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mmc: sdhci: Do not unnecessarily enable wakeup for card detect interrupt

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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>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Adrian Hunter 2018-02-27 14:51:23 +02:00 committed by Ulf Hansson
parent 7b7d57fd1b
commit 9c316b38b7
1 changed files with 9 additions and 1 deletions
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10
drivers/mmc/host/sdhci.c
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@ -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) &&
!mmc_can_gpio_cd(host->mmc);
}
/*
* 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;
}