[IDE] Introduce SATA enable/disable config option

This config option is introduced to help reduce user confusion,
and eliminate conflicts between the IDE driver (which is often
built into user kernels) and the new libata SATA driver.

drivers/ide/Kconfig

@@ -95,6 +95,26 @@ if BLK_DEV_IDE
 
 comment "Please see Documentation/ide.txt for help/info on IDE drives"
 
+config BLK_DEV_IDE_SATA
+	bool "Support for SATA (deprecated; conflicts with libata SATA driver)"
+	default n
+	---help---
+	  There are two drivers for Serial ATA controllers.
+
+	  The main driver, "libata", exists inside the SCSI subsystem
+	  and supports most modern SATA controllers.
+
+	  The IDE driver (which you are currently configuring) supports
+	  a few first-generation SATA controllers.
+
+	  In order to eliminate conflicts between the two subsystems,
+	  this config option enables the IDE driver's SATA support.
+	  Normally this is disabled, as it is preferred that libata
+	  supports SATA controllers, and this (IDE) driver supports
+	  PATA controllers.
+
+	  If unsure, say N.
+
 config BLK_DEV_HD_IDE
 	bool "Use old disk-only driver on primary interface"
 	depends on ((X86 && X86_PC9800!=y) || SH_MPC1211)

drivers/ide/pci/generic.c

@@ -127,7 +127,9 @@ static struct pci_device_id generic_pci_tbl[] = {
 	{ PCI_VENDOR_ID_HINT,   PCI_DEVICE_ID_HINT_VXPROII_IDE,    PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6},
 	{ PCI_VENDOR_ID_VIA,    PCI_DEVICE_ID_VIA_82C561,          PCI_ANY_ID, PCI_ANY_ID, 0, 0, 7},
 	{ PCI_VENDOR_ID_OPTI,   PCI_DEVICE_ID_OPTI_82C558,         PCI_ANY_ID, PCI_ANY_ID, 0, 0, 8},
+#ifdef CONFIG_BLK_DEV_IDE_SATA
 	{ PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_8237_SATA,	   PCI_ANY_ID, PCI_ANY_ID, 0, 0, 9},
+#endif
 	{ PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO,     PCI_ANY_ID, PCI_ANY_ID, 0, 0, 10},
 	{ PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_1,   PCI_ANY_ID, PCI_ANY_ID, 0, 0, 11},
 	{ PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_2,   PCI_ANY_ID, PCI_ANY_ID, 0, 0, 12},

drivers/ide/pci/piix.c

@@ -793,9 +793,9 @@ static struct pci_device_id piix_pci_tbl[] = {
 	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_11,PCI_ANY_ID, PCI_ANY_ID, 0, 0, 15},
 	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801E_11, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 16},
 	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_10,PCI_ANY_ID, PCI_ANY_ID, 0, 0, 17},
-#ifndef CONFIG_SCSI_SATA
+#ifdef CONFIG_BLK_DEV_IDE_SATA
  	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801EB_1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 18},
-#endif /* !CONFIG_SCSI_SATA */
+#endif
 	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 19},
 	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_19, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 20},
 	{ 0, },

drivers/ide/pci/siimage.c

@@ -21,6 +21,7 @@
  *	if neccessary
  */
 
+#include <linux/config.h>
 #include <linux/types.h>
 #include <linux/module.h>
 #include <linux/pci.h>
@@ -1127,8 +1128,10 @@ static int __devinit siimage_init_one(struct pci_dev *dev, const struct pci_devi
 
 static struct pci_device_id siimage_pci_tbl[] = {
 	{ PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_SII_680,  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+#ifdef CONFIG_BLK_DEV_IDE_SATA
 	{ PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_SII_3112, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
 	{ PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_SII_1210SA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
+#endif
 	{ 0, },
 };
 MODULE_DEVICE_TABLE(pci, siimage_pci_tbl);