[PATCH] pcmcia: mark parent bridge windows as resources available for PCMCIA devices

Automatically mark the parent PCI-PCI bridge windows as resources available
for PCMCIA usage.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2 files changed, 59 insertions, 1 deletions

diff --git a/drivers/pcmcia/rsrc_mgr.c b/drivers/pcmcia/rsrc_mgr.c
index b6843f8d300d..b9269e66281a 100644
--- a/drivers/pcmcia/rsrc_mgr.c
+++ b/drivers/pcmcia/rsrc_mgr.c
@@ -72,7 +72,7 @@ int pcmcia_adjust_resource_info(adjust_t *adj)
                         /* you can't use the old interface if the new
                          * one was used before */
                         spin_lock_irqsave(&s->lock, flags);
-                        if ((s->resource_setup_done) &&
+                        if ((s->resource_setup_new) &&
                             !(s->resource_setup_old)) {
                                 spin_unlock_irqrestore(&s->lock, flags);
                                 continue;
diff --git a/drivers/pcmcia/rsrc_nonstatic.c b/drivers/pcmcia/rsrc_nonstatic.c
index 6b463609a3aa..c8f21796c592 100644
--- a/drivers/pcmcia/rsrc_nonstatic.c
+++ b/drivers/pcmcia/rsrc_nonstatic.c
@@ -768,6 +768,58 @@ static int nonstatic_adjust_resource_info(struct pcmcia_socket *s, adjust_t *adj
         return CS_UNSUPPORTED_FUNCTION;
 }
 
+#ifdef CONFIG_PCI
+static int nonstatic_autoadd_resources(struct pcmcia_socket *s)
+{
+        struct resource *res;
+        int i, done = 0;
+
+        if (!s->cb_dev || !s->cb_dev->bus)
+                return -ENODEV;
+
+        for (i=0; i < PCI_BUS_NUM_RESOURCES; i++) {
+                res = s->cb_dev->bus->resource[i];
+                if (!res)
+                        continue;
+
+                if (res->flags & IORESOURCE_IO) {
+                        if (res == &ioport_resource)
+                                continue;
+                        printk(KERN_INFO "pcmcia: parent PCI bridge I/O window: 0x%lx - 0x%lx\n",
+                               res->start, res->end);
+                        if (!adjust_io(s, ADD_MANAGED_RESOURCE, res->start, res->end))
+                                done |= IORESOURCE_IO;
+
+                }
+
+                if (res->flags & IORESOURCE_MEM) {
+                        if (res == &iomem_resource)
+                                continue;
+                        printk(KERN_INFO "pcmcia: parent PCI bridge Memory window: 0x%lx - 0x%lx\n",
+                               res->start, res->end);
+                        if (!adjust_memory(s, ADD_MANAGED_RESOURCE, res->start, res->end))
+                                done |= IORESOURCE_MEM;
+                }
+        }
+
+        /* if we got at least one of IO, and one of MEM, we can be glad and
+         * activate the PCMCIA subsystem */
+        if (done & (IORESOURCE_MEM | IORESOURCE_IO))
+                s->resource_setup_done = 1;
+
+        return 0;
+}
+
+#else
+
+static inline int nonstatic_autoadd_resources(struct pcmcia_socket *s)
+{
+        return -ENODEV;
+}
+
+#endif
+
+
 static int nonstatic_init(struct pcmcia_socket *s)
 {
         struct socket_data *data;
@@ -782,6 +834,8 @@ static int nonstatic_init(struct pcmcia_socket *s)
 
         s->resource_data = (void *) data;
 
+        nonstatic_autoadd_resources(s);
+
         return 0;
 }
 
@@ -862,6 +916,8 @@ static ssize_t store_io_db(struct class_device *class_dev, const char *buf, size
                 return -EINVAL;
 
         ret = adjust_io(s, add, start_addr, end_addr);
+        if (!ret)
+                s->resource_setup_new = 1;
 
         return ret ? ret : count;
 }
@@ -912,6 +968,8 @@ static ssize_t store_mem_db(struct class_device *class_dev, const char *buf, siz
                 return -EINVAL;
 
         ret = adjust_memory(s, add, start_addr, end_addr);
+        if (!ret)
+                s->resource_setup_new = 1;
 
         return ret ? ret : count;
 }