Design changes prompted redefinition of the FATAL and SYSTEM ERROR callbacks such that FATAL ERROR should be treated as a callback arriving from an atomic or interrupt context and taken as an indication that the device has reset to one of the PBL execution environments. Whereas, a SYSTEM ERROR (SYS_ERROR) callback is sleep-capable and allowed to block such that the controller can pursue its clean-up before core driver handles further processing. Updated documentation for the same. Signed-off-by: Bhaumik Bhatt <bbhatt@xxxxxxxxxxxxxx> --- include/linux/mhi.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/mhi.h b/include/linux/mhi.h index b8ca694..a8b2c25 100644 --- a/include/linux/mhi.h +++ b/include/linux/mhi.h @@ -31,8 +31,8 @@ struct mhi_buf_info; * @MHI_CB_LPM_EXIT: MHI host about to exit low power mode * @MHI_CB_EE_RDDM: MHI device entered RDDM exec env * @MHI_CB_EE_MISSION_MODE: MHI device entered Mission Mode exec env - * @MHI_CB_SYS_ERROR: MHI device entered error state (may recover) - * @MHI_CB_FATAL_ERROR: MHI device entered fatal error state + * @MHI_CB_SYS_ERROR: MHI device entered error state (uses non-atomic context) + * @MHI_CB_FATAL_ERROR: MHI device reset to a PBL exec env (uses atomic context) * @MHI_CB_BW_REQ: Received a bandwidth switch request from device */ enum mhi_callback { -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project