Sorry, there are some unused parameters in haswell_set_power_state(). I'll remove them.
Thanks Mengdong
-----Original Message----- From: Lin, Mengdong Sent: Tuesday, May 07, 2013 11:55 PM To: alsa-devel@alsa-project.org; tiwai@suse.de Cc: Lin, Mengdong Subject: [PATCH] ALSA: hda - re-apply fixup when resuming haswell hdmi codec
From: Mengdong Lin mengdong.lin@intel.com
This patch is a supplement to a previous patch: "ALSA: hda - Add fixup for Haswell to enable all pin and convertor widgets".
Some Haswell BIOS will disable the 2nd and 3rd pin/covertor widgets when the HD-A controller changes state from D3 to D0. So when the controller resumes after a system or runtime suspend, these widgets are disabled and programming these widgets to D0 will cause H/W error and codec will not respond.
So this patch adds a "set_power_state" ops for Haswell codec. Before setting the codec to D0, this function will apply a BIOS-specific fixup to enable the 2nd & 3rd pins/cvts if need.
And since BIOS will also disable DP1.2, so this function will check and enable DP1.2 mode if need.
Signed-off-by: Mengdong Lin mengdong.lin@intel.com
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index adb5dce..9ecb55c 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -1842,7 +1842,7 @@ static void intel_haswell_enable_all_pins(struct hda_codec *codec, { unsigned int vendor_param;
- if (action != HDA_FIXUP_ACT_PRE_PROBE)
- if (action != HDA_FIXUP_ACT_PRE_PROBE && action !=
HDA_FIXUP_ACT_INIT) return; vendor_param = snd_hda_codec_read(codec, INTEL_VENDOR_NID, 0, INTEL_GET_VENDOR_VERB, 0); @@ -1855,7 +1855,8 @@ static void intel_haswell_enable_all_pins(struct hda_codec *codec, if (vendor_param == -1) return;
- snd_hda_codec_update_widgets(codec);
- if (action == HDA_FIXUP_ACT_PRE_PROBE)
snd_hda_codec_update_widgets(codec);}
@@ -1874,7 +1875,27 @@ static void intel_haswell_fixup_enable_dp12(struct hda_codec *codec) INTEL_SET_VENDOR_VERB, vendor_param); }
+static void haswell_set_power_state(struct hda_codec *codec, hda_nid_t fg,
unsigned int power_state)+{
unsigned int state;
unsigned int vendor_param;
if (AC_PWRST_D0 == power_state) {
snd_hda_apply_fixup(codec, HDA_FIXUP_ACT_INIT);intel_haswell_fixup_enable_dp12(codec);}
snd_hda_codec_read(codec, fg, 0,
AC_VERB_SET_POWER_STATE,power_state);snd_hda_codec_set_power_to_all(codec, fg, power_state);
return;
+}
/* available models for fixup */ enum { @@ -1922,6 +1943,10 @@ static int patch_generic_hdmi(struct hda_codec *codec) return -EINVAL; } codec->patch_ops = generic_hdmi_patch_ops;
if (codec->vendor_id == 0x80862807)
codec->patch_ops.set_power_state = haswell_set_power_state;generic_hdmi_init_per_pins(codec);
init_channel_allocations();
-- 1.7.10.4