Allow handling EDL mode after SYS_ERROR occurs by reading the execution environment post handling and move to power on reset state to accommodate the scenario. Handle EDL mode properly and wait for ready instead of just exiting from the firmware load. Allow use of the Flash Programmer execution environment as a mission mode use case for a blank NAND power up scenario. Always attempt a wait for MHI ready state as device could be waiting for the host to do so after pass through execution environment is seen. Introduce patch to improve state awareness and aid in debugging.
This patch series was tested on x86_64 architecture. Bhaumik Bhatt (6): bus: mhi: core: Rely on accurate method to determine EDL mode bus: mhi: core: Wait for ready after an EDL firmware download bus: mhi: core: Handle EDL mode entry appropriately bus: mhi: core: Identify Flash Programmer as a mission mode use case bus: mhi: core: Wait for MHI READY state in most scenarios bus: mhi: core: Improve state strings for debug messages Carl Yin (1): bus: mhi: core: Add support for Flash Programmer execution environment drivers/bus/mhi/core/boot.c | 13 +++++++------ drivers/bus/mhi/core/init.c | 34 ++++++++++++++++++---------------- drivers/bus/mhi/core/internal.h | 4 +++- drivers/bus/mhi/core/main.c | 3 +++ drivers/bus/mhi/core/pm.c | 28 +++++++++++++++++++++++++--- include/linux/mhi.h | 4 +++- 6 files changed, 59 insertions(+), 27 deletions(-) -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project
