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 --- sound/pci/hda/hda_intel.c | 160 ++++++++++++++++---------------------- 1 file changed, 69 insertions(+), 91 deletions(-)
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 76f03abd15ab..cc06a323c817 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -930,35 +930,82 @@ 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 false; + return true; +} + +static void __azx_runtime_suspend(struct azx *chip) +{ + struct hda_intel *hda = container_of(chip, struct hda_intel, chip); + + 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); +} + +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); + 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); + } + + /* 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_clear_irq_pending(chip); - azx_stop_chip(chip); - azx_enter_link_reset(chip); + __azx_runtime_suspend(chip); if (bus->irq >= 0) { free_irq(bus->irq, chip); bus->irq = -1; @@ -966,9 +1013,6 @@ static int azx_suspend(struct device *dev)
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; @@ -976,41 +1020,19 @@ static int azx_suspend(struct device *dev)
static int azx_resume(struct device *dev) { - 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;
- 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 || !chip->running) - 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); - } - if (chip->msi) - if (pci_enable_msi(pci) < 0) + if (pci_enable_msi(chip->pci) < 0) chip->msi = 0; if (azx_acquire_irq(chip, 1) < 0) return -EIO; - azx_init_pci(chip); - - hda_intel_init_chip(chip, true); - - /* 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); - + __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 */