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mmc: sdhci-pci: add platform data

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Add a means of getting platform data for the SDHCI PCI
devices.  The data is stored against the slot not the
device in order to support multi-slot devices.

The data allows platform-specific setup (such as getting
GPIO numbers from firmware or setting up wl12xx for SDIO)
to be done in platform support files instead of the
sdhci-pci driver.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
Adrian Hunter
2011-12-27 15:48:43 +02:00
committed by Chris Ball
parent c79396c191
commit 52c506f0bc
6 changed files with 54 additions and 7 deletions
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18
include/linux/mmc/sdhci-pci-data.h Normal file
View File

@@ -0,0 +1,18 @@
#ifndef LINUX_MMC_SDHCI_PCI_DATA_H
#define LINUX_MMC_SDHCI_PCI_DATA_H
struct pci_dev;
struct sdhci_pci_data {
struct pci_dev *pdev;
int slotno;
int rst_n_gpio; /* Set to -EINVAL if unused */
int cd_gpio; /* Set to -EINVAL if unused */
int (*setup)(struct sdhci_pci_data *data);
void (*cleanup)(struct sdhci_pci_data *data);
};
extern struct sdhci_pci_data *(*sdhci_pci_get_data)(struct pci_dev *pdev,
int slotno);
#endif