From 116dcde638065a6b94344ca570e1e79c8e857826 Mon Sep 17 00:00:00 2001 From: David Henningsson Date: Tue, 23 Nov 2010 10:23:40 +0100 Subject: [PATCH] ALSA: HDA: Remove unconnected PCM devices for Intel HDMI Some newer chips have more than one HDMI output, but usually not all of them are exposed as physical jacks. Removing the unused PCM devices (as indicated by BIOS in the pin config default) will reduce user confusion as they currently have to choose between several HDMI devices, some of them not working anyway. Signed-off-by: David Henningsson Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_hdmi.c | 41 ++++++++++++++++++++++++++++++++--------- 1 file changed, 32 insertions(+), 9 deletions(-) diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index 8f07719..d1b1b57 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -904,23 +904,28 @@ static int hdmi_add_pin(struct hda_codec *codec, hda_nid_t pin_nid) spec->pin[spec->num_pins] = pin_nid; spec->num_pins++; - /* - * It is assumed that converter nodes come first in the node list and - * hence have been registered and usable now. - */ return hdmi_read_pin_conn(codec, pin_nid); } static int hdmi_add_cvt(struct hda_codec *codec, hda_nid_t nid) { + int i, found_pin = 0; struct hdmi_spec *spec = codec->spec; - if (spec->num_cvts >= MAX_HDMI_CVTS) { - snd_printk(KERN_WARNING - "HDMI: no space for converter %d\n", nid); - return -E2BIG; + for (i = 0; i < spec->num_pins; i++) + if (nid == spec->pin_cvt[i]) { + found_pin = 1; + break; + } + + if (!found_pin) { + snd_printdd("HDMI: Skipping node %d (no connection)\n", nid); + return -EINVAL; } + if (snd_BUG_ON(spec->num_cvts >= MAX_HDMI_CVTS)) + return -E2BIG; + spec->cvt[spec->num_cvts] = nid; spec->num_cvts++; @@ -931,6 +936,8 @@ static int hdmi_parse_codec(struct hda_codec *codec) { hda_nid_t nid; int i, nodes; + int num_tmp_cvts = 0; + hda_nid_t tmp_cvt[MAX_HDMI_CVTS]; nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid); if (!nid || nodes < 0) { @@ -941,6 +948,7 @@ static int hdmi_parse_codec(struct hda_codec *codec) for (i = 0; i < nodes; i++, nid++) { unsigned int caps; unsigned int type; + unsigned int config; caps = snd_hda_param_read(codec, nid, AC_PAR_AUDIO_WIDGET_CAP); type = get_wcaps_type(caps); @@ -950,17 +958,32 @@ static int hdmi_parse_codec(struct hda_codec *codec) switch (type) { case AC_WID_AUD_OUT: - hdmi_add_cvt(codec, nid); + if (num_tmp_cvts >= MAX_HDMI_CVTS) { + snd_printk(KERN_WARNING + "HDMI: no space for converter %d\n", nid); + continue; + } + tmp_cvt[num_tmp_cvts] = nid; + num_tmp_cvts++; break; case AC_WID_PIN: caps = snd_hda_param_read(codec, nid, AC_PAR_PIN_CAP); if (!(caps & (AC_PINCAP_HDMI | AC_PINCAP_DP))) continue; + + config = snd_hda_codec_read(codec, nid, 0, + AC_VERB_GET_CONFIG_DEFAULT, 0); + if (get_defcfg_connect(config) == AC_JACK_PORT_NONE) + continue; + hdmi_add_pin(codec, nid); break; } } + for (i = 0; i < num_tmp_cvts; i++) + hdmi_add_cvt(codec, tmp_cvt[i]); + /* * G45/IbexPeak don't support EPSS: the unsolicited pin hot plug event * can be lost and presence sense verb will become inaccurate if the -- 2.7.4