pandora: update defconfig

[pandora-kernel.git] / drivers / sh / pfc.c

diff --git a/drivers/sh/pfc.c b/drivers/sh/pfc.c
index 082604e..cf0303a 100644 (file)
--- a/drivers/sh/pfc.c
+++ b/drivers/sh/pfc.c
@@ -337,12 +337,39 @@ static int pinmux_config_gpio(struct pinmux_info *gpioc, unsigned gpio,
                if (!enum_id)
                        break;
 
+               /* first check if this is a function enum */
                in_range = enum_in_range(enum_id, &gpioc->function);
-               if (!in_range && range) {
-                       in_range = enum_in_range(enum_id, range);
-
-                       if (in_range && enum_id == range->force)
-                               continue;
+               if (!in_range) {
+                       /* not a function enum */
+                       if (range) {
+                               /*
+                                * other range exists, so this pin is
+                                * a regular GPIO pin that now is being
+                                * bound to a specific direction.
+                                *
+                                * for this case we only allow function enums
+                                * and the enums that match the other range.
+                                */
+                               in_range = enum_in_range(enum_id, range);
+
+                               /*
+                                * special case pass through for fixed
+                                * input-only or output-only pins without
+                                * function enum register association.
+                                */
+                               if (in_range && enum_id == range->force)
+                                       continue;
+                       } else {
+                               /*
+                                * no other range exists, so this pin
+                                * must then be of the function type.
+                                *
+                                * allow function type pins to select
+                                * any combination of function/in/out
+                                * in their MARK lists.
+                                */
+                               in_range = 1;
+                       }
                }
 
                if (!in_range)