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From:   Bhaumik Bhatt <bbhatt@codeaurora.org>
To:     manivannan.sadhasivam@linaro.org
Cc:     linux-arm-msm@vger.kernel.org, hemantk@codeaurora.org,
        jhugo@codeaurora.org, linux-kernel@vger.kernel.org,
        carl.yin@quectel.com, naveen.kumar@quectel.com,
        loic.poulain@linaro.org, Bhaumik Bhatt <bbhatt@codeaurora.org>
Subject: [PATCH] bus: mhi: Make firmware image optional for controller
Date:   Tue,  9 Mar 2021 10:46:35 -0800
Message-Id: <1615315595-37750-1-git-send-email-bbhatt@codeaurora.org>
Precedence: bulk

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>
---
 include/linux/mhi.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/mhi.h b/include/linux/mhi.h
index 56c4c52..838a3c4 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)
-- 
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