[PATCH 1/5] ALSA: hda/ca0132 - Reset codec upon initialization.

From: Connor McAdams
Date: Tue Dec 08 2020 - 16:27:05 EST


Reset the codec upon initialization to clear out anything that may have
been setup on a previous boot into Windows, or in case of an improper
shutdown.

Signed-off-by: Connor McAdams <conmanx360@xxxxxxxxx>
---
sound/pci/hda/patch_ca0132.c | 21 ++++++++++++++++-----
1 file changed, 16 insertions(+), 5 deletions(-)

diff --git a/sound/pci/hda/patch_ca0132.c b/sound/pci/hda/patch_ca0132.c
index 4fbec4258f58..05945f021e74 100644
--- a/sound/pci/hda/patch_ca0132.c
+++ b/sound/pci/hda/patch_ca0132.c
@@ -8642,6 +8642,22 @@ static void ca0132_init_chip(struct hda_codec *codec)

mutex_init(&spec->chipio_mutex);

+ /*
+ * The Windows driver always does this upon startup, which seems to
+ * clear out any previous configuration. This should help issues where
+ * a boot into Windows prior to a boot into Linux breaks things. Also,
+ * Windows always sends the reset twice.
+ */
+ if (ca0132_use_alt_functions(spec)) {
+ chipio_set_control_flag(codec, CONTROL_FLAG_IDLE_ENABLE, 0);
+ chipio_write_no_mutex(codec, 0x18b0a4, 0x000000c2);
+
+ snd_hda_codec_write(codec, codec->core.afg, 0,
+ AC_VERB_SET_CODEC_RESET, 0);
+ snd_hda_codec_write(codec, codec->core.afg, 0,
+ AC_VERB_SET_CODEC_RESET, 0);
+ }
+
spec->cur_out_type = SPEAKER_OUT;
if (!ca0132_use_alt_functions(spec))
spec->cur_mic_type = DIGITAL_MIC;
@@ -9262,11 +9278,6 @@ static void ae5_register_set(struct hda_codec *codec)

if (ca0132_quirk(spec) == QUIRK_AE5)
ca0113_mmio_command_set(codec, 0x48, 0x07, 0x83);
-
- chipio_write(codec, 0x18b0a4, 0x000000c2);
-
- snd_hda_codec_write(codec, 0x01, 0, 0x7ff, 0x00);
- snd_hda_codec_write(codec, 0x01, 0, 0x7ff, 0x00);
}

/*
--
2.25.1