linux-kernel - [PATCH v2 2/2] net: wwan: mhi: make default data link id configurable

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Message-Id: <20240612093941.359904-1-slark_xiao@163.com>
Date: Wed, 12 Jun 2024 17:39:41 +0800
From: Slark Xiao <slark_xiao@....com>
To: manivannan.sadhasivam@...aro.org,
	loic.poulain@...aro.org,
	ryazanov.s.a@...il.com,
	johannes@...solutions.net,
	quic_jhugo@...cinc.com
Cc: netdev@...r.kernel.org,
	mhi@...ts.linux.dev,
	linux-arm-msm@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Slark Xiao <slark_xiao@....com>
Subject: [PATCH v2 2/2] net: wwan: mhi: make default data link id configurable

For SDX72 MBIM device, it starts data mux id from 112 instead of 0.
This would lead to device can't ping outside successfully.
Also MBIM side would report "bad packet session (112)".
So we add a link id default value for these SDX72 products which
works in MBIM mode.

Signed-off-by: Slark Xiao <slark_xiao@....com>
---
 drivers/net/wwan/mhi_wwan_mbim.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wwan/mhi_wwan_mbim.c b/drivers/net/wwan/mhi_wwan_mbim.c
index 3f72ae943b29..c731fe20814f 100644
--- a/drivers/net/wwan/mhi_wwan_mbim.c
+++ b/drivers/net/wwan/mhi_wwan_mbim.c
@@ -618,7 +618,8 @@ static int mhi_mbim_probe(struct mhi_device *mhi_dev, const struct mhi_device_id
 	mbim->rx_queue_sz = mhi_get_free_desc_count(mhi_dev, DMA_FROM_DEVICE);
 
 	/* Register wwan link ops with MHI controller representing WWAN instance */
-	return wwan_register_ops(&cntrl->mhi_dev->dev, &mhi_mbim_wwan_ops, mbim, 0);
+	return wwan_register_ops(&cntrl->mhi_dev->dev, &mhi_mbim_wwan_ops, mbim,
+		mhi_dev->mhi_cntrl->link_id);
 }
 
 static void mhi_mbim_remove(struct mhi_device *mhi_dev)
-- 
2.25.1