1 files changed, 81 insertions, 121 deletions

diff --git a/sound/sparc/cs4231.c b/sound/sparc/cs4231.c
index 1c4797be72e..d44bf98e965 100644
--- a/sound/sparc/cs4231.c
+++ b/sound/sparc/cs4231.c
@@ -1,6 +1,6 @@
 /*
  * Driver for CS4231 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/cs4231.c which is:
  * Copyright (C) 1996, 1997, 1998 Derrick J Brashear (shadow@andrew.cmu.edu)
@@ -17,7 +17,8 @@
 #include <linux/moduleparam.h>
 #include <linux/irq.h>
 #include <linux/io.h>
-
+#include <linux/of.h>
+#include <linux/of_device.h>
 
 #include <sound/core.h>
 #include <sound/pcm.h>
@@ -29,13 +30,12 @@
 
 #ifdef CONFIG_SBUS
 #define SBUS_SUPPORT
-#include <asm/sbus.h>
 #endif
 
 #if defined(CONFIG_PCI) && defined(CONFIG_SPARC64)
 #define EBUS_SUPPORT
 #include <linux/pci.h>
-#include <asm/ebus.h>
+#include <asm/ebus_dma.h>
 #endif
 
 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
@@ -70,8 +70,6 @@ struct cs4231_dma_control {
 	int		(*request)(struct cs4231_dma_control *dma_cont,
 				   dma_addr_t bus_addr, size_t len);
 	unsigned int	(*address)(struct cs4231_dma_control *dma_cont);
-	void		(*preallocate)(struct snd_cs4231 *chip,
-				       struct snd_pcm *pcm);
 #ifdef EBUS_SUPPORT
 	struct		ebus_dma_info	ebus_info;
 #endif
@@ -114,21 +112,12 @@ struct snd_cs4231 {
 	struct mutex		mce_mutex;	/* mutex for mce register */
 	struct mutex		open_mutex;	/* mutex for ALSA open/close */
 
-	union {
-#ifdef SBUS_SUPPORT
-		struct sbus_dev		*sdev;
-#endif
-#ifdef EBUS_SUPPORT
-		struct pci_dev		*pdev;
-#endif
-	} dev_u;
+	struct of_device	*op;
 	unsigned int		irq[2];
 	unsigned int		regs_size;
 	struct snd_cs4231	*next;
 };
 
-static struct snd_cs4231 *cs4231_list;
-
 /* Eventually we can use sound/isa/cs423x/cs4231_lib.c directly, but for
  * now....  -DaveM
  */
@@ -267,27 +256,19 @@ static unsigned char snd_cs4231_original_image[32] =
 
 static u8 __cs4231_readb(struct snd_cs4231 *cp, void __iomem *reg_addr)
 {
-#ifdef EBUS_SUPPORT
 	if (cp->flags & CS4231_FLAG_EBUS)
 		return readb(reg_addr);
 	else
-#endif
-#ifdef SBUS_SUPPORT
 		return sbus_readb(reg_addr);
-#endif
 }
 
 static void __cs4231_writeb(struct snd_cs4231 *cp, u8 val,
 			    void __iomem *reg_addr)
 {
-#ifdef EBUS_SUPPORT
 	if (cp->flags & CS4231_FLAG_EBUS)
 		return writeb(val, reg_addr);
 	else
-#endif
-#ifdef SBUS_SUPPORT
 		return sbus_writeb(val, reg_addr);
-#endif
 }
 
 /*
@@ -1258,7 +1239,9 @@ static int __init snd_cs4231_pcm(struct snd_card *card)
 	pcm->info_flags = SNDRV_PCM_INFO_JOINT_DUPLEX;
 	strcpy(pcm->name, "CS4231");
 
-	chip->p_dma.preallocate(chip, pcm);
+	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
+					      &chip->op->dev,
+					      64 * 1024, 128 * 1024);
 
 	chip->pcm = pcm;
 
@@ -1560,7 +1543,8 @@ static int __init snd_cs4231_mixer(struct snd_card *card)
 	struct snd_cs4231 *chip = card->private_data;
 	int err, idx;
 
-	snd_assert(chip != NULL && chip->pcm != NULL, return -EINVAL);
+	if (snd_BUG_ON(!chip || !chip->pcm))
+		return -EINVAL;
 
 	strcpy(card->mixername, chip->pcm->name);
 
@@ -1626,8 +1610,7 @@ static int __init cs4231_attach_finish(struct snd_card *card)
 	if (err < 0)
 		goto out_err;
 
-	chip->next = cs4231_list;
-	cs4231_list = chip;
+	dev_set_drvdata(&chip->op->dev, chip);
 
 	dev++;
 	return 0;
@@ -1782,24 +1765,19 @@ static unsigned int sbus_dma_addr(struct cs4231_dma_control *dma_cont)
 	return sbus_readl(base->regs + base->dir + APCVA);
 }
 
-static void sbus_dma_preallocate(struct snd_cs4231 *chip, struct snd_pcm *pcm)
-{
-	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_SBUS,
-					snd_dma_sbus_data(chip->dev_u.sdev),
-					64 * 1024, 128 * 1024);
-}
-
 /*
  * Init and exit routines
  */
 
 static int snd_cs4231_sbus_free(struct snd_cs4231 *chip)
 {
+	struct of_device *op = chip->op;
+
 	if (chip->irq[0])
 		free_irq(chip->irq[0], chip);
 
 	if (chip->port)
-		sbus_iounmap(chip->port, chip->regs_size);
+		of_iounmap(&op->resource[0], chip->port, chip->regs_size);
 
 	return 0;
 }
@@ -1816,7 +1794,7 @@ static struct snd_device_ops snd_cs4231_sbus_dev_ops = {
 };
 
 static int __init snd_cs4231_sbus_create(struct snd_card *card,
-					 struct sbus_dev *sdev,
+					 struct of_device *op,
 					 int dev)
 {
 	struct snd_cs4231 *chip = card->private_data;
@@ -1827,13 +1805,13 @@ static int __init snd_cs4231_sbus_create(struct snd_card *card,
 	spin_lock_init(&chip->p_dma.sbus_info.lock);
 	mutex_init(&chip->mce_mutex);
 	mutex_init(&chip->open_mutex);
-	chip->dev_u.sdev = sdev;
-	chip->regs_size = sdev->reg_addrs[0].reg_size;
+	chip->op = op;
+	chip->regs_size = resource_size(&op->resource[0]);
 	memcpy(&chip->image, &snd_cs4231_original_image,
 	       sizeof(snd_cs4231_original_image));
 
-	chip->port = sbus_ioremap(&sdev->resource[0], 0,
-				  chip->regs_size, "cs4231");
+	chip->port = of_ioremap(&op->resource[0], 0,
+				chip->regs_size, "cs4231");
 	if (!chip->port) {
 		snd_printdd("cs4231-%d: Unable to map chip registers.\n", dev);
 		return -EIO;
@@ -1848,22 +1826,20 @@ static int __init snd_cs4231_sbus_create(struct snd_card *card,
 	chip->p_dma.enable = sbus_dma_enable;
 	chip->p_dma.request = sbus_dma_request;
 	chip->p_dma.address = sbus_dma_addr;
-	chip->p_dma.preallocate = sbus_dma_preallocate;
 
 	chip->c_dma.prepare = sbus_dma_prepare;
 	chip->c_dma.enable = sbus_dma_enable;
 	chip->c_dma.request = sbus_dma_request;
 	chip->c_dma.address = sbus_dma_addr;
-	chip->c_dma.preallocate = sbus_dma_preallocate;
 
-	if (request_irq(sdev->irqs[0], snd_cs4231_sbus_interrupt,
+	if (request_irq(op->irqs[0], snd_cs4231_sbus_interrupt,
 			IRQF_SHARED, "cs4231", chip)) {
 		snd_printdd("cs4231-%d: Unable to grab SBUS IRQ %d\n",
-			    dev, sdev->irqs[0]);
+			    dev, op->irqs[0]);
 		snd_cs4231_sbus_free(chip);
 		return -EBUSY;
 	}
-	chip->irq[0] = sdev->irqs[0];
+	chip->irq[0] = op->irqs[0];
 
 	if (snd_cs4231_probe(chip) < 0) {
 		snd_cs4231_sbus_free(chip);
@@ -1880,9 +1856,9 @@ static int __init snd_cs4231_sbus_create(struct snd_card *card,
 	return 0;
 }
 
-static int __init cs4231_sbus_attach(struct sbus_dev *sdev)
+static int __devinit cs4231_sbus_probe(struct of_device *op, const struct of_device_id *match)
 {
-	struct resource *rp = &sdev->resource[0];
+	struct resource *rp = &op->resource[0];
 	struct snd_card *card;
 	int err;
 
@@ -1894,9 +1870,9 @@ static int __init cs4231_sbus_attach(struct sbus_dev *sdev)
 		card->shortname,
 		rp->flags & 0xffL,
 		(unsigned long long)rp->start,
-		sdev->irqs[0]);
+		op->irqs[0]);
 
-	err = snd_cs4231_sbus_create(card, sdev, dev);
+	err = snd_cs4231_sbus_create(card, op, dev);
 	if (err < 0) {
 		snd_card_free(card);
 		return err;
@@ -1949,30 +1925,25 @@ static unsigned int _ebus_dma_addr(struct cs4231_dma_control *dma_cont)
 	return ebus_dma_addr(&dma_cont->ebus_info);
 }
 
-static void _ebus_dma_preallocate(struct snd_cs4231 *chip, struct snd_pcm *pcm)
-{
-	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
-				      snd_dma_pci_data(chip->dev_u.pdev),
-				      64*1024, 128*1024);
-}
-
 /*
  * Init and exit routines
  */
 
 static int snd_cs4231_ebus_free(struct snd_cs4231 *chip)
 {
+	struct of_device *op = chip->op;
+
 	if (chip->c_dma.ebus_info.regs) {
 		ebus_dma_unregister(&chip->c_dma.ebus_info);
-		iounmap(chip->c_dma.ebus_info.regs);
+		of_iounmap(&op->resource[2], chip->c_dma.ebus_info.regs, 0x10);
 	}
 	if (chip->p_dma.ebus_info.regs) {
 		ebus_dma_unregister(&chip->p_dma.ebus_info);
-		iounmap(chip->p_dma.ebus_info.regs);
+		of_iounmap(&op->resource[1], chip->p_dma.ebus_info.regs, 0x10);
 	}
 
 	if (chip->port)
-		iounmap(chip->port);
+		of_iounmap(&op->resource[0], chip->port, 0x10);
 
 	return 0;
 }
@@ -1989,7 +1960,7 @@ static struct snd_device_ops snd_cs4231_ebus_dev_ops = {
 };
 
 static int __init snd_cs4231_ebus_create(struct snd_card *card,
-					 struct linux_ebus_device *edev,
+					 struct of_device *op,
 					 int dev)
 {
 	struct snd_cs4231 *chip = card->private_data;
@@ -2001,35 +1972,35 @@ static int __init snd_cs4231_ebus_create(struct snd_card *card,
 	mutex_init(&chip->mce_mutex);
 	mutex_init(&chip->open_mutex);
 	chip->flags |= CS4231_FLAG_EBUS;
-	chip->dev_u.pdev = edev->bus->self;
+	chip->op = op;
 	memcpy(&chip->image, &snd_cs4231_original_image,
 	       sizeof(snd_cs4231_original_image));
 	strcpy(chip->c_dma.ebus_info.name, "cs4231(capture)");
 	chip->c_dma.ebus_info.flags = EBUS_DMA_FLAG_USE_EBDMA_HANDLER;
 	chip->c_dma.ebus_info.callback = snd_cs4231_ebus_capture_callback;
 	chip->c_dma.ebus_info.client_cookie = chip;
-	chip->c_dma.ebus_info.irq = edev->irqs[0];
+	chip->c_dma.ebus_info.irq = op->irqs[0];
 	strcpy(chip->p_dma.ebus_info.name, "cs4231(play)");
 	chip->p_dma.ebus_info.flags = EBUS_DMA_FLAG_USE_EBDMA_HANDLER;
 	chip->p_dma.ebus_info.callback = snd_cs4231_ebus_play_callback;
 	chip->p_dma.ebus_info.client_cookie = chip;
-	chip->p_dma.ebus_info.irq = edev->irqs[1];
+	chip->p_dma.ebus_info.irq = op->irqs[1];
 
 	chip->p_dma.prepare = _ebus_dma_prepare;
 	chip->p_dma.enable = _ebus_dma_enable;
 	chip->p_dma.request = _ebus_dma_request;
 	chip->p_dma.address = _ebus_dma_addr;
-	chip->p_dma.preallocate = _ebus_dma_preallocate;
 
 	chip->c_dma.prepare = _ebus_dma_prepare;
 	chip->c_dma.enable = _ebus_dma_enable;
 	chip->c_dma.request = _ebus_dma_request;
 	chip->c_dma.address = _ebus_dma_addr;
-	chip->c_dma.preallocate = _ebus_dma_preallocate;
 
-	chip->port = ioremap(edev->resource[0].start, 0x10);
-	chip->p_dma.ebus_info.regs = ioremap(edev->resource[1].start, 0x10);
-	chip->c_dma.ebus_info.regs = ioremap(edev->resource[2].start, 0x10);
+	chip->port = of_ioremap(&op->resource[0], 0, 0x10, "cs4231");
+	chip->p_dma.ebus_info.regs =
+		of_ioremap(&op->resource[1], 0, 0x10, "cs4231_pdma");
+	chip->c_dma.ebus_info.regs =
+		of_ioremap(&op->resource[2], 0, 0x10, "cs4231_cdma");
 	if (!chip->port || !chip->p_dma.ebus_info.regs ||
 	    !chip->c_dma.ebus_info.regs) {
 		snd_cs4231_ebus_free(chip);
@@ -2077,7 +2048,7 @@ static int __init snd_cs4231_ebus_create(struct snd_card *card,
 	return 0;
 }
 
-static int __init cs4231_ebus_attach(struct linux_ebus_device *edev)
+static int __devinit cs4231_ebus_probe(struct of_device *op, const struct of_device_id *match)
 {
 	struct snd_card *card;
 	int err;
@@ -2088,10 +2059,10 @@ static int __init cs4231_ebus_attach(struct linux_ebus_device *edev)
 
 	sprintf(card->longname, "%s at 0x%lx, irq %d",
 		card->shortname,
-		edev->resource[0].start,
-		edev->irqs[0]);
+		op->resource[0].start,
+		op->irqs[0]);
 
-	err = snd_cs4231_ebus_create(card, edev, dev);
+	err = snd_cs4231_ebus_create(card, op, dev);
 	if (err < 0) {
 		snd_card_free(card);
 		return err;
@@ -2101,68 +2072,57 @@ static int __init cs4231_ebus_attach(struct linux_ebus_device *edev)
 }
 #endif
 
-static int __init cs4231_init(void)
+static int __devinit cs4231_probe(struct of_device *op, const struct of_device_id *match)
 {
-#ifdef SBUS_SUPPORT
-	struct sbus_bus *sbus;
-	struct sbus_dev *sdev;
-#endif
 #ifdef EBUS_SUPPORT
-	struct linux_ebus *ebus;
-	struct linux_ebus_device *edev;
+	if (!strcmp(op->node->parent->name, "ebus"))
+		return cs4231_ebus_probe(op, match);
 #endif
-	int found;
-
-	found = 0;
-
 #ifdef SBUS_SUPPORT
-	for_all_sbusdev(sdev, sbus) {
-		if (!strcmp(sdev->prom_name, "SUNW,CS4231")) {
-			if (cs4231_sbus_attach(sdev) == 0)
-				found++;
-		}
-	}
+	if (!strcmp(op->node->parent->name, "sbus") ||
+	    !strcmp(op->node->parent->name, "sbi"))
+		return cs4231_sbus_probe(op, match);
 #endif
-#ifdef EBUS_SUPPORT
-	for_each_ebus(ebus) {
-		for_each_ebusdev(edev, ebus) {
-			int match = 0;
-
-			if (!strcmp(edev->prom_node->name, "SUNW,CS4231")) {
-				match = 1;
-			} else if (!strcmp(edev->prom_node->name, "audio")) {
-				const char *compat;
-
-				compat = of_get_property(edev->prom_node,
-							 "compatible", NULL);
-				if (compat && !strcmp(compat, "SUNW,CS4231"))
-					match = 1;
-			}
+	return -ENODEV;
+}
 
-			if (match &&
-			    cs4231_ebus_attach(edev) == 0)
-				found++;
-		}
-	}
-#endif
+static int __devexit cs4231_remove(struct of_device *op)
+{
+	struct snd_cs4231 *chip = dev_get_drvdata(&op->dev);
 
+	snd_card_free(chip->card);
 
-	return (found > 0) ? 0 : -EIO;
+	return 0;
 }
 
-static void __exit cs4231_exit(void)
-{
-	struct snd_cs4231 *p = cs4231_list;
+static const struct of_device_id cs4231_match[] = {
+	{
+		.name = "SUNW,CS4231",
+	},
+	{
+		.name = "audio",
+		.compatible = "SUNW,CS4231",
+	},
+	{},
+};
 
-	while (p != NULL) {
-		struct snd_cs4231 *next = p->next;
+MODULE_DEVICE_TABLE(of, cs4231_match);
 
-		snd_card_free(p->card);
+static struct of_platform_driver cs4231_driver = {
+	.name		= "audio",
+	.match_table	= cs4231_match,
+	.probe		= cs4231_probe,
+	.remove		= __devexit_p(cs4231_remove),
+};
 
-		p = next;
-	}
+static int __init cs4231_init(void)
+{
+	return of_register_driver(&cs4231_driver, &of_bus_type);
+}
 
-	cs4231_list = NULL;
+static void __exit cs4231_exit(void)
+{
+	of_unregister_driver(&cs4231_driver);
 }
 
 module_init(cs4231_init);