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author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-15 21:07:44 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-15 21:07:44 +0300 |
commit | c48b75b7271db23c1b2d1204d6e8496d91f27711 (patch) | |
tree | 83c95f082e0605257b8af3ebd70b2c448262fd88 /sound/hda/hdac_i915.c | |
parent | 93b694d096cc10994c817730d4d50288f9ae3d66 (diff) | |
parent | ce1558c285f9ad04c03b46833a028230771cc0a7 (diff) | |
download | linux-c48b75b7271db23c1b2d1204d6e8496d91f27711.tar.xz |
Merge tag 'sound-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"The amount of changes is smaller at this round (what a surprise), but
lots of activity is seen. Most of changes are about ASoC driver
development, especially Intel platforms. Here are some highlights:
General:
- Replace all tasklet usages with other alternatives
- Cleanup of the ASoC error unwinding code
- Fixes for trivial issues caught by static checker
- Spell fixes allover the places
ALSA Core:
- Lockdep fix for control devices
- Fix for potential OSS sequencer mutex stalls
HD-audio and USB-audio:
- SoundBlaster AE-7 support
- Changes in quirk table for the rename handling
- Quirks for HP and ASUS machines, Pioneer DJ DJM-250MK2.
ASoC:
- Lots of updates for Intel SOF and SoundWire enablement
- Replacement of the DSP driver for some older x86 systems; the new
code was written from scratch, better maintenance expected
- Helpers for parsing auxiluary devices from the device tree
- New support for AllWinner A64, Cirrus Logic CS4234, Mediatek MT6359
Microchip S/PDIF TX and RX controllers, Realtek RT1015P, and Texas
Instruments J721E, TAS2110, TAS2564 and TAS2764"
* tag 'sound-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (498 commits)
ALSA: hda/hdmi: fix incorrect locking in hdmi_pcm_close
ALSA: hda: fix jack detection with Realtek codecs when in D3
ALSA: fireworks: use semicolons rather than commas to separate statements
ALSA: hda: use semicolons rather than commas to separate statements
ALSA: hda/i915 - fix list corruption with concurrent probes
ASoC: dmaengine: Document support for TX only or RX only streams
ASoC: mchp-spdiftx: remove 'TX' from playback stream name
ASoC: ti: davinci-mcasp: Use &pdev->dev for early dev_warn
ASoC: tas2764: Add the driver for the TAS2764
dt-bindings: tas2764: Add the TAS2764 binding doc
ASoC: Intel: catpt: Add explicit DMADEVICES kconfig dependency
ASoC: Intel: catpt: Fix compilation when CONFIG_MODULES is disabled
ASoC: stm32: dfsdm: add actual resolution trace
ASoC: stm32: dfsdm: change rate limits
ASoC: qcom: sc7180: Add support for audio over DP
Asoc: qcom: lpass-platform : Increase buffer size
ASoC: qcom: Add support for lpass hdmi driver
Asoc: qcom: lpass:Update lpaif_dmactl members order
Asoc:qcom:lpass-cpu:Update dts property read API
ASoC: dt-bindings: Add dt binding for lpass hdmi
...
Diffstat (limited to 'sound/hda/hdac_i915.c')
-rw-r--r-- | sound/hda/hdac_i915.c | 69 |
1 files changed, 45 insertions, 24 deletions
diff --git a/sound/hda/hdac_i915.c b/sound/hda/hdac_i915.c index 3c2db3816029..454474ac5716 100644 --- a/sound/hda/hdac_i915.c +++ b/sound/hda/hdac_i915.c @@ -11,9 +11,7 @@ #include <sound/hda_i915.h> #include <sound/hda_register.h> -static struct completion bind_complete; - -#define CONTROLLER_IN_GPU(pci) (((pci)->device == 0x0a0c) || \ +#define IS_HSW_CONTROLLER(pci) (((pci)->device == 0x0a0c) || \ ((pci)->device == 0x0c0c) || \ ((pci)->device == 0x0d0c) || \ ((pci)->device == 0x160c)) @@ -41,7 +39,7 @@ void snd_hdac_i915_set_bclk(struct hdac_bus *bus) if (!acomp || !acomp->ops || !acomp->ops->get_cdclk_freq) return; /* only for i915 binding */ - if (!CONTROLLER_IN_GPU(pci)) + if (!IS_HSW_CONTROLLER(pci)) return; /* only HSW/BDW */ cdclk_freq = acomp->ops->get_cdclk_freq(acomp->dev); @@ -73,11 +71,49 @@ void snd_hdac_i915_set_bclk(struct hdac_bus *bus) } EXPORT_SYMBOL_GPL(snd_hdac_i915_set_bclk); +/* returns true if the devices can be connected for audio */ +static bool connectivity_check(struct pci_dev *i915, struct pci_dev *hdac) +{ + struct pci_bus *bus_a = i915->bus, *bus_b = hdac->bus; + + /* directly connected on the same bus */ + if (bus_a == bus_b) + return true; + + /* + * on i915 discrete GPUs with embedded HDA audio, the two + * devices are connected via 2nd level PCI bridge + */ + bus_a = bus_a->parent; + bus_b = bus_b->parent; + if (!bus_a || !bus_b) + return false; + bus_a = bus_a->parent; + bus_b = bus_b->parent; + if (bus_a && bus_a == bus_b) + return true; + + return false; +} + static int i915_component_master_match(struct device *dev, int subcomponent, void *data) { - return !strcmp(dev->driver->name, "i915") && - subcomponent == I915_COMPONENT_AUDIO; + struct pci_dev *hdac_pci, *i915_pci; + struct hdac_bus *bus = data; + + if (!dev_is_pci(dev)) + return 0; + + hdac_pci = to_pci_dev(bus->dev); + i915_pci = to_pci_dev(dev); + + if (!strcmp(dev->driver->name, "i915") && + subcomponent == I915_COMPONENT_AUDIO && + connectivity_check(i915_pci, hdac_pci)) + return 1; + + return 0; } /* check whether intel graphics is present */ @@ -92,19 +128,6 @@ static bool i915_gfx_present(void) return pci_dev_present(ids); } -static int i915_master_bind(struct device *dev, - struct drm_audio_component *acomp) -{ - complete_all(&bind_complete); - /* clear audio_ops here as it was needed only for completion call */ - acomp->audio_ops = NULL; - return 0; -} - -static const struct drm_audio_component_audio_ops i915_init_ops = { - .master_bind = i915_master_bind -}; - /** * snd_hdac_i915_init - Initialize i915 audio component * @bus: HDA core bus @@ -125,9 +148,7 @@ int snd_hdac_i915_init(struct hdac_bus *bus) if (!i915_gfx_present()) return -ENODEV; - init_completion(&bind_complete); - - err = snd_hdac_acomp_init(bus, &i915_init_ops, + err = snd_hdac_acomp_init(bus, NULL, i915_component_master_match, sizeof(struct i915_audio_component) - sizeof(*acomp)); if (err < 0) @@ -139,8 +160,8 @@ int snd_hdac_i915_init(struct hdac_bus *bus) if (!IS_ENABLED(CONFIG_MODULES) || !request_module("i915")) { /* 60s timeout */ - wait_for_completion_timeout(&bind_complete, - msecs_to_jiffies(60 * 1000)); + wait_for_completion_timeout(&acomp->master_bind_complete, + msecs_to_jiffies(60 * 1000)); } } if (!acomp->ops) { |