+ if (sts & SWRM_INTERRUPT_STATUS_CMD_ERROR) { + ctrl->reg_read(ctrl, SWRM_CMD_FIFO_STATUS, &value); + dev_err_ratelimited(ctrl->dev, + "CMD error, fifo status 0x%x\n", + value); + ctrl->reg_write(ctrl, SWRM_CMD_FIFO_CMD, 0x1); + }
+ if ((sts & SWRM_INTERRUPT_STATUS_NEW_SLAVE_ATTACHED) || + sts & SWRM_INTERRUPT_STATUS_CHANGE_ENUM_SLAVE_STATUS) + schedule_work(&ctrl->slave_work);
+ ctrl->reg_write(ctrl, SWRM_INTERRUPT_CLEAR, sts);
is it intentional to clear the interrupts first, before doing additional checks?
No, I can move it to right to the end!
Reason why I did this was that if we run complete() before irq is cleared complete might trigger another read/write which can raise an interrupt. And with interrupt status not cleared we might miss it. This is very much timing dependent specially with the threaded irq.
So code needs no change atm!
ok, a comment to keep track of this timing dependency could help future generations then...