#define to_cycles(ns)  ((ns)/120)
 #define to_ns(cycles)  ((cycles)*120)
 
+/**
+ * yenta PCI irq probing.
+ * currently only used in the TI/EnE initialization code
+ */
+#ifdef CONFIG_YENTA_TI
 static int yenta_probe_cb_irq(struct yenta_socket *socket);
+#endif
 
 
 static unsigned int override_bios;
 };
 
 
+#ifdef CONFIG_YENTA_TI
 #include "ti113x.h"
+#endif
+#ifdef CONFIG_YENTA_RICOH
 #include "ricoh.h"
+#endif
+#ifdef CONFIG_YENTA_TOSHIBA
 #include "topic.h"
+#endif
+#ifdef CONFIG_YENTA_O2
 #include "o2micro.h"
+#endif
 
 enum {
        CARDBUS_TYPE_DEFAULT = -1,
  * initialization sequences etc details. List them here..
  */
 static struct cardbus_type cardbus_type[] = {
+#ifdef CONFIG_YENTA_TI
        [CARDBUS_TYPE_TI]       = {
                .override       = ti_override,
                .save_state     = ti_save_state,
                .restore_state  = ti_restore_state,
                .sock_init      = ti_init,
        },
+#endif
+#ifdef CONFIG_YENTA_RICOH
        [CARDBUS_TYPE_RICOH]    = {
                .override       = ricoh_override,
                .save_state     = ricoh_save_state,
                .restore_state  = ricoh_restore_state,
        },
+#endif
+#ifdef CONFIG_YENTA_TOSHIBA
        [CARDBUS_TYPE_TOPIC95]  = {
                .override       = topic95_override,
        },
        [CARDBUS_TYPE_TOPIC97]  = {
                .override       = topic97_override,
        },
+#endif
+#ifdef CONFIG_YENTA_O2
        [CARDBUS_TYPE_O2MICRO]  = {
                .override       = o2micro_override,
                .restore_state  = o2micro_restore_state,
        },
+#endif
+#ifdef CONFIG_YENTA_TI
        [CARDBUS_TYPE_ENE]      = {
                .override       = ene_override,
                .save_state     = ti_save_state,
                .restore_state  = ti_restore_state,
                .sock_init      = ti_init,
        },
+#endif
 };
 
 
 }
 
 
+/**
+ * yenta PCI irq probing.
+ * currently only used in the TI/EnE initialization code
+ */
+#ifdef CONFIG_YENTA_TI
+
 /* interrupt handler, only used during probing */
 static irqreturn_t yenta_probe_handler(int irq, void *dev_id, struct pt_regs *regs)
 {
        return (int) socket->probe_status;
 }
 
+#endif /* CONFIG_YENTA_TI */
 
 
 /*
         * advanced overrides instead.  (I can't get the
         * data sheets for these devices. --rmk)
         */
+#ifdef CONFIG_YENTA_TI
        CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1210, TI),
 
        CB_ID(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1130, TI113X),
        CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1225, ENE),
        CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1410, ENE),
        CB_ID(PCI_VENDOR_ID_ENE, PCI_DEVICE_ID_ENE_1420, ENE),
+#endif /* CONFIG_YENTA_TI */
 
+#ifdef CONFIG_YENTA_RICOH
        CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C465, RICOH),
        CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C466, RICOH),
        CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C475, RICOH),
        CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C476, RICOH),
        CB_ID(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_RL5C478, RICOH),
+#endif
 
+#ifdef CONFIG_YENTA_TOSHIBA
        CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC95, TOPIC95),
        CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC97, TOPIC97),
        CB_ID(PCI_VENDOR_ID_TOSHIBA, PCI_DEVICE_ID_TOSHIBA_TOPIC100, TOPIC97),
+#endif
 
+#ifdef CONFIG_YENTA_O2
        CB_ID(PCI_VENDOR_ID_O2, PCI_ANY_ID, O2MICRO),
+#endif
 
        /* match any cardbus bridge */
        CB_ID(PCI_ANY_ID, PCI_ANY_ID, DEFAULT),