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Commit 9c316b38 authored by Adrian Hunter's avatar Adrian Hunter Committed by Ulf Hansson
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mmc: sdhci: Do not unnecessarily enable wakeup for card detect interrupt 



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: default avatarAdrian Hunter <adrian.hunter@intel.com>
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 7b7d57fd

drivers/mmc/host/sdhci.c

+9 −1
Original line number Diff line number Diff line
@@ -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;

	}