mmc: remove s3cmci driver

The s3c24xx platform is gone, so this driver can be removed as well.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

MAINTAINERS

@@ -18284,12 +18284,6 @@ L:	linux-s390@vger.kernel.org
 S:	Supported
 F:	drivers/s390/scsi/zfcp_*
 
-S3C24XX SD/MMC Driver
-M:	Ben Dooks <ben-linux@fluff.org>
-L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-S:	Supported
-F:	drivers/mmc/host/s3cmci.*
-
 SAA6588 RDS RECEIVER DRIVER
 M:	Hans Verkuil <hverkuil@xs4all.nl>
 L:	linux-media@vger.kernel.org

drivers/mmc/host/Kconfig

@@ -628,49 +628,6 @@ config MMC_SPI
 
 	  If unsure, or if your system has no SPI master driver, say N.
 
-config MMC_S3C
-	tristate "Samsung S3C SD/MMC Card Interface support"
-	depends on ARCH_S3C24XX || COMPILE_TEST
-	depends on S3C24XX_DMAC || COMPILE_TEST
-	help
-	  This selects a driver for the MCI interface found in
-	  Samsung's S3C2410, S3C2412, S3C2440, S3C2442 CPUs.
-	  If you have a board based on one of those and a MMC/SD
-	  slot, say Y or M here.
-
-	  If unsure, say N.
-
-config MMC_S3C_HW_SDIO_IRQ
-	bool "Hardware support for SDIO IRQ"
-	depends on MMC_S3C
-	help
-	  Enable the hardware support for SDIO interrupts instead of using
-	  the generic polling code.
-
-choice
-	prompt "Samsung S3C SD/MMC transfer code"
-	depends on MMC_S3C
-
-config MMC_S3C_PIO
-	bool "Use PIO transfers only"
-	help
-	  Use PIO to transfer data between memory and the hardware.
-
-	  PIO is slower than DMA as it requires CPU instructions to
-	  move the data. This has been the traditional default for
-	  the S3C MCI driver.
-
-config MMC_S3C_DMA
-	bool "Use DMA transfers only"
-	help
-	  Use DMA to transfer data between memory and the hardware.
-
-	  Currently, the DMA support in this driver seems to not be
-	  working properly and needs to be debugged before this
-	  option is useful.
-
-endchoice
-
 config MMC_SDRICOH_CS
 	tristate "MMC/SD driver for Ricoh Bay1Controllers"
 	depends on PCI && PCMCIA

drivers/mmc/host/Makefile

@@ -34,7 +34,6 @@ obj-$(CONFIG_MMC_MVSDIO)	+= mvsdio.o
 obj-$(CONFIG_MMC_DAVINCI)       += davinci_mmc.o
 obj-$(CONFIG_MMC_SPI)		+= mmc_spi.o
 obj-$(CONFIG_MMC_SPI)		+= of_mmc_spi.o
-obj-$(CONFIG_MMC_S3C)   	+= s3cmci.o
 obj-$(CONFIG_MMC_SDRICOH_CS)	+= sdricoh_cs.o
 obj-$(CONFIG_MMC_TMIO)		+= tmio_mmc.o
 obj-$(CONFIG_MMC_TMIO_CORE)	+= tmio_mmc_core.o

drivers/mmc/host/s3cmci.h

-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- *  linux/drivers/mmc/s3cmci.h - Samsung S3C MCI driver
- *
- *  Copyright (C) 2004-2006 Thomas Kleffel, All Rights Reserved.
- */
-
-enum s3cmci_waitfor {
-	COMPLETION_NONE,
-	COMPLETION_FINALIZE,
-	COMPLETION_CMDSENT,
-	COMPLETION_RSPFIN,
-	COMPLETION_XFERFINISH,
-	COMPLETION_XFERFINISH_RSPFIN,
-};
-
-struct s3cmci_host {
-	struct platform_device	*pdev;
-	struct s3c24xx_mci_pdata *pdata;
-	struct mmc_host		*mmc;
-	struct resource		*mem;
-	struct clk		*clk;
-	void __iomem		*base;
-	int			irq;
-	int			irq_cd;
-	struct dma_chan		*dma;
-
-	unsigned long		clk_rate;
-	unsigned long		clk_div;
-	unsigned long		real_rate;
-	u8			prescaler;
-
-	int			is2440;
-	unsigned		sdiimsk;
-	unsigned		sdidata;
-
-	bool			irq_disabled;
-	bool			irq_enabled;
-	bool			irq_state;
-	int			sdio_irqen;
-
-	struct mmc_request	*mrq;
-	int			cmd_is_stop;
-
-	spinlock_t		complete_lock;
-	enum s3cmci_waitfor	complete_what;
-
-	int			dma_complete;
-
-	u32			pio_sgptr;
-	u32			pio_bytes;
-	u32			pio_count;
-	u32			*pio_ptr;
-#define XFER_NONE 0
-#define XFER_READ 1
-#define XFER_WRITE 2
-	u32			pio_active;
-
-	int			bus_width;
-
-	char 			dbgmsg_cmd[301];
-	char 			dbgmsg_dat[301];
-	char			*status;
-
-	unsigned int		ccnt, dcnt;
-	struct tasklet_struct	pio_tasklet;
-
-#ifdef CONFIG_DEBUG_FS
-	struct dentry		*debug_root;
-#endif
-
-#ifdef CONFIG_ARM_S3C24XX_CPUFREQ
-	struct notifier_block	freq_transition;
-#endif
-};

include/linux/platform_data/mmc-s3cmci.h

-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ARCH_MCI_H
-#define _ARCH_MCI_H
-
-/**
- * struct s3c24xx_mci_pdata - sd/mmc controller platform data
- * @no_wprotect: Set this to indicate there is no write-protect switch.
- * @no_detect: Set this if there is no detect switch.
- * @wprotect_invert: Invert the default sense of the write protect switch.
- * @use_dma: Set to allow the use of DMA.
- * @gpio_detect: GPIO number for the card detect line.
- * @gpio_wprotect: GPIO number for the write protect line.
- * @ocr_avail: The mask of the available power states, non-zero to use.
- * @set_power: Callback to control the power mode.
- *
- * The @gpio_detect is used for card detection when @no_wprotect is unset,
- * and the default sense is that 0 returned from gpio_get_value() means
- * that a card is inserted. If @detect_invert is set, then the value from
- * gpio_get_value() is inverted, which makes 1 mean card inserted.
- *
- * The driver will use @gpio_wprotect to signal whether the card is write
- * protected if @no_wprotect is not set. A 0 returned from gpio_get_value()
- * means the card is read/write, and 1 means read-only. The @wprotect_invert
- * will invert the value returned from gpio_get_value().
- *
- * Card power is set by @ocr_availa, using MCC_VDD_ constants if it is set
- * to a non-zero value, otherwise the default of 3.2-3.4V is used.
- */
-struct s3c24xx_mci_pdata {
-	unsigned int	no_wprotect:1;
-	unsigned int	no_detect:1;
-	unsigned int	wprotect_invert:1;
-	unsigned int	use_dma:1;
-
-	unsigned long	ocr_avail;
-	void		(*set_power)(unsigned char power_mode,
-				     unsigned short vdd);
-	struct gpio_desc *bus[6];
-};
-
-/**
- * s3c24xx_mci_set_platdata - set platform data for mmc/sdi device
- * @pdata: The platform data
- *
- * Copy the platform data supplied by @pdata so that this can be marked
- * __initdata.
- */
-extern void s3c24xx_mci_def_set_power(unsigned char power_mode, unsigned short vdd);
-extern void s3c24xx_mci_set_platdata(struct s3c24xx_mci_pdata *pdata);
-
-#endif /* _ARCH_NCI_H */