers/platform/x86/intel/pmc/core.c | 216 +++++++++++- drivers/platform/x86/intel/pmc/core.h | 25 +- drivers/platform/x86/intel/pmc/core_ssram.c | 326 ------------------ drivers/platform/x86/intel/pmc/lnl.c | 36 +- drivers/platform/x86/intel/pmc/mtl.c | 34 +- .../platform/x86/intel/pmc/ssram_telemetry.c | 184 ++++++++++ .../platform/x86/intel/pmc/ssram_telemetry.h | 45 +++ drivers/platform/x86/intel/pmt/telemetry.h | 19 +- 11 files changed, 550 insertions(+), 392 deletions(-) delete mode 100644 drivers/platform/x86/intel/pmc/core_ssram.c create mode 100644 drivers/platform/x86/intel/pmc/ssram_telemetry.c create mode 100644 drivers/platform/x86/intel/pmc/ssram_telemetry.h -- 2.43.0
