Re: [PATCH v2 3/3] i2c: cadence: Check for errata condition involving master receive

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi,

On Fri, Dec 5, 2014 at 12:04 AM, Wolfram Sang <wsa@xxxxxxxxxxxxx> wrote:
>
>> +             /*
>> +              * This controller does not give completion interrupt after a
>> +              * master receive transfer if HOLD bit is set (repeated start),
>> +              * resulting in SW timeout. Hence, if a receive transfer is
>> +              * followed by any other transfer, an error is returned
>> +              * indicating that this sequence is not supported.
>> +              */
>> +             for (count = 0; count < num-1; count++) {
>> +                     if (msgs[count].flags & I2C_M_RD)
>> +                             return -EOPNOTSUPP;
>> +             }
>
> Yeah, a lot better. Probably it would be good to inform the user with a
> warning what went wrong?
>

Sure. I'll add that.

Regards,
Harini
--
To unsubscribe from this list: send the line "unsubscribe linux-i2c" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux GPIO]     [Linux SPI]     [Linux Hardward Monitoring]     [LM Sensors]     [Linux USB Devel]     [Linux Media]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux