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-rw-r--r--target/linux/brcm2708/patches-4.1/0169-tpa6130a2-Add-headphone-switch-control.patch91
1 files changed, 91 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.1/0169-tpa6130a2-Add-headphone-switch-control.patch b/target/linux/brcm2708/patches-4.1/0169-tpa6130a2-Add-headphone-switch-control.patch
new file mode 100644
index 0000000000..d6840a90e1
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.1/0169-tpa6130a2-Add-headphone-switch-control.patch
@@ -0,0 +1,91 @@
+From aa7324f2f5f19ea3b2865897041f5a2838a92ac7 Mon Sep 17 00:00:00 2001
+From: Jan Grulich <jan@grulich.eu>
+Date: Mon, 24 Aug 2015 16:02:34 +0100
+Subject: [PATCH 169/171] tpa6130a2: Add headphone switch control
+
+Signed-off-by: Jan Grulich <jan@grulich.eu>
+---
+ sound/soc/codecs/tpa6130a2.c | 29 ++++++++++++++++++++++++++---
+ 1 file changed, 26 insertions(+), 3 deletions(-)
+
+--- a/sound/soc/codecs/tpa6130a2.c
++++ b/sound/soc/codecs/tpa6130a2.c
+@@ -4,6 +4,7 @@
+ * Copyright (C) Nokia Corporation
+ *
+ * Author: Peter Ujfalusi <peter.ujfalusi@ti.com>
++ * Modified: Jan Grulich <jan@grulich.eu>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+@@ -52,6 +53,8 @@ struct tpa6130a2_data {
+ enum tpa_model id;
+ };
+
++static void tpa6130a2_channel_enable(u8 channel, int enable);
++
+ static int tpa6130a2_i2c_read(int reg)
+ {
+ struct tpa6130a2_data *data;
+@@ -189,7 +192,7 @@ exit:
+ }
+
+ static int tpa6130a2_get_volsw(struct snd_kcontrol *kcontrol,
+- struct snd_ctl_elem_value *ucontrol)
++ struct snd_ctl_elem_value *ucontrol)
+ {
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
+@@ -218,7 +221,7 @@ static int tpa6130a2_get_volsw(struct sn
+ }
+
+ static int tpa6130a2_put_volsw(struct snd_kcontrol *kcontrol,
+- struct snd_ctl_elem_value *ucontrol)
++ struct snd_ctl_elem_value *ucontrol)
+ {
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
+@@ -255,8 +258,22 @@ static int tpa6130a2_put_volsw(struct sn
+ return 1;
+ }
+
++static int tpa6130a2_put_hp_sw(struct snd_kcontrol *kcontrol,
++ struct snd_ctl_elem_value *ucontrol)
++{
++ int enable = ucontrol->value.integer.value[0];
++ unsigned int state;
++
++ state = (tpa6130a2_read(TPA6130A2_REG_VOL_MUTE) & 0x80) == 0;
++ if (state == enable)
++ return 0; /* No change */
++
++ tpa6130a2_channel_enable(TPA6130A2_HP_EN_R | TPA6130A2_HP_EN_L, enable);
++ return 1; /* Changed */
++}
++
+ /*
+- * TPA6130 volume. From -59.5 to 4 dB with increasing step size when going
++ * TPA6130 volume. From -59.5 to +4.0 dB with increasing step size when going
+ * down in gain.
+ */
+ static const unsigned int tpa6130_tlv[] = {
+@@ -278,6 +295,9 @@ static const struct snd_kcontrol_new tpa
+ TPA6130A2_REG_VOL_MUTE, 0, 0x3f, 0,
+ tpa6130a2_get_volsw, tpa6130a2_put_volsw,
+ tpa6130_tlv),
++ SOC_SINGLE_EXT("TPA6130A2 Headphone Playback Switch",
++ TPA6130A2_REG_VOL_MUTE, 7, 1, 1,
++ tpa6130a2_get_volsw, tpa6130a2_put_hp_sw),
+ };
+
+ static const unsigned int tpa6140_tlv[] = {
+@@ -292,6 +312,9 @@ static const struct snd_kcontrol_new tpa
+ TPA6130A2_REG_VOL_MUTE, 1, 0x1f, 0,
+ tpa6130a2_get_volsw, tpa6130a2_put_volsw,
+ tpa6140_tlv),
++ SOC_SINGLE_EXT("TPA6140A2 Headphone Playback Switch",
++ TPA6130A2_REG_VOL_MUTE, 7, 1, 1,
++ tpa6130a2_get_volsw, tpa6130a2_put_hp_sw),
+ };
+
+ /*