2b1c6b21b5
As usual these patches were extracted and rebased from the raspberry pi repo: https://github.com/raspberrypi/linux/tree/rpi-4.4.y Also adds support for Raspberry Pi Compute Module 3 (untested). Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
91 lines
2.9 KiB
Diff
91 lines
2.9 KiB
Diff
From d182e9b8453b663bb0c75f73e1791bf78f2d4bcc Mon Sep 17 00:00:00 2001
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From: Jan Grulich <jan@grulich.eu>
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Date: Mon, 24 Aug 2015 16:02:34 +0100
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Subject: [PATCH] tpa6130a2: Add headphone switch control
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Signed-off-by: Jan Grulich <jan@grulich.eu>
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---
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sound/soc/codecs/tpa6130a2.c | 29 ++++++++++++++++++++++++++---
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1 file changed, 26 insertions(+), 3 deletions(-)
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--- a/sound/soc/codecs/tpa6130a2.c
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+++ b/sound/soc/codecs/tpa6130a2.c
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@@ -4,6 +4,7 @@
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* Copyright (C) Nokia Corporation
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*
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* Author: Peter Ujfalusi <peter.ujfalusi@ti.com>
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+ * Modified: Jan Grulich <jan@grulich.eu>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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@@ -52,6 +53,8 @@ struct tpa6130a2_data {
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enum tpa_model id;
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};
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+static void tpa6130a2_channel_enable(u8 channel, int enable);
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+
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static int tpa6130a2_i2c_read(int reg)
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{
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struct tpa6130a2_data *data;
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@@ -189,7 +192,7 @@ exit:
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}
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static int tpa6130a2_get_volsw(struct snd_kcontrol *kcontrol,
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- struct snd_ctl_elem_value *ucontrol)
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+ struct snd_ctl_elem_value *ucontrol)
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{
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struct soc_mixer_control *mc =
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(struct soc_mixer_control *)kcontrol->private_value;
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@@ -218,7 +221,7 @@ static int tpa6130a2_get_volsw(struct sn
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}
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static int tpa6130a2_put_volsw(struct snd_kcontrol *kcontrol,
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- struct snd_ctl_elem_value *ucontrol)
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+ struct snd_ctl_elem_value *ucontrol)
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{
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struct soc_mixer_control *mc =
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(struct soc_mixer_control *)kcontrol->private_value;
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@@ -255,8 +258,22 @@ static int tpa6130a2_put_volsw(struct sn
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return 1;
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}
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+static int tpa6130a2_put_hp_sw(struct snd_kcontrol *kcontrol,
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+ struct snd_ctl_elem_value *ucontrol)
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+{
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+ int enable = ucontrol->value.integer.value[0];
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+ unsigned int state;
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+
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+ state = (tpa6130a2_read(TPA6130A2_REG_VOL_MUTE) & 0x80) == 0;
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+ if (state == enable)
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+ return 0; /* No change */
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+
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+ tpa6130a2_channel_enable(TPA6130A2_HP_EN_R | TPA6130A2_HP_EN_L, enable);
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+ return 1; /* Changed */
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+}
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+
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/*
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- * TPA6130 volume. From -59.5 to 4 dB with increasing step size when going
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+ * TPA6130 volume. From -59.5 to +4.0 dB with increasing step size when going
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* down in gain.
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*/
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static const DECLARE_TLV_DB_RANGE(tpa6130_tlv,
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@@ -277,6 +294,9 @@ static const struct snd_kcontrol_new tpa
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TPA6130A2_REG_VOL_MUTE, 0, 0x3f, 0,
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tpa6130a2_get_volsw, tpa6130a2_put_volsw,
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tpa6130_tlv),
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+ SOC_SINGLE_EXT("TPA6130A2 Headphone Playback Switch",
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+ TPA6130A2_REG_VOL_MUTE, 7, 1, 1,
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+ tpa6130a2_get_volsw, tpa6130a2_put_hp_sw),
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};
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static const DECLARE_TLV_DB_RANGE(tpa6140_tlv,
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@@ -290,6 +310,9 @@ static const struct snd_kcontrol_new tpa
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TPA6130A2_REG_VOL_MUTE, 1, 0x1f, 0,
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tpa6130a2_get_volsw, tpa6130a2_put_volsw,
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tpa6140_tlv),
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+ SOC_SINGLE_EXT("TPA6140A2 Headphone Playback Switch",
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+ TPA6130A2_REG_VOL_MUTE, 7, 1, 1,
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+ tpa6130a2_get_volsw, tpa6130a2_put_hp_sw),
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};
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/*
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