From fcc88d91cd36d1343a0ccc09444b21f6b0dad2d8 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 28 Jun 2017 12:54:53 +0200 Subject: ALSA: hda - Bind with i915 component before codec binding We used a on-demand i915 component binding for IvyBridge and SandyBridge HDMI codecs, but it has a potential problem of the nested module loading. For avoiding that situation, assure the i915 binding happening at the controller driver level for PCH controller devices, where the initialization is performed in a detached work, instead of calling from the codec driver probe. Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_hdmi.c | 17 +++++------------ 1 file changed, 5 insertions(+), 12 deletions(-) (limited to 'sound/pci/hda/patch_hdmi.c') diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index 90e4ff87445e..feed8e8de2af 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -174,7 +174,6 @@ struct hdmi_spec { /* i915/powerwell (Haswell+/Valleyview+) specific */ bool use_acomp_notifier; /* use i915 eld_notify callback for hotplug */ struct i915_audio_component_audio_ops i915_audio_ops; - bool i915_bound; /* was i915 bound in this driver? */ struct hdac_chmap chmap; hda_nid_t vendor_nid; @@ -2234,8 +2233,6 @@ static void generic_spec_free(struct hda_codec *codec) struct hdmi_spec *spec = codec->spec; if (spec) { - if (spec->i915_bound) - snd_hdac_i915_exit(&codec->bus->core); hdmi_array_free(spec); kfree(spec); codec->spec = NULL; @@ -2607,21 +2604,17 @@ static int patch_i915_cpt_hdmi(struct hda_codec *codec) struct hdmi_spec *spec; int err; - /* no i915 component should have been bound before this */ - if (WARN_ON(codec->bus->core.audio_component)) - return -EBUSY; + /* requires i915 binding */ + if (!codec->bus->core.audio_component) { + codec_info(codec, "No i915 binding for Intel HDMI/DP codec\n"); + return -ENODEV; + } err = alloc_generic_hdmi(codec); if (err < 0) return err; spec = codec->spec; - /* Try to bind with i915 now */ - err = snd_hdac_i915_init(&codec->bus->core); - if (err < 0) - goto error; - spec->i915_bound = true; - err = hdmi_parse_codec(codec); if (err < 0) goto error; -- cgit From 43f6c8d97bbdc05858b3d64e4c683821ce46c2db Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 28 Jun 2017 14:18:29 +0200 Subject: ALSA: hda - Minor code refactoring for Intel HDMI codec parsers No functional change, just a slight reduction of lines. Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_hdmi.c | 87 ++++++++++++++++++---------------------------- 1 file changed, 34 insertions(+), 53 deletions(-) (limited to 'sound/pci/hda/patch_hdmi.c') diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index feed8e8de2af..8704ea43381e 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -2503,19 +2503,41 @@ static void i915_pin_cvt_fixup(struct hda_codec *codec, } } -/* Intel Haswell and onwards; audio component with eld notifier */ -static int intel_hsw_common_init(struct hda_codec *codec, hda_nid_t vendor_nid) +/* precondition and allocation for Intel codecs */ +static int alloc_intel_hdmi(struct hda_codec *codec) { - struct hdmi_spec *spec; - int err; - - /* HSW+ requires i915 binding */ + /* requires i915 binding */ if (!codec->bus->core.audio_component) { codec_info(codec, "No i915 binding for Intel HDMI/DP codec\n"); return -ENODEV; } - err = alloc_generic_hdmi(codec); + return alloc_generic_hdmi(codec); +} + +/* parse and post-process for Intel codecs */ +static int parse_intel_hdmi(struct hda_codec *codec) +{ + int err; + + err = hdmi_parse_codec(codec); + if (err < 0) { + generic_spec_free(codec); + return err; + } + + generic_hdmi_init_per_pins(codec); + register_i915_notifier(codec); + return 0; +} + +/* Intel Haswell and onwards; audio component with eld notifier */ +static int intel_hsw_common_init(struct hda_codec *codec, hda_nid_t vendor_nid) +{ + struct hdmi_spec *spec; + int err; + + err = alloc_intel_hdmi(codec); if (err < 0) return err; spec = codec->spec; @@ -2539,15 +2561,7 @@ static int intel_hsw_common_init(struct hda_codec *codec, hda_nid_t vendor_nid) spec->ops.setup_stream = i915_hsw_setup_stream; spec->ops.pin_cvt_fixup = i915_pin_cvt_fixup; - err = hdmi_parse_codec(codec); - if (err < 0) { - generic_spec_free(codec); - return err; - } - - generic_hdmi_init_per_pins(codec); - register_i915_notifier(codec); - return 0; + return parse_intel_hdmi(codec); } static int patch_i915_hsw_hdmi(struct hda_codec *codec) @@ -2566,13 +2580,7 @@ static int patch_i915_byt_hdmi(struct hda_codec *codec) struct hdmi_spec *spec; int err; - /* requires i915 binding */ - if (!codec->bus->core.audio_component) { - codec_info(codec, "No i915 binding for Intel HDMI/DP codec\n"); - return -ENODEV; - } - - err = alloc_generic_hdmi(codec); + err = alloc_intel_hdmi(codec); if (err < 0) return err; spec = codec->spec; @@ -2587,45 +2595,18 @@ static int patch_i915_byt_hdmi(struct hda_codec *codec) spec->ops.pin_cvt_fixup = i915_pin_cvt_fixup; - err = hdmi_parse_codec(codec); - if (err < 0) { - generic_spec_free(codec); - return err; - } - - generic_hdmi_init_per_pins(codec); - register_i915_notifier(codec); - return 0; + return parse_intel_hdmi(codec); } /* Intel IronLake, SandyBridge and IvyBridge; with eld notifier */ static int patch_i915_cpt_hdmi(struct hda_codec *codec) { - struct hdmi_spec *spec; int err; - /* requires i915 binding */ - if (!codec->bus->core.audio_component) { - codec_info(codec, "No i915 binding for Intel HDMI/DP codec\n"); - return -ENODEV; - } - - err = alloc_generic_hdmi(codec); + err = alloc_intel_hdmi(codec); if (err < 0) return err; - spec = codec->spec; - - err = hdmi_parse_codec(codec); - if (err < 0) - goto error; - - generic_hdmi_init_per_pins(codec); - register_i915_notifier(codec); - return 0; - - error: - generic_spec_free(codec); - return err; + return parse_intel_hdmi(codec); } /* -- cgit