1 files changed, 0 insertions, 585 deletions
diff --git a/sound/pci/hda/hda_tegra.c b/sound/pci/hda/hda_tegra.c
deleted file mode 100644
index 97a176d817a0..000000000000
--- a/sound/pci/hda/hda_tegra.c
+++ /dev/null
@@ -1,585 +0,0 @@
-/*
- *
- * Implementation of primary ALSA driver code base for NVIDIA Tegra HDA.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-#include <linux/clk.h>
-#include <linux/clocksource.h>
-#include <linux/completion.h>
-#include <linux/delay.h>
-#include <linux/dma-mapping.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/mutex.h>
-#include <linux/of_device.h>
-#include <linux/slab.h>
-#include <linux/time.h>
-#include <linux/string.h>
-
-#include <sound/core.h>
-#include <sound/initval.h>
-
-#include <sound/hda_codec.h>
-#include "hda_controller.h"
-
-/* Defines for Nvidia Tegra HDA support */
-#define HDA_BAR0           0x8000
-
-#define HDA_CFG_CMD        0x1004
-#define HDA_CFG_BAR0       0x1010
-
-#define HDA_ENABLE_IO_SPACE       (1 << 0)
-#define HDA_ENABLE_MEM_SPACE      (1 << 1)
-#define HDA_ENABLE_BUS_MASTER     (1 << 2)
-#define HDA_ENABLE_SERR           (1 << 8)
-#define HDA_DISABLE_INTR          (1 << 10)
-#define HDA_BAR0_INIT_PROGRAM     0xFFFFFFFF
-#define HDA_BAR0_FINAL_PROGRAM    (1 << 14)
-
-/* IPFS */
-#define HDA_IPFS_CONFIG           0x180
-#define HDA_IPFS_EN_FPCI          0x1
-
-#define HDA_IPFS_FPCI_BAR0        0x80
-#define HDA_FPCI_BAR0_START       0x40
-
-#define HDA_IPFS_INTR_MASK        0x188
-#define HDA_IPFS_EN_INTR          (1 << 16)
-
-/* max number of SDs */
-#define NUM_CAPTURE_SD 1
-#define NUM_PLAYBACK_SD 1
-
-struct hda_tegra {
-	struct azx chip;
-	struct device *dev;
-	struct clk *hda_clk;
-	struct clk *hda2codec_2x_clk;
-	struct clk *hda2hdmi_clk;
-	void __iomem *regs;
-	struct work_struct probe_work;
-};
-
-#ifdef CONFIG_PM
-static int power_save = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
-module_param(power_save, bint, 0644);
-MODULE_PARM_DESC(power_save,
-		 "Automatic power-saving timeout (in seconds, 0 = disable).");
-#else
-#define power_save	0
-#endif
-
-/*
- * DMA page allocation ops.
- */
-static int dma_alloc_pages(struct hdac_bus *bus, int type, size_t size,
-			   struct snd_dma_buffer *buf)
-{
-	return snd_dma_alloc_pages(type, bus->dev, size, buf);
-}
-
-static void dma_free_pages(struct hdac_bus *bus, struct snd_dma_buffer *buf)
-{
-	snd_dma_free_pages(buf);
-}
-
-/*
- * Register access ops. Tegra HDA register access is DWORD only.
- */
-static void hda_tegra_writel(u32 value, u32 __iomem *addr)
-{
-	writel(value, addr);
-}
-
-static u32 hda_tegra_readl(u32 __iomem *addr)
-{
-	return readl(addr);
-}
-
-static void hda_tegra_writew(u16 value, u16 __iomem  *addr)
-{
-	unsigned int shift = ((unsigned long)(addr) & 0x3) << 3;
-	void __iomem *dword_addr = (void __iomem *)((unsigned long)(addr) & ~0x3);
-	u32 v;
-
-	v = readl(dword_addr);
-	v &= ~(0xffff << shift);
-	v |= value << shift;
-	writel(v, dword_addr);
-}
-
-static u16 hda_tegra_readw(u16 __iomem *addr)
-{
-	unsigned int shift = ((unsigned long)(addr) & 0x3) << 3;
-	void __iomem *dword_addr = (void __iomem *)((unsigned long)(addr) & ~0x3);
-	u32 v;
-
-	v = readl(dword_addr);
-	return (v >> shift) & 0xffff;
-}
-
-static void hda_tegra_writeb(u8 value, u8 __iomem *addr)
-{
-	unsigned int shift = ((unsigned long)(addr) & 0x3) << 3;
-	void __iomem *dword_addr = (void __iomem *)((unsigned long)(addr) & ~0x3);
-	u32 v;
-
-	v = readl(dword_addr);
-	v &= ~(0xff << shift);
-	v |= value << shift;
-	writel(v, dword_addr);
-}
-
-static u8 hda_tegra_readb(u8 __iomem *addr)
-{
-	unsigned int shift = ((unsigned long)(addr) & 0x3) << 3;
-	void __iomem *dword_addr = (void __iomem *)((unsigned long)(addr) & ~0x3);
-	u32 v;
-
-	v = readl(dword_addr);
-	return (v >> shift) & 0xff;
-}
-
-static const struct hdac_io_ops hda_tegra_io_ops = {
-	.reg_writel = hda_tegra_writel,
-	.reg_readl = hda_tegra_readl,
-	.reg_writew = hda_tegra_writew,
-	.reg_readw = hda_tegra_readw,
-	.reg_writeb = hda_tegra_writeb,
-	.reg_readb = hda_tegra_readb,
-	.dma_alloc_pages = dma_alloc_pages,
-	.dma_free_pages = dma_free_pages,
-};
-
-static const struct hda_controller_ops hda_tegra_ops; /* nothing special */
-
-static void hda_tegra_init(struct hda_tegra *hda)
-{
-	u32 v;
-
-	/* Enable PCI access */
-	v = readl(hda->regs + HDA_IPFS_CONFIG);
-	v |= HDA_IPFS_EN_FPCI;
-	writel(v, hda->regs + HDA_IPFS_CONFIG);
-
-	/* Enable MEM/IO space and bus master */
-	v = readl(hda->regs + HDA_CFG_CMD);
-	v &= ~HDA_DISABLE_INTR;
-	v |= HDA_ENABLE_MEM_SPACE | HDA_ENABLE_IO_SPACE |
-		HDA_ENABLE_BUS_MASTER | HDA_ENABLE_SERR;
-	writel(v, hda->regs + HDA_CFG_CMD);
-
-	writel(HDA_BAR0_INIT_PROGRAM, hda->regs + HDA_CFG_BAR0);
-	writel(HDA_BAR0_FINAL_PROGRAM, hda->regs + HDA_CFG_BAR0);
-	writel(HDA_FPCI_BAR0_START, hda->regs + HDA_IPFS_FPCI_BAR0);
-
-	v = readl(hda->regs + HDA_IPFS_INTR_MASK);
-	v |= HDA_IPFS_EN_INTR;
-	writel(v, hda->regs + HDA_IPFS_INTR_MASK);
-}
-
-static int hda_tegra_enable_clocks(struct hda_tegra *data)
-{
-	int rc;
-
-	rc = clk_prepare_enable(data->hda_clk);
-	if (rc)
-		return rc;
-	rc = clk_prepare_enable(data->hda2codec_2x_clk);
-	if (rc)
-		goto disable_hda;
-	rc = clk_prepare_enable(data->hda2hdmi_clk);
-	if (rc)
-		goto disable_codec_2x;
-
-	return 0;
-
-disable_codec_2x:
-	clk_disable_unprepare(data->hda2codec_2x_clk);
-disable_hda:
-	clk_disable_unprepare(data->hda_clk);
-	return rc;
-}
-
-#ifdef CONFIG_PM_SLEEP
-static void hda_tegra_disable_clocks(struct hda_tegra *data)
-{
-	clk_disable_unprepare(data->hda2hdmi_clk);
-	clk_disable_unprepare(data->hda2codec_2x_clk);
-	clk_disable_unprepare(data->hda_clk);
-}
-
-/*
- * power management
- */
-static int hda_tegra_suspend(struct device *dev)
-{
-	struct snd_card *card = dev_get_drvdata(dev);
-	struct azx *chip = card->private_data;
-	struct hda_tegra *hda = container_of(chip, struct hda_tegra, chip);
-	struct hdac_bus *bus = azx_bus(chip);
-
-	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
-
-	azx_stop_chip(chip);
-	synchronize_irq(bus->irq);
-	azx_enter_link_reset(chip);
-	hda_tegra_disable_clocks(hda);
-
-	return 0;
-}
-
-static int hda_tegra_resume(struct device *dev)
-{
-	struct snd_card *card = dev_get_drvdata(dev);
-	struct azx *chip = card->private_data;
-	struct hda_tegra *hda = container_of(chip, struct hda_tegra, chip);
-
-	hda_tegra_enable_clocks(hda);
-
-	hda_tegra_init(hda);
-
-	azx_init_chip(chip, 1);
-
-	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
-
-	return 0;
-}
-#endif /* CONFIG_PM_SLEEP */
-
-static const struct dev_pm_ops hda_tegra_pm = {
-	SET_SYSTEM_SLEEP_PM_OPS(hda_tegra_suspend, hda_tegra_resume)
-};
-
-static int hda_tegra_dev_disconnect(struct snd_device *device)
-{
-	struct azx *chip = device->device_data;
-
-	chip->bus.shutdown = 1;
-	return 0;
-}
-
-/*
- * destructor
- */
-static int hda_tegra_dev_free(struct snd_device *device)
-{
-	struct azx *chip = device->device_data;
-	struct hda_tegra *hda = container_of(chip, struct hda_tegra, chip);
-
-	cancel_work_sync(&hda->probe_work);
-	if (azx_bus(chip)->chip_init) {
-		azx_stop_all_streams(chip);
-		azx_stop_chip(chip);
-	}
-
-	azx_free_stream_pages(chip);
-	azx_free_streams(chip);
-	snd_hdac_bus_exit(azx_bus(chip));
-
-	return 0;
-}
-
-static int hda_tegra_init_chip(struct azx *chip, struct platform_device *pdev)
-{
-	struct hda_tegra *hda = container_of(chip, struct hda_tegra, chip);
-	struct hdac_bus *bus = azx_bus(chip);
-	struct device *dev = hda->dev;
-	struct resource *res;
-	int err;
-
-	hda->hda_clk = devm_clk_get(dev, "hda");
-	if (IS_ERR(hda->hda_clk)) {
-		dev_err(dev, "failed to get hda clock\n");
-		return PTR_ERR(hda->hda_clk);
-	}
-	hda->hda2codec_2x_clk = devm_clk_get(dev, "hda2codec_2x");
-	if (IS_ERR(hda->hda2codec_2x_clk)) {
-		dev_err(dev, "failed to get hda2codec_2x clock\n");
-		return PTR_ERR(hda->hda2codec_2x_clk);
-	}
-	hda->hda2hdmi_clk = devm_clk_get(dev, "hda2hdmi");
-	if (IS_ERR(hda->hda2hdmi_clk)) {
-		dev_err(dev, "failed to get hda2hdmi clock\n");
-		return PTR_ERR(hda->hda2hdmi_clk);
-	}
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	hda->regs = devm_ioremap_resource(dev, res);
-	if (IS_ERR(hda->regs))
-		return PTR_ERR(hda->regs);
-
-	bus->remap_addr = hda->regs + HDA_BAR0;
-	bus->addr = res->start + HDA_BAR0;
-
-	err = hda_tegra_enable_clocks(hda);
-	if (err) {
-		dev_err(dev, "failed to get enable clocks\n");
-		return err;
-	}
-
-	hda_tegra_init(hda);
-
-	return 0;
-}
-
-static int hda_tegra_first_init(struct azx *chip, struct platform_device *pdev)
-{
-	struct hdac_bus *bus = azx_bus(chip);
-	struct snd_card *card = chip->card;
-	int err;
-	unsigned short gcap;
-	int irq_id = platform_get_irq(pdev, 0);
-	const char *sname;
-	struct device_node *root;
-
-	err = hda_tegra_init_chip(chip, pdev);
-	if (err)
-		return err;
-
-	err = devm_request_irq(chip->card->dev, irq_id, azx_interrupt,
-			     IRQF_SHARED, KBUILD_MODNAME, chip);
-	if (err) {
-		dev_err(chip->card->dev,
-			"unable to request IRQ %d, disabling device\n",
-			irq_id);
-		return err;
-	}
-	bus->irq = irq_id;
-
-	synchronize_irq(bus->irq);
-
-	gcap = azx_readw(chip, GCAP);
-	dev_dbg(card->dev, "chipset global capabilities = 0x%x\n", gcap);
-
-	/* read number of streams from GCAP register instead of using
-	 * hardcoded value
-	 */
-	chip->capture_streams = (gcap >> 8) & 0x0f;
-	chip->playback_streams = (gcap >> 12) & 0x0f;
-	if (!chip->playback_streams && !chip->capture_streams) {
-		/* gcap didn't give any info, switching to old method */
-		chip->playback_streams = NUM_PLAYBACK_SD;
-		chip->capture_streams = NUM_CAPTURE_SD;
-	}
-	chip->capture_index_offset = 0;
-	chip->playback_index_offset = chip->capture_streams;
-	chip->num_streams = chip->playback_streams + chip->capture_streams;
-
-	/* initialize streams */
-	err = azx_init_streams(chip);
-	if (err < 0) {
-		dev_err(card->dev, "failed to initialize streams: %d\n", err);
-		return err;
-	}
-
-	err = azx_alloc_stream_pages(chip);
-	if (err < 0) {
-		dev_err(card->dev, "failed to allocate stream pages: %d\n",
-			err);
-		return err;
-	}
-
-	/* initialize chip */
-	azx_init_chip(chip, 1);
-
-	/* codec detection */
-	if (!bus->codec_mask) {
-		dev_err(card->dev, "no codecs found!\n");
-		return -ENODEV;
-	}
-
-	/* driver name */
-	strcpy(card->driver, "tegra-hda");
-
-	root = of_find_node_by_path("/");
-	sname = of_get_property(root, "compatible", NULL);
-	of_node_put(root);
-	if (!sname) {
-		dev_err(card->dev,
-			"failed to get compatible property from root node\n");
-		return -ENODEV;
-	}
-	/* shortname for card */
-	if (strlen(sname) > sizeof(card->shortname))
-		dev_info(card->dev, "truncating shortname for card\n");
-	strncpy(card->shortname, sname, sizeof(card->shortname));
-
-	/* longname for card */
-	snprintf(card->longname, sizeof(card->longname),
-		 "%s at 0x%lx irq %i",
-		 card->shortname, bus->addr, bus->irq);
-
-	return 0;
-}
-
-/*
- * constructor
- */
-
-static void hda_tegra_probe_work(struct work_struct *work);
-
-static int hda_tegra_create(struct snd_card *card,
-			    unsigned int driver_caps,
-			    struct hda_tegra *hda)
-{
-	static struct snd_device_ops ops = {
-		.dev_disconnect = hda_tegra_dev_disconnect,
-		.dev_free = hda_tegra_dev_free,
-	};
-	struct azx *chip;
-	int err;
-
-	chip = &hda->chip;
-
-	mutex_init(&chip->open_mutex);
-	chip->card = card;
-	chip->ops = &hda_tegra_ops;
-	chip->driver_caps = driver_caps;
-	chip->driver_type = driver_caps & 0xff;
-	chip->dev_index = 0;
-	INIT_LIST_HEAD(&chip->pcm_list);
-
-	chip->codec_probe_mask = -1;
-
-	chip->single_cmd = false;
-	chip->snoop = true;
-
-	INIT_WORK(&hda->probe_work, hda_tegra_probe_work);
-
-	err = azx_bus_init(chip, NULL, &hda_tegra_io_ops);
-	if (err < 0)
-		return err;
-
-	chip->bus.needs_damn_long_delay = 1;
-
-	err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
-	if (err < 0) {
-		dev_err(card->dev, "Error creating device\n");
-		return err;
-	}
-
-	return 0;
-}
-
-static const struct of_device_id hda_tegra_match[] = {
-	{ .compatible = "nvidia,tegra30-hda" },
-	{},
-};
-MODULE_DEVICE_TABLE(of, hda_tegra_match);
-
-static int hda_tegra_probe(struct platform_device *pdev)
-{
-	const unsigned int driver_flags = AZX_DCAPS_CORBRP_SELF_CLEAR;
-	struct snd_card *card;
-	struct azx *chip;
-	struct hda_tegra *hda;
-	int err;
-
-	hda = devm_kzalloc(&pdev->dev, sizeof(*hda), GFP_KERNEL);
-	if (!hda)
-		return -ENOMEM;
-	hda->dev = &pdev->dev;
-	chip = &hda->chip;
-
-	err = snd_card_new(&pdev->dev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1,
-			   THIS_MODULE, 0, &card);
-	if (err < 0) {
-		dev_err(&pdev->dev, "Error creating card!\n");
-		return err;
-	}
-
-	err = hda_tegra_create(card, driver_flags, hda);
-	if (err < 0)
-		goto out_free;
-	card->private_data = chip;
-
-	dev_set_drvdata(&pdev->dev, card);
-	schedule_work(&hda->probe_work);
-
-	return 0;
-
-out_free:
-	snd_card_free(card);
-	return err;
-}
-
-static void hda_tegra_probe_work(struct work_struct *work)
-{
-	struct hda_tegra *hda = container_of(work, struct hda_tegra, probe_work);
-	struct azx *chip = &hda->chip;
-	struct platform_device *pdev = to_platform_device(hda->dev);
-	int err;
-
-	err = hda_tegra_first_init(chip, pdev);
-	if (err < 0)
-		goto out_free;
-
-	/* create codec instances */
-	err = azx_probe_codecs(chip, 8);
-	if (err < 0)
-		goto out_free;
-
-	err = azx_codec_configure(chip);
-	if (err < 0)
-		goto out_free;
-
-	err = snd_card_register(chip->card);
-	if (err < 0)
-		goto out_free;
-
-	chip->running = 1;
-	snd_hda_set_power_save(&chip->bus, power_save * 1000);
-
- out_free:
-	return; /* no error return from async probe */
-}
-
-static int hda_tegra_remove(struct platform_device *pdev)
-{
-	return snd_card_free(dev_get_drvdata(&pdev->dev));
-}
-
-static void hda_tegra_shutdown(struct platform_device *pdev)
-{
-	struct snd_card *card = dev_get_drvdata(&pdev->dev);
-	struct azx *chip;
-
-	if (!card)
-		return;
-	chip = card->private_data;
-	if (chip && chip->running)
-		azx_stop_chip(chip);
-}
-
-static struct platform_driver tegra_platform_hda = {
-	.driver = {
-		.name = "tegra-hda",
-		.pm = &hda_tegra_pm,
-		.of_match_table = hda_tegra_match,
-	},
-	.probe = hda_tegra_probe,
-	.remove = hda_tegra_remove,
-	.shutdown = hda_tegra_shutdown,
-};
-module_platform_driver(tegra_platform_hda);
-
-MODULE_DESCRIPTION("Tegra HDA bus driver");
-MODULE_LICENSE("GPL v2");