cs4231: Convert SBUS side to OF driver.
Signed-off-by: David S. Miller <davem@davemloft.net>hifive-unleashed-5.1
David S. Miller
parent
759ee81be6
commit
ae251031ad
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@ -1,6 +1,6 @@
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/*
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* Driver for CS4231 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/cs4231.c which is:
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* Copyright (C) 1996, 1997, 1998 Derrick J Brashear (shadow@andrew.cmu.edu)
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@ -17,7 +17,8 @@
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#include <linux/moduleparam.h>
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#include <linux/irq.h>
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#include <linux/io.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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@ -29,7 +30,6 @@
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#ifdef CONFIG_SBUS
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#define SBUS_SUPPORT
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#include <asm/sbus.h>
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#endif
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#if defined(CONFIG_PCI) && defined(CONFIG_SPARC64)
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@ -116,7 +116,7 @@ struct snd_cs4231 {
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union {
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#ifdef SBUS_SUPPORT
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struct sbus_dev *sdev;
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struct of_device *op;
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#endif
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#ifdef EBUS_SUPPORT
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struct pci_dev *pdev;
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@ -1785,7 +1785,7 @@ static unsigned int sbus_dma_addr(struct cs4231_dma_control *dma_cont)
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static void sbus_dma_preallocate(struct snd_cs4231 *chip, struct snd_pcm *pcm)
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{
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snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
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&chip->dev_u.sdev->ofdev.dev,
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&chip->dev_u.op->dev,
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64 * 1024, 128 * 1024);
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}
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@ -1795,11 +1795,13 @@ static void sbus_dma_preallocate(struct snd_cs4231 *chip, struct snd_pcm *pcm)
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static int snd_cs4231_sbus_free(struct snd_cs4231 *chip)
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{
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struct of_device *op = chip->dev_u.op;
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if (chip->irq[0])
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free_irq(chip->irq[0], chip);
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if (chip->port)
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sbus_iounmap(chip->port, chip->regs_size);
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of_iounmap(&op->resource[0], chip->port, chip->regs_size);
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return 0;
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}
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@ -1816,7 +1818,7 @@ static struct snd_device_ops snd_cs4231_sbus_dev_ops = {
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};
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static int __init snd_cs4231_sbus_create(struct snd_card *card,
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struct sbus_dev *sdev,
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struct of_device *op,
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int dev)
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{
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struct snd_cs4231 *chip = card->private_data;
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@ -1827,13 +1829,13 @@ static int __init snd_cs4231_sbus_create(struct snd_card *card,
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spin_lock_init(&chip->p_dma.sbus_info.lock);
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mutex_init(&chip->mce_mutex);
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mutex_init(&chip->open_mutex);
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chip->dev_u.sdev = sdev;
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chip->regs_size = sdev->reg_addrs[0].reg_size;
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chip->dev_u.op = op;
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chip->regs_size = resource_size(&op->resource[0]);
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memcpy(&chip->image, &snd_cs4231_original_image,
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sizeof(snd_cs4231_original_image));
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chip->port = sbus_ioremap(&sdev->resource[0], 0,
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chip->regs_size, "cs4231");
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chip->port = of_ioremap(&op->resource[0], 0,
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chip->regs_size, "cs4231");
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if (!chip->port) {
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snd_printdd("cs4231-%d: Unable to map chip registers.\n", dev);
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return -EIO;
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@ -1856,14 +1858,14 @@ static int __init snd_cs4231_sbus_create(struct snd_card *card,
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chip->c_dma.address = sbus_dma_addr;
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chip->c_dma.preallocate = sbus_dma_preallocate;
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if (request_irq(sdev->irqs[0], snd_cs4231_sbus_interrupt,
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if (request_irq(op->irqs[0], snd_cs4231_sbus_interrupt,
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IRQF_SHARED, "cs4231", chip)) {
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snd_printdd("cs4231-%d: Unable to grab SBUS IRQ %d\n",
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dev, sdev->irqs[0]);
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dev, op->irqs[0]);
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snd_cs4231_sbus_free(chip);
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return -EBUSY;
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}
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chip->irq[0] = sdev->irqs[0];
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chip->irq[0] = op->irqs[0];
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if (snd_cs4231_probe(chip) < 0) {
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snd_cs4231_sbus_free(chip);
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@ -1880,12 +1882,16 @@ static int __init snd_cs4231_sbus_create(struct snd_card *card,
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return 0;
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}
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static int __init cs4231_sbus_attach(struct sbus_dev *sdev)
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static int __devinit cs4231_probe(struct of_device *op, const struct of_device_id *match)
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{
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struct resource *rp = &sdev->resource[0];
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struct resource *rp = &op->resource[0];
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struct snd_card *card;
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int err;
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if (strcmp(op->node->parent->name, "sbus") &&
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strcmp(op->node->parent->name, "sbi"))
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return -ENODEV;
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err = cs4231_attach_begin(&card);
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if (err)
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return err;
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@ -1894,9 +1900,9 @@ static int __init cs4231_sbus_attach(struct sbus_dev *sdev)
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card->shortname,
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rp->flags & 0xffL,
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(unsigned long long)rp->start,
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sdev->irqs[0]);
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op->irqs[0]);
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err = snd_cs4231_sbus_create(card, sdev, dev);
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err = snd_cs4231_sbus_create(card, op, dev);
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if (err < 0) {
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snd_card_free(card);
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return err;
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@ -2101,12 +2107,25 @@ static int __init cs4231_ebus_attach(struct linux_ebus_device *edev)
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}
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#endif
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#ifdef SBUS_SUPPORT
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static struct of_device_id cs4231_match[] = {
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{
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.name = "SUNW,CS4231",
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},
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{},
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};
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MODULE_DEVICE_TABLE(of, cs4231_match);
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static struct of_platform_driver cs4231_driver = {
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.name = "audio",
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.match_table = cs4231_match,
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.probe = cs4231_probe,
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};
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#endif
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static int __init cs4231_init(void)
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{
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#ifdef SBUS_SUPPORT
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struct sbus_bus *sbus;
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struct sbus_dev *sdev;
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#endif
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#ifdef EBUS_SUPPORT
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struct linux_ebus *ebus;
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struct linux_ebus_device *edev;
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@ -2116,11 +2135,10 @@ static int __init cs4231_init(void)
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found = 0;
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#ifdef SBUS_SUPPORT
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for_all_sbusdev(sdev, sbus) {
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if (!strcmp(sdev->prom_name, "SUNW,CS4231")) {
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if (cs4231_sbus_attach(sdev) == 0)
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found++;
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}
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{
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int err = of_register_driver(&cs4231_driver, &of_bus_type);
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if (err)
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return err;
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}
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#endif
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#ifdef EBUS_SUPPORT
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@ -2147,13 +2165,17 @@ static int __init cs4231_init(void)
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#endif
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return (found > 0) ? 0 : -EIO;
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return 0;
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}
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static void __exit cs4231_exit(void)
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{
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struct snd_cs4231 *p = cs4231_list;
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#ifdef SBUS_SUPPORT
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of_unregister_driver(&cs4231_driver);
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#endif
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while (p != NULL) {
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struct snd_cs4231 *next = p->next;
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