struct clk *hda2codec_2x_clk;
struct clk *hda2hdmi_clk;
void __iomem *regs;
+ struct work_struct probe_work;
};
#ifdef CONFIG_PM
/*
* DMA page allocation ops.
*/
-static int dma_alloc_pages(struct azx *chip, int type, size_t size,
+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, chip->card->dev, size, buf);
+ return snd_dma_alloc_pages(type, bus->dev, size, buf);
}
-static void dma_free_pages(struct azx *chip, struct snd_dma_buffer *buf)
+static void dma_free_pages(struct hdac_bus *bus, struct snd_dma_buffer *buf)
{
snd_dma_free_pages(buf);
}
struct snd_pcm_substream *substream,
size_t size)
{
- struct azx_dev *azx_dev = get_azx_dev(substream);
-
- azx_dev->bufsize = 0;
- azx_dev->period_bytes = 0;
- azx_dev->format_val = 0;
return snd_pcm_lib_malloc_pages(substream, size);
}
return (v >> shift) & 0xff;
}
-static const struct hda_controller_ops hda_tegra_ops = {
+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_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 = {
.substream_alloc_pages = substream_alloc_pages,
.substream_free_pages = substream_free_pages,
};
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)
{
- int i;
struct azx *chip = device->device_data;
+ struct hda_tegra *hda = container_of(chip, struct hda_tegra, chip);
- if (chip->initialized) {
- for (i = 0; i < chip->num_streams; i++)
- azx_stream_stop(chip, &chip->azx_dev[i]);
+ 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))
+ 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))
+ 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))
+ 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);
- chip->remap_addr = hda->regs + HDA_BAR0;
- chip->addr = res->start + HDA_BAR0;
+ bus->remap_addr = hda->regs + HDA_BAR0;
+ bus->addr = res->start + HDA_BAR0;
err = hda_tegra_enable_clocks(hda);
- if (err)
+ if (err) {
+ dev_err(dev, "failed to get enable clocks\n");
return err;
+ }
hda_tegra_init(hda);
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;
irq_id);
return err;
}
- chip->irq = irq_id;
+ bus->irq = irq_id;
- synchronize_irq(chip->irq);
+ synchronize_irq(bus->irq);
gcap = azx_readw(chip, GCAP);
dev_dbg(card->dev, "chipset global capabilities = 0x%x\n", gcap);
chip->capture_index_offset = 0;
chip->playback_index_offset = chip->capture_streams;
chip->num_streams = chip->playback_streams + chip->capture_streams;
- chip->azx_dev = devm_kcalloc(card->dev, chip->num_streams,
- sizeof(*chip->azx_dev), GFP_KERNEL);
- if (!chip->azx_dev)
- return -ENOMEM;
- err = azx_alloc_stream_pages(chip);
- if (err < 0)
+ /* initialize streams */
+ err = azx_init_streams(chip);
+ if (err < 0) {
+ dev_err(card->dev, "failed to initialize streams: %d\n", err);
return err;
+ }
- /* initialize streams */
- azx_init_stream(chip);
+ 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 (!chip->codec_mask) {
+ if (!bus->codec_mask) {
dev_err(card->dev, "no codecs found!\n");
return -ENODEV;
}
strcpy(card->shortname, "tegra-hda");
snprintf(card->longname, sizeof(card->longname),
"%s at 0x%lx irq %i",
- card->shortname, chip->addr, chip->irq);
+ 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,
- const struct hda_controller_ops *hda_ops,
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;
chip = &hda->chip;
- spin_lock_init(&chip->reg_lock);
mutex_init(&chip->open_mutex);
chip->card = card;
- chip->ops = hda_ops;
- chip->irq = -1;
+ chip->ops = &hda_tegra_ops;
chip->driver_caps = driver_caps;
chip->driver_type = driver_caps & 0xff;
chip->dev_index = 0;
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;
+
err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops);
if (err < 0) {
dev_err(card->dev, "Error creating device\n");
static int hda_tegra_probe(struct platform_device *pdev)
{
+ const unsigned int driver_flags = AZX_DCAPS_RIRB_DELAY |
+ AZX_DCAPS_CORBRP_SELF_CLEAR;
struct snd_card *card;
struct azx *chip;
struct hda_tegra *hda;
int err;
- const unsigned int driver_flags = AZX_DCAPS_RIRB_DELAY;
hda = devm_kzalloc(&pdev->dev, sizeof(*hda), GFP_KERNEL);
if (!hda)
return err;
}
- err = hda_tegra_create(card, driver_flags, &hda_tegra_ops, hda);
+ 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_bus_create(chip, NULL);
- if (err < 0)
- goto out_free;
-
err = azx_probe_codecs(chip, 0);
if (err < 0)
goto out_free;
goto out_free;
chip->running = 1;
- snd_hda_set_power_save(chip->bus, power_save * 1000);
-
- return 0;
+ snd_hda_set_power_save(&chip->bus, power_save * 1000);
-out_free:
- snd_card_free(card);
- return err;
+ out_free:
+ return; /* no error return from async probe */
}
static int hda_tegra_remove(struct platform_device *pdev)
Code Review / kvmfornfv.git / blobdiff