ASoC: tegra: Add platform driver for rt5677 audio codec
The driver supports NVIDIA Tegra Ryu board Sponsored: Google ChromeOS Signed-off-by: Anatol Pomozov <anatol.pomozov@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>hifive-unleashed-5.1
Anatol Pomozov
Mark Brown
parent
97bf6af1f9
commit
a37f1b8fdc
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@ -0,0 +1,67 @@
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NVIDIA Tegra audio complex, with RT5677 CODEC
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Required properties:
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- compatible : "nvidia,tegra-audio-rt5677"
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- clocks : Must contain an entry for each entry in clock-names.
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See ../clocks/clock-bindings.txt for details.
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- clock-names : Must include the following entries:
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- pll_a
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- pll_a_out0
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- mclk (The Tegra cdev1/extern1 clock, which feeds the CODEC's mclk)
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- nvidia,model : The user-visible name of this sound complex.
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- nvidia,audio-routing : A list of the connections between audio components.
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Each entry is a pair of strings, the first being the connection's sink,
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the second being the connection's source. Valid names for sources and
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sinks are the RT5677's pins (as documented in its binding), and the jacks
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on the board:
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* Headphone
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* Speaker
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* Headset Mic
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* Internal Mic 1
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* Internal Mic 2
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- nvidia,i2s-controller : The phandle of the Tegra I2S controller that's
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connected to the CODEC.
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- nvidia,audio-codec : The phandle of the RT5677 audio codec. This binding
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assumes that AIF1 on the CODEC is connected to Tegra.
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Optional properties:
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- nvidia,hp-det-gpios : The GPIO that detects headphones are plugged in
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- nvidia,hp-en-gpios : The GPIO that enables headphone amplifier
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- nvidia,mic-present-gpios: The GPIO that mic jack is plugged in
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- nvidia,dmic-clk-en-gpios : The GPIO that gates DMIC clock signal
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Example:
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sound {
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compatible = "nvidia,tegra-audio-rt5677-ryu",
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"nvidia,tegra-audio-rt5677";
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nvidia,model = "NVIDIA Tegra Ryu";
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nvidia,audio-routing =
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"Headphone", "LOUT2",
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"Headphone", "LOUT1",
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"Headset Mic", "MICBIAS1",
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"IN1P", "Headset Mic",
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"IN1N", "Headset Mic",
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"DMIC L1", "Internal Mic 1",
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"DMIC R1", "Internal Mic 1",
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"DMIC L2", "Internal Mic 2",
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"DMIC R2", "Internal Mic 2",
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"Speaker", "PDM1L",
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"Speaker", "PDM1R";
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nvidia,i2s-controller = <&tegra_i2s1>;
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nvidia,audio-codec = <&rt5677>;
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nvidia,hp-det-gpios = <&gpio TEGRA_GPIO(R, 7) GPIO_ACTIVE_HIGH>;
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nvidia,mic-present-gpios = <&gpio TEGRA_GPIO(O, 5) GPIO_ACTIVE_LOW>;
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nvidia,hp-en-gpios = <&rt5677 1 GPIO_ACTIVE_HIGH>;
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nvidia,dmic-clk-en-gpios = <&rt5677 2 GPIO_ACTIVE_HIGH>;
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clocks = <&tegra_car TEGRA124_CLK_PLL_A>,
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<&tegra_car TEGRA124_CLK_PLL_A_OUT0>,
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<&tegra_car TEGRA124_CLK_EXTERN1>;
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clock-names = "pll_a", "pll_a_out0", "mclk";
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};
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@ -128,3 +128,13 @@ config SND_SOC_TEGRA_MAX98090
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help
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Say Y or M here if you want to add support for SoC audio on Tegra
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boards using the MAX98090 codec, such as Venice2.
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config SND_SOC_TEGRA_RT5677
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tristate "SoC Audio support for Tegra boards using a RT5677 codec"
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depends on SND_SOC_TEGRA && I2C && GPIOLIB
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select SND_SOC_TEGRA20_I2S if ARCH_TEGRA_2x_SOC
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select SND_SOC_TEGRA30_I2S if ARCH_TEGRA_3x_SOC
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select SND_SOC_RT5677
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help
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Say Y or M here if you want to add support for SoC audio on Tegra
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boards using the RT5677 codec, such as Ryu.
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@ -19,6 +19,7 @@ obj-$(CONFIG_SND_SOC_TEGRA30_I2S) += snd-soc-tegra30-i2s.o
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# Tegra machine Support
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snd-soc-tegra-rt5640-objs := tegra_rt5640.o
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snd-soc-tegra-rt5677-objs := tegra_rt5677.o
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snd-soc-tegra-wm8753-objs := tegra_wm8753.o
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snd-soc-tegra-wm8903-objs := tegra_wm8903.o
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snd-soc-tegra-wm9712-objs := tegra_wm9712.o
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@ -27,6 +28,7 @@ snd-soc-tegra-alc5632-objs := tegra_alc5632.o
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snd-soc-tegra-max98090-objs := tegra_max98090.o
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obj-$(CONFIG_SND_SOC_TEGRA_RT5640) += snd-soc-tegra-rt5640.o
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obj-$(CONFIG_SND_SOC_TEGRA_RT5677) += snd-soc-tegra-rt5677.o
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obj-$(CONFIG_SND_SOC_TEGRA_WM8753) += snd-soc-tegra-wm8753.o
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obj-$(CONFIG_SND_SOC_TEGRA_WM8903) += snd-soc-tegra-wm8903.o
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obj-$(CONFIG_SND_SOC_TEGRA_WM9712) += snd-soc-tegra-wm9712.o
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@ -0,0 +1,347 @@
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/*
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* tegra_rt5677.c - Tegra machine ASoC driver for boards using RT5677 codec.
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*
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* Copyright (c) 2014, The Chromium OS Authors. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* Based on code copyright/by:
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*
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* Copyright (C) 2010-2012 - NVIDIA, Inc.
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* Copyright (C) 2011 The AC100 Kernel Team <ac100@lists.lauchpad.net>
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* (c) 2009, 2010 Nvidia Graphics Pvt. Ltd.
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* Copyright 2007 Wolfson Microelectronics PLC.
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*/
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/slab.h>
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#include <linux/gpio.h>
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#include <linux/of_gpio.h>
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#include <sound/core.h>
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#include <sound/jack.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include "../codecs/rt5677.h"
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#include "tegra_asoc_utils.h"
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#define DRV_NAME "tegra-snd-rt5677"
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struct tegra_rt5677 {
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struct tegra_asoc_utils_data util_data;
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int gpio_hp_det;
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int gpio_hp_en;
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int gpio_mic_present;
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int gpio_dmic_clk_en;
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};
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static int tegra_rt5677_asoc_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_dai *codec_dai = rtd->codec_dai;
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struct snd_soc_card *card = rtd->card;
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struct tegra_rt5677 *machine = snd_soc_card_get_drvdata(card);
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int srate, mclk, err;
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srate = params_rate(params);
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mclk = 256 * srate;
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err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk);
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if (err < 0) {
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dev_err(card->dev, "Can't configure clocks\n");
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return err;
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}
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err = snd_soc_dai_set_sysclk(codec_dai, RT5677_SCLK_S_MCLK, mclk,
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SND_SOC_CLOCK_IN);
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if (err < 0) {
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dev_err(card->dev, "codec_dai clock not set\n");
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return err;
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}
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return 0;
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}
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static int tegra_rt5677_event_hp(struct snd_soc_dapm_widget *w,
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struct snd_kcontrol *k, int event)
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{
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struct snd_soc_dapm_context *dapm = w->dapm;
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struct snd_soc_card *card = dapm->card;
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struct tegra_rt5677 *machine = snd_soc_card_get_drvdata(card);
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if (!gpio_is_valid(machine->gpio_hp_en))
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return 0;
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gpio_set_value_cansleep(machine->gpio_hp_en,
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SND_SOC_DAPM_EVENT_ON(event));
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return 0;
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}
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static struct snd_soc_ops tegra_rt5677_ops = {
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.hw_params = tegra_rt5677_asoc_hw_params,
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};
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static struct snd_soc_jack tegra_rt5677_hp_jack;
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static struct snd_soc_jack_pin tegra_rt5677_hp_jack_pins = {
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.pin = "Headphone",
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.mask = SND_JACK_HEADPHONE,
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};
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static struct snd_soc_jack_gpio tegra_rt5677_hp_jack_gpio = {
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.name = "Headphone detection",
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.report = SND_JACK_HEADPHONE,
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.debounce_time = 150,
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};
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static struct snd_soc_jack tegra_rt5677_mic_jack;
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static struct snd_soc_jack_pin tegra_rt5677_mic_jack_pins = {
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.pin = "Headset Mic",
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.mask = SND_JACK_MICROPHONE,
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};
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static struct snd_soc_jack_gpio tegra_rt5677_mic_jack_gpio = {
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.name = "Headset Mic detection",
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.report = SND_JACK_MICROPHONE,
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.debounce_time = 150,
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.invert = 1
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};
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static const struct snd_soc_dapm_widget tegra_rt5677_dapm_widgets[] = {
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SND_SOC_DAPM_SPK("Speaker", NULL),
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SND_SOC_DAPM_HP("Headphone", tegra_rt5677_event_hp),
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SND_SOC_DAPM_MIC("Headset Mic", NULL),
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SND_SOC_DAPM_MIC("Internal Mic 1", NULL),
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SND_SOC_DAPM_MIC("Internal Mic 2", NULL),
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};
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static const struct snd_kcontrol_new tegra_rt5677_controls[] = {
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SOC_DAPM_PIN_SWITCH("Speaker"),
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SOC_DAPM_PIN_SWITCH("Headphone"),
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SOC_DAPM_PIN_SWITCH("Headset Mic"),
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SOC_DAPM_PIN_SWITCH("Internal Mic 1"),
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SOC_DAPM_PIN_SWITCH("Internal Mic 2"),
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};
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static int tegra_rt5677_asoc_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct snd_soc_dai *codec_dai = rtd->codec_dai;
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struct snd_soc_codec *codec = codec_dai->codec;
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struct snd_soc_dapm_context *dapm = &codec->dapm;
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struct tegra_rt5677 *machine = snd_soc_card_get_drvdata(rtd->card);
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snd_soc_jack_new(codec, "Headphone Jack", SND_JACK_HEADPHONE,
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&tegra_rt5677_hp_jack);
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snd_soc_jack_add_pins(&tegra_rt5677_hp_jack, 1,
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&tegra_rt5677_hp_jack_pins);
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if (gpio_is_valid(machine->gpio_hp_det)) {
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tegra_rt5677_hp_jack_gpio.gpio = machine->gpio_hp_det;
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snd_soc_jack_add_gpios(&tegra_rt5677_hp_jack, 1,
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&tegra_rt5677_hp_jack_gpio);
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}
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snd_soc_jack_new(codec, "Mic Jack", SND_JACK_MICROPHONE,
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&tegra_rt5677_mic_jack);
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snd_soc_jack_add_pins(&tegra_rt5677_mic_jack, 1,
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&tegra_rt5677_mic_jack_pins);
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if (gpio_is_valid(machine->gpio_mic_present)) {
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tegra_rt5677_mic_jack_gpio.gpio = machine->gpio_mic_present;
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snd_soc_jack_add_gpios(&tegra_rt5677_mic_jack, 1,
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&tegra_rt5677_mic_jack_gpio);
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}
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snd_soc_dapm_force_enable_pin(dapm, "MICBIAS1");
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return 0;
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}
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static int tegra_rt5677_card_remove(struct snd_soc_card *card)
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{
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struct tegra_rt5677 *machine = snd_soc_card_get_drvdata(card);
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if (gpio_is_valid(machine->gpio_hp_det)) {
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snd_soc_jack_free_gpios(&tegra_rt5677_hp_jack, 1,
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&tegra_rt5677_hp_jack_gpio);
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}
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if (gpio_is_valid(machine->gpio_mic_present)) {
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snd_soc_jack_free_gpios(&tegra_rt5677_mic_jack, 1,
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&tegra_rt5677_mic_jack_gpio);
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}
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return 0;
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}
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static struct snd_soc_dai_link tegra_rt5677_dai = {
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.name = "RT5677",
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.stream_name = "RT5677 PCM",
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.codec_dai_name = "rt5677-aif1",
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.init = tegra_rt5677_asoc_init,
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.ops = &tegra_rt5677_ops,
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBS_CFS,
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};
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static struct snd_soc_card snd_soc_tegra_rt5677 = {
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.name = "tegra-rt5677",
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.owner = THIS_MODULE,
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.remove = tegra_rt5677_card_remove,
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.dai_link = &tegra_rt5677_dai,
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.num_links = 1,
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.controls = tegra_rt5677_controls,
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.num_controls = ARRAY_SIZE(tegra_rt5677_controls),
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.dapm_widgets = tegra_rt5677_dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(tegra_rt5677_dapm_widgets),
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.fully_routed = true,
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};
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static int tegra_rt5677_probe(struct platform_device *pdev)
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{
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struct device_node *np = pdev->dev.of_node;
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struct snd_soc_card *card = &snd_soc_tegra_rt5677;
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struct tegra_rt5677 *machine;
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int ret;
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machine = devm_kzalloc(&pdev->dev,
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sizeof(struct tegra_rt5677), GFP_KERNEL);
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if (!machine)
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return -ENOMEM;
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card->dev = &pdev->dev;
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platform_set_drvdata(pdev, card);
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snd_soc_card_set_drvdata(card, machine);
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machine->gpio_hp_det = of_get_named_gpio(np, "nvidia,hp-det-gpios", 0);
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if (machine->gpio_hp_det == -EPROBE_DEFER)
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return -EPROBE_DEFER;
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machine->gpio_mic_present = of_get_named_gpio(np,
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"nvidia,mic-present-gpios", 0);
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if (machine->gpio_mic_present == -EPROBE_DEFER)
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return -EPROBE_DEFER;
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machine->gpio_hp_en = of_get_named_gpio(np, "nvidia,hp-en-gpios", 0);
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if (machine->gpio_hp_en == -EPROBE_DEFER)
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return -EPROBE_DEFER;
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if (gpio_is_valid(machine->gpio_hp_en)) {
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ret = devm_gpio_request_one(&pdev->dev, machine->gpio_hp_en,
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GPIOF_OUT_INIT_LOW, "hp_en");
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if (ret) {
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dev_err(card->dev, "cannot get hp_en gpio\n");
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return ret;
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}
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}
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machine->gpio_dmic_clk_en = of_get_named_gpio(np,
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"nvidia,dmic-clk-en-gpios", 0);
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if (machine->gpio_dmic_clk_en == -EPROBE_DEFER)
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return -EPROBE_DEFER;
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if (gpio_is_valid(machine->gpio_dmic_clk_en)) {
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ret = devm_gpio_request_one(&pdev->dev,
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machine->gpio_dmic_clk_en,
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GPIOF_OUT_INIT_HIGH, "dmic_clk_en");
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if (ret) {
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dev_err(card->dev, "cannot get dmic_clk_en gpio\n");
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return ret;
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}
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}
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ret = snd_soc_of_parse_card_name(card, "nvidia,model");
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if (ret)
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goto err;
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ret = snd_soc_of_parse_audio_routing(card, "nvidia,audio-routing");
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if (ret)
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goto err;
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tegra_rt5677_dai.codec_of_node = of_parse_phandle(np,
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"nvidia,audio-codec", 0);
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if (!tegra_rt5677_dai.codec_of_node) {
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dev_err(&pdev->dev,
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"Property 'nvidia,audio-codec' missing or invalid\n");
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ret = -EINVAL;
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goto err;
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}
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tegra_rt5677_dai.cpu_of_node = of_parse_phandle(np,
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"nvidia,i2s-controller", 0);
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if (!tegra_rt5677_dai.cpu_of_node) {
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dev_err(&pdev->dev,
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"Property 'nvidia,i2s-controller' missing or invalid\n");
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ret = -EINVAL;
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goto err;
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}
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tegra_rt5677_dai.platform_of_node = tegra_rt5677_dai.cpu_of_node;
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ret = tegra_asoc_utils_init(&machine->util_data, &pdev->dev);
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if (ret)
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goto err;
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ret = snd_soc_register_card(card);
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if (ret) {
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dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
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||||
ret);
|
||||
goto err_fini_utils;
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
err_fini_utils:
|
||||
tegra_asoc_utils_fini(&machine->util_data);
|
||||
err:
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int tegra_rt5677_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct snd_soc_card *card = platform_get_drvdata(pdev);
|
||||
struct tegra_rt5677 *machine = snd_soc_card_get_drvdata(card);
|
||||
|
||||
snd_soc_unregister_card(card);
|
||||
|
||||
tegra_asoc_utils_fini(&machine->util_data);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct of_device_id tegra_rt5677_of_match[] = {
|
||||
{ .compatible = "nvidia,tegra-audio-rt5677", },
|
||||
{},
|
||||
};
|
||||
|
||||
static struct platform_driver tegra_rt5677_driver = {
|
||||
.driver = {
|
||||
.name = DRV_NAME,
|
||||
.owner = THIS_MODULE,
|
||||
.pm = &snd_soc_pm_ops,
|
||||
.of_match_table = tegra_rt5677_of_match,
|
||||
},
|
||||
.probe = tegra_rt5677_probe,
|
||||
.remove = tegra_rt5677_remove,
|
||||
};
|
||||
module_platform_driver(tegra_rt5677_driver);
|
||||
|
||||
MODULE_AUTHOR("Anatol Pomozov <anatol@google.com>");
|
||||
MODULE_DESCRIPTION("Tegra+RT5677 machine ASoC driver");
|
||||
MODULE_LICENSE("GPL v2");
|
||||
MODULE_ALIAS("platform:" DRV_NAME);
|
||||
MODULE_DEVICE_TABLE(of, tegra_rt5677_of_match);
|
||||
Loading…
Reference in New Issue