[PATCH i2c-next v6] i2c: aspeed: Handle master/slave combined irq events properly

Cédric Le Goater clg at kaod.org
Fri Sep 14 15:38:37 AEST 2018


>>> That seems to suggest that none of the status bits auto-clears, and that
>>> the above code clearing intr_status should be removed entirely.
>>> Am I missing something ?
>>
>> You are right. I just pushed another version of the previous patch with this
>> new hunk :
>>
>> @@ -188,7 +200,6 @@ static void aspeed_i2c_bus_handle_cmd(As
>>   {
>>       bus->cmd &= ~0xFFFF;
>>       bus->cmd |= value & 0xFFFF;
>> -    bus->intr_status = 0;
>>         if (bus->cmd & I2CD_M_START_CMD) {
>>           uint8_t state = aspeed_i2c_get_state(bus) & I2CD_MACTIVE ?
>>
>>
>> The QEMU palmetto and witherspoon machines seem to behave fine. Can you give
>> it a try ?
>>
> 
> Works fine for me for all affected qemu platforms.
> 
> How do you want to proceed with the qemu patches ? I attached my patches
> for reference. Maybe you can add them to your tree if they are ok and submit
> the entire series together to the qemu mailing list ?

yes. They are pushed in my aspeed-3.1 branch. I will send the series 
on the list.

Thanks,

C. 




More information about the Linux-aspeed mailing list