On 12/2/21 5:35 AM, Manivannan Sadhasivam wrote:
This commit adds support for registering MHI endpoint client drivers
with the MHI endpoint stack. MHI endpoint client drivers binds to one
or more MHI endpoint devices inorder to send and receive the upper-layer
protocol packets like IP packets, modem control messages, and diagnostics
messages over MHI bus.
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
---
drivers/bus/mhi/ep/main.c | 85 +++++++++++++++++++++++++++++++++++++++
include/linux/mhi_ep.h | 53 ++++++++++++++++++++++++
2 files changed, 138 insertions(+)
diff --git a/drivers/bus/mhi/ep/main.c b/drivers/bus/mhi/ep/main.c
index db664360c8ab..ce0f99f22058 100644
--- a/drivers/bus/mhi/ep/main.c
+++ b/drivers/bus/mhi/ep/main.c
@@ -193,9 +193,88 @@ void mhi_ep_unregister_controller(struct mhi_ep_cntrl *mhi_cntrl)
}
EXPORT_SYMBOL_GPL(mhi_ep_unregister_controller);
+static int mhi_ep_driver_probe(struct device *dev)
+{
+ struct mhi_ep_device *mhi_dev = to_mhi_ep_device(dev);
+ struct mhi_ep_driver *mhi_drv = to_mhi_ep_driver(dev->driver);
+ struct mhi_ep_chan *ul_chan = mhi_dev->ul_chan;
+ struct mhi_ep_chan *dl_chan = mhi_dev->dl_chan;
+
Either ul_chan or dl_chan must be set, right? Check this.
Otherwise I think this looks OK.
-Alex
+ if (ul_chan)
+ ul_chan->xfer_cb = mhi_drv->ul_xfer_cb;
+
+ if (dl_chan)
+ dl_chan->xfer_cb = mhi_drv->dl_xfer_cb;
+
+ return mhi_drv->probe(mhi_dev, mhi_dev->id);
+}
. . .
