pcmcia: use autoconfiguration feature for ioports and iomem

When CONF_AUTO_SET_IO or CONF_AUTO_SET_IOMEM are set, the corresponding
fields in struct pcmcia_device *p_dev->resource[0,1,2] are set
accordinly. Drivers wishing to override certain settings may do so in
the callback function, but they no longer need to parse the CIS entries
stored in cistpl_cftable_entry_t themselves.

CC: netdev@vger.kernel.org
CC: linux-wireless@vger.kernel.org
CC: linux-ide@vger.kernel.org
CC: linux-usb@vger.kernel.org
CC: laforge@gnumonks.org
CC: linux-mtd@lists.infradead.org
CC: linux-bluetooth@vger.kernel.org
CC: alsa-devel@alsa-project.org
CC: linux-serial@vger.kernel.org
CC: Jiri Kosina <jkosina@suse.cz>
CC: linux-scsi@vger.kernel.org
Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

1 files changed, 26 insertions, 25 deletions

diff --git a/drivers/bluetooth/btuart_cs.c b/drivers/bluetooth/btuart_cs.c
index 8a6864fc8c3..9f9bb69dc0a 100644
--- a/drivers/bluetooth/btuart_cs.c
+++ b/drivers/bluetooth/btuart_cs.c
@@ -585,10 +585,8 @@ static int btuart_probe(struct pcmcia_device *link)
         info->p_dev = link;
         link->priv = info;
 
-        link->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
-        link->resource[0]->end = 8;
-
-        link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_VPP;
+        link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_VPP |
+                CONF_AUTO_SET_IO;
 
         return btuart_config(link);
 }
@@ -602,38 +600,41 @@ static void btuart_detach(struct pcmcia_device *link)
         kfree(info);
 }
 
-static int btuart_check_config(struct pcmcia_device *p_dev,
-                               cistpl_cftable_entry_t *cf,
-                               cistpl_cftable_entry_t *dflt,
-                               void *priv_data)
+static int btuart_check_config(struct pcmcia_device *p_dev, void *priv_data)
 {
         int *try = priv_data;
-        p_dev->io_lines = (try == 0) ? 16 : cf->io.flags & CISTPL_IO_LINES_MASK;
 
-        if ((cf->io.nwin > 0) && (cf->io.win[0].len == 8) &&
-            (cf->io.win[0].base != 0)) {
-                p_dev->resource[0]->start = cf->io.win[0].base;
-                if (!pcmcia_request_io(p_dev))
-                        return 0;
-        }
-        return -ENODEV;
+        if (try == 0)
+                p_dev->io_lines = 16;
+
+        if ((p_dev->resource[0]->end != 8) || (p_dev->resource[0]->start == 0))
+                return -EINVAL;
+
+        p_dev->resource[0]->end = 8;
+        p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
+        p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
+
+        return pcmcia_request_io(p_dev);
 }
 
 static int btuart_check_config_notpicky(struct pcmcia_device *p_dev,
-                                        cistpl_cftable_entry_t *cf,
-                                        cistpl_cftable_entry_t *dflt,
                                         void *priv_data)
 {
         static unsigned int base[5] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8, 0x0 };
         int j;
 
-        if ((cf->io.nwin > 0) && ((cf->io.flags & CISTPL_IO_LINES_MASK) <= 3)) {
-                for (j = 0; j < 5; j++) {
-                        p_dev->resource[0]->start = base[j];
-                        p_dev->io_lines = base[j] ? 16 : 3;
-                        if (!pcmcia_request_io(p_dev))
-                                return 0;
-                }
+        if (p_dev->io_lines > 3)
+                return -ENODEV;
+
+        p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
+        p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
+        p_dev->resource[0]->end = 8;
+
+        for (j = 0; j < 5; j++) {
+                p_dev->resource[0]->start = base[j];
+                p_dev->io_lines = base[j] ? 16 : 3;
+                if (!pcmcia_request_io(p_dev))
+                        return 0;
         }
         return -ENODEV;
 }