amd7930: Convert to pure OF driver.

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

1 files changed, 20 insertions, 63 deletions

diff --git a/sound/sparc/amd7930.c b/sound/sparc/amd7930.c
index 0c63e0585b15..0f82c3f6cfdb 100644
--- a/sound/sparc/amd7930.c
+++ b/sound/sparc/amd7930.c
@@ -1,6 +1,6 @@
 /*
  * Driver for AMD7930 sound chips found on Sparcs.
- * Copyright (C) 2002 David S. Miller <davem@redhat.com>
+ * Copyright (C) 2002, 2008 David S. Miller <davem@davemloft.net>
  *
  * Based entirely upon drivers/sbus/audio/amd7930.c which is:
  * Copyright (C) 1996,1997 Thomas K. Dyas (tdyas@eden.rutgers.edu)
@@ -35,6 +35,8 @@
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/moduleparam.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 
 #include <sound/core.h>
 #include <sound/pcm.h>
@@ -44,7 +46,6 @@
 
 #include <asm/io.h>
 #include <asm/irq.h>
-#include <asm/sbus.h>
 #include <asm/prom.h>
 
 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;      /* Index 0-MAX */
@@ -335,8 +336,8 @@ struct snd_amd7930 {
         int                     pgain;
         int                     mgain;
 
+        struct of_device        *op;
         unsigned int            irq;
-        unsigned int            regs_size;
         struct snd_amd7930      *next;
 };
 
@@ -920,13 +921,16 @@ static int __devinit snd_amd7930_mixer(struct snd_amd7930 *amd)
 
 static int snd_amd7930_free(struct snd_amd7930 *amd)
 {
+        struct of_device *op = amd->op;
+
         amd7930_idle(amd);
 
         if (amd->irq)
                 free_irq(amd->irq, amd);
 
         if (amd->regs)
-                sbus_iounmap(amd->regs, amd->regs_size);
+                of_iounmap(&op->resource[0], amd->regs,
+                           resource_size(&op->resource[0]));
 
         kfree(amd);
 
@@ -945,13 +949,12 @@ static struct snd_device_ops snd_amd7930_dev_ops = {
 };
 
 static int __devinit snd_amd7930_create(struct snd_card *card,
-                                        struct resource *rp,
-                                        unsigned int reg_size,
+                                        struct of_device *op,
                                         int irq, int dev,
                                         struct snd_amd7930 **ramd)
 {
-        unsigned long flags;
         struct snd_amd7930 *amd;
+        unsigned long flags;
         int err;
 
         *ramd = NULL;
@@ -961,9 +964,10 @@ static int __devinit snd_amd7930_create(struct snd_card *card,
 
         spin_lock_init(&amd->lock);
         amd->card = card;
-        amd->regs_size = reg_size;
+        amd->op = op;
 
-        amd->regs = sbus_ioremap(rp, 0, amd->regs_size, "amd7930");
+        amd->regs = of_ioremap(&op->resource[0], 0,
+                               resource_size(&op->resource[0]), "amd7930");
         if (!amd->regs) {
                 snd_printk("amd7930-%d: Unable to map chip registers.\n", dev);
                 return -EIO;
@@ -1012,12 +1016,15 @@ static int __devinit snd_amd7930_create(struct snd_card *card,
         return 0;
 }
 
-static int __devinit amd7930_attach_common(struct resource *rp, int irq)
+static int __devinit amd7930_sbus_probe(struct of_device *op, const struct of_device_id *match)
 {
+        struct resource *rp = &op->resource[0];
         static int dev_num;
         struct snd_card *card;
         struct snd_amd7930 *amd;
-        int err;
+        int err, irq;
+
+        irq = op->irqs[0];
 
         if (dev_num >= SNDRV_CARDS)
                 return -ENODEV;
@@ -1038,8 +1045,7 @@ static int __devinit amd7930_attach_common(struct resource *rp, int irq)
                 (unsigned long long)rp->start,
                 irq);
 
-        if ((err = snd_amd7930_create(card, rp,
-                                      (rp->end - rp->start) + 1,
+        if ((err = snd_amd7930_create(card, op,
                                       irq, dev_num, &amd)) < 0)
                 goto out_err;
 
@@ -1064,42 +1070,6 @@ out_err:
         return err;
 }
 
-static int __devinit amd7930_obio_attach(struct device_node *dp)
-{
-        const struct linux_prom_registers *regs;
-        const struct linux_prom_irqs *irqp;
-        struct resource res, *rp;
-        int len;
-
-        irqp = of_get_property(dp, "intr", &len);
-        if (!irqp) {
-                snd_printk("%s: Firmware node lacks IRQ property.\n",
-                           dp->full_name);
-                return -ENODEV;
-        }
-
-        regs = of_get_property(dp, "reg", &len);
-        if (!regs) {
-                snd_printk("%s: Firmware node lacks register property.\n",
-                           dp->full_name);
-                return -ENODEV;
-        }
-
-        rp = &res;
-        rp->start = regs->phys_addr;
-        rp->end = rp->start + regs->reg_size - 1;
-        rp->flags = IORESOURCE_IO | (regs->which_io & 0xff);
-
-        return amd7930_attach_common(rp, irqp->pri);
-}
-
-static int __devinit amd7930_sbus_probe(struct of_device *dev, const struct of_device_id *match)
-{
-        struct sbus_dev *sdev = to_sbus_device(&dev->dev);
-
-        return amd7930_attach_common(&sdev->resource[0], sdev->irqs[0]);
-}
-
 static struct of_device_id amd7930_match[] = {
         {
                 .name = "audio",
@@ -1115,20 +1085,7 @@ static struct of_platform_driver amd7930_sbus_driver = {
 
 static int __init amd7930_init(void)
 {
-        struct device_node *dp;
-
-        /* Try to find the sun4c "audio" node first. */
-        dp = of_find_node_by_path("/");
-        dp = dp->child;
-        while (dp) {
-                if (!strcmp(dp->name, "audio"))
-                        amd7930_obio_attach(dp);
-
-                dp = dp->sibling;
-        }
-
-        /* Probe each SBUS for amd7930 chips. */
-        return of_register_driver(&amd7930_sbus_driver, &sbus_bus_type);
+        return of_register_driver(&amd7930_sbus_driver, &of_bus_type);
 }
 
 static void __exit amd7930_exit(void)