This is a preparation for allowing devres usages more widely in various sound drivers. As a first step, this patch adds a new allocator function, snd_devm_alloc_pages(), to manage the allocated pages via devres, so that the pages will be automagically released as device unbinding.

Unlike the old snd_dma_alloc_pages(), the new function returns directly the snd_dma_buffer pointer. The caller needs NULL-check for the allocation error appropriately.

Also, since a real device pointer is mandatory for devres, SNDRV_DMA_TYPE_CONTINUOUS or SNDRV_DMA_TYPE_VMALLOC type can't be used for this function.

Signed-off-by: Takashi Iwai tiwai@suse.de --- include/sound/memalloc.h | 4 ++++ sound/core/memalloc.c | 46 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 50 insertions(+)

diff --git a/include/sound/memalloc.h b/include/sound/memalloc.h index 44d87775b352..d22c9387b2ba 100644 --- a/include/sound/memalloc.h +++ b/include/sound/memalloc.h @@ -79,5 +79,9 @@ struct page *snd_sgbuf_get_page(struct snd_dma_buffer *dmab, size_t offset); unsigned int snd_sgbuf_get_chunk_size(struct snd_dma_buffer *dmab, unsigned int ofs, unsigned int size);

+/* device-managed memory allocator */ +struct snd_dma_buffer *snd_devm_alloc_pages(struct device *dev, int type, + size_t size); + #endif /* __SOUND_MEMALLOC_H */

diff --git a/sound/core/memalloc.c b/sound/core/memalloc.c index 83b79edfa52d..3a78fdad1ab4 100644 --- a/sound/core/memalloc.c +++ b/sound/core/memalloc.c @@ -127,6 +127,52 @@ void snd_dma_free_pages(struct snd_dma_buffer *dmab) } EXPORT_SYMBOL(snd_dma_free_pages);

+/* called by devres */ +static void __snd_release_pages(struct device *dev, void *res) +{ + snd_dma_free_pages(res); +} + +/** + * snd_devm_alloc_pages - allocate the buffer and manage with devres + * @dev: the device pointer + * @type: the DMA buffer type + * @size: the buffer size to allocate + * + * Allocate buffer pages depending on the given type and manage using devres. + * The pages will be released automatically at the device removal. + * + * Unlike snd_dma_alloc_pages(), this function requires the real device pointer, + * hence it can't work with SNDRV_DMA_TYPE_CONTINUOUS or + * SNDRV_DMA_TYPE_VMALLOC type. + * + * The function returns the snd_dma_buffer object at success, or NULL if failed. + */ +struct snd_dma_buffer * +snd_devm_alloc_pages(struct device *dev, int type, size_t size) +{ + struct snd_dma_buffer *dmab; + int err; + + if (WARN_ON(type == SNDRV_DMA_TYPE_CONTINUOUS || + type == SNDRV_DMA_TYPE_VMALLOC)) + return NULL; + + dmab = devres_alloc(__snd_release_pages, sizeof(*dmab), GFP_KERNEL); + if (!dmab) + return NULL; + + err = snd_dma_alloc_pages(type, dev, size, dmab); + if (err < 0) { + devres_free(dmab); + return NULL; + } + + devres_add(dev, dmab); + return dmab; +} +EXPORT_SYMBOL_GPL(snd_devm_alloc_pages); + /** * snd_dma_buffer_mmap - perform mmap of the given DMA buffer * @dmab: buffer allocation information

This patch refactors the intel8x0 and intel8x0m driver codes using devres and gets rid of the driver remove callback.

The conversion is fairly straightforward: each API call is replaced with the device-managed API function, e.g. pci_enable_device() -> pcim_enable_device(), and so on. The buffer descriptor list is allocated with a new API, snd_devm_alloc_pages().

A slight code structure change is that the intel8x0 object is allocated as a card's private_data instead of the own lowlevel snd_device object. This simplifies the resource management. And, the take-down procedure is triggered via card->private_free, and it's registered at the end of the whole initialization, i.e. after the all resources get properly managed.

The only not-devres-managed resource is the irq handler. Since we need to release at suspend and re-acquire at resume (otherwise something weird happens on some machines), this is still managed manually. But the rest are all freed automatically.

The end result is a good amount of code reduction.

Signed-off-by: Takashi Iwai tiwai@suse.de --- sound/pci/intel8x0.c | 140 +++++++++++++----------------------------- sound/pci/intel8x0m.c | 139 ++++++++++++----------------------------- 2 files changed, 81 insertions(+), 198 deletions(-)

diff --git a/sound/pci/intel8x0.c b/sound/pci/intel8x0.c index 6a436a2ce26a..67cb65a53edd 100644 --- a/sound/pci/intel8x0.c +++ b/sound/pci/intel8x0.c @@ -378,7 +378,7 @@ struct intel8x0 { spinlock_t reg_lock; u32 bdbars_count; - struct snd_dma_buffer bdbars; + struct snd_dma_buffer *bdbars; u32 int_sta_reg; /* interrupt status register */ u32 int_sta_mask; /* interrupt status mask */ }; @@ -2528,8 +2528,9 @@ static int snd_intel8x0_chip_init(struct intel8x0 *chip, int probing) return 0; }

-static int snd_intel8x0_free(struct intel8x0 *chip) +static void snd_intel8x0_free(struct snd_card *card) { + struct intel8x0 *chip = card->private_data; unsigned int i;

if (chip->irq < 0) @@ -2552,16 +2553,6 @@ static int snd_intel8x0_free(struct intel8x0 *chip) __hw_end: if (chip->irq >= 0) free_irq(chip->irq, chip); - if (chip->bdbars.area) - snd_dma_free_pages(&chip->bdbars); - if (chip->addr) - pci_iounmap(chip->pci, chip->addr); - if (chip->bmaddr) - pci_iounmap(chip->pci, chip->bmaddr); - pci_release_regions(chip->pci); - pci_disable_device(chip->pci); - kfree(chip); - return 0; }

#ifdef CONFIG_PM_SLEEP @@ -2831,12 +2822,6 @@ static void snd_intel8x0_proc_init(struct intel8x0 *chip) snd_intel8x0_proc_read); }

-static int snd_intel8x0_dev_free(struct snd_device *device) -{ - struct intel8x0 *chip = device->device_data; - return snd_intel8x0_free(chip); -} - struct ich_reg_info { unsigned int int_sta_mask; unsigned int offset; @@ -2880,19 +2865,15 @@ static int snd_intel8x0_inside_vm(struct pci_dev *pci) return result; }

-static int snd_intel8x0_create(struct snd_card *card, - struct pci_dev *pci, - unsigned long device_type, - struct intel8x0 **r_intel8x0) +static int snd_intel8x0_init(struct snd_card *card, + struct pci_dev *pci, + unsigned long device_type) { - struct intel8x0 *chip; + struct intel8x0 *chip = card->private_data; int err; unsigned int i; unsigned int int_sta_masks; struct ichdev *ichdev; - static const struct snd_device_ops ops = { - .dev_free = snd_intel8x0_dev_free, - };

static const unsigned int bdbars[] = { 3, /* DEVICE_INTEL */ @@ -2925,17 +2906,10 @@ static int snd_intel8x0_create(struct snd_card *card, }; const struct ich_reg_info *tbl;

- *r_intel8x0 = NULL; - - err = pci_enable_device(pci); + err = pcim_enable_device(pci); if (err < 0) return err;

- chip = kzalloc(sizeof(*chip), GFP_KERNEL); - if (chip == NULL) { - pci_disable_device(pci); - return -ENOMEM; - } spin_lock_init(&chip->reg_lock); chip->device_type = device_type; chip->card = card; @@ -2961,38 +2935,23 @@ static int snd_intel8x0_create(struct snd_card *card, chip->fix_nocache = 1; /* enable workaround */

err = pci_request_regions(pci, card->shortname); - if (err < 0) { - kfree(chip); - pci_disable_device(pci); + if (err < 0) return err; - }

if (device_type == DEVICE_ALI) { /* ALI5455 has no ac97 region */ - chip->bmaddr = pci_iomap(pci, 0, 0); - goto port_inited; - } - - if (pci_resource_flags(pci, 2) & IORESOURCE_MEM) /* ICH4 and Nforce */ - chip->addr = pci_iomap(pci, 2, 0); - else - chip->addr = pci_iomap(pci, 0, 0); - if (!chip->addr) { - dev_err(card->dev, "AC'97 space ioremap problem\n"); - snd_intel8x0_free(chip); - return -EIO; + chip->bmaddr = pcim_iomap(pci, 0, 0); + } else { + if (pci_resource_flags(pci, 2) & IORESOURCE_MEM) /* ICH4 and Nforce */ + chip->addr = pcim_iomap(pci, 2, 0); + else + chip->addr = pcim_iomap(pci, 0, 0); + if (pci_resource_flags(pci, 3) & IORESOURCE_MEM) /* ICH4 */ + chip->bmaddr = pcim_iomap(pci, 3, 0); + else + chip->bmaddr = pcim_iomap(pci, 1, 0); } - if (pci_resource_flags(pci, 3) & IORESOURCE_MEM) /* ICH4 */ - chip->bmaddr = pci_iomap(pci, 3, 0); - else - chip->bmaddr = pci_iomap(pci, 1, 0);

- port_inited: - if (!chip->bmaddr) { - dev_err(card->dev, "Controller space ioremap problem\n"); - snd_intel8x0_free(chip); - return -EIO; - } chip->bdbars_count = bdbars[device_type];

/* initialize offsets */ @@ -3028,21 +2987,20 @@ static int snd_intel8x0_create(struct snd_card *card,

/* allocate buffer descriptor lists */ /* the start of each lists must be aligned to 8 bytes */ - if (snd_dma_alloc_pages(intel8x0_dma_type(chip), &pci->dev, - chip->bdbars_count * sizeof(u32) * ICH_MAX_FRAGS * 2, - &chip->bdbars) < 0) { - snd_intel8x0_free(chip); - dev_err(card->dev, "cannot allocate buffer descriptors\n"); + chip->bdbars = snd_devm_alloc_pages(&pci->dev, intel8x0_dma_type(chip), + chip->bdbars_count * sizeof(u32) * + ICH_MAX_FRAGS * 2); + if (!chip->bdbars) return -ENOMEM; - } + /* tables must be aligned to 8 bytes here, but the kernel pages are much bigger, so we don't care (on i386) */ int_sta_masks = 0; for (i = 0; i < chip->bdbars_count; i++) { ichdev = &chip->ichd[i]; - ichdev->bdbar = ((__le32 *)chip->bdbars.area) + + ichdev->bdbar = ((__le32 *)chip->bdbars->area) + (i * ICH_MAX_FRAGS * 2); - ichdev->bdbar_addr = chip->bdbars.addr + + ichdev->bdbar_addr = chip->bdbars->addr + (i * sizeof(u32) * ICH_MAX_FRAGS * 2); int_sta_masks |= ichdev->int_sta_mask; } @@ -3076,28 +3034,24 @@ static int snd_intel8x0_create(struct snd_card *card, chip->codec_isr_bits |= chip->codec_bit[i];

err = snd_intel8x0_chip_init(chip, 1); - if (err < 0) { - snd_intel8x0_free(chip); + if (err < 0) return err; - }

/* request irq after initializaing int_sta_mask, etc */ + /* NOTE: we don't use devm version here since it's released / + * re-acquired in PM callbacks. + * It's released explicitly in snd_intel8x0_free(), too. + */ if (request_irq(pci->irq, snd_intel8x0_interrupt, IRQF_SHARED, KBUILD_MODNAME, chip)) { dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq); - snd_intel8x0_free(chip); return -EBUSY; } chip->irq = pci->irq; card->sync_irq = chip->irq;

- err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); - if (err < 0) { - snd_intel8x0_free(chip); - return err; - } + card->private_free = snd_intel8x0_free;

- *r_intel8x0 = chip; return 0; }

@@ -3163,9 +3117,11 @@ static int snd_intel8x0_probe(struct pci_dev *pci, int err; struct shortname_table *name;

- err = snd_card_new(&pci->dev, index, id, THIS_MODULE, 0, &card); + err = snd_devm_card_new(&pci->dev, index, id, THIS_MODULE, + sizeof(*chip), &card); if (err < 0) return err; + chip = card->private_data;

if (spdif_aclink < 0) spdif_aclink = check_default_spdif_aclink(pci); @@ -3199,23 +3155,16 @@ static int snd_intel8x0_probe(struct pci_dev *pci, buggy_irq = 0; }

- err = snd_intel8x0_create(card, pci, pci_id->driver_data, &chip); - if (err < 0) { - snd_card_free(card); + err = snd_intel8x0_init(card, pci, pci_id->driver_data); + if (err < 0) return err; - } - card->private_data = chip;

err = snd_intel8x0_mixer(chip, ac97_clock, ac97_quirk); - if (err < 0) { - snd_card_free(card); + if (err < 0) return err; - } err = snd_intel8x0_pcm(chip); - if (err < 0) { - snd_card_free(card); + if (err < 0) return err; - } snd_intel8x0_proc_init(chip);

@@ -3233,24 +3182,17 @@ static int snd_intel8x0_probe(struct pci_dev *pci, }

err = snd_card_register(card); - if (err < 0) { - snd_card_free(card); + if (err < 0) return err; - } + pci_set_drvdata(pci, card); return 0; }

-static void snd_intel8x0_remove(struct pci_dev *pci) -{ - snd_card_free(pci_get_drvdata(pci)); -} - static struct pci_driver intel8x0_driver = { .name = KBUILD_MODNAME, .id_table = snd_intel8x0_ids, .probe = snd_intel8x0_probe, - .remove = snd_intel8x0_remove, .driver = { .pm = INTEL8X0_PM_OPS, }, diff --git a/sound/pci/intel8x0m.c b/sound/pci/intel8x0m.c index b96fce6cbd83..7de3cb2f17b5 100644 --- a/sound/pci/intel8x0m.c +++ b/sound/pci/intel8x0m.c @@ -182,7 +182,7 @@ struct intel8x0m {

spinlock_t reg_lock; - struct snd_dma_buffer bdbars; + struct snd_dma_buffer *bdbars; u32 bdbars_count; u32 int_sta_reg; /* interrupt status register */ u32 int_sta_mask; /* interrupt status mask */ @@ -947,8 +947,9 @@ static int snd_intel8x0m_chip_init(struct intel8x0m *chip, int probing) return 0; }

-static int snd_intel8x0m_free(struct intel8x0m *chip) +static void snd_intel8x0m_free(struct snd_card *card) { + struct intel8x0m *chip = card->private_data; unsigned int i;

if (chip->irq < 0) @@ -962,16 +963,6 @@ static int snd_intel8x0m_free(struct intel8x0m *chip) __hw_end: if (chip->irq >= 0) free_irq(chip->irq, chip); - if (chip->bdbars.area) - snd_dma_free_pages(&chip->bdbars); - if (chip->addr) - pci_iounmap(chip->pci, chip->addr); - if (chip->bmaddr) - pci_iounmap(chip->pci, chip->bmaddr); - pci_release_regions(chip->pci); - pci_disable_device(chip->pci); - kfree(chip); - return 0; }

#ifdef CONFIG_PM_SLEEP @@ -1047,47 +1038,30 @@ static void snd_intel8x0m_proc_init(struct intel8x0m *chip) snd_intel8x0m_proc_read); }

-static int snd_intel8x0m_dev_free(struct snd_device *device) -{ - struct intel8x0m *chip = device->device_data; - return snd_intel8x0m_free(chip); -} - struct ich_reg_info { unsigned int int_sta_mask; unsigned int offset; };

-static int snd_intel8x0m_create(struct snd_card *card, - struct pci_dev *pci, - unsigned long device_type, - struct intel8x0m **r_intel8x0m) +static int snd_intel8x0m_init(struct snd_card *card, + struct pci_dev *pci, + unsigned long device_type) { - struct intel8x0m *chip; + struct intel8x0m *chip = card->private_data; int err; unsigned int i; unsigned int int_sta_masks; struct ichdev *ichdev; - static const struct snd_device_ops ops = { - .dev_free = snd_intel8x0m_dev_free, - }; static const struct ich_reg_info intel_regs[2] = { { ICH_MIINT, 0 }, { ICH_MOINT, 0x10 }, }; const struct ich_reg_info *tbl;

- *r_intel8x0m = NULL; - - err = pci_enable_device(pci); + err = pcim_enable_device(pci); if (err < 0) return err;

- chip = kzalloc(sizeof(*chip), GFP_KERNEL); - if (chip == NULL) { - pci_disable_device(pci); - return -ENOMEM; - } spin_lock_init(&chip->reg_lock); chip->device_type = device_type; chip->card = card; @@ -1095,37 +1069,21 @@ static int snd_intel8x0m_create(struct snd_card *card, chip->irq = -1;

err = pci_request_regions(pci, card->shortname); - if (err < 0) { - kfree(chip); - pci_disable_device(pci); + if (err < 0) return err; - }

if (device_type == DEVICE_ALI) { /* ALI5455 has no ac97 region */ - chip->bmaddr = pci_iomap(pci, 0, 0); - goto port_inited; - } - - if (pci_resource_flags(pci, 2) & IORESOURCE_MEM) /* ICH4 and Nforce */ - chip->addr = pci_iomap(pci, 2, 0); - else - chip->addr = pci_iomap(pci, 0, 0); - if (!chip->addr) { - dev_err(card->dev, "AC'97 space ioremap problem\n"); - snd_intel8x0m_free(chip); - return -EIO; - } - if (pci_resource_flags(pci, 3) & IORESOURCE_MEM) /* ICH4 */ - chip->bmaddr = pci_iomap(pci, 3, 0); - else - chip->bmaddr = pci_iomap(pci, 1, 0); - -port_inited: - if (!chip->bmaddr) { - dev_err(card->dev, "Controller space ioremap problem\n"); - snd_intel8x0m_free(chip); - return -EIO; + chip->bmaddr = pcim_iomap(pci, 0, 0); + } else { + if (pci_resource_flags(pci, 2) & IORESOURCE_MEM) /* ICH4 and Nforce */ + chip->addr = pcim_iomap(pci, 2, 0); + else + chip->addr = pcim_iomap(pci, 0, 0); + if (pci_resource_flags(pci, 3) & IORESOURCE_MEM) /* ICH4 */ + chip->bmaddr = pcim_iomap(pci, 3, 0); + else + chip->bmaddr = pcim_iomap(pci, 1, 0); }

/* initialize offsets */ @@ -1153,19 +1111,19 @@ static int snd_intel8x0m_create(struct snd_card *card,

/* allocate buffer descriptor lists */ /* the start of each lists must be aligned to 8 bytes */ - if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, &pci->dev, - chip->bdbars_count * sizeof(u32) * ICH_MAX_FRAGS * 2, - &chip->bdbars) < 0) { - snd_intel8x0m_free(chip); + chip->bdbars = snd_devm_alloc_pages(&pci->dev, SNDRV_DMA_TYPE_DEV, + chip->bdbars_count * sizeof(u32) * + ICH_MAX_FRAGS * 2); + if (!chip->bdbars) return -ENOMEM; - } + /* tables must be aligned to 8 bytes here, but the kernel pages are much bigger, so we don't care (on i386) */ int_sta_masks = 0; for (i = 0; i < chip->bdbars_count; i++) { ichdev = &chip->ichd[i]; - ichdev->bdbar = ((__le32 *)chip->bdbars.area) + (i * ICH_MAX_FRAGS * 2); - ichdev->bdbar_addr = chip->bdbars.addr + (i * sizeof(u32) * ICH_MAX_FRAGS * 2); + ichdev->bdbar = ((__le32 *)chip->bdbars->area) + (i * ICH_MAX_FRAGS * 2); + ichdev->bdbar_addr = chip->bdbars->addr + (i * sizeof(u32) * ICH_MAX_FRAGS * 2); int_sta_masks |= ichdev->int_sta_mask; } chip->int_sta_reg = ICH_REG_GLOB_STA; @@ -1174,27 +1132,23 @@ static int snd_intel8x0m_create(struct snd_card *card, pci_set_master(pci);

err = snd_intel8x0m_chip_init(chip, 1); - if (err < 0) { - snd_intel8x0m_free(chip); + if (err < 0) return err; - }

+ /* NOTE: we don't use devm version here since it's released / + * re-acquired in PM callbacks. + * It's released explicitly in snd_intel8x0m_free(), too. + */ if (request_irq(pci->irq, snd_intel8x0m_interrupt, IRQF_SHARED, KBUILD_MODNAME, chip)) { dev_err(card->dev, "unable to grab IRQ %d\n", pci->irq); - snd_intel8x0m_free(chip); return -EBUSY; } chip->irq = pci->irq; card->sync_irq = chip->irq;

- err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); - if (err < 0) { - snd_intel8x0m_free(chip); - return err; - } + card->private_free = snd_intel8x0m_free;

- *r_intel8x0m = chip; return 0; }

@@ -1232,9 +1186,11 @@ static int snd_intel8x0m_probe(struct pci_dev *pci, int err; struct shortname_table *name;

- err = snd_card_new(&pci->dev, index, id, THIS_MODULE, 0, &card); + err = snd_devm_card_new(&pci->dev, index, id, THIS_MODULE, + sizeof(*chip), &card); if (err < 0) return err; + chip = card->private_data;

strcpy(card->driver, "ICH-MODEM"); strcpy(card->shortname, "Intel ICH"); @@ -1246,23 +1202,16 @@ static int snd_intel8x0m_probe(struct pci_dev *pci, } strcat(card->shortname," Modem");

- err = snd_intel8x0m_create(card, pci, pci_id->driver_data, &chip); - if (err < 0) { - snd_card_free(card); + err = snd_intel8x0m_init(card, pci, pci_id->driver_data); + if (err < 0) return err; - } - card->private_data = chip;

err = snd_intel8x0m_mixer(chip, ac97_clock); - if (err < 0) { - snd_card_free(card); + if (err < 0) return err; - } err = snd_intel8x0m_pcm(chip); - if (err < 0) { - snd_card_free(card); + if (err < 0) return err; - } snd_intel8x0m_proc_init(chip);

@@ -1270,24 +1219,16 @@ static int snd_intel8x0m_probe(struct pci_dev *pci, card->shortname, chip->irq);

err = snd_card_register(card); - if (err < 0) { - snd_card_free(card); + if (err < 0) return err; - } pci_set_drvdata(pci, card); return 0; }

-static void snd_intel8x0m_remove(struct pci_dev *pci) -{ - snd_card_free(pci_get_drvdata(pci)); -} - static struct pci_driver intel8x0m_driver = { .name = KBUILD_MODNAME, .id_table = snd_intel8x0m_ids, .probe = snd_intel8x0m_probe, - .remove = snd_intel8x0m_remove, .driver = { .pm = INTEL8X0M_PM_OPS, },

This patch is an attempt to slightly simplify the resource management in HD-audio code, by using some device-managed APIs. Only a few resources like PCI enablement and PCI resources managed via devres, but most of the rest code dealing with HD-audio core stuff couldn't be changed so much, hence the changes in this patch are pretty small in the end. A special caveat is needed for the card object: we can't move the card object release into devres, because the driver is involved with the component stuff and its unregistiration doesn't work well from devres release at all.

Signed-off-by: Takashi Iwai tiwai@suse.de --- sound/pci/hda/hda_controller.h | 1 - sound/pci/hda/hda_intel.c | 26 +++++--------------------- 2 files changed, 5 insertions(+), 22 deletions(-)

diff --git a/sound/pci/hda/hda_controller.h b/sound/pci/hda/hda_controller.h index 68f9668788ea..e4b290de81de 100644 --- a/sound/pci/hda/hda_controller.h +++ b/sound/pci/hda/hda_controller.h @@ -141,7 +141,6 @@ struct azx { unsigned int snoop:1; unsigned int uc_buffer:1; /* non-cached pages for stream buffers */ unsigned int align_buffer_size:1; - unsigned int region_requested:1; unsigned int disabled:1; /* disabled by vga_switcheroo */ unsigned int pm_prepared:1;

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 0322b289505e..4d64f2ce30dc 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -1367,18 +1367,11 @@ static void azx_free(struct azx *chip)

if (bus->irq >= 0) free_irq(bus->irq, (void*)chip); - if (chip->msi) - pci_disable_msi(chip->pci); - iounmap(bus->remap_addr);

azx_free_stream_pages(chip); azx_free_streams(chip); snd_hdac_bus_exit(bus);

- if (chip->region_requested) - pci_release_regions(chip->pci); - - pci_disable_device(chip->pci); #ifdef CONFIG_SND_HDA_PATCH_LOADER release_firmware(chip->fw); #endif @@ -1767,15 +1760,13 @@ static int azx_create(struct snd_card *card, struct pci_dev *pci,

*rchip = NULL;

- err = pci_enable_device(pci); + err = pcim_enable_device(pci); if (err < 0) return err;

hda = devm_kzalloc(&pci->dev, sizeof(*hda), GFP_KERNEL); - if (!hda) { - pci_disable_device(pci); + if (!hda) return -ENOMEM; - }

chip = &hda->chip; mutex_init(&chip->open_mutex); @@ -1811,10 +1802,8 @@ static int azx_create(struct snd_card *card, struct pci_dev *pci, chip->bdl_pos_adj = bdl_pos_adj[dev];

err = azx_bus_init(chip, model[dev]); - if (err < 0) { - pci_disable_device(pci); + if (err < 0) return err; - }

/* use the non-cached pages in non-snoop mode */ if (!azx_snoop(chip)) @@ -1860,17 +1849,12 @@ static int azx_first_init(struct azx *chip) } #endif

- err = pci_request_regions(pci, "ICH HD audio"); + err = pcim_iomap_regions(pci, 1 << 0, "ICH HD audio"); if (err < 0) return err; - chip->region_requested = 1;

bus->addr = pci_resource_start(pci, 0); - bus->remap_addr = pci_ioremap_bar(pci, 0); - if (bus->remap_addr == NULL) { - dev_err(card->dev, "ioremap error\n"); - return -ENXIO; - } + bus->remap_addr = pcim_iomap_table(pci)[0];

if (chip->driver_type == AZX_DRIVER_SKL) snd_hdac_bus_parse_capabilities(bus);

This patch converts the resource management in PCI ad1889 driver with devres as a clean up. Each manual resource management is converted with the corresponding devres helper, and the card object release is managed now via card->private_free instead of a lowlevel snd_device. Also, the unnecessary ac97 free callbacks are removed, too.

This should give no user-visible functional changes.

Signed-off-by: Takashi Iwai tiwai@suse.de --- sound/pci/ad1889.c | 144 ++++++++------------------------------------- 1 file changed, 25 insertions(+), 119 deletions(-)

diff --git a/sound/pci/ad1889.c b/sound/pci/ad1889.c index 5c78951dd596..bba4dae8dcc7 100644 --- a/sound/pci/ad1889.c +++ b/sound/pci/ad1889.c @@ -740,20 +740,6 @@ snd_ad1889_ac97_xinit(struct snd_ad1889 *chip)

}

-static void -snd_ad1889_ac97_bus_free(struct snd_ac97_bus *bus) -{ - struct snd_ad1889 *chip = bus->private_data; - chip->ac97_bus = NULL; -} - -static void -snd_ad1889_ac97_free(struct snd_ac97 *ac97) -{ - struct snd_ad1889 *chip = ac97->private_data; - chip->ac97 = NULL; -} - static int snd_ad1889_ac97_init(struct snd_ad1889 *chip, const char *quirk_override) { @@ -771,11 +757,8 @@ snd_ad1889_ac97_init(struct snd_ad1889 *chip, const char *quirk_override) if (err < 0) return err; - chip->ac97_bus->private_free = snd_ad1889_ac97_bus_free; - memset(&ac97, 0, sizeof(ac97)); ac97.private_data = chip; - ac97.private_free = snd_ad1889_ac97_free; ac97.pci = chip->pci;

err = snd_ac97_mixer(chip->ac97_bus, &ac97, &chip->ac97); @@ -787,11 +770,10 @@ snd_ad1889_ac97_init(struct snd_ad1889 *chip, const char *quirk_override) return 0; }

-static int -snd_ad1889_free(struct snd_ad1889 *chip) +static void +snd_ad1889_free(struct snd_card *card) { - if (chip->irq < 0) - goto skip_hw; + struct snd_ad1889 *chip = card->private_data;

spin_lock_irq(&chip->lock);

@@ -805,125 +787,60 @@ snd_ad1889_free(struct snd_ad1889 *chip) ad1889_readl(chip, AD_DMA_DISR); /* flush, dammit! */

spin_unlock_irq(&chip->lock); - - if (chip->irq >= 0) - free_irq(chip->irq, chip); - -skip_hw: - iounmap(chip->iobase); - pci_release_regions(chip->pci); - pci_disable_device(chip->pci); - kfree(chip); - return 0; -} - -static int -snd_ad1889_dev_free(struct snd_device *device) -{ - struct snd_ad1889 *chip = device->device_data; - return snd_ad1889_free(chip); -} - -static int -snd_ad1889_init(struct snd_ad1889 *chip) -{ - ad1889_writew(chip, AD_DS_CCS, AD_DS_CCS_CLKEN); /* turn on clock */ - ad1889_readw(chip, AD_DS_CCS); /* flush posted write */ - - usleep_range(10000, 11000); - - /* enable Master and Target abort interrupts */ - ad1889_writel(chip, AD_DMA_DISR, AD_DMA_DISR_PMAE | AD_DMA_DISR_PTAE); - - return 0; }

static int -snd_ad1889_create(struct snd_card *card, - struct pci_dev *pci, - struct snd_ad1889 **rchip) +snd_ad1889_create(struct snd_card *card, struct pci_dev *pci) { + struct snd_ad1889 *chip = card->private_data; int err;

- struct snd_ad1889 *chip; - static const struct snd_device_ops ops = { - .dev_free = snd_ad1889_dev_free, - }; - - *rchip = NULL; - - err = pci_enable_device(pci); + err = pcim_enable_device(pci); if (err < 0) return err;

/* check PCI availability (32bit DMA) */ if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(32))) { dev_err(card->dev, "error setting 32-bit DMA mask.\n"); - pci_disable_device(pci); return -ENXIO; }

- /* allocate chip specific data with zero-filled memory */ - chip = kzalloc(sizeof(*chip), GFP_KERNEL); - if (!chip) { - pci_disable_device(pci); - return -ENOMEM; - } - chip->card = card; - card->private_data = chip; chip->pci = pci; chip->irq = -1;

/* (1) PCI resource allocation */ - err = pci_request_regions(pci, card->driver); + err = pcim_iomap_regions(pci, 1 << 0, card->driver); if (err < 0) - goto free_and_ret; + return err;

chip->bar = pci_resource_start(pci, 0); - chip->iobase = pci_ioremap_bar(pci, 0); - if (chip->iobase == NULL) { - dev_err(card->dev, "unable to reserve region.\n"); - err = -EBUSY; - goto free_and_ret; - } + chip->iobase = pcim_iomap_table(pci)[0]; pci_set_master(pci);

spin_lock_init(&chip->lock); /* only now can we call ad1889_free */

- if (request_irq(pci->irq, snd_ad1889_interrupt, - IRQF_SHARED, KBUILD_MODNAME, chip)) { + if (devm_request_irq(&pci->dev, pci->irq, snd_ad1889_interrupt, + IRQF_SHARED, KBUILD_MODNAME, chip)) { dev_err(card->dev, "cannot obtain IRQ %d\n", pci->irq); - snd_ad1889_free(chip); return -EBUSY; }

chip->irq = pci->irq; card->sync_irq = chip->irq; + card->private_free = snd_ad1889_free;

/* (2) initialization of the chip hardware */ - err = snd_ad1889_init(chip); - if (err < 0) { - snd_ad1889_free(chip); - return err; - } + ad1889_writew(chip, AD_DS_CCS, AD_DS_CCS_CLKEN); /* turn on clock */ + ad1889_readw(chip, AD_DS_CCS); /* flush posted write */

- err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); - if (err < 0) { - snd_ad1889_free(chip); - return err; - } + usleep_range(10000, 11000);

- *rchip = chip; + /* enable Master and Target abort interrupts */ + ad1889_writel(chip, AD_DMA_DISR, AD_DMA_DISR_PMAE | AD_DMA_DISR_PTAE);

return 0; - -free_and_ret: - kfree(chip); - pci_disable_device(pci); - - return err; }

static int @@ -944,19 +861,19 @@ snd_ad1889_probe(struct pci_dev *pci, }

/* (2) */ - err = snd_card_new(&pci->dev, index[devno], id[devno], THIS_MODULE, - 0, &card); - /* XXX REVISIT: we can probably allocate chip in this call */ + err = snd_devm_card_new(&pci->dev, index[devno], id[devno], THIS_MODULE, + sizeof(*chip), &card); if (err < 0) return err; + chip = card->private_data;

strcpy(card->driver, "AD1889"); strcpy(card->shortname, "Analog Devices AD1889");

/* (3) */ - err = snd_ad1889_create(card, pci, &chip); + err = snd_ad1889_create(card, pci); if (err < 0) - goto free_and_ret; + return err;

/* (4) */ sprintf(card->longname, "%s at 0x%lx irq %i", @@ -966,11 +883,11 @@ snd_ad1889_probe(struct pci_dev *pci, /* register AC97 mixer */ err = snd_ad1889_ac97_init(chip, ac97_quirk[devno]); if (err < 0) - goto free_and_ret; + return err; err = snd_ad1889_pcm_init(chip, 0); if (err < 0) - goto free_and_ret; + return err;

/* register proc interface */ snd_ad1889_proc_init(chip); @@ -978,23 +895,13 @@ snd_ad1889_probe(struct pci_dev *pci, /* (6) */ err = snd_card_register(card); if (err < 0) - goto free_and_ret; + return err;

/* (7) */ pci_set_drvdata(pci, card);

devno++; return 0; - -free_and_ret: - snd_card_free(card); - return err; -} - -static void -snd_ad1889_remove(struct pci_dev *pci) -{ - snd_card_free(pci_get_drvdata(pci)); }

static const struct pci_device_id snd_ad1889_ids[] = { @@ -1007,7 +914,6 @@ static struct pci_driver ad1889_pci_driver = { .name = KBUILD_MODNAME, .id_table = snd_ad1889_ids, .probe = snd_ad1889_probe, - .remove = snd_ad1889_remove, };

module_pci_driver(ad1889_pci_driver);

This patch converts the resource management in PCI als4000 driver with devres as a clean up. Each manual resource management is converted with the corresponding devres helper, and the card object release is managed now via card->private_free instead of a lowlevel snd_device.

This should give no user-visible functional changes.

Signed-off-by: Takashi Iwai tiwai@suse.de --- sound/pci/als4000.c | 59 +++++++++++++-------------------------------- 1 file changed, 17 insertions(+), 42 deletions(-)

diff --git a/sound/pci/als4000.c b/sound/pci/als4000.c index 509f317ee682..535eccd124be 100644 --- a/sound/pci/als4000.c +++ b/sound/pci/als4000.c @@ -746,13 +746,15 @@ static int snd_als4000_create_gameport(struct snd_card_als4000 *acard, int dev)

if (joystick_port[dev] == 1) { /* auto-detect */ for (io_port = 0x200; io_port <= 0x218; io_port += 8) { - r = request_region(io_port, 8, "ALS4000 gameport"); + r = devm_request_region(&acard->pci->dev, io_port, 8, + "ALS4000 gameport"); if (r) break; } } else { io_port = joystick_port[dev]; - r = request_region(io_port, 8, "ALS4000 gameport"); + r = devm_request_region(&acard->pci->dev, io_port, 8, + "ALS4000 gameport"); }

if (!r) { @@ -763,7 +765,6 @@ static int snd_als4000_create_gameport(struct snd_card_als4000 *acard, int dev) acard->gameport = gp = gameport_allocate_port(); if (!gp) { dev_err(&acard->pci->dev, "cannot allocate memory for gameport\n"); - release_and_free_resource(r); return -ENOMEM; }

@@ -771,7 +772,6 @@ static int snd_als4000_create_gameport(struct snd_card_als4000 *acard, int dev) gameport_set_phys(gp, "pci%s/gameport0", pci_name(acard->pci)); gameport_set_dev_parent(gp, &acard->pci->dev); gp->io = io_port; - gameport_set_port_data(gp, r);

/* Enable legacy joystick port */ snd_als4000_set_addr(acard->iobase, 0, 0, 0, 1); @@ -784,15 +784,11 @@ static int snd_als4000_create_gameport(struct snd_card_als4000 *acard, int dev) static void snd_als4000_free_gameport(struct snd_card_als4000 *acard) { if (acard->gameport) { - struct resource *r = gameport_get_port_data(acard->gameport); - gameport_unregister_port(acard->gameport); acard->gameport = NULL;

/* disable joystick */ snd_als4000_set_addr(acard->iobase, 0, 0, 0, 0); - - release_and_free_resource(r); } } #else @@ -808,8 +804,6 @@ static void snd_card_als4000_free( struct snd_card *card ) snd_als4k_gcr_write_addr(acard->iobase, ALS4K_GCR8C_MISC_CTRL, 0); /* free resources */ snd_als4000_free_gameport(acard); - pci_release_regions(acard->pci); - pci_disable_device(acard->pci); }

static int snd_card_als4000_probe(struct pci_dev *pci, @@ -832,36 +826,30 @@ static int snd_card_als4000_probe(struct pci_dev *pci, }

/* enable PCI device */ - err = pci_enable_device(pci); + err = pcim_enable_device(pci); if (err < 0) return err;

/* check, if we can restrict PCI DMA transfers to 24 bits */ if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(24))) { dev_err(&pci->dev, "architecture does not support 24bit PCI busmaster DMA\n"); - pci_disable_device(pci); return -ENXIO; }

err = pci_request_regions(pci, "ALS4000"); - if (err < 0) { - pci_disable_device(pci); + if (err < 0) return err; - } iobase = pci_resource_start(pci, 0);

pci_read_config_word(pci, PCI_COMMAND, &word); pci_write_config_word(pci, PCI_COMMAND, word | PCI_COMMAND_IO); pci_set_master(pci); - err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE, - sizeof(*acard) /* private_data: acard */, - &card); - if (err < 0) { - pci_release_regions(pci); - pci_disable_device(pci); + err = snd_devm_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE, + sizeof(*acard) /* private_data: acard */, + &card); + if (err < 0) return err; - }

acard = card->private_data; acard->pci = pci; @@ -881,7 +869,7 @@ static int snd_card_als4000_probe(struct pci_dev *pci, SB_HW_ALS4000, &chip); if (err < 0) - goto out_err; + return err; acard->chip = chip;

chip->pci = pci; @@ -902,7 +890,7 @@ static int snd_card_als4000_probe(struct pci_dev *pci, if (err < 0) { dev_err(&pci->dev, "no MPU-401 device at 0x%lx?\n", iobase + ALS4K_IOB_30_MIDI_DATA); - goto out_err; + return err; } /* FIXME: ALS4000 has interesting MPU401 configuration features * at ALS4K_CR1A_MPU401_UART_MODE_CONTROL @@ -912,11 +900,11 @@ static int snd_card_als4000_probe(struct pci_dev *pci,

err = snd_als4000_pcm(chip, 0); if (err < 0) - goto out_err; + return err;

err = snd_sbmixer_new(chip); if (err < 0) - goto out_err; + return err;

if (snd_opl3_create(card, iobase + ALS4K_IOB_10_ADLIB_ADDR0, @@ -928,30 +916,18 @@ static int snd_card_als4000_probe(struct pci_dev *pci, } else { err = snd_opl3_hwdep_new(opl3, 0, 1, NULL); if (err < 0) - goto out_err; + return err; }

snd_als4000_create_gameport(acard, dev);

err = snd_card_register(card); if (err < 0) - goto out_err; + return err;

pci_set_drvdata(pci, card); dev++; - err = 0; - goto out; - -out_err: - snd_card_free(card); - -out: - return err; -} - -static void snd_card_als4000_remove(struct pci_dev *pci) -{ - snd_card_free(pci_get_drvdata(pci)); + return 0; }

#ifdef CONFIG_PM_SLEEP @@ -996,7 +972,6 @@ static struct pci_driver als4000_driver = { .name = KBUILD_MODNAME, .id_table = snd_als4000_ids, .probe = snd_card_als4000_probe, - .remove = snd_card_als4000_remove, .driver = { .pm = SND_ALS4000_PM_OPS, },