mmc: sdhci-pci: Remove dead code (struct sdhci_pci_data et al)

The last user of this struct gone a couple of releases ago.
Besides that there were not so many users of this API for
more than 10 years:

1/ The one is Intel Merrifield, that had been added 2016-08-31
   by the commit 3976b038 ("x86/platform/intel-mid: Enable
   SD card detection on Merrifield") and removed 2021-02-11 by
   the commit 4590d98f ("sfi: Remove framework for deprecated
   firmware").

2/ The other is Intel Sunrisepoint related, that had been added
   2015-02-06 by the commit e1bfad6d ("mmc: sdhci-pci: Add
   support for drive strength selection for SPT") and removed
   2017-03-20 by the commit 51ced59c ("mmc: sdhci-pci: Use
   ACPI DSM to get driver strength for some Intel devices").

Effectively this is a revert of the commit 52c506f0 ("mmc:
sdhci-pci: add platform data").
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20211014132613.27861-4-andriy.shevchenko@linux.intel.comSigned-off-by: Ulf Hansson <ulf.hansson@linaro.org>

drivers/mmc/host/Makefile

@@ -14,7 +14,6 @@ obj-$(CONFIG_MMC_SDHCI)		+= sdhci.o
 obj-$(CONFIG_MMC_SDHCI_PCI)	+= sdhci-pci.o
 sdhci-pci-y			+= sdhci-pci-core.o sdhci-pci-o2micro.o sdhci-pci-arasan.o \
 				   sdhci-pci-dwc-mshc.o sdhci-pci-gli.o
-obj-$(subst m,y,$(CONFIG_MMC_SDHCI_PCI))	+= sdhci-pci-data.o
 obj-$(CONFIG_MMC_SDHCI_ACPI)	+= sdhci-acpi.o
 obj-$(CONFIG_MMC_SDHCI_PXAV3)	+= sdhci-pxav3.o
 obj-$(CONFIG_MMC_SDHCI_PXAV2)	+= sdhci-pxav2.o

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

@@ -17,8 +17,6 @@
 #include <linux/dma-mapping.h>
 #include <linux/slab.h>
 #include <linux/device.h>
-#include <linux/mmc/host.h>
-#include <linux/mmc/mmc.h>
 #include <linux/scatterlist.h>
 #include <linux/io.h>
 #include <linux/iopoll.h>
@@ -26,11 +24,13 @@
 #include <linux/pm_runtime.h>
 #include <linux/pm_qos.h>
 #include <linux/debugfs.h>
-#include <linux/mmc/slot-gpio.h>
-#include <linux/mmc/sdhci-pci-data.h>
 #include <linux/acpi.h>
 #include <linux/dmi.h>
 
+#include <linux/mmc/host.h>
+#include <linux/mmc/mmc.h>
+#include <linux/mmc/slot-gpio.h>
+
 #ifdef CONFIG_X86
 #include <asm/iosf_mbi.h>
 #endif
@@ -2131,22 +2131,6 @@ static struct sdhci_pci_slot *sdhci_pci_probe_slot(
 	slot->cd_gpio = -EINVAL;
 	slot->cd_idx = -1;
 
-	/* 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;
-			}
-		}
-		slot->rst_n_gpio = slot->data->rst_n_gpio;
-		slot->cd_gpio = slot->data->cd_gpio;
-	}
-
 	host->hw_name = "PCI";
 	host->ops = chip->fixes && chip->fixes->ops ?
 		    chip->fixes->ops :
@@ -2233,10 +2217,6 @@ static struct sdhci_pci_slot *sdhci_pci_probe_slot(
 		chip->fixes->remove_slot(slot, 0);
 
 cleanup:
-	if (slot->data && slot->data->cleanup)
-		slot->data->cleanup(slot->data);
-
-free:
 	sdhci_free_host(host);
 
 	return ERR_PTR(ret);
@@ -2259,9 +2239,6 @@ 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);
-
 	sdhci_free_host(slot->host);
 }
 

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

-// SPDX-License-Identifier: GPL-2.0-only
-#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.h

@@ -156,7 +156,6 @@ struct sdhci_pci_fixes {
 struct sdhci_pci_slot {
 	struct sdhci_pci_chip	*chip;
 	struct sdhci_host	*host;
-	struct sdhci_pci_data	*data;
 
 	int			rst_n_gpio;
 	int			cd_gpio;

include/linux/mmc/sdhci-pci-data.h

-/* SPDX-License-Identifier: GPL-2.0 */
-#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