mmc: pci: Add CONFIG_MMC_PCI

We don't want pci_mmc to compile every time x86 compiles, only when
there's a platform that needs it. For that reason, we're adding a new
CONFIG_MMC_PCI which platforms can choose to enable.
Suggested-by: NJaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>
Signed-off-by: NFelipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>

configs/bayleybay_defconfig

@@ -48,6 +48,7 @@ CONFIG_REGMAP=y
 CONFIG_SYSCON=y
 CONFIG_CPU=y
 CONFIG_MMC=y
+CONFIG_MMC_PCI=y
 CONFIG_MMC_SDHCI=y
 CONFIG_MMC_SDHCI_SDMA=y
 CONFIG_SPI_FLASH=y

configs/conga-qeval20-qa3-e3845-internal-uart_defconfig

@@ -50,6 +50,7 @@ CONFIG_DM_I2C=y
 CONFIG_SYS_I2C_INTEL=y
 CONFIG_WINBOND_W83627=y
 CONFIG_MMC=y
+CONFIG_MMC_PCI=y
 CONFIG_MMC_SDHCI=y
 CONFIG_MMC_SDHCI_SDMA=y
 CONFIG_SPI_FLASH=y

configs/conga-qeval20-qa3-e3845_defconfig

@@ -49,6 +49,7 @@ CONFIG_DM_I2C=y
 CONFIG_SYS_I2C_INTEL=y
 CONFIG_WINBOND_W83627=y
 CONFIG_MMC=y
+CONFIG_MMC_PCI=y
 CONFIG_MMC_SDHCI=y
 CONFIG_MMC_SDHCI_SDMA=y
 CONFIG_SPI_FLASH=y

configs/crownbay_defconfig

@@ -37,6 +37,7 @@ CONFIG_REGMAP=y
 CONFIG_SYSCON=y
 CONFIG_CPU=y
 CONFIG_MMC=y
+CONFIG_MMC_PCI=y
 CONFIG_MMC_SDHCI=y
 CONFIG_MMC_SDHCI_SDMA=y
 CONFIG_SPI_FLASH=y

configs/dfi-bt700-q7x-151_defconfig

@@ -47,6 +47,7 @@ CONFIG_CPU=y
 CONFIG_DM_I2C=y
 CONFIG_NUVOTON_NCT6102D=y
 CONFIG_MMC=y
+CONFIG_MMC_PCI=y
 CONFIG_MMC_SDHCI=y
 CONFIG_MMC_SDHCI_SDMA=y
 CONFIG_SPI_FLASH=y

configs/galileo_defconfig

@@ -42,6 +42,7 @@ CONFIG_REGMAP=y
 CONFIG_SYSCON=y
 CONFIG_CPU=y
 CONFIG_MMC=y
+CONFIG_MMC_PCI=y
 CONFIG_MMC_SDHCI=y
 CONFIG_MMC_SDHCI_SDMA=y
 CONFIG_SPI_FLASH=y

configs/minnowmax_defconfig

@@ -47,6 +47,7 @@ CONFIG_REGMAP=y
 CONFIG_SYSCON=y
 CONFIG_CPU=y
 CONFIG_MMC=y
+CONFIG_MMC_PCI=y
 CONFIG_MMC_SDHCI=y
 CONFIG_MMC_SDHCI_SDMA=y
 CONFIG_SPI_FLASH=y

configs/theadorable-x86-dfi-bt700_defconfig

@@ -47,6 +47,7 @@ CONFIG_CPU=y
 CONFIG_DM_I2C=y
 CONFIG_NUVOTON_NCT6102D=y
 CONFIG_MMC=y
+CONFIG_MMC_PCI=y
 CONFIG_MMC_SDHCI=y
 CONFIG_MMC_SDHCI_SDMA=y
 CONFIG_SPI_FLASH=y

drivers/mmc/Kconfig

@@ -122,6 +122,14 @@ config MMC_MXS
 
 	  If unsure, say N.
 
+config MMC_PCI
+	bool "Support for MMC controllers on PCI"
+	help
+	  This selects PCI-based MMC controllers.
+	  If you have an MMC controller on a PCI bus, say Y here.
+
+	  If unsure, say N.
+
 config MMC_OMAP_HS
 	bool "TI OMAP High Speed Multimedia Card Interface support"
 	help

drivers/mmc/Makefile

@@ -34,7 +34,7 @@ obj-$(CONFIG_MVEBU_MMC) += mvebu_mmc.o
 obj-$(CONFIG_MMC_OMAP_HS)		+= omap_hsmmc.o
 obj-$(CONFIG_MMC_MXC)			+= mxcmmc.o
 obj-$(CONFIG_MMC_MXS)			+= mxsmmc.o
-obj-$(CONFIG_X86) += pci_mmc.o
+obj-$(CONFIG_MMC_PCI)			+= pci_mmc.o
 obj-$(CONFIG_PXA_MMC_GENERIC) += pxa_mmc_gen.o
 obj-$(CONFIG_SUPPORT_EMMC_RPMB) += rpmb.o
 obj-$(CONFIG_S3C_SDI) += s3c_sdi.o