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ASoC: tegra: Add machine driver for WM8753 codec
One such machine is Whistler. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Stephen Warren
Mark Brown
parent
5452030c56
commit
d8259ca50b
@ -0,0 +1,54 @@
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NVIDIA Tegra audio complex
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Required properties:
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- compatible : "nvidia,tegra-audio-wm8753"
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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 WM8753's pins, and the jacks on the board:
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WM8753 pins:
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* LOUT1
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* LOUT2
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* ROUT1
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* ROUT2
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* MONO1
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* MONO2
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* OUT3
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* OUT4
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* LINE1
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* LINE2
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* RXP
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* RXN
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* ACIN
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* ACOP
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* MIC1N
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* MIC1
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* MIC2N
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* MIC2
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* Mic Bias
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Board connectors:
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* Headphone Jack
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* Mic Jack
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- nvidia,i2s-controller : The phandle of the Tegra I2S1 controller
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- nvidia,audio-codec : The phandle of the WM8753 audio codec
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Example:
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sound {
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compatible = "nvidia,tegra-audio-wm8753-whistler",
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"nvidia,tegra-audio-wm8753"
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nvidia,model = "tegra-wm8753-harmony";
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nvidia,audio-routing =
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"Headphone Jack", "LOUT1",
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"Headphone Jack", "ROUT1";
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nvidia,i2s-controller = <&i2s1>;
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nvidia,audio-codec = <&wm8753>;
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};
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@ -48,6 +48,16 @@ config SND_SOC_TEGRA30_I2S
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Tegra30 I2S interface. You will also need to select the individual
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machine drivers to support below.
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config SND_SOC_TEGRA_WM8753
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tristate "SoC Audio support for Tegra boards using a WM8753 codec"
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depends on SND_SOC_TEGRA && I2C
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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_WM8753
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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 WM8753 codec, such as Whistler.
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config MACH_HAS_SND_SOC_TEGRA_WM8903
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bool
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help
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@ -16,10 +16,12 @@ obj-$(CONFIG_SND_SOC_TEGRA30_AHUB) += snd-soc-tegra30-ahub.o
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obj-$(CONFIG_SND_SOC_TEGRA30_I2S) += snd-soc-tegra30-i2s.o
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# Tegra machine Support
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snd-soc-tegra-wm8753-objs := tegra_wm8753.o
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snd-soc-tegra-wm8903-objs := tegra_wm8903.o
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snd-soc-tegra-trimslice-objs := trimslice.o
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snd-soc-tegra-alc5632-objs := tegra_alc5632.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-$(CONFIG_SND_SOC_TEGRA_TRIMSLICE) += snd-soc-tegra-trimslice.o
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obj-$(CONFIG_SND_SOC_TEGRA_ALC5632) += snd-soc-tegra-alc5632.o
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224
sound/soc/tegra/tegra_wm8753.c
Normal file
224
sound/soc/tegra/tegra_wm8753.c
Normal file
@ -0,0 +1,224 @@
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/*
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* tegra_wm8753.c - Tegra machine ASoC driver for boards using WM8753 codec.
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*
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* Author: Stephen Warren <swarren@nvidia.com>
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* Copyright (C) 2010-2012 - NVIDIA, Inc.
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*
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* Based on code copyright/by:
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*
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* (c) 2009, 2010 Nvidia Graphics Pvt. Ltd.
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*
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* Copyright 2007 Wolfson Microelectronics PLC.
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* Author: Graeme Gregory
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* graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
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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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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for 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, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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*/
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#include <asm/mach-types.h>
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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/wm8753.h"
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#include "tegra_asoc_utils.h"
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#define DRV_NAME "tegra-snd-wm8753"
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struct tegra_wm8753 {
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struct tegra_asoc_utils_data util_data;
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};
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static int tegra_wm8753_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_codec *codec = rtd->codec;
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struct snd_soc_card *card = codec->card;
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struct tegra_wm8753 *machine = snd_soc_card_get_drvdata(card);
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int srate, mclk;
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int err;
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srate = params_rate(params);
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switch (srate) {
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case 11025:
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case 22050:
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case 44100:
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case 88200:
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mclk = 11289600;
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break;
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default:
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mclk = 12288000;
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break;
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}
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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, WM8753_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 struct snd_soc_ops tegra_wm8753_ops = {
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.hw_params = tegra_wm8753_hw_params,
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};
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static const struct snd_soc_dapm_widget tegra_wm8753_dapm_widgets[] = {
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SND_SOC_DAPM_HP("Headphone Jack", NULL),
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SND_SOC_DAPM_MIC("Mic Jack", NULL),
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};
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static struct snd_soc_dai_link tegra_wm8753_dai = {
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.name = "WM8753",
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.stream_name = "WM8753 PCM",
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.codec_dai_name = "wm8753-hifi",
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.ops = &tegra_wm8753_ops,
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.dai_fmt = SND_SOC_DAIFMT_I2S |
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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_wm8753 = {
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.name = "tegra-wm8753",
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.owner = THIS_MODULE,
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.dai_link = &tegra_wm8753_dai,
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.num_links = 1,
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.dapm_widgets = tegra_wm8753_dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(tegra_wm8753_dapm_widgets),
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.fully_routed = true,
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};
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static __devinit int tegra_wm8753_driver_probe(struct platform_device *pdev)
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{
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struct snd_soc_card *card = &snd_soc_tegra_wm8753;
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struct tegra_wm8753 *machine;
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int ret;
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machine = devm_kzalloc(&pdev->dev, sizeof(struct tegra_wm8753),
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GFP_KERNEL);
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if (!machine) {
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dev_err(&pdev->dev, "Can't allocate tegra_wm8753 struct\n");
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ret = -ENOMEM;
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goto err;
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}
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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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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_wm8753_dai.codec_of_node = of_parse_phandle(
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pdev->dev.of_node, "nvidia,audio-codec", 0);
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if (!tegra_wm8753_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_wm8753_dai.cpu_dai_of_node = of_parse_phandle(
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pdev->dev.of_node, "nvidia,i2s-controller", 0);
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if (!tegra_wm8753_dai.cpu_dai_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_wm8753_dai.platform_of_node =
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tegra_wm8753_dai.cpu_dai_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);
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goto err_fini_utils;
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}
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return 0;
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err_fini_utils:
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tegra_asoc_utils_fini(&machine->util_data);
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err:
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return ret;
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}
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static int __devexit tegra_wm8753_driver_remove(struct platform_device *pdev)
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{
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struct snd_soc_card *card = platform_get_drvdata(pdev);
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struct tegra_wm8753 *machine = snd_soc_card_get_drvdata(card);
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snd_soc_unregister_card(card);
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tegra_asoc_utils_fini(&machine->util_data);
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return 0;
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}
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static const struct of_device_id tegra_wm8753_of_match[] __devinitconst = {
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{ .compatible = "nvidia,tegra-audio-wm8753", },
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{},
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};
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static struct platform_driver tegra_wm8753_driver = {
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.driver = {
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.name = DRV_NAME,
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.owner = THIS_MODULE,
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.pm = &snd_soc_pm_ops,
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.of_match_table = tegra_wm8753_of_match,
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},
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.probe = tegra_wm8753_driver_probe,
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.remove = __devexit_p(tegra_wm8753_driver_remove),
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};
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module_platform_driver(tegra_wm8753_driver);
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MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>");
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MODULE_DESCRIPTION("Tegra+WM8753 machine ASoC driver");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("platform:" DRV_NAME);
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MODULE_DEVICE_TABLE(of, tegra_wm8753_of_match);
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