Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit df673b22 authored by Pierre Ossman's avatar Pierre Ossman Committed by Russell King
Browse files

[MMC] sdhci: support controller specific quirks 



As some specific controllers will have bugs, we need a way to map special
behaviour to certain hardware.

Signed-off-by: default avatarPierre Ossman <drzeus@drzeus.cx>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 67435274

drivers/mmc/sdhci.c

+7 −0
Original line number Diff line number Diff line
@@ -30,6 +30,7 @@ 


static unsigned int debug_nodma = 0;

static unsigned int debug_forcedma = 0;

static unsigned int debug_quirks = 0;



static const struct pci_device_id pci_ids[] __devinitdata = {

	/* handle any SD host controller */
@@ -1373,6 +1374,10 @@ static int __devinit sdhci_probe(struct pci_dev *pdev, 
	}



	chip->pdev = pdev;

	chip->quirks = ent->driver_data;



	if (debug_quirks)

		chip->quirks = debug_quirks;



	chip->num_slots = slots;

	pci_set_drvdata(pdev, chip);
@@ -1453,6 +1458,7 @@ module_exit(sdhci_drv_exit); 


module_param(debug_nodma, uint, 0444);

module_param(debug_forcedma, uint, 0444);

module_param(debug_quirks, uint, 0444);



MODULE_AUTHOR("Pierre Ossman <drzeus@drzeus.cx>");

MODULE_DESCRIPTION("Secure Digital Host Controller Interface driver");
@@ -1461,3 +1467,4 @@ MODULE_LICENSE("GPL"); 


MODULE_PARM_DESC(debug_nodma, "Forcefully disable DMA transfers. (default 0)");

MODULE_PARM_DESC(debug_forcedma, "Forcefully enable DMA transfers. (default 0)");

MODULE_PARM_DESC(debug_quirks, "Force certain quirks.");

drivers/mmc/sdhci.h

+2 −0
Original line number Diff line number Diff line
@@ -204,6 +204,8 @@ struct sdhci_host { 
struct sdhci_chip {

	struct pci_dev		*pdev;



	unsigned long		quirks;



	int			num_slots;	/* Slots on controller */

	struct sdhci_host	*hosts[0];	/* Pointers to hosts */

};