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author | David S. Miller <davem@sunset.davemloft.net> | 2006-06-23 16:23:12 -0700 |
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committer | David S. Miller <davem@sunset.davemloft.net> | 2006-06-23 23:15:52 -0700 |
commit | 69b5c4f18b2ceab3da9e854d02f8d9a2aa5b8431 (patch) | |
tree | c95b10216256a209de6ab3150eccf60ec0f2e116 /sound/sparc/amd7930.c | |
parent | 576c352e89e57cfa6c9f493e549d10d86f60a0cf (diff) | |
download | linux-next-69b5c4f18b2ceab3da9e854d02f8d9a2aa5b8431.tar.gz |
[SOUND] sparc: Port amd7930 to new SBUS device layer.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'sound/sparc/amd7930.c')
-rw-r--r-- | sound/sparc/amd7930.c | 138 |
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 *) ®_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); |