diff options
| author | David Henningsson <david.henningsson@canonical.com> | 2012-11-07 09:22:33 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2012-11-07 09:35:02 +0100 |
| commit | c9adeefda0e29bed628e40e7f9da1f84243937e7 (patch) | |
| tree | 7b6b505d430a49c1f7ec0955305eeeb6e34d2435 /sound/pci | |
| parent | 4492363251235c4499a2d073c5f09121ea23d39d (diff) | |
| download | linux-c9adeefda0e29bed628e40e7f9da1f84243937e7.tar.bz2 | |
ALSA: hda - Keep power link on for PantherPoint HDMI
On some of the PantherPoint HDMI machines we currently enable, we're seeing
trouble with unsol events, i e detecting monitor presence, especially when
on battery and after suspend/resume.
BugLink: https://bugs.launchpad.net/bugs/1075882
Tested-by: Cyrus Lien <cyrus.lien@canonical.com>
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci')
| -rw-r--r-- | sound/pci/hda/patch_hdmi.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index 39ca1005995d..3824699142ee 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -1288,13 +1288,17 @@ static int hdmi_parse_codec(struct hda_codec *codec) } } +#ifdef CONFIG_PM + /* We're seeing some problems with unsolicited hot plug events on + * PantherPoint after S3, if this is not enabled */ + if (codec->vendor_id == 0x80862806) + codec->bus->power_keep_link_on = 1; /* * G45/IbexPeak don't support EPSS: the unsolicited pin hot plug event * can be lost and presence sense verb will become inaccurate if the * HDA link is powered off at hot plug or hw initialization time. */ -#ifdef CONFIG_PM - if (!(snd_hda_param_read(codec, codec->afg, AC_PAR_POWER_STATE) & + else if (!(snd_hda_param_read(codec, codec->afg, AC_PAR_POWER_STATE) & AC_PWRST_EPSS)) codec->bus->power_keep_link_on = 1; #endif |