Re: [PATCH v4 3/9] bus: mhi: Match devices exposing the protocol on the SAHARA channel

[Kishore Batta <kishore.batta@oss.qualcomm.com>]

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 <kishore.batta@oss.qualcomm.com>
>> ---
>>   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,
>>
>