Hi Wolfram-san,
> From: Yoshihiro Shimoda, Sent: Tuesday, December 15, 2020 2:03 PM
<snip>
> I'm sorry again and again. But, I realized the current patch breaks
> "force_pio" mode because tmio_mmc_pio_irq() doesn't take care of {pre,post}_req.
> So, I'll try to refactor tmio core to support {pre,post}_req().
I'm sorry. My fault injection code is bad. In other words, we don't need
to refactor tmio core.
I had added "goto force_pio;" in renesas_sdhi_internal_dmac_start_dma() yesterday.
However, I should have added "goto force_pio_with_unmap;" instead.
Otherwise, the driver unmaps the buffer after pio finished so that reading data
by pio was invalidated by dma_unmap_sg().
So, I'll submit v2 patch later.
Best regards,
Yoshihiro Shimoda
