Re: [PATCH v4 3/9] bus: mhi: Match devices exposing the protocol on the SAHARA channel
Kishore Batta <[email protected]> Mon, 13 Apr 2026 14:33:46 +0530
| Newsgroups | dev.linux.lists.mhi,org.freedesktop.lists.dri-devel,org.kernel.vger.linux-arm-msm,org.kernel.vger.linux-doc,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <[email protected]> |
On 4/10/2026 1:53 AM, Jeff Hugo wrote: > On 3/19/2026 12:31 AM, Kishore Batta wrote: >> Some Qualcomm devices expose the Sahara protocol on a generic SAHARA MHI >> channel rather than a QAIC specific channel name. As a result, the >> sahara > > "Sahara" ACK. I will correct in next version. > >> driver does not currently bind to such devices and never probes. >> >> Extend the MHI device ID match table to also match the SAHARA channel >> name. This allows the Sahara protocol driver to bind to devices that >> expose the protocol directly on a standard sahara MHI channel. > > "Sahara" ACK. I will correct in next version. > >> >> Signed-off-by: Kishore Batta <[email protected]> >> --- >> drivers/bus/mhi/sahara/sahara.c | 2 ++ >> 1 file changed, 2 insertions(+) >> >> diff --git a/drivers/bus/mhi/sahara/sahara.c >> b/drivers/bus/mhi/sahara/sahara.c >> index >> 8ff7b6425ac5423ef8f32117151dca10397686a8..e3499977e7c6b53bc624a8eb00d0636f2ea63307 >> 100644 >> --- a/drivers/bus/mhi/sahara/sahara.c >> +++ b/drivers/bus/mhi/sahara/sahara.c >> @@ -911,8 +911,10 @@ static void sahara_mhi_dl_xfer_cb(struct >> mhi_device *mhi_dev, struct mhi_result >> static const struct mhi_device_id sahara_mhi_match_table[] = { >> { .chan = "QAIC_SAHARA", }, >> + { .chan = "SAHARA"}, > > This doesn't work and breaks bisect. At this point Sahara will bind to > QDU100, ath12k, or something else but not know how to drive one of > those devices. > > Just add this when you add QDU100 support, which looks to be patch 5. ACK. I will add this in patch 5. > >> {}, >> }; >> +MODULE_DEVICE_TABLE(mhi, sahara_mhi_match_table); >> static struct mhi_driver sahara_mhi_driver = { >> .id_table = sahara_mhi_match_table, >> >