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Subject[PATCH v2 07/27] ALSA: hda/cs8409: Disable unsolicited responses during suspend
Date
From: Stefan Binding <sbinding@opensource.cirrus.com>

Ensure unsolicited responses cannot occur whilst the sub codecs are
being disabled.

Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com>
Signed-off-by: Vitaly Rodionov <vitalyr@opensource.cirrus.com>

Changes in v2:
- No changes

---
sound/pci/hda/patch_cs8409.c | 26 ++++++++++++++------------
1 file changed, 14 insertions(+), 12 deletions(-)

diff --git a/sound/pci/hda/patch_cs8409.c b/sound/pci/hda/patch_cs8409.c
index 1745f8b188c6..4906d2913603 100644
--- a/sound/pci/hda/patch_cs8409.c
+++ b/sound/pci/hda/patch_cs8409.c
@@ -563,12 +563,26 @@ static void cs8409_jack_unsol_event(struct hda_codec *codec, unsigned int res)
}
}

+/* Enable/Disable Unsolicited Response for gpio(s) 3,4 */
+static void cs8409_enable_ur(struct hda_codec *codec, int flag)
+{
+ /* GPIO4 INT# and GPIO3 WAKE# */
+ snd_hda_codec_write(codec, CS8409_PIN_AFG, 0, AC_VERB_SET_GPIO_UNSOLICITED_RSP_MASK,
+ flag ? CS8409_CS42L42_INT : 0);
+
+ snd_hda_codec_write(codec, CS8409_PIN_AFG, 0, AC_VERB_SET_UNSOLICITED_ENABLE,
+ flag ? AC_UNSOL_ENABLED : 0);
+
+}
+
#ifdef CONFIG_PM
/* Manage PDREF, when transition to D3hot */
static int cs8409_suspend(struct hda_codec *codec)
{
struct cs8409_spec *spec = codec->spec;

+ cs8409_enable_ur(codec, 0);
+
mutex_lock(&spec->cs8409_i2c_mux);
/* Power down CS42L42 ASP/EQ/MIX/HP */
cs8409_i2c_write(codec, CS42L42_I2C_ADDR, 0x1101, 0xfe, 1);
@@ -582,18 +596,6 @@ static int cs8409_suspend(struct hda_codec *codec)
}
#endif

-/* Enable/Disable Unsolicited Response for gpio(s) 3,4 */
-static void cs8409_enable_ur(struct hda_codec *codec, int flag)
-{
- /* GPIO4 INT# and GPIO3 WAKE# */
- snd_hda_codec_write(codec, CS8409_PIN_AFG, 0, AC_VERB_SET_GPIO_UNSOLICITED_RSP_MASK,
- flag ? CS8409_CS42L42_INT : 0);
-
- snd_hda_codec_write(codec, CS8409_PIN_AFG, 0, AC_VERB_SET_UNSOLICITED_ENABLE,
- flag ? AC_UNSOL_ENABLED : 0);
-
-}
-
/* Vendor specific HW configuration
* PLL, ASP, I2C, SPI, GPIOs, DMIC etc...
*/
--
2.25.1
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