[Linux-stm32] [PATCH v3 10/10] mmc: mmci: Add busydetect timeout

[Ulf Hansson]

On Wed, 14 Jun 2023 at 13:17, Linus Walleij <linus.walleij at linaro.org> wrote:
>
> On Wed, Jun 14, 2023 at 12:05 PM Ulf Hansson <ulf.hansson at linaro.org> wrote:
>
> > However, we use the spin_lock to protect some members in the struct
> > mmci_host. In this case, the mmci_cmd_irq() is using "host->cmd" to
> > understand whether there is an active command to manage. When the
> > command has been completed, we set host->cmd to NULL.
>
> Hm right...
>
> I'm leaning toward some catch-all like:
>
> if (!host->cmd)
>   state = MMCI_BUSY_DONE;
>
> as if there is no command going on then surely nothing is busy on the
> host controller.

Right, so at what point do you want to add this check?

Kind regards
Uffe