[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: Pierre Ossman <drzeus@drzeus.cx> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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@ -30,6 +30,7 @@
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static unsigned int debug_nodma = 0;
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static unsigned int debug_forcedma = 0;
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static unsigned int debug_quirks = 0;
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static const struct pci_device_id pci_ids[] __devinitdata = {
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/* handle any SD host controller */
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@ -1373,6 +1374,10 @@ static int __devinit sdhci_probe(struct pci_dev *pdev,
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}
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chip->pdev = pdev;
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chip->quirks = ent->driver_data;
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if (debug_quirks)
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chip->quirks = debug_quirks;
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chip->num_slots = slots;
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pci_set_drvdata(pdev, chip);
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@ -1453,6 +1458,7 @@ module_exit(sdhci_drv_exit);
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module_param(debug_nodma, uint, 0444);
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module_param(debug_forcedma, uint, 0444);
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module_param(debug_quirks, uint, 0444);
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MODULE_AUTHOR("Pierre Ossman <drzeus@drzeus.cx>");
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MODULE_DESCRIPTION("Secure Digital Host Controller Interface driver");
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@ -1461,3 +1467,4 @@ MODULE_LICENSE("GPL");
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MODULE_PARM_DESC(debug_nodma, "Forcefully disable DMA transfers. (default 0)");
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MODULE_PARM_DESC(debug_forcedma, "Forcefully enable DMA transfers. (default 0)");
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MODULE_PARM_DESC(debug_quirks, "Force certain quirks.");
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@ -204,6 +204,8 @@ struct sdhci_host {
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struct sdhci_chip {
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struct pci_dev *pdev;
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unsigned long quirks;
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int num_slots; /* Slots on controller */
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struct sdhci_host *hosts[0]; /* Pointers to hosts */
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};
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