Commit 4d5f5283 authored Mar 09, 2021 by Bhaumik Bhatt Committed by Manivannan Sadhasivam Mar 10, 2021

bus: mhi: Make firmware image optional for controller

Some controllers can opt to not have MHI download a firmware
image to have the device bootup and can find the device in a
pass through execution environment, ready to go. Thus, MHI
controllers for those devices do not need fw_image defined.
Make it optional to accommodate different bootup modes.

Suggested-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Bhaumik Bhatt <bbhatt@codeaurora.org>
Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/1615315595-37750-1-git-send-email-bbhatt@codeaurora.org

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>

parent 6403298c

include/linux/mhi.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -296,7 +296,7 @@ struct mhi_controller_config {
		* @wake_db: MHI WAKE doorbell register address
		* @iova_start: IOMMU starting address for data (required)
		* @iova_stop: IOMMU stop address for data (required)
		* @fw_image: Firmware image name for normal booting (required)
		* @fw_image: Firmware image name for normal booting (optional)
		* @edl_image: Firmware image name for emergency download mode (optional)
		* @rddm_size: RAM dump size that host should allocate for debugging purpose
		* @sbl_size: SBL image size downloaded through BHIe (optional)