diff options
Diffstat (limited to 'sound/pci/hda/hda_intel.c')
-rw-r--r-- | sound/pci/hda/hda_intel.c | 87 |
1 files changed, 70 insertions, 17 deletions
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index de18722..35e9f8b 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -62,6 +62,7 @@ #include <linux/vga_switcheroo.h> #include <linux/firmware.h> #include "hda_codec.h" +#include "hda_i915.h" static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; @@ -541,6 +542,10 @@ struct azx { /* for pending irqs */ struct work_struct irq_pending_work; +#ifdef CONFIG_SND_HDA_I915 + struct work_struct probe_work; +#endif + /* reboot notifier (for mysterious hangup problem at power-down) */ struct notifier_block reboot_notifier; @@ -594,6 +599,7 @@ enum { #define AZX_DCAPS_4K_BDLE_BOUNDARY (1 << 23) /* BDLE in 4k boundary */ #define AZX_DCAPS_COUNT_LPIB_DELAY (1 << 25) /* Take LPIB as delay */ #define AZX_DCAPS_PM_RUNTIME (1 << 26) /* runtime PM support */ +#define AZX_DCAPS_I915_POWERWELL (1 << 27) /* HSW i915 power well support */ /* quirks for Intel PCH */ #define AZX_DCAPS_INTEL_PCH_NOPM \ @@ -2900,6 +2906,8 @@ static int azx_suspend(struct device *dev) pci_disable_device(pci); pci_save_state(pci); pci_set_power_state(pci, PCI_D3hot); + if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) + hda_display_power(false); return 0; } @@ -2912,6 +2920,8 @@ static int azx_resume(struct device *dev) if (chip->disabled) return 0; + if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) + hda_display_power(true); pci_set_power_state(pci, PCI_D0); pci_restore_state(pci); if (pci_enable_device(pci) < 0) { @@ -2944,6 +2954,8 @@ static int azx_runtime_suspend(struct device *dev) azx_stop_chip(chip); azx_clear_irq_pending(chip); + if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) + hda_display_power(false); return 0; } @@ -2952,6 +2964,8 @@ static int azx_runtime_resume(struct device *dev) struct snd_card *card = dev_get_drvdata(dev); struct azx *chip = card->private_data; + if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) + hda_display_power(true); azx_init_pci(chip); azx_init_chip(chip, 1); return 0; @@ -3006,7 +3020,6 @@ static void azx_notifier_unregister(struct azx *chip) unregister_reboot_notifier(&chip->reboot_notifier); } -static int azx_first_init(struct azx *chip); static int azx_probe_continue(struct azx *chip); #ifdef SUPPORT_VGA_SWITCHEROO @@ -3033,8 +3046,7 @@ static void azx_vs_set_state(struct pci_dev *pci, snd_printk(KERN_INFO SFX "%s: Start delayed initialization\n", pci_name(chip->pci)); - if (azx_first_init(chip) < 0 || - azx_probe_continue(chip) < 0) { + if (azx_probe_continue(chip) < 0) { snd_printk(KERN_ERR SFX "%s: initialization error\n", pci_name(chip->pci)); @@ -3120,8 +3132,13 @@ static int register_vga_switcheroo(struct azx *chip) */ static int azx_free(struct azx *chip) { + struct pci_dev *pci = chip->pci; int i; + if ((chip->driver_caps & AZX_DCAPS_PM_RUNTIME) + && chip->running) + pm_runtime_get_noresume(&pci->dev); + azx_del_card_list(chip); azx_notifier_unregister(chip); @@ -3173,6 +3190,10 @@ static int azx_free(struct azx *chip) if (chip->fw) release_firmware(chip->fw); #endif + if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) { + hda_display_power(false); + hda_i915_exit(); + } kfree(chip); return 0; @@ -3398,6 +3419,13 @@ static void azx_check_snoop_available(struct azx *chip) } } +#ifdef CONFIG_SND_HDA_I915 +static void azx_probe_work(struct work_struct *work) +{ + azx_probe_continue(container_of(work, struct azx, probe_work)); +} +#endif + /* * constructor */ @@ -3473,7 +3501,13 @@ static int azx_create(struct snd_card *card, struct pci_dev *pci, return err; } +#ifdef CONFIG_SND_HDA_I915 + /* continue probing in work context as may trigger request module */ + INIT_WORK(&chip->probe_work, azx_probe_work); +#endif + *rchip = chip; + return 0; } @@ -3730,11 +3764,6 @@ static int azx_probe(struct pci_dev *pci, } probe_now = !chip->disabled; - if (probe_now) { - err = azx_first_init(chip); - if (err < 0) - goto out_free; - } #ifdef CONFIG_SND_HDA_PATCH_LOADER if (patch[dev] && *patch[dev]) { @@ -3749,15 +3778,22 @@ static int azx_probe(struct pci_dev *pci, } #endif /* CONFIG_SND_HDA_PATCH_LOADER */ + /* continue probing in work context, avoid request_module deadlock */ + if (probe_now && (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)) { +#ifdef CONFIG_SND_HDA_I915 + probe_now = false; + schedule_work(&chip->probe_work); +#else + snd_printk(KERN_ERR SFX "Haswell must build in CONFIG_SND_HDA_I915\n"); +#endif + } + if (probe_now) { err = azx_probe_continue(chip); if (err < 0) goto out_free; } - if (pci_dev_run_wake(pci)) - pm_runtime_put_noidle(&pci->dev); - dev++; complete_all(&chip->probe_wait); return 0; @@ -3770,9 +3806,24 @@ out_free: static int azx_probe_continue(struct azx *chip) { + struct pci_dev *pci = chip->pci; int dev = chip->dev_index; int err; + /* Request power well for Haswell HDA controller and codec */ + if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) { + err = hda_i915_init(); + if (err < 0) { + snd_printk(KERN_ERR SFX "Error request power-well from i915\n"); + goto out_free; + } + hda_display_power(true); + } + + err = azx_first_init(chip); + if (err < 0) + goto out_free; + #ifdef CONFIG_SND_HDA_INPUT_BEEP chip->beep_mode = beep_mode[dev]; #endif @@ -3817,6 +3868,8 @@ static int azx_probe_continue(struct azx *chip) power_down_all_codecs(chip); azx_notifier_register(chip); azx_add_card_list(chip); + if (chip->driver_caps & AZX_DCAPS_PM_RUNTIME) + pm_runtime_put_noidle(&pci->dev); return 0; @@ -3829,9 +3882,6 @@ static void azx_remove(struct pci_dev *pci) { struct snd_card *card = pci_get_drvdata(pci); - if (pci_dev_run_wake(pci)) - pm_runtime_get_noresume(&pci->dev); - if (card) snd_card_free(card); pci_set_drvdata(pci, NULL); @@ -3864,11 +3914,14 @@ static DEFINE_PCI_DEVICE_TABLE(azx_ids) = { .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH }, /* Haswell */ { PCI_DEVICE(0x8086, 0x0a0c), - .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH }, + .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH | + AZX_DCAPS_I915_POWERWELL }, { PCI_DEVICE(0x8086, 0x0c0c), - .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH }, + .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH | + AZX_DCAPS_I915_POWERWELL }, { PCI_DEVICE(0x8086, 0x0d0c), - .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH }, + .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH | + AZX_DCAPS_I915_POWERWELL }, /* 5 Series/3400 */ { PCI_DEVICE(0x8086, 0x3b56), .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM }, |