1 files changed, 34 insertions, 27 deletions

diff --git a/sound/pci/hda/patch_intelhdmi.c b/sound/pci/hda/patch_intelhdmi.c
index 3564f4e4b74c..fcc77fec4487 100644
--- a/sound/pci/hda/patch_intelhdmi.c
+++ b/sound/pci/hda/patch_intelhdmi.c
@@ -49,11 +49,6 @@ static struct hda_verb pinout_enable_verb[] = {
         {} /* terminator */
 };
 
-static struct hda_verb pinout_disable_verb[] = {
-        {PIN_NID, AC_VERB_SET_PIN_WIDGET_CONTROL, 0x00},
-        {}
-};
-
 static struct hda_verb unsolicited_response_verb[] = {
         {PIN_NID, AC_VERB_SET_UNSOLICITED_ENABLE, AC_USRSP_EN |
                                                   INTEL_HDMI_EVENT_TAG},
@@ -248,10 +243,6 @@ static void hdmi_write_dip_byte(struct hda_codec *codec, hda_nid_t nid,
 
 static void hdmi_enable_output(struct hda_codec *codec)
 {
-        /* Enable Audio InfoFrame Transmission */
-        hdmi_set_dip_index(codec, PIN_NID, 0x0, 0x0);
-        snd_hda_codec_write(codec, PIN_NID, 0, AC_VERB_SET_HDMI_DIP_XMIT,
-                                                AC_DIPXMIT_BEST);
         /* Unmute */
         if (get_wcaps(codec, PIN_NID) & AC_WCAP_OUT_AMP)
                 snd_hda_codec_write(codec, PIN_NID, 0,
@@ -260,17 +251,24 @@ static void hdmi_enable_output(struct hda_codec *codec)
         snd_hda_sequence_write(codec, pinout_enable_verb);
 }
 
-static void hdmi_disable_output(struct hda_codec *codec)
+/*
+ * Enable Audio InfoFrame Transmission
+ */
+static void hdmi_start_infoframe_trans(struct hda_codec *codec)
 {
-        snd_hda_sequence_write(codec, pinout_disable_verb);
-        if (get_wcaps(codec, PIN_NID) & AC_WCAP_OUT_AMP)
-                snd_hda_codec_write(codec, PIN_NID, 0,
-                                AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE);
+        hdmi_set_dip_index(codec, PIN_NID, 0x0, 0x0);
+        snd_hda_codec_write(codec, PIN_NID, 0, AC_VERB_SET_HDMI_DIP_XMIT,
+                                                AC_DIPXMIT_BEST);
+}
 
-        /*
-         * FIXME: noises may arise when playing music after reloading the
-         * kernel module, until the next X restart or monitor repower.
-         */
+/*
+ * Disable Audio InfoFrame Transmission
+ */
+static void hdmi_stop_infoframe_trans(struct hda_codec *codec)
+{
+        hdmi_set_dip_index(codec, PIN_NID, 0x0, 0x0);
+        snd_hda_codec_write(codec, PIN_NID, 0, AC_VERB_SET_HDMI_DIP_XMIT,
+                                                AC_DIPXMIT_DISABLE);
 }
 
 static int hdmi_get_channel_count(struct hda_codec *codec)
@@ -368,11 +366,16 @@ static void hdmi_fill_audio_infoframe(struct hda_codec *codec,
                                         struct hdmi_audio_infoframe *ai)
 {
         u8 *params = (u8 *)ai;
+        u8 sum = 0;
         int i;
 
         hdmi_debug_dip_size(codec);
         hdmi_clear_dip_buffers(codec); /* be paranoid */
 
+        for (i = 0; i < sizeof(ai); i++)
+                sum += params[i];
+        ai->checksum = - sum;
+
         hdmi_set_dip_index(codec, PIN_NID, 0x0, 0x0);
         for (i = 0; i < sizeof(ai); i++)
                 hdmi_write_dip_byte(codec, PIN_NID, params[i]);
@@ -419,14 +422,18 @@ static int hdmi_setup_channel_allocation(struct hda_codec *codec,
         /*
          * CA defaults to 0 for basic stereo audio
          */
-        if (!eld->eld_ver)
-                return 0;
-        if (!eld->spk_alloc)
-                return 0;
         if (channels <= 2)
                 return 0;
 
         /*
+         * HDMI sink's ELD info cannot always be retrieved for now, e.g.
+         * in console or for audio devices. Assume the highest speakers
+         * configuration, to _not_ prohibit multi-channel audio playback.
+         */
+        if (!eld->spk_alloc)
+                eld->spk_alloc = 0xffff;
+
+        /*
          * expand ELD's speaker allocation mask
          *
          * ELD tells the speaker mask in a compact(paired) form,
@@ -485,6 +492,7 @@ static void hdmi_setup_audio_infoframe(struct hda_codec *codec,
         hdmi_setup_channel_mapping(codec, &ai);
 
         hdmi_fill_audio_infoframe(codec, &ai);
+        hdmi_start_infoframe_trans(codec);
 }
 
 
@@ -562,7 +570,7 @@ static int intel_hdmi_playback_pcm_close(struct hda_pcm_stream *hinfo,
 {
         struct intel_hdmi_spec *spec = codec->spec;
 
-        hdmi_disable_output(codec);
+        hdmi_stop_infoframe_trans(codec);
 
         return snd_hda_multi_out_dig_close(codec, &spec->multiout);
 }
@@ -582,8 +590,6 @@ static int intel_hdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
 
         hdmi_setup_audio_infoframe(codec, substream);
 
-        hdmi_enable_output(codec);
-
         return 0;
 }
 
@@ -628,8 +634,7 @@ static int intel_hdmi_build_controls(struct hda_codec *codec)
 
 static int intel_hdmi_init(struct hda_codec *codec)
 {
-        /* disable audio output as early as possible */
-        hdmi_disable_output(codec);
+        hdmi_enable_output(codec);
 
         snd_hda_sequence_write(codec, unsolicited_response_verb);
 
@@ -679,6 +684,7 @@ static struct hda_codec_preset snd_hda_preset_intelhdmi[] = {
         { .id = 0x80862801, .name = "G45 DEVBLC", .patch = patch_intel_hdmi },
         { .id = 0x80862802, .name = "G45 DEVCTG", .patch = patch_intel_hdmi },
         { .id = 0x80862803, .name = "G45 DEVELK", .patch = patch_intel_hdmi },
+        { .id = 0x80862804, .name = "G45 DEVIBX", .patch = patch_intel_hdmi },
         { .id = 0x10951392, .name = "SiI1392 HDMI",     .patch = patch_intel_hdmi },
         {} /* terminator */
 };
@@ -687,6 +693,7 @@ MODULE_ALIAS("snd-hda-codec-id:808629fb");
 MODULE_ALIAS("snd-hda-codec-id:80862801");
 MODULE_ALIAS("snd-hda-codec-id:80862802");
 MODULE_ALIAS("snd-hda-codec-id:80862803");
+MODULE_ALIAS("snd-hda-codec-id:80862804");
 MODULE_ALIAS("snd-hda-codec-id:10951392");
 
 MODULE_LICENSE("GPL");