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Commit 104d337c authored by Anjana Hari's avatar Anjana Hari
Browse files

mmc: sdhci-msm: Add hibernation callbacks 



Add freeze and thaw callbacks to handle suspend
to disk scenario. Also add logic to restore card
detection IRQ in restore path.

Change-Id: I50c64b0cc12dd89dfb886c8519520d62771114b9
Signed-off-by: default avatarAnjana Hari <ahari@codeaurora.org>
parent 40bce510

drivers/mmc/host/sdhci-msm.c

+17 −0
Original line number Diff line number Diff line
@@ -5559,6 +5559,19 @@ static int sdhci_msm_suspend_noirq(struct device *dev) 
	return ret;

}



static int sdhci_msm_freeze(struct device *dev)

{

	struct sdhci_host *host = dev_get_drvdata(dev);

	struct mmc_host *mmc = host->mmc;

	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);

	struct sdhci_msm_host *msm_host = pltfm_host->priv;



	if (gpio_is_valid(msm_host->pdata->status_gpio) &&

			(msm_host->mmc->slot.cd_irq >= 0))

		mmc_gpiod_free_cd_irq(mmc);

	return 0;

}



static int sdhci_msm_restore(struct device *dev)

{

	struct sdhci_host *host = dev_get_drvdata(dev);
@@ -5567,6 +5580,8 @@ static int sdhci_msm_restore(struct device *dev) 
	if (mmc->inlinecrypt_support)

		mmc->inlinecrypt_reset_needed = true;



	mmc_gpiod_restore_cd_irq(mmc);



	return 0;

}
@@ -5576,7 +5591,9 @@ static const struct dev_pm_ops sdhci_msm_pmops = { 
	.runtime_suspend	= sdhci_msm_runtime_suspend,

	.runtime_resume		= sdhci_msm_runtime_resume,

	.suspend_noirq		= sdhci_msm_suspend_noirq,

	.freeze			= sdhci_msm_freeze,

	.restore		= sdhci_msm_restore,

	.thaw			= sdhci_msm_restore,

};



#define SDHCI_MSM_PMOPS (&sdhci_msm_pmops)