Commit c43fd774 authored by Adrian Hunter's avatar Adrian Hunter Committed by Chris Ball
Browse files

mmc: sdhci-pci: add flag for devices that can support runtime PM 



Only allow runtime PM for devices that specifically indicate
that they support it.

Signed-off-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
Signed-off-by: default avatarChris Ball <cjb@laptop.org>
parent e840ce13

drivers/mmc/host/sdhci-pci.c

+13 −4
Original line number Diff line number Diff line
@@ -47,6 +47,7 @@ struct sdhci_pci_slot; 


struct sdhci_pci_fixes {

	unsigned int		quirks;

	bool			allow_runtime_pm;



	int			(*probe) (struct sdhci_pci_chip *);
@@ -72,6 +73,7 @@ struct sdhci_pci_chip { 
	struct pci_dev		*pdev;



	unsigned int		quirks;

	bool			allow_runtime_pm;

	const struct sdhci_pci_fixes *fixes;



	int			num_slots;	/* Slots on controller */
@@ -305,16 +307,19 @@ static const struct sdhci_pci_fixes sdhci_intel_mrst_hc1_hc2 = { 


static const struct sdhci_pci_fixes sdhci_intel_mfd_sd = {

	.quirks		= SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,

	.allow_runtime_pm = true,

	.probe_slot	= mfd_sd_probe_slot,

	.remove_slot	= mfd_sd_remove_slot,

};



static const struct sdhci_pci_fixes sdhci_intel_mfd_sdio = {

	.quirks		= SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,

	.allow_runtime_pm = true,

};



static const struct sdhci_pci_fixes sdhci_intel_mfd_emmc = {

	.quirks		= SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,

	.allow_runtime_pm = true,

	.probe_slot	= mfd_emmc_probe_slot,

	.remove_slot	= mfd_emmc_remove_slot,

};
@@ -1355,8 +1360,10 @@ static int __devinit sdhci_pci_probe(struct pci_dev *pdev, 


	chip->pdev = pdev;

	chip->fixes = (const struct sdhci_pci_fixes *)ent->driver_data;

	if (chip->fixes)

	if (chip->fixes) {

		chip->quirks = chip->fixes->quirks;

		chip->allow_runtime_pm = chip->fixes->allow_runtime_pm;

	}

	chip->num_slots = slots;



	pci_set_drvdata(pdev, chip);
@@ -1381,6 +1388,7 @@ static int __devinit sdhci_pci_probe(struct pci_dev *pdev, 
		chip->slots[i] = slot;

	}



	if (chip->allow_runtime_pm)

		sdhci_pci_runtime_pm_allow(&pdev->dev);



	return 0;
@@ -1399,11 +1407,12 @@ static void __devexit sdhci_pci_remove(struct pci_dev *pdev) 
	int i;

	struct sdhci_pci_chip *chip;



	sdhci_pci_runtime_pm_forbid(&pdev->dev);



	chip = pci_get_drvdata(pdev);



	if (chip) {

		if (chip->allow_runtime_pm)

			sdhci_pci_runtime_pm_forbid(&pdev->dev);



		for (i = 0; i < chip->num_slots; i++)

			sdhci_pci_remove_slot(chip->slots[i]);