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SubjectRe: [PATCH v5 4/4] mmc: host: sdhci: Add a variable to defer to complete data requests if needed
On Fri, 8 Nov 2019 at 19:24, Adrian Hunter <adrian.hunter@intel.com> wrote:
>
> On 8/11/19 1:08 PM, Baolin Wang wrote:
> > On 06/11/2019, Baolin Wang <baolin.wang@linaro.org> wrote:
> >> On Wed, 6 Nov 2019 at 20:02, Adrian Hunter <adrian.hunter@intel.com> wrote:
> >>>
> >>> To move ahead in the meantime without a new host API, just defer always
> >
> > Before new version, I want to make things clear in case I
> > misunderstood your points, so you mean I should set always_defer_done
> > = true for our Spreadtrum host driver in this patch? Or just like
> > below patch? Thanks.
> >
> > diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
> > index 850241f..4bef066 100644
> > --- a/drivers/mmc/host/sdhci.c
> > +++ b/drivers/mmc/host/sdhci.c
> > @@ -3035,7 +3035,7 @@ static inline bool sdhci_defer_done(struct
> > sdhci_host *host,
> > {
> > struct mmc_data *data = mrq->data;
> >
> > - return host->pending_reset ||
> > + return host->pending_reset || host->always_defer_done ||
> > ((host->flags & SDHCI_REQ_USE_DMA) && data &&
> > data->host_cookie == COOKIE_MAPPED);
> > }
> > diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
> > index d89cdb9..a73ce89 100644
> > --- a/drivers/mmc/host/sdhci.h
> > +++ b/drivers/mmc/host/sdhci.h
> > @@ -533,6 +533,7 @@ struct sdhci_host {
> > bool pending_reset; /* Cmd/data reset is pending */
> > bool irq_wake_enabled; /* IRQ wakeup is enabled */
> > bool v4_mode; /* Host Version 4 Enable */
> > + bool always_defer_done; /* Always defer to complete requests */
> >
> > struct mmc_request *mrqs_done[SDHCI_MAX_MRQS]; /* Requests done */
> > struct mmc_command *cmd; /* Current command */
> >
>
> Yes

Got it. Thanks for your confirming.

--
Baolin Wang
Best Regards

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