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authorDavid S. Miller <davem@davemloft.net>2008-08-27 00:29:27 -0700
committerDavid S. Miller <davem@davemloft.net>2008-08-29 02:14:46 -0700
commitdc8aa2e9d6c965c11ddd05fca721b2218585b9f0 (patch)
tree0e66563dad8f7b9885354a462cee0e3c2078f3e0 /sound/sparc
parent5dc2536bb8d8adb5fdfbe76cd6fdcdf9de3f40f8 (diff)
amd7930: Convert to pure OF driver.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'sound/sparc')
-rw-r--r--sound/sparc/amd7930.c83
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)

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