sdhci: move pci stuff to separate module

The SDHCI interface is not PCI specific, yet the Linux driver was
intimitely connected to the PCI bus. This patch properly separates
the PCI specific portion from the bus independent code.

This patch is based on work by Ben Dooks but he did not have time
to complete it.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

1 files changed, 16 insertions, 3 deletions

diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index dead61754ad7..f9cbcb891e99 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -26,18 +26,31 @@ config MMC_PXA
 
 config MMC_SDHCI
         tristate "Secure Digital Host Controller Interface support"
-        depends on PCI
+        depends on HAS_DMA
         help
-          This select the generic Secure Digital Host Controller Interface.
+          This selects the generic Secure Digital Host Controller Interface.
           It is used by manufacturers such as Texas Instruments(R), Ricoh(R)
           and Toshiba(R). Most controllers found in laptops are of this type.
+
+          If you have a controller with this interface, say Y or M here. You
+          also need to enable an appropriate bus interface.
+
+          If unsure, say N.
+
+config MMC_SDHCI_PCI
+        tristate "SDHCI support on PCI bus"
+        depends on MMC_SDHCI && PCI
+        help
+          This selects the PCI Secure Digital Host Controller Interface.
+          Most controllers found today are PCI devices.
+
           If you have a controller with this interface, say Y or M here.
 
           If unsure, say N.
 
 config MMC_RICOH_MMC
         tristate "Ricoh MMC Controller Disabler  (EXPERIMENTAL)"
-        depends on PCI && EXPERIMENTAL && MMC_SDHCI
+        depends on MMC_SDHCI_PCI
         help
           This selects the disabler for the Ricoh MMC Controller. This
           proprietary controller is unnecessary because the SDHCI driver