mmc: Add new via-sdmmc host controller driver

This adds the via-sdmmc driver for the SD/MMC-controller of VIA,
which is found in a number of recent integrated VIA chipset
products.
Signed-off-by: Harald Welte <HaraldWelte@viatech.com>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>

MAINTAINERS

@@ -6230,6 +6230,14 @@ S:	Maintained
 F:	Documentation/i2c/busses/i2c-viapro
 F:	drivers/i2c/busses/i2c-viapro.c
 
+VIA SD/MMC CARD CONTROLLER DRIVER
+P:	Joseph Chan
+M:	JosephChan@via.com.tw
+P:	Harald Welte
+M:	HaraldWelte@viatech.com
+S:	Maintained
+F:	drivers/mmc/host/via-sdmmc.c
+
 VIA UNICHROME(PRO)/CHROME9 FRAMEBUFFER DRIVER
 P:	Joseph Chan
 M:	JosephChan@via.com.tw

drivers/mmc/host/Kconfig

@@ -290,3 +290,14 @@ config MMC_CB710
 	  This driver can also be built as a module. If so, the module
 	  will be called cb710-mmc.
 
+config MMC_VIA_SDMMC
+	tristate "VIA SD/MMC Card Reader Driver"
+	depends on PCI
+	help
+	  This selects the VIA SD/MMC Card Reader driver, say Y or M here.
+	  VIA provides one multi-functional card reader which integrated into
+	  some motherboards manufactured by VIA. This card reader supports
+	  SD/MMC/SDHC.
+	  If you have a controller with this interface, say Y or M here.
+
+	  If unsure, say N.

drivers/mmc/host/Makefile

@@ -32,6 +32,7 @@ obj-$(CONFIG_MMC_S3C)   	+= s3cmci.o
 obj-$(CONFIG_MMC_SDRICOH_CS)	+= sdricoh_cs.o
 obj-$(CONFIG_MMC_TMIO)		+= tmio_mmc.o
 obj-$(CONFIG_MMC_CB710)	+= cb710-mmc.o
+obj-$(CONFIG_MMC_VIA_SDMMC)	+= via-sdmmc.o
 
 ifeq ($(CONFIG_CB710_DEBUG),y)
 	CFLAGS-cb710-mmc	+= -DDEBUG