[SERIO] i8042-sparcio.h: Convert to of_driver framework.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 69 insertions, 39 deletions

diff --git a/drivers/input/serio/i8042-sparcio.h b/drivers/input/serio/i8042-sparcio.h
index 6d66351805a2..9cad197a4e68 100644
--- a/drivers/input/serio/i8042-sparcio.h
+++ b/drivers/input/serio/i8042-sparcio.h
@@ -3,11 +3,9 @@
 
 #include <linux/config.h>
 #include <asm/io.h>
-
-#ifdef CONFIG_PCI
 #include <asm/oplib.h>
-#include <asm/ebus.h>
-#endif
+#include <asm/prom.h>
+#include <asm/of_device.h>
 
 static int i8042_kbd_irq = -1;
 static int i8042_aux_irq = -1;
@@ -48,54 +46,83 @@ static inline void i8042_write_command(int val)
 #define OBP_PS2MS_NAME1         "kdmouse"
 #define OBP_PS2MS_NAME2         "mouse"
 
+static int __devinit sparc_i8042_probe(struct of_device *op, const struct of_device_id *match)
+{
+        struct device_node *dp = op->node;
+
+        dp = dp->child;
+        while (dp) {
+                if (!strcmp(dp->name, OBP_PS2KBD_NAME1) ||
+                    !strcmp(dp->name, OBP_PS2KBD_NAME2)) {
+                        struct of_device *kbd = of_find_device_by_node(dp);
+                        unsigned int irq = kbd->irqs[0];
+                        if (irq == 0xffffffff)
+                                irq = op->irqs[0];
+                        i8042_kbd_irq = irq;
+                        kbd_iobase = of_ioremap(&kbd->resource[0],
+                                                0, 8, "kbd");
+                } else if (!strcmp(dp->name, OBP_PS2MS_NAME1) ||
+                           !strcmp(dp->name, OBP_PS2MS_NAME2)) {
+                        struct of_device *ms = of_find_device_by_node(dp);
+                        unsigned int irq = ms->irqs[0];
+                        if (irq == 0xffffffff)
+                                irq = op->irqs[0];
+                        i8042_aux_irq = irq;
+                }
+
+                dp = dp->sibling;
+        }
+
+        return 0;
+}
+
+static int __devexit sparc_i8042_remove(struct of_device *op)
+{
+        of_iounmap(kbd_iobase, 8);
+
+        return 0;
+}
+
+static struct of_device_id sparc_i8042_match[] = {
+        {
+                .name = "8042",
+        },
+        {},
+};
+MODULE_DEVICE_TABLE(of, i8042_match);
+
+static struct of_platform_driver sparc_i8042_driver = {
+        .name           = "i8042",
+        .match_table    = sparc_i8042_match,
+        .probe          = sparc_i8042_probe,
+        .remove         = __devexit_p(sparc_i8042_remove),
+};
+
 static int __init i8042_platform_init(void)
 {
 #ifndef CONFIG_PCI
         return -ENODEV;
 #else
-        char prop[128];
-        int len;
+        struct device_node *root = of_find_node_by_path("/");
 
-        len = prom_getproperty(prom_root_node, "name", prop, sizeof(prop));
-        if (len < 0) {
-                printk("i8042: Cannot get name property of root OBP node.\n");
-                return -ENODEV;
-        }
-        if (strncmp(prop, "SUNW,JavaStation-1", len) == 0) {
+        if (!strcmp(root->name, "SUNW,JavaStation-1")) {
                 /* Hardcoded values for MrCoffee.  */
                 i8042_kbd_irq = i8042_aux_irq = 13 | 0x20;
                 kbd_iobase = ioremap(0x71300060, 8);
                 if (!kbd_iobase)
                         return -ENODEV;
         } else {
-                struct linux_ebus *ebus;
-                struct linux_ebus_device *edev;
-                struct linux_ebus_child *child;
-
-                for_each_ebus(ebus) {
-                        for_each_ebusdev(edev, ebus) {
-                                if (!strcmp(edev->prom_node->name, "8042"))
-                                        goto edev_found;
-                        }
-                }
-                return -ENODEV;
-
-        edev_found:
-                for_each_edevchild(edev, child) {
-                        if (!strcmp(child->prom_node->name, OBP_PS2KBD_NAME1) ||
-                            !strcmp(child->prom_node->name, OBP_PS2KBD_NAME2)) {
-                                i8042_kbd_irq = child->irqs[0];
-                                kbd_iobase =
-                                        ioremap(child->resource[0].start, 8);
-                        }
-                        if (!strcmp(child->prom_node->name, OBP_PS2MS_NAME1) ||
-                            !strcmp(child->prom_node->name, OBP_PS2MS_NAME2))
-                                i8042_aux_irq = child->irqs[0];
-                }
+                int err = of_register_driver(&sparc_i8042_driver,
+                                             &of_bus_type);
+                if (err)
+                        return err;
+
                 if (i8042_kbd_irq == -1 ||
                     i8042_aux_irq == -1) {
-                        printk("i8042: Error, 8042 device lacks both kbd and "
-                               "mouse nodes.\n");
+                        if (kbd_iobase) {
+                                of_iounmap(kbd_iobase, 8);
+                                kbd_iobase = (void __iomem *) NULL;
+                        }
                         return -ENODEV;
                 }
         }
@@ -109,7 +136,10 @@ static int __init i8042_platform_init(void)
 static inline void i8042_platform_exit(void)
 {
 #ifdef CONFIG_PCI
-        iounmap(kbd_iobase);
+        struct device_node *root = of_find_node_by_path("/");
+
+        if (strcmp(root->name, "SUNW,JavaStation-1"))
+                of_unregister_driver(&sparc_i8042_driver);
 #endif
 }