[v3,00/19] MHI changes for v5.10

Message

Manivannan Sadhasivam Sept. 29, 2020, 5:51 p.m. UTC

Hi Greg,

Here is the MHI series for v5.10 cycle. Most of the patches are cleanups
in the MHI stack. Notable changes are below:

* Saving the client device hardware information obtained through the BHI
  protocol. This information will be exposed through sysfs to make use in
  the userland applications.
* Introduce sysfs entries to read the serial number and OEM PK hash values
  of the client device obtained from BHI protocol. Relevant API documentation
  is also added.
* Introduce debugfs entries to show MHI states, events, channels, register
  state etc... to aid debug.
* Remove the channel name from MHI device name as the device is not specific
  to channels. Used generic names instead!
* Fix the warning reported by Kbuild bot by using append (+=) Kbuild rule
  to the mhi/core Makefile.
* Introduce APIs to allocate and free MHI controllers. This is done to make
  sure that the allocated structs are initialized to NULL before passing to
  the MHI core.
* Remove the requirement to have a dedicated IRQ for each event ring.
  The MHI controllers can now use a single IRQ for all event rings.

Please consider merging!

Thanks,
Mani

Changes in v2:

* Clubbed both series (take one and two) onto a single one
* Used dev_groups to manage sysfs attributes
* Merged the debugfs fix patch with the debugfs patch
* Dropped MAX_MTU patch for now

Changes in v3:

* Dropped below patches:
    bus: mhi: Remove auto-start option
    net: qrtr: Start MHI channels during init

Bhaumik Bhatt (12):
  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: Read and save device hardware information from BHI
  bus: mhi: core: Introduce APIs to allocate and free the MHI controller
  bus: mhi: Fix entries based on Kconfig coding style
  bus: mhi: core: Introduce debugfs entries for MHI
  bus: mhi: core: Introduce sysfs entries for MHI

Clark Williams (1):
  bus: mhi: Remove include of rwlock_types.h

Hemant Kumar (1):
  bus: mhi: core: Add const qualifier to MHI config information

Loic Poulain (3):
  bus: mhi: core: Allow shared IRQ for event rings
  bus: mhi: Remove unused nr_irqs_req variable
  bus: mhi: debugfs: Print channel context read-pointer

Manivannan Sadhasivam (1):
  bus: mhi: core: Fix the building of MHI module

Randy Dunlap (1):
  bus: mhi: fix doubled words and struct image_info kernel-doc

 Documentation/ABI/stable/sysfs-bus-mhi |  21 ++
 MAINTAINERS                            |   1 +
 drivers/bus/mhi/Kconfig                |  20 +-
 drivers/bus/mhi/core/Makefile          |   3 +-
 drivers/bus/mhi/core/boot.c            |  17 +-
 drivers/bus/mhi/core/debugfs.c         | 411 +++++++++++++++++++++++++
 drivers/bus/mhi/core/init.c            |  87 +++++-
 drivers/bus/mhi/core/internal.h        |  37 ++-
 drivers/bus/mhi/core/main.c            |  27 +-
 drivers/bus/mhi/core/pm.c              |  28 +-
 include/linux/mhi.h                    |  51 ++-
 11 files changed, 639 insertions(+), 64 deletions(-)
 create mode 100644 Documentation/ABI/stable/sysfs-bus-mhi
 create mode 100644 drivers/bus/mhi/core/debugfs.c