| Message ID | 1518612992-4951-2-git-send-email-adrian.hunter@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 14 February 2018 at 13:56, Adrian Hunter <adrian.hunter@intel.com> wrote: > Do not unnecessarily enable card detect wakeup in the cases that the card > is not removable or a GPIO is used for card detect. > > Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> > --- > drivers/mmc/host/sdhci.c | 10 +++++++++- > 1 file changed, 9 insertions(+), 1 deletion(-) > > diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c > index 2020e57ffa7e..c2653347bb5e 100644 > --- a/drivers/mmc/host/sdhci.c > +++ b/drivers/mmc/host/sdhci.c > @@ -2899,6 +2899,14 @@ static irqreturn_t sdhci_thread_irq(int irq, void *dev_id) > \*****************************************************************************/ > > #ifdef CONFIG_PM > + > +static bool sdhci_cd_irq_can_wakeup(struct sdhci_host *host) > +{ > + return mmc_card_is_removable(host->mmc) && > + !(host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) && > + host->mmc->slot.cd_irq < 0; We have mmc_can_gpio_cd(), I guess it it should be sufficient to add that check!? > +} > + > /* > * To enable wakeup events, the corresponding events have to be enabled in > * the Interrupt Status Enable register too. See 'Table 1-6: Wakeup Signal > @@ -2915,7 +2923,7 @@ static bool sdhci_enable_irq_wakeups(struct sdhci_host *host) > u8 wake_val = 0; > u8 val; > > - if (!(host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION)) { > + if (sdhci_cd_irq_can_wakeup(host)) { > wake_val |= SDHCI_WAKE_ON_INSERT | SDHCI_WAKE_ON_REMOVE; > irq_val |= SDHCI_INT_CARD_INSERT | SDHCI_INT_CARD_REMOVE; > } > -- > 1.9.1 > Kind regards Uffe -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On 27/02/18 10:14, Ulf Hansson wrote: > On 14 February 2018 at 13:56, Adrian Hunter <adrian.hunter@intel.com> wrote: >> Do not unnecessarily enable card detect wakeup in the cases that the card >> is not removable or a GPIO is used for card detect. >> >> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> >> --- >> drivers/mmc/host/sdhci.c | 10 +++++++++- >> 1 file changed, 9 insertions(+), 1 deletion(-) >> >> diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c >> index 2020e57ffa7e..c2653347bb5e 100644 >> --- a/drivers/mmc/host/sdhci.c >> +++ b/drivers/mmc/host/sdhci.c >> @@ -2899,6 +2899,14 @@ static irqreturn_t sdhci_thread_irq(int irq, void *dev_id) >> \*****************************************************************************/ >> >> #ifdef CONFIG_PM >> + >> +static bool sdhci_cd_irq_can_wakeup(struct sdhci_host *host) >> +{ >> + return mmc_card_is_removable(host->mmc) && >> + !(host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) && >> + host->mmc->slot.cd_irq < 0; > > We have mmc_can_gpio_cd(), I guess it it should be sufficient to add > that check!? Can substitute mmc_can_gpio_cd() for 'host->mmc->slot.cd_irq < 0'. The other checks are needed. > >> +} >> + >> /* >> * To enable wakeup events, the corresponding events have to be enabled in >> * the Interrupt Status Enable register too. See 'Table 1-6: Wakeup Signal >> @@ -2915,7 +2923,7 @@ static bool sdhci_enable_irq_wakeups(struct sdhci_host *host) >> u8 wake_val = 0; >> u8 val; >> >> - if (!(host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION)) { >> + if (sdhci_cd_irq_can_wakeup(host)) { >> wake_val |= SDHCI_WAKE_ON_INSERT | SDHCI_WAKE_ON_REMOVE; >> irq_val |= SDHCI_INT_CARD_INSERT | SDHCI_INT_CARD_REMOVE; >> } >> -- >> 1.9.1 >> > > Kind regards > Uffe > -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 2020e57ffa7e..c2653347bb5e 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -2899,6 +2899,14 @@ static irqreturn_t sdhci_thread_irq(int irq, void *dev_id) \*****************************************************************************/ #ifdef CONFIG_PM + +static bool sdhci_cd_irq_can_wakeup(struct sdhci_host *host) +{ + return mmc_card_is_removable(host->mmc) && + !(host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) && + host->mmc->slot.cd_irq < 0; +} + /* * To enable wakeup events, the corresponding events have to be enabled in * the Interrupt Status Enable register too. See 'Table 1-6: Wakeup Signal @@ -2915,7 +2923,7 @@ static bool sdhci_enable_irq_wakeups(struct sdhci_host *host) u8 wake_val = 0; u8 val; - if (!(host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION)) { + if (sdhci_cd_irq_can_wakeup(host)) { wake_val |= SDHCI_WAKE_ON_INSERT | SDHCI_WAKE_ON_REMOVE; irq_val |= SDHCI_INT_CARD_INSERT | SDHCI_INT_CARD_REMOVE; }
Do not unnecessarily enable card detect wakeup in the cases that the card is not removable or a GPIO is used for card detect. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> --- drivers/mmc/host/sdhci.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-)