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authorBhaumik Bhatt <bbhatt@codeaurora.org>2021-03-09 19:46:35 +0100
committerManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>2021-03-10 15:41:22 +0100
commit4d5f52838d11981c4d76cdc4e73230120de1ac85 (patch)
treeb1e1bd6a34d1067230e3786c61ff0eeb81b64986 /include
parentbus: mhi: core: Fix check for syserr at power_up (diff)
downloadlinux-4d5f52838d11981c4d76cdc4e73230120de1ac85.tar.xz
linux-4d5f52838d11981c4d76cdc4e73230120de1ac85.zip
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>
Diffstat (limited to 'include')
-rw-r--r--include/linux/mhi.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/mhi.h b/include/linux/mhi.h
index d26acc8b21cd..8f5bf409f663 100644
--- a/include/linux/mhi.h
+++ b/include/linux/mhi.h
@@ -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)