Commit 52c506f0 authored by Adrian Hunter's avatar Adrian Hunter Committed by Chris Ball
Browse files

mmc: sdhci-pci: add platform data 



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: default avatarAdrian Hunter <adrian.hunter@intel.com>
Signed-off-by: default avatarChris Ball <cjb@laptop.org>
parent c79396c1

drivers/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -97,7 +97,7 @@ obj-$(CONFIG_EISA) += eisa/ 
obj-y				+= lguest/

obj-$(CONFIG_CPU_FREQ)		+= cpufreq/

obj-$(CONFIG_CPU_IDLE)		+= cpuidle/

obj-$(CONFIG_MMC)		+= mmc/

obj-y				+= mmc/

obj-$(CONFIG_MEMSTICK)		+= memstick/

obj-y				+= leds/

obj-$(CONFIG_INFINIBAND)	+= infiniband/

drivers/mmc/Makefile

+1 −2
Original line number Diff line number Diff line
@@ -6,5 +6,4 @@ subdir-ccflags-$(CONFIG_MMC_DEBUG) := -DDEBUG 


obj-$(CONFIG_MMC)		+= core/

obj-$(CONFIG_MMC)		+= card/

obj-$(CONFIG_MMC)		+= host/

obj-$(subst m,y,$(CONFIG_MMC))	+= host/

drivers/mmc/host/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -9,6 +9,7 @@ obj-$(CONFIG_MMC_MXC) += mxcmmc.o 
obj-$(CONFIG_MMC_MXS)		+= mxs-mmc.o

obj-$(CONFIG_MMC_SDHCI)		+= sdhci.o

obj-$(CONFIG_MMC_SDHCI_PCI)	+= sdhci-pci.o

obj-$(subst m,y,$(CONFIG_MMC_SDHCI_PCI))	+= sdhci-pci-data.o

obj-$(CONFIG_MMC_SDHCI_PXAV3)	+= sdhci-pxav3.o

obj-$(CONFIG_MMC_SDHCI_PXAV2)	+= sdhci-pxav2.o

obj-$(CONFIG_MMC_SDHCI_S3C)	+= sdhci-s3c.o

drivers/mmc/host/sdhci-pci-data.c

0 → 100644
+5 −0
Original line number Diff line number Diff line 
#include <linux/module.h>

#include <linux/mmc/sdhci-pci-data.h>



struct sdhci_pci_data *(*sdhci_pci_get_data)(struct pci_dev *pdev, int slotno);

EXPORT_SYMBOL_GPL(sdhci_pci_get_data);

drivers/mmc/host/sdhci-pci.c

+28 −4
Original line number Diff line number Diff line
@@ -25,6 +25,7 @@ 
#include <linux/gpio.h>

#include <linux/sfi.h>

#include <linux/pm_runtime.h>

#include <linux/mmc/sdhci-pci-data.h>



#include "sdhci.h"
@@ -61,6 +62,7 @@ struct sdhci_pci_fixes { 
struct sdhci_pci_slot {

	struct sdhci_pci_chip	*chip;

	struct sdhci_host	*host;

	struct sdhci_pci_data	*data;



	int			pci_bar;

	int			rst_n_gpio;
@@ -1188,11 +1190,12 @@ static const struct dev_pm_ops sdhci_pci_pm_ops = { 
\*****************************************************************************/



static struct sdhci_pci_slot * __devinit sdhci_pci_probe_slot(

	struct pci_dev *pdev, struct sdhci_pci_chip *chip, int bar)

	struct pci_dev *pdev, struct sdhci_pci_chip *chip, int first_bar,

	int slotno)

{

	struct sdhci_pci_slot *slot;

	struct sdhci_host *host;

	int ret;

	int ret, bar = first_bar + slotno;



	if (!(pci_resource_flags(pdev, bar) & IORESOURCE_MEM)) {

		dev_err(&pdev->dev, "BAR %d is not iomem. Aborting.\n", bar);
@@ -1227,6 +1230,20 @@ static struct sdhci_pci_slot * __devinit sdhci_pci_probe_slot( 
	slot->pci_bar = bar;

	slot->rst_n_gpio = -EINVAL;



	/* Retrieve platform data if there is any */

	if (*sdhci_pci_get_data)

		slot->data = sdhci_pci_get_data(pdev, slotno);



	if (slot->data) {

		if (slot->data->setup) {

			ret = slot->data->setup(slot->data);

			if (ret) {

				dev_err(&pdev->dev, "platform setup failed\n");

				goto free;

			}

		}

	}



	host->hw_name = "PCI";

	host->ops = &sdhci_pci_ops;

	host->quirks = chip->quirks;
@@ -1236,7 +1253,7 @@ static struct sdhci_pci_slot * __devinit sdhci_pci_probe_slot( 
	ret = pci_request_region(pdev, bar, mmc_hostname(host->mmc));

	if (ret) {

		dev_err(&pdev->dev, "cannot request region\n");

		goto free;

		goto cleanup;

	}



	host->ioaddr = pci_ioremap_bar(pdev, bar);
@@ -1270,6 +1287,10 @@ unmap: 
release:

	pci_release_region(pdev, bar);



cleanup:

	if (slot->data && slot->data->cleanup)

		slot->data->cleanup(slot->data);



free:

	sdhci_free_host(host);
@@ -1291,6 +1312,9 @@ static void sdhci_pci_remove_slot(struct sdhci_pci_slot *slot) 
	if (slot->chip->fixes && slot->chip->fixes->remove_slot)

		slot->chip->fixes->remove_slot(slot, dead);



	if (slot->data && slot->data->cleanup)

		slot->data->cleanup(slot->data);



	pci_release_region(slot->chip->pdev, slot->pci_bar);



	sdhci_free_host(slot->host);
@@ -1377,7 +1401,7 @@ static int __devinit sdhci_pci_probe(struct pci_dev *pdev, 
	slots = chip->num_slots;	/* Quirk may have changed this */



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

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

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

		if (IS_ERR(slot)) {

			for (i--; i >= 0; i--)

				sdhci_pci_remove_slot(chip->slots[i]);

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