[SOUND] sparc: Port amd7930 to new SBUS device layer.

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

1 files changed, 77 insertions, 61 deletions

diff --git a/sound/sparc/amd7930.c b/sound/sparc/amd7930.c
index dfe9bac7fa32..ba1b2a3443d3 100644
--- a/sound/sparc/amd7930.c
+++ b/sound/sparc/amd7930.c
@@ -46,6 +46,7 @@
 #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 */
 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;       /* ID for this card */
@@ -335,7 +336,6 @@ struct snd_amd7930 {
         int                     pgain;
         int                     mgain;
 
-        struct sbus_dev         *sdev;
         unsigned int            irq;
         unsigned int            regs_size;
         struct snd_amd7930      *next;
@@ -946,11 +946,9 @@ static struct snd_device_ops snd_amd7930_dev_ops = {
 };
 
 static int __init snd_amd7930_create(struct snd_card *card,
-                                     struct sbus_dev *sdev,
                                      struct resource *rp,
                                      unsigned int reg_size,
-                                     struct linux_prom_irqs *irq_prop,
-                                     int dev,
+                                     int irq, int dev,
                                      struct snd_amd7930 **ramd)
 {
         unsigned long flags;
@@ -964,7 +962,6 @@ static int __init snd_amd7930_create(struct snd_card *card,
 
         spin_lock_init(&amd->lock);
         amd->card = card;
-        amd->sdev = sdev;
         amd->regs_size = reg_size;
 
         amd->regs = sbus_ioremap(rp, 0, amd->regs_size, "amd7930");
@@ -975,15 +972,14 @@ static int __init snd_amd7930_create(struct snd_card *card,
 
         amd7930_idle(amd);
 
-        if (request_irq(irq_prop->pri, snd_amd7930_interrupt,
+        if (request_irq(irq, snd_amd7930_interrupt,
                         SA_INTERRUPT | SA_SHIRQ, "amd7930", amd)) {
                 snd_printk("amd7930-%d: Unable to grab IRQ %d\n",
-                           dev,
-                           irq_prop->pri);
+                           dev, irq);
                 snd_amd7930_free(amd);
                 return -EBUSY;
         }
-        amd->irq = irq_prop->pri;
+        amd->irq = irq;
 
         amd7930_enable_ints(amd);
 
@@ -1017,47 +1013,21 @@ static int __init snd_amd7930_create(struct snd_card *card,
         return 0;
 }
 
-static int __init amd7930_attach(int prom_node, struct sbus_dev *sdev)
+static int __init amd7930_attach_common(struct resource *rp, int irq)
 {
-        static int dev;
-        struct linux_prom_registers reg_prop;
-        struct linux_prom_irqs irq_prop;
-        struct resource res, *rp;
+        static int dev_num;
         struct snd_card *card;
         struct snd_amd7930 *amd;
         int err;
 
-        if (dev >= SNDRV_CARDS)
+        if (dev_num >= SNDRV_CARDS)
                 return -ENODEV;
-        if (!enable[dev]) {
-                dev++;
+        if (!enable[dev_num]) {
+                dev_num++;
                 return -ENOENT;
         }
 
-        err = prom_getproperty(prom_node, "intr",
-                               (char *) &irq_prop, sizeof(irq_prop));
-        if (err < 0) {
-                snd_printk("amd7930-%d: Firmware node lacks IRQ property.\n", dev);
-                return -ENODEV;
-        }
-
-        err = prom_getproperty(prom_node, "reg",
-                               (char *) &reg_prop, sizeof(reg_prop));
-        if (err < 0) {
-                snd_printk("amd7930-%d: Firmware node lacks register property.\n", dev);
-                return -ENODEV;
-        }
-
-        if (sdev) {
-                rp = &sdev->resource[0];
-        } else {
-                rp = &res;
-                rp->start = reg_prop.phys_addr;
-                rp->end = rp->start + reg_prop.reg_size - 1;
-                rp->flags = IORESOURCE_IO | (reg_prop.which_io & 0xff);
-        }
-
-        card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
+        card = snd_card_new(index[dev_num], id[dev_num], THIS_MODULE, 0);
         if (card == NULL)
                 return -ENOMEM;
 
@@ -1067,10 +1037,11 @@ static int __init amd7930_attach(int prom_node, struct sbus_dev *sdev)
                 card->shortname,
                 rp->flags & 0xffL,
                 rp->start,
-                irq_prop.pri);
+                irq);
 
-        if ((err = snd_amd7930_create(card, sdev, rp, reg_prop.reg_size,
-                                          &irq_prop, dev, &amd)) < 0)
+        if ((err = snd_amd7930_create(card, rp,
+                                      (rp->end - rp->start) + 1,
+                                      irq, dev_num, &amd)) < 0)
                 goto out_err;
 
         if ((err = snd_amd7930_pcm(amd)) < 0)
@@ -1085,7 +1056,8 @@ static int __init amd7930_attach(int prom_node, struct sbus_dev *sdev)
         amd->next = amd7930_list;
         amd7930_list = amd;
 
-        dev++;
+        dev_num++;
+
         return 0;
 
 out_err:
@@ -1093,29 +1065,71 @@ out_err:
         return err;
 }
 
-static int __init amd7930_init(void)
+static int __init amd7930_obio_attach(struct device_node *dp)
+{
+        struct linux_prom_registers *regs;
+        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_bus *sbus;
-        struct sbus_dev *sdev;
-        int node, found;
+        struct sbus_dev *sdev = to_sbus_device(&dev->dev);
 
-        found = 0;
+        return amd7930_attach_common(&sdev->resource[0], sdev->irqs[0]);
+}
+
+static struct of_device_id amd7930_match[] = {
+        {
+                .name = "audio",
+        },
+        {},
+};
+
+static struct of_platform_driver amd7930_sbus_driver = {
+        .name           = "audio",
+        .match_table    = amd7930_match,
+        .probe          = amd7930_sbus_probe,
+};
+
+static int __init amd7930_init(void)
+{
+        struct device_node *dp;
 
         /* Try to find the sun4c "audio" node first. */
-        node = prom_getchild(prom_root_node);
-        node = prom_searchsiblings(node, "audio");
-        if (node && amd7930_attach(node, NULL) == 0)
-                found++;
+        dp = of_find_node_by_path("/");
+        dp = dp->child;
+        while (dp) {
+                if (!strcmp(dp->name, "audio"))
+                        amd7930_obio_attach(dp);
 
-        /* Probe each SBUS for amd7930 chips. */
-        for_all_sbusdev(sdev, sbus) {
-                if (!strcmp(sdev->prom_name, "audio")) {
-                        if (amd7930_attach(sdev->prom_node, sdev) == 0)
-                                found++;
-                }
+                dp = dp->sibling;
         }
 
-        return (found > 0) ? 0 : -EIO;
+        /* Probe each SBUS for amd7930 chips. */
+        return of_register_driver(&amd7930_sbus_driver, &sbus_bus_type);
 }
 
 static void __exit amd7930_exit(void)
@@ -1131,6 +1145,8 @@ static void __exit amd7930_exit(void)
         }
 
         amd7930_list = NULL;
+
+        of_unregister_driver(&amd7930_sbus_driver);
 }
 
 module_init(amd7930_init);