Hi Bhaumik, On Mon, Aug 10, 2020 at 03:00:54PM -0700, Bhaumik Bhatt wrote: > Save hardware information from BHI. > Allow reading and modifying some MHI variables for debug, test, and > informational purposes using debugfs. > Read values for device specific hardware information to be used by OEMs in > factory testing such as serial number and PK hash using sysfs. > > This set of patches was tested on arm64 and x86. > Sorry for stretching the review so long. Will apply the series to mhi-next once v5.9-rc1 is out. Thanks, Mani > v7: > -Added suggested-by and reviewed-by tags > -Fixed nitpick on removal of M3_fast counter as it was unused > -Updated sysfs documentation dates and intended kernel version > -Fixed minor debugfs formatting by removing an extra newline character > > v6: > -Introduced APIs for allocating and freeing the MHI controller so as to ensure > that it is always zero-initialized > -Moved gerrits around for counter introduction > -Fixed documentation for sysfs > > v5: > -Removed the debug entry to trigger reset and will be addressed in a seperate > patch > -Added patch bus: mhi: core: Use counters to track MHI device state transitions > -Updated helper API to trigger a non-blocking host resume > -Minor nitpicks also fixed > > v4: > -Removed bus: mhi: core: Introduce independent voting mechanism patch > -Removed bus vote function from debugfs due to independent voting removal > -Added helper resume APIs to aid consolidation of spread out code > -Added a clean-up patch and a missing host resume in voting API > > v3: > -Add patch to check for pending packets in suspend as a dependency for the > independent voting mechanism introduction > -Include register dump entry for debugfs to dump MHI, BHI, and BHIe registers > -Update commit message for the debugfs patch > -Updated Documentation/ABI with the required info for sysfs > -Updated debugfs patch to include a new KConfig entry and dependencies > -Updated reviewed-by for some patches > > v2: > -Added a new debugfs.c file for specific debugfs entries and code > -Updated commit text and addressed some comments for voting change > -Made sure sysfs is only used for serial number and OEM PK hash usage > > Bhaumik Bhatt (11): > bus: mhi: core: Remove double occurrence for mhi_ctrl_ev_task() > declaration > bus: mhi: core: Abort suspends due to outgoing pending packets > bus: mhi: core: Use helper API to trigger a non-blocking host resume > bus: mhi: core: Trigger host resume if suspended during > mhi_device_get() > bus: mhi: core: Use generic name field for an MHI device > bus: mhi: core: Introduce helper function to check device state > bus: mhi: core: Introduce counters to track MHI device state > transitions > bus: mhi: core: Introduce debugfs entries for MHI > bus: mhi: core: Read and save device hardware information from BHI > bus: mhi: core: Introduce APIs to allocate and free the MHI controller > bus: mhi: core: Introduce sysfs entries for MHI > > Documentation/ABI/stable/sysfs-bus-mhi | 21 ++ > MAINTAINERS | 1 + > drivers/bus/mhi/Kconfig | 8 + > drivers/bus/mhi/core/Makefile | 5 +- > drivers/bus/mhi/core/boot.c | 17 +- > drivers/bus/mhi/core/debugfs.c | 409 +++++++++++++++++++++++++++++++++ > drivers/bus/mhi/core/init.c | 81 ++++++- > drivers/bus/mhi/core/internal.h | 37 ++- > drivers/bus/mhi/core/main.c | 27 +-- > drivers/bus/mhi/core/pm.c | 26 ++- > include/linux/mhi.h | 30 ++- > 11 files changed, 623 insertions(+), 39 deletions(-) > create mode 100644 Documentation/ABI/stable/sysfs-bus-mhi > create mode 100644 drivers/bus/mhi/core/debugfs.c > > -- > The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, > a Linux Foundation Collaborative Project >
