linux-kernel - [PATCH v2 0/6] Introduce features and debugfs/sysfs entries for MHI

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Date:   Tue, 12 May 2020 10:42:08 -0700
From:   Bhaumik Bhatt <bbhatt@...eaurora.org>
To:     manivannan.sadhasivam@...aro.org
Cc:     linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        hemantk@...eaurora.org, jhugo@...eaurora.org,
        Bhaumik Bhatt <bbhatt@...eaurora.org>
Subject: [PATCH v2 0/6] Introduce features and debugfs/sysfs entries for MHI

Introduce independent bus and device voting mechanism for clients and save
hardware information from BHI.
Allow reading and modifying some MHI variables for debug, test, and
information 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.

v2:
-Please note: an upcoming ath11k driver patch will depend on the following patch:
"bus: mhi: core: Introduce independent voting mechanism"
-Fixed typo in one of the patches
-Updated MAINTAINERS for the sysfs ABI documentation

Bhaumik Bhatt (6):
  bus: mhi: core: Introduce independent voting mechanism
  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 debugfs entries and counters for MHI
  bus: mhi: core: Read and save device hardware information from BHI
  bus: mhi: core: Introduce sysfs entries for MHI

 Documentation/ABI/stable/sysfs-bus-mhi |  25 ++
 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         | 431 +++++++++++++++++++++++++++++++++
 drivers/bus/mhi/core/init.c            |  80 +++++-
 drivers/bus/mhi/core/internal.h        |  29 +++
 drivers/bus/mhi/core/main.c            |   6 +-
 drivers/bus/mhi/core/pm.c              |  79 ++++--
 include/linux/mhi.h                    |  39 ++-
 11 files changed, 673 insertions(+), 47 deletions(-)
 create mode 100644 Documentation/ABI/stable/sysfs-bus-mhi
 create mode 100644 drivers/bus/mhi/core/debugfs.c

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