[PATCH] pcmcia: unify attach, EVENT_CARD_INSERTION handlers into one probe callback

Unify the EVENT_CARD_INSERTION and "attach" callbacks to one unified
probe() callback. As all in-kernel drivers are changed to this new
callback, there will be no temporary backwards-compatibility. Inside a
probe() function, each driver _must_ set struct pcmcia_device
*p_dev->instance and instance->handle correctly.

With these patches, the basic driver interface for 16-bit PCMCIA drivers
now has the classic four callbacks known also from other buses:

        int (*probe)            (struct pcmcia_device *dev);
        void (*remove)          (struct pcmcia_device *dev);

        int (*suspend)          (struct pcmcia_device *dev);
        int (*resume)           (struct pcmcia_device *dev);

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

1 files changed, 10 insertions, 43 deletions

diff --git a/drivers/scsi/pcmcia/sym53c500_cs.c b/drivers/scsi/pcmcia/sym53c500_cs.c
index 87d50b33475e..3a4dd6f5b81f 100644
--- a/drivers/scsi/pcmcia/sym53c500_cs.c
+++ b/drivers/scsi/pcmcia/sym53c500_cs.c
@@ -228,14 +228,6 @@ enum Phase {
 
 /* ================================================================== */
 
-/*
-*  Global (within this module) variables other than
-*  sym53c500_driver_template (the scsi_host_template).
-*/
-static dev_info_t dev_info = "sym53c500_cs";
-
-/* ================================================================== */
-
 static void
 chip_init(int io_port)
 {
@@ -909,22 +901,6 @@ static int sym53c500_resume(struct pcmcia_device *dev)
         return 0;
 }
 
-static int
-SYM53C500_event(event_t event, int priority, event_callback_args_t *args)
-{
-        dev_link_t *link = args->client_data;
-
-        DEBUG(1, "SYM53C500_event(0x%06x)\n", event);
-
-        switch (event) {
-        case CS_EVENT_CARD_INSERTION:
-                link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
-                SYM53C500_config(link);
-                break;
-        }
-        return 0;
-} /* SYM53C500_event */
-
 static void
 SYM53C500_detach(struct pcmcia_device *p_dev)
 {
@@ -939,20 +915,18 @@ SYM53C500_detach(struct pcmcia_device *p_dev)
         link->priv = NULL;
 } /* SYM53C500_detach */
 
-static dev_link_t *
-SYM53C500_attach(void)
+static int
+SYM53C500_attach(struct pcmcia_device *p_dev)
 {
         struct scsi_info_t *info;
-        client_reg_t client_reg;
         dev_link_t *link;
-        int ret;
 
         DEBUG(0, "SYM53C500_attach()\n");
 
         /* Create new SCSI device */
         info = kmalloc(sizeof(*info), GFP_KERNEL);
         if (!info)
-                return NULL;
+                return -ENOMEM;
         memset(info, 0, sizeof(*info));
         link = &info->link;
         link->priv = info;
@@ -966,19 +940,13 @@ SYM53C500_attach(void)
         link->conf.IntType = INT_MEMORY_AND_IO;
         link->conf.Present = PRESENT_OPTION;
 
-        /* Register with Card Services */
-        link->next = NULL;
-        client_reg.dev_info = &dev_info;
-        client_reg.Version = 0x0210;
-        client_reg.event_callback_args.client_data = link;
-        ret = pcmcia_register_client(&link->handle, &client_reg);
-        if (ret != 0) {
-                cs_error(link->handle, RegisterClient, ret);
-                SYM53C500_detach(link->handle);
-                return NULL;
-        }
+        link->handle = p_dev;
+        p_dev->instance = link;
 
-        return link;
+        link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
+        SYM53C500_config(link);
+
+        return 0;
 } /* SYM53C500_attach */
 
 MODULE_AUTHOR("Bob Tracy <rct@frus.com>");
@@ -998,8 +966,7 @@ static struct pcmcia_driver sym53c500_cs_driver = {
         .drv            = {
                 .name   = "sym53c500_cs",
         },
-        .attach         = SYM53C500_attach,
-        .event          = SYM53C500_event,
+        .probe          = SYM53C500_attach,
         .remove         = SYM53C500_detach,
         .id_table       = sym53c500_ids,
         .suspend        = sym53c500_suspend,