linux-kernel - [PATCH 4/5] net: qrtr: Start MHI channels during init

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Message-Id: <20200927033652.11789-5-manivannan.sadhasivam@linaro.org>
Date:   Sun, 27 Sep 2020 09:06:51 +0530
From:   Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To:     gregkh@...uxfoundation.org
Cc:     hemantk@...eaurora.org, bbhatt@...eaurora.org,
        linux-arm-msm@...r.kernel.org, jhugo@...eaurora.org,
        linux-kernel@...r.kernel.org,
        Loic Poulain <loic.poulain@...aro.org>,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Subject: [PATCH 4/5] net: qrtr: Start MHI channels during init

From: Loic Poulain <loic.poulain@...aro.org>

Start MHI device channels so that transfers can be performed.
The MHI stack does not auto-start channels anymore.

Signed-off-by: Loic Poulain <loic.poulain@...aro.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Acked-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
---
 net/qrtr/mhi.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/net/qrtr/mhi.c b/net/qrtr/mhi.c
index ff0c41467fc1..7100f0bac4c6 100644
--- a/net/qrtr/mhi.c
+++ b/net/qrtr/mhi.c
@@ -76,6 +76,11 @@ static int qcom_mhi_qrtr_probe(struct mhi_device *mhi_dev,
 	struct qrtr_mhi_dev *qdev;
 	int rc;
 
+	/* start channels */
+	rc = mhi_prepare_for_transfer(mhi_dev);
+	if (rc)
+		return rc;
+
 	qdev = devm_kzalloc(&mhi_dev->dev, sizeof(*qdev), GFP_KERNEL);
 	if (!qdev)
 		return -ENOMEM;
-- 
2.17.1