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Commit 22606405 authored by Pierre Ossman's avatar Pierre Ossman
Browse files

sdhci: more complex quirks handling 



Extend the quirks handling in the PCI driver to be able to have
callbacks and not just flags.

Signed-off-by: default avatarPierre Ossman <drzeus@drzeus.cx>
parent 3815a0eb

drivers/mmc/host/sdhci-pci.c

+86 −43
Original line number Diff line number Diff line
@@ -38,21 +38,82 @@ 


#define MAX_SLOTS			8



static const struct pci_device_id pci_ids[] __devinitdata = {

struct sdhci_pci_chip;



struct sdhci_pci_fixes {

	unsigned int		quirks;



	int			(*probe)(struct sdhci_pci_chip*);

};



struct sdhci_pci_slot {

	struct sdhci_pci_chip	*chip;

	struct sdhci_host	*host;



	int			pci_bar;

};



struct sdhci_pci_chip {

	struct pci_dev		*pdev;



	unsigned int		quirks;

	const struct sdhci_pci_fixes *fixes;



	int			num_slots;	/* Slots on controller */

	struct sdhci_pci_slot	*slots[MAX_SLOTS]; /* Pointers to host slots */

};





/*****************************************************************************\

 *                                                                           *

 * Hardware specific quirk handling                                          *

 *                                                                           *

\*****************************************************************************/



static int ricoh_probe(struct sdhci_pci_chip *chip)

{

		.vendor		= PCI_VENDOR_ID_RICOH,

		.device		= PCI_DEVICE_ID_RICOH_R5C822,

		.subvendor	= PCI_VENDOR_ID_IBM,

		.subdevice	= PCI_ANY_ID,

		.driver_data	= SDHCI_QUIRK_CLOCK_BEFORE_RESET,

	},

	if (chip->pdev->subsystem_vendor == PCI_VENDOR_ID_IBM)

		chip->quirks |= SDHCI_QUIRK_CLOCK_BEFORE_RESET;



	if (chip->pdev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG)

		chip->quirks |= SDHCI_QUIRK_NO_CARD_NO_RESET;



	return 0;

}



static const struct sdhci_pci_fixes sdhci_ricoh = {

	.probe		= ricoh_probe,

};



static const struct sdhci_pci_fixes sdhci_ene_712 = {

	.quirks		= SDHCI_QUIRK_SINGLE_POWER_WRITE |

			  SDHCI_QUIRK_BROKEN_DMA,

};



static const struct sdhci_pci_fixes sdhci_ene_714 = {

	.quirks		= SDHCI_QUIRK_SINGLE_POWER_WRITE |

			  SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS |

			  SDHCI_QUIRK_BROKEN_DMA,

};



static const struct sdhci_pci_fixes sdhci_cafe = {

	.quirks		= SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER |

			  SDHCI_QUIRK_INCR_TIMEOUT_CONTROL,

};



static const struct sdhci_pci_fixes sdhci_jmicron = {

	.quirks		= SDHCI_QUIRK_32BIT_DMA_ADDR |

			  SDHCI_QUIRK_32BIT_DMA_SIZE |

			  SDHCI_QUIRK_RESET_AFTER_REQUEST,

};



static const struct pci_device_id pci_ids[] __devinitdata = {

	{

		.vendor		= PCI_VENDOR_ID_RICOH,

		.device		= PCI_DEVICE_ID_RICOH_R5C822,

		.subvendor	= PCI_VENDOR_ID_SAMSUNG,

		.subvendor	= PCI_ANY_ID,

		.subdevice	= PCI_ANY_ID,

		.driver_data	= SDHCI_QUIRK_NO_CARD_NO_RESET,

		.driver_data	= (kernel_ulong_t)&sdhci_ricoh,

	},



	{
@@ -60,8 +121,7 @@ static const struct pci_device_id pci_ids[] __devinitdata = { 
		.device		= PCI_DEVICE_ID_ENE_CB712_SD,

		.subvendor	= PCI_ANY_ID,

		.subdevice	= PCI_ANY_ID,

		.driver_data	= SDHCI_QUIRK_SINGLE_POWER_WRITE |

				  SDHCI_QUIRK_BROKEN_DMA,

		.driver_data	= (kernel_ulong_t)&sdhci_ene_712,

	},



	{
@@ -69,8 +129,7 @@ static const struct pci_device_id pci_ids[] __devinitdata = { 
		.device		= PCI_DEVICE_ID_ENE_CB712_SD_2,

		.subvendor	= PCI_ANY_ID,

		.subdevice	= PCI_ANY_ID,

		.driver_data	= SDHCI_QUIRK_SINGLE_POWER_WRITE |

				  SDHCI_QUIRK_BROKEN_DMA,

		.driver_data	= (kernel_ulong_t)&sdhci_ene_712,

	},



	{
@@ -78,9 +137,7 @@ static const struct pci_device_id pci_ids[] __devinitdata = { 
		.device		= PCI_DEVICE_ID_ENE_CB714_SD,

		.subvendor	= PCI_ANY_ID,

		.subdevice	= PCI_ANY_ID,

		.driver_data	= SDHCI_QUIRK_SINGLE_POWER_WRITE |

				  SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS |

				  SDHCI_QUIRK_BROKEN_DMA,

		.driver_data	= (kernel_ulong_t)&sdhci_ene_714,

	},



	{
@@ -88,9 +145,7 @@ static const struct pci_device_id pci_ids[] __devinitdata = { 
		.device		= PCI_DEVICE_ID_ENE_CB714_SD_2,

		.subvendor	= PCI_ANY_ID,

		.subdevice	= PCI_ANY_ID,

		.driver_data	= SDHCI_QUIRK_SINGLE_POWER_WRITE |

				  SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS |

				  SDHCI_QUIRK_BROKEN_DMA,

		.driver_data	= (kernel_ulong_t)&sdhci_ene_714,

	},



	{
@@ -98,8 +153,7 @@ static const struct pci_device_id pci_ids[] __devinitdata = { 
		.device         = PCI_DEVICE_ID_MARVELL_CAFE_SD,

		.subvendor      = PCI_ANY_ID,

		.subdevice      = PCI_ANY_ID,

		.driver_data    = SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER |

				  SDHCI_QUIRK_INCR_TIMEOUT_CONTROL,

		.driver_data    = (kernel_ulong_t)&sdhci_cafe,

	},



	{
@@ -107,9 +161,7 @@ static const struct pci_device_id pci_ids[] __devinitdata = { 
		.device		= PCI_DEVICE_ID_JMICRON_JMB38X_SD,

		.subvendor	= PCI_ANY_ID,

		.subdevice	= PCI_ANY_ID,

		.driver_data	= SDHCI_QUIRK_32BIT_DMA_ADDR |

				  SDHCI_QUIRK_32BIT_DMA_SIZE |

				  SDHCI_QUIRK_RESET_AFTER_REQUEST,

		.driver_data	= (kernel_ulong_t)&sdhci_jmicron,

	},



	{	/* Generic SD host controller */
@@ -121,23 +173,6 @@ static const struct pci_device_id pci_ids[] __devinitdata = { 


MODULE_DEVICE_TABLE(pci, pci_ids);



struct sdhci_pci_chip;



struct sdhci_pci_slot {

	struct sdhci_pci_chip	*chip;

	struct sdhci_host	*host;



	int			pci_bar;

};



struct sdhci_pci_chip {

	struct pci_dev		*pdev;

	unsigned int		 quirks;



	int			num_slots;	/* Slots on controller */

	struct sdhci_pci_slot	*slots[MAX_SLOTS]; /* Pointers to host slots */

};



/*****************************************************************************\

 *                                                                           *

 * SDHCI core callbacks                                                      *
@@ -389,11 +424,19 @@ static int __devinit sdhci_pci_probe(struct pci_dev *pdev, 
	}



	chip->pdev = pdev;

	chip->quirks = ent->driver_data;

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

	if (chip->fixes)

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

	chip->num_slots = slots;



	pci_set_drvdata(pdev, chip);



	if (chip->fixes && chip->fixes->probe) {

		ret = chip->fixes->probe(chip);

		if (ret)

			goto free;

	}



	for (i = 0;i < slots;i++) {

		slot = sdhci_pci_probe_slot(pdev, chip, first_bar + i);

		if (IS_ERR(slot)) {