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amd7930: Convert to pure OF driver.
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
parent
5dc2536bb8
commit
dc8aa2e9d6
1 changed files with 20 additions and 63 deletions
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@ -1,6 +1,6 @@
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/*
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* Driver for AMD7930 sound chips found on Sparcs.
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* Copyright (C) 2002 David S. Miller <davem@redhat.com>
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* Copyright (C) 2002, 2008 David S. Miller <davem@davemloft.net>
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*
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* Based entirely upon drivers/sbus/audio/amd7930.c which is:
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* Copyright (C) 1996,1997 Thomas K. Dyas (tdyas@eden.rutgers.edu)
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@ -35,6 +35,8 @@
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#include <linux/init.h>
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#include <linux/interrupt.h>
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#include <linux/moduleparam.h>
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#include <linux/of.h>
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#include <linux/of_device.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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@ -44,7 +46,6 @@
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#include <asm/io.h>
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#include <asm/irq.h>
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#include <asm/sbus.h>
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#include <asm/prom.h>
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static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
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@ -335,8 +336,8 @@ struct snd_amd7930 {
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int pgain;
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int mgain;
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struct of_device *op;
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unsigned int irq;
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unsigned int regs_size;
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struct snd_amd7930 *next;
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};
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@ -920,13 +921,16 @@ static int __devinit snd_amd7930_mixer(struct snd_amd7930 *amd)
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static int snd_amd7930_free(struct snd_amd7930 *amd)
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{
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struct of_device *op = amd->op;
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amd7930_idle(amd);
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if (amd->irq)
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free_irq(amd->irq, amd);
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if (amd->regs)
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sbus_iounmap(amd->regs, amd->regs_size);
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of_iounmap(&op->resource[0], amd->regs,
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resource_size(&op->resource[0]));
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kfree(amd);
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@ -945,13 +949,12 @@ static struct snd_device_ops snd_amd7930_dev_ops = {
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};
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static int __devinit snd_amd7930_create(struct snd_card *card,
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struct resource *rp,
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unsigned int reg_size,
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struct of_device *op,
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int irq, int dev,
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struct snd_amd7930 **ramd)
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{
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unsigned long flags;
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struct snd_amd7930 *amd;
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unsigned long flags;
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int err;
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*ramd = NULL;
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@ -961,9 +964,10 @@ static int __devinit snd_amd7930_create(struct snd_card *card,
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spin_lock_init(&amd->lock);
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amd->card = card;
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amd->regs_size = reg_size;
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amd->op = op;
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amd->regs = sbus_ioremap(rp, 0, amd->regs_size, "amd7930");
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amd->regs = of_ioremap(&op->resource[0], 0,
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resource_size(&op->resource[0]), "amd7930");
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if (!amd->regs) {
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snd_printk("amd7930-%d: Unable to map chip registers.\n", dev);
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return -EIO;
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@ -1012,12 +1016,15 @@ static int __devinit snd_amd7930_create(struct snd_card *card,
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return 0;
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}
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static int __devinit amd7930_attach_common(struct resource *rp, int irq)
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static int __devinit amd7930_sbus_probe(struct of_device *op, const struct of_device_id *match)
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{
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struct resource *rp = &op->resource[0];
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static int dev_num;
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struct snd_card *card;
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struct snd_amd7930 *amd;
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int err;
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int err, irq;
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irq = op->irqs[0];
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if (dev_num >= SNDRV_CARDS)
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return -ENODEV;
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@ -1038,8 +1045,7 @@ static int __devinit amd7930_attach_common(struct resource *rp, int irq)
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(unsigned long long)rp->start,
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irq);
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if ((err = snd_amd7930_create(card, rp,
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(rp->end - rp->start) + 1,
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if ((err = snd_amd7930_create(card, op,
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irq, dev_num, &amd)) < 0)
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goto out_err;
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@ -1064,42 +1070,6 @@ out_err:
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return err;
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}
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static int __devinit amd7930_obio_attach(struct device_node *dp)
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{
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const struct linux_prom_registers *regs;
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const struct linux_prom_irqs *irqp;
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struct resource res, *rp;
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int len;
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irqp = of_get_property(dp, "intr", &len);
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if (!irqp) {
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snd_printk("%s: Firmware node lacks IRQ property.\n",
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dp->full_name);
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return -ENODEV;
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}
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regs = of_get_property(dp, "reg", &len);
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if (!regs) {
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snd_printk("%s: Firmware node lacks register property.\n",
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dp->full_name);
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return -ENODEV;
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}
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rp = &res;
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rp->start = regs->phys_addr;
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rp->end = rp->start + regs->reg_size - 1;
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rp->flags = IORESOURCE_IO | (regs->which_io & 0xff);
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return amd7930_attach_common(rp, irqp->pri);
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}
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static int __devinit amd7930_sbus_probe(struct of_device *dev, const struct of_device_id *match)
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{
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struct sbus_dev *sdev = to_sbus_device(&dev->dev);
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return amd7930_attach_common(&sdev->resource[0], sdev->irqs[0]);
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}
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static struct of_device_id amd7930_match[] = {
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{
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.name = "audio",
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@ -1115,20 +1085,7 @@ static struct of_platform_driver amd7930_sbus_driver = {
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static int __init amd7930_init(void)
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{
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struct device_node *dp;
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/* Try to find the sun4c "audio" node first. */
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dp = of_find_node_by_path("/");
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dp = dp->child;
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while (dp) {
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if (!strcmp(dp->name, "audio"))
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amd7930_obio_attach(dp);
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dp = dp->sibling;
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}
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/* Probe each SBUS for amd7930 chips. */
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return of_register_driver(&amd7930_sbus_driver, &sbus_bus_type);
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return of_register_driver(&amd7930_sbus_driver, &of_bus_type);
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}
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static void __exit amd7930_exit(void)
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