| Message ID | 20230719164141.228073-4-maarten.lankhorst@linux.intel.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | sound: Use -EPROBE_DEFER instead of i915 module loading. | expand |
On 19/07/2023 19:41, Maarten Lankhorst wrote: > Xe is a new GPU driver that re-uses the display (and sound) code from > i915. It's no longer possible to load i915, as the GPU can be driven > by the xe driver instead. > > The new behavior will return -EPROBE_DEFER, and wait for a compatible > driver to be loaded instead of modprobing i915. > > Converting all drivers at the same time is a lot of work, instead we > will convert each user one by one. > > Changes since v1: > - Use dev_err_probe to set a probe reason for debugfs' deferred_devices. > > Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> > --- > include/sound/hda_i915.h | 4 ++-- > sound/hda/hdac_i915.c | 8 ++++---- > sound/pci/hda/hda_intel.c | 2 +- > sound/soc/intel/avs/core.c | 2 +- > sound/soc/intel/skylake/skl.c | 2 +- > sound/soc/sof/intel/hda-codec.c | 2 +- > 6 files changed, 10 insertions(+), 10 deletions(-) > > diff --git a/sound/hda/hdac_i915.c b/sound/hda/hdac_i915.c > index c32709fa4115f..961fcd3397f40 100644 > --- a/sound/hda/hdac_i915.c > +++ b/sound/hda/hdac_i915.c > @@ -155,7 +155,7 @@ static int i915_gfx_present(struct pci_dev *hdac_pci) > * > * Returns zero for success or a negative error code. > */ > -int snd_hdac_i915_init(struct hdac_bus *bus) > +int snd_hdac_i915_init(struct hdac_bus *bus, bool allow_modprobe) > { > struct drm_audio_component *acomp; > int err; > @@ -171,7 +171,7 @@ int snd_hdac_i915_init(struct hdac_bus *bus) > acomp = bus->audio_component; > if (!acomp) > return -ENODEV; > - if (!acomp->ops) { > + if (allow_modprobe && !acomp->ops) { > if (!IS_ENABLED(CONFIG_MODULES) || > !request_module("i915")) { > /* 60s timeout */ > @@ -180,9 +180,9 @@ int snd_hdac_i915_init(struct hdac_bus *bus) > } > } > if (!acomp->ops) { > - dev_info(bus->dev, "couldn't bind with audio component\n"); > + int err = allow_modprobe ? -ENODEV : -EPROBE_DEFER; Add one blank line here. > snd_hdac_acomp_exit(bus); > - return -ENODEV; > + return dev_err_probe(bus->dev, err, "couldn't bind with audio component\n"); > } > return 0; > }
diff --git a/include/sound/hda_i915.h b/include/sound/hda_i915.h index 6b79614a893b9..f91bd66360865 100644 --- a/include/sound/hda_i915.h +++ b/include/sound/hda_i915.h @@ -9,12 +9,12 @@ #ifdef CONFIG_SND_HDA_I915 void snd_hdac_i915_set_bclk(struct hdac_bus *bus); -int snd_hdac_i915_init(struct hdac_bus *bus); +int snd_hdac_i915_init(struct hdac_bus *bus, bool allow_modprobe); #else static inline void snd_hdac_i915_set_bclk(struct hdac_bus *bus) { } -static inline int snd_hdac_i915_init(struct hdac_bus *bus) +static inline int snd_hdac_i915_init(struct hdac_bus *bus, bool allow_modprobe) { return -ENODEV; } diff --git a/sound/hda/hdac_i915.c b/sound/hda/hdac_i915.c index c32709fa4115f..961fcd3397f40 100644 --- a/sound/hda/hdac_i915.c +++ b/sound/hda/hdac_i915.c @@ -155,7 +155,7 @@ static int i915_gfx_present(struct pci_dev *hdac_pci) * * Returns zero for success or a negative error code. */ -int snd_hdac_i915_init(struct hdac_bus *bus) +int snd_hdac_i915_init(struct hdac_bus *bus, bool allow_modprobe) { struct drm_audio_component *acomp; int err; @@ -171,7 +171,7 @@ int snd_hdac_i915_init(struct hdac_bus *bus) acomp = bus->audio_component; if (!acomp) return -ENODEV; - if (!acomp->ops) { + if (allow_modprobe && !acomp->ops) { if (!IS_ENABLED(CONFIG_MODULES) || !request_module("i915")) { /* 60s timeout */ @@ -180,9 +180,9 @@ int snd_hdac_i915_init(struct hdac_bus *bus) } } if (!acomp->ops) { - dev_info(bus->dev, "couldn't bind with audio component\n"); + int err = allow_modprobe ? -ENODEV : -EPROBE_DEFER; snd_hdac_acomp_exit(bus); - return -ENODEV; + return dev_err_probe(bus->dev, err, "couldn't bind with audio component\n"); } return 0; } diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 0d2d6bc6c75ef..11cf9907f039f 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -2277,7 +2277,7 @@ static int azx_probe_continue(struct azx *chip) /* bind with i915 if needed */ if (chip->driver_caps & AZX_DCAPS_I915_COMPONENT) { - err = snd_hdac_i915_init(bus); + err = snd_hdac_i915_init(bus, true); if (err < 0) { /* if the controller is bound only with HDMI/DP * (for HSW and BDW), we need to abort the probe; diff --git a/sound/soc/intel/avs/core.c b/sound/soc/intel/avs/core.c index 6375018507288..3311a6f142001 100644 --- a/sound/soc/intel/avs/core.c +++ b/sound/soc/intel/avs/core.c @@ -191,7 +191,7 @@ static void avs_hda_probe_work(struct work_struct *work) pm_runtime_set_active(bus->dev); /* clear runtime_error flag */ - ret = snd_hdac_i915_init(bus); + ret = snd_hdac_i915_init(bus, true); if (ret < 0) dev_info(bus->dev, "i915 init unsuccessful: %d\n", ret); diff --git a/sound/soc/intel/skylake/skl.c b/sound/soc/intel/skylake/skl.c index 998bd0232cf1d..4d93b86904673 100644 --- a/sound/soc/intel/skylake/skl.c +++ b/sound/soc/intel/skylake/skl.c @@ -791,7 +791,7 @@ static int skl_i915_init(struct hdac_bus *bus) * The HDMI codec is in GPU so we need to ensure that it is powered * up and ready for probe */ - err = snd_hdac_i915_init(bus); + err = snd_hdac_i915_init(bus, true); if (err < 0) return err; diff --git a/sound/soc/sof/intel/hda-codec.c b/sound/soc/sof/intel/hda-codec.c index 8a5e99a898ecb..f1fd5b44aaac9 100644 --- a/sound/soc/sof/intel/hda-codec.c +++ b/sound/soc/sof/intel/hda-codec.c @@ -415,7 +415,7 @@ int hda_codec_i915_init(struct snd_sof_dev *sdev) return 0; /* i915 exposes a HDA codec for HDMI audio */ - ret = snd_hdac_i915_init(bus); + ret = snd_hdac_i915_init(bus, true); if (ret < 0) return ret;
Xe is a new GPU driver that re-uses the display (and sound) code from i915. It's no longer possible to load i915, as the GPU can be driven by the xe driver instead. The new behavior will return -EPROBE_DEFER, and wait for a compatible driver to be loaded instead of modprobing i915. Converting all drivers at the same time is a lot of work, instead we will convert each user one by one. Changes since v1: - Use dev_err_probe to set a probe reason for debugfs' deferred_devices. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> --- include/sound/hda_i915.h | 4 ++-- sound/hda/hdac_i915.c | 8 ++++---- sound/pci/hda/hda_intel.c | 2 +- sound/soc/intel/avs/core.c | 2 +- sound/soc/intel/skylake/skl.c | 2 +- sound/soc/sof/intel/hda-codec.c | 2 +- 6 files changed, 10 insertions(+), 10 deletions(-)