[PATCH v2 0/6] Minor bug fixes and clean-up for MHI host driver

From: Bhaumik Bhatt
Date: Fri Nov 06 2020 - 12:45:01 EST


This patch series serves to clean up the MHI host driver by removing an
unnecessary counter and an unused function. It also renames a function to make
it clearly worded. There is currently no user of this exported function which
makes it is safe to do so now.

Bug fixes include adding a missing EXPORT_SYMBOL_GPL to a function, and adding
a return value check to bail out of RDDM download in kernel panic path.

An outlier among the group exports the mhi_get_exec_env() API for use by
controller drivers, in case they need to determine behavior on the basis of the
current execution environment.

This set of patches was tested on arm64.

v2:
-Removed the declaration for mhi_get_exec_env() from internal.h
-Improved on the error log message in RDDM download exit case due to unknown EE

Bhaumik Bhatt (6):
bus: mhi: core: Remove unnecessary counter from mhi_firmware_copy()
bus: mhi: core: Add missing EXPORT_SYMBOL for mhi_get_mhi_state()
bus: mhi: core: Expose mhi_get_exec_env() API for controllers
bus: mhi: core: Remove unused mhi_fw_load_worker() declaration
bus: mhi: core: Rename RDDM download function to use proper words
bus: mhi: core: Skip RDDM download for unknown execution environment

drivers/bus/mhi/core/boot.c | 15 +++++++++------
drivers/bus/mhi/core/internal.h | 2 --
drivers/bus/mhi/core/main.c | 2 ++
include/linux/mhi.h | 12 +++++++++---
4 files changed, 20 insertions(+), 11 deletions(-)

--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project