mirror of
https://github.com/torvalds/linux.git
synced 2024-11-24 13:11:40 +00:00
ALSA: hda/intel: Refactoring PM code
Make unified suspend / resume helpers and call them from both the runtime- and the system-PM callbacks for simplifying code. There are slight changes of call orders, but there shouldn't be any functional difference after refactoring. Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai
parent
fa9c98e4b9
commit
3baffc4a84
@ -930,66 +930,42 @@ static int param_set_xint(const char *val, const struct kernel_param *kp)
|
||||
mutex_unlock(&card_list_lock);
|
||||
return 0;
|
||||
}
|
||||
#else
|
||||
#define azx_add_card_list(chip) /* NOP */
|
||||
#define azx_del_card_list(chip) /* NOP */
|
||||
#endif /* CONFIG_PM */
|
||||
|
||||
#ifdef CONFIG_PM_SLEEP
|
||||
/*
|
||||
* power management
|
||||
*/
|
||||
static int azx_suspend(struct device *dev)
|
||||
static bool azx_is_pm_ready(struct snd_card *card)
|
||||
{
|
||||
struct snd_card *card = dev_get_drvdata(dev);
|
||||
struct azx *chip;
|
||||
struct hda_intel *hda;
|
||||
struct hdac_bus *bus;
|
||||
|
||||
if (!card)
|
||||
return 0;
|
||||
|
||||
return false;
|
||||
chip = card->private_data;
|
||||
hda = container_of(chip, struct hda_intel, chip);
|
||||
if (chip->disabled || hda->init_failed || !chip->running)
|
||||
return 0;
|
||||
|
||||
bus = azx_bus(chip);
|
||||
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
|
||||
azx_clear_irq_pending(chip);
|
||||
azx_stop_chip(chip);
|
||||
azx_enter_link_reset(chip);
|
||||
if (bus->irq >= 0) {
|
||||
free_irq(bus->irq, chip);
|
||||
bus->irq = -1;
|
||||
}
|
||||
|
||||
if (chip->msi)
|
||||
pci_disable_msi(chip->pci);
|
||||
if ((chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
|
||||
&& hda->need_i915_power)
|
||||
snd_hdac_display_power(bus, false);
|
||||
|
||||
trace_azx_suspend(chip);
|
||||
return 0;
|
||||
return false;
|
||||
return true;
|
||||
}
|
||||
|
||||
static int azx_resume(struct device *dev)
|
||||
static void __azx_runtime_suspend(struct azx *chip)
|
||||
{
|
||||
struct pci_dev *pci = to_pci_dev(dev);
|
||||
struct snd_card *card = dev_get_drvdata(dev);
|
||||
struct azx *chip;
|
||||
struct hda_intel *hda;
|
||||
struct hdac_bus *bus;
|
||||
struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
|
||||
|
||||
if (!card)
|
||||
return 0;
|
||||
azx_stop_chip(chip);
|
||||
azx_enter_link_reset(chip);
|
||||
azx_clear_irq_pending(chip);
|
||||
if ((chip->driver_caps & AZX_DCAPS_I915_POWERWELL) &&
|
||||
hda->need_i915_power)
|
||||
snd_hdac_display_power(azx_bus(chip), false);
|
||||
}
|
||||
|
||||
chip = card->private_data;
|
||||
hda = container_of(chip, struct hda_intel, chip);
|
||||
bus = azx_bus(chip);
|
||||
if (chip->disabled || hda->init_failed || !chip->running)
|
||||
return 0;
|
||||
static void __azx_runtime_resume(struct azx *chip)
|
||||
{
|
||||
struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
|
||||
struct hdac_bus *bus = azx_bus(chip);
|
||||
struct hda_codec *codec;
|
||||
int status;
|
||||
|
||||
if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
|
||||
snd_hdac_display_power(bus, true);
|
||||
@ -997,20 +973,66 @@ static int azx_resume(struct device *dev)
|
||||
snd_hdac_i915_set_bclk(bus);
|
||||
}
|
||||
|
||||
if (chip->msi)
|
||||
if (pci_enable_msi(pci) < 0)
|
||||
chip->msi = 0;
|
||||
if (azx_acquire_irq(chip, 1) < 0)
|
||||
return -EIO;
|
||||
azx_init_pci(chip);
|
||||
/* Read STATESTS before controller reset */
|
||||
status = azx_readw(chip, STATESTS);
|
||||
|
||||
azx_init_pci(chip);
|
||||
hda_intel_init_chip(chip, true);
|
||||
|
||||
if (status) {
|
||||
list_for_each_codec(codec, &chip->bus)
|
||||
if (status & (1 << codec->addr))
|
||||
schedule_delayed_work(&codec->jackpoll_work,
|
||||
codec->jackpoll_interval);
|
||||
}
|
||||
|
||||
/* power down again for link-controlled chips */
|
||||
if ((chip->driver_caps & AZX_DCAPS_I915_POWERWELL) &&
|
||||
!hda->need_i915_power)
|
||||
snd_hdac_display_power(bus, false);
|
||||
}
|
||||
|
||||
#ifdef CONFIG_PM_SLEEP
|
||||
static int azx_suspend(struct device *dev)
|
||||
{
|
||||
struct snd_card *card = dev_get_drvdata(dev);
|
||||
struct azx *chip;
|
||||
struct hdac_bus *bus;
|
||||
|
||||
if (!azx_is_pm_ready(card))
|
||||
return 0;
|
||||
|
||||
chip = card->private_data;
|
||||
bus = azx_bus(chip);
|
||||
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
|
||||
__azx_runtime_suspend(chip);
|
||||
if (bus->irq >= 0) {
|
||||
free_irq(bus->irq, chip);
|
||||
bus->irq = -1;
|
||||
}
|
||||
|
||||
if (chip->msi)
|
||||
pci_disable_msi(chip->pci);
|
||||
|
||||
trace_azx_suspend(chip);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int azx_resume(struct device *dev)
|
||||
{
|
||||
struct snd_card *card = dev_get_drvdata(dev);
|
||||
struct azx *chip;
|
||||
|
||||
if (!azx_is_pm_ready(card))
|
||||
return 0;
|
||||
|
||||
chip = card->private_data;
|
||||
if (chip->msi)
|
||||
if (pci_enable_msi(chip->pci) < 0)
|
||||
chip->msi = 0;
|
||||
if (azx_acquire_irq(chip, 1) < 0)
|
||||
return -EIO;
|
||||
__azx_runtime_resume(chip);
|
||||
snd_power_change_state(card, SNDRV_CTL_POWER_D0);
|
||||
|
||||
trace_azx_resume(chip);
|
||||
@ -1045,21 +1067,14 @@ static int azx_thaw_noirq(struct device *dev)
|
||||
}
|
||||
#endif /* CONFIG_PM_SLEEP */
|
||||
|
||||
#ifdef CONFIG_PM
|
||||
static int azx_runtime_suspend(struct device *dev)
|
||||
{
|
||||
struct snd_card *card = dev_get_drvdata(dev);
|
||||
struct azx *chip;
|
||||
struct hda_intel *hda;
|
||||
|
||||
if (!card)
|
||||
if (!azx_is_pm_ready(card))
|
||||
return 0;
|
||||
|
||||
chip = card->private_data;
|
||||
hda = container_of(chip, struct hda_intel, chip);
|
||||
if (chip->disabled || hda->init_failed)
|
||||
return 0;
|
||||
|
||||
if (!azx_has_pm_runtime(chip))
|
||||
return 0;
|
||||
|
||||
@ -1067,13 +1082,7 @@ static int azx_runtime_suspend(struct device *dev)
|
||||
azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) |
|
||||
STATESTS_INT_MASK);
|
||||
|
||||
azx_stop_chip(chip);
|
||||
azx_enter_link_reset(chip);
|
||||
azx_clear_irq_pending(chip);
|
||||
if ((chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
|
||||
&& hda->need_i915_power)
|
||||
snd_hdac_display_power(azx_bus(chip), false);
|
||||
|
||||
__azx_runtime_suspend(chip);
|
||||
trace_azx_runtime_suspend(chip);
|
||||
return 0;
|
||||
}
|
||||
@ -1082,51 +1091,18 @@ static int azx_runtime_resume(struct device *dev)
|
||||
{
|
||||
struct snd_card *card = dev_get_drvdata(dev);
|
||||
struct azx *chip;
|
||||
struct hda_intel *hda;
|
||||
struct hdac_bus *bus;
|
||||
struct hda_codec *codec;
|
||||
int status;
|
||||
|
||||
if (!card)
|
||||
if (!azx_is_pm_ready(card))
|
||||
return 0;
|
||||
|
||||
chip = card->private_data;
|
||||
hda = container_of(chip, struct hda_intel, chip);
|
||||
bus = azx_bus(chip);
|
||||
if (chip->disabled || hda->init_failed)
|
||||
return 0;
|
||||
|
||||
if (!azx_has_pm_runtime(chip))
|
||||
return 0;
|
||||
|
||||
if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
|
||||
snd_hdac_display_power(bus, true);
|
||||
if (hda->need_i915_power)
|
||||
snd_hdac_i915_set_bclk(bus);
|
||||
}
|
||||
|
||||
/* Read STATESTS before controller reset */
|
||||
status = azx_readw(chip, STATESTS);
|
||||
|
||||
azx_init_pci(chip);
|
||||
hda_intel_init_chip(chip, true);
|
||||
|
||||
if (status) {
|
||||
list_for_each_codec(codec, &chip->bus)
|
||||
if (status & (1 << codec->addr))
|
||||
schedule_delayed_work(&codec->jackpoll_work,
|
||||
codec->jackpoll_interval);
|
||||
}
|
||||
__azx_runtime_resume(chip);
|
||||
|
||||
/* disable controller Wake Up event*/
|
||||
azx_writew(chip, WAKEEN, azx_readw(chip, WAKEEN) &
|
||||
~STATESTS_INT_MASK);
|
||||
|
||||
/* power down again for link-controlled chips */
|
||||
if ((chip->driver_caps & AZX_DCAPS_I915_POWERWELL) &&
|
||||
!hda->need_i915_power)
|
||||
snd_hdac_display_power(bus, false);
|
||||
|
||||
trace_azx_runtime_resume(chip);
|
||||
return 0;
|
||||
}
|
||||
@ -1167,6 +1143,8 @@ static const struct dev_pm_ops azx_pm = {
|
||||
|
||||
#define AZX_PM_OPS &azx_pm
|
||||
#else
|
||||
#define azx_add_card_list(chip) /* NOP */
|
||||
#define azx_del_card_list(chip) /* NOP */
|
||||
#define AZX_PM_OPS NULL
|
||||
#endif /* CONFIG_PM */
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user