lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
a99d8080aa
linux-kernel-test/sound/soc/tegra/tegra_rt5677.c
Kuninori Morimoto 1dd2e91b08
ASoC: tegra: tegra_rt5677: consider CPU-Platform possibility 
commit d035d13b22 ("ASoC: tegra: tegra_rt5677: don't select unnecessary
Platform")

Current ALSA SoC avoid to add duplicate component to rtd,
and this driver was selecting CPU component as Platform component.
Thus, above patch removed Platform settings from this driver,
because it assumed these are same component.

But, some CPU driver is using generic DMAEngine, in such case, both
CPU component and Platform component will have same of_node/name.
In other words, there are some components which are different but
have same of_node/name.

In such case, Card driver definitely need to select Platform even
though it is same as CPU.
It is depends on CPU driver, but is difficult to know it from Card driver.
This patch reverts above patch.

Fixes: commit d035d13b22 ("ASoC: tegra: tegra_rt5677: don't select unnecessary Platform")
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-28 15:17:56 +01:00

330 lines
8.8 KiB
C
Raw Blame History

// SPDX-License-Identifier: GPL-2.0-only
/*
* tegra_rt5677.c - Tegra machine ASoC driver for boards using RT5677 codec.
*
* Copyright (c) 2014, The Chromium OS Authors. All rights reserved.
*
* Based on code copyright/by:
*
* Copyright (C) 2010-2012 - NVIDIA, Inc.
* Copyright (C) 2011 The AC100 Kernel Team <ac100@lists.lauchpad.net>
* (c) 2009, 2010 Nvidia Graphics Pvt. Ltd.
* Copyright 2007 Wolfson Microelectronics PLC.
*/
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/gpio.h>
#include <linux/of_gpio.h>
#include <sound/core.h>
#include <sound/jack.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include "../codecs/rt5677.h"
#include "tegra_asoc_utils.h"
#define DRV_NAME "tegra-snd-rt5677"
struct tegra_rt5677 {
struct tegra_asoc_utils_data util_data;
int gpio_hp_det;
int gpio_hp_en;
int gpio_mic_present;
int gpio_dmic_clk_en;
};
static int tegra_rt5677_asoc_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *codec_dai = rtd->codec_dai;
struct snd_soc_card *card = rtd->card;
struct tegra_rt5677 *machine = snd_soc_card_get_drvdata(card);
int srate, mclk, err;
srate = params_rate(params);
mclk = 256 * srate;
err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk);
if (err < 0) {
dev_err(card->dev, "Can't configure clocks\n");
return err;
}
err = snd_soc_dai_set_sysclk(codec_dai, RT5677_SCLK_S_MCLK, mclk,
SND_SOC_CLOCK_IN);
if (err < 0) {
dev_err(card->dev, "codec_dai clock not set\n");
return err;
}
return 0;
}
static int tegra_rt5677_event_hp(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *k, int event)
{
struct snd_soc_dapm_context *dapm = w->dapm;
struct snd_soc_card *card = dapm->card;
struct tegra_rt5677 *machine = snd_soc_card_get_drvdata(card);
if (!gpio_is_valid(machine->gpio_hp_en))
return 0;
gpio_set_value_cansleep(machine->gpio_hp_en,
SND_SOC_DAPM_EVENT_ON(event));
return 0;
}
static const struct snd_soc_ops tegra_rt5677_ops = {
.hw_params = tegra_rt5677_asoc_hw_params,
};
static struct snd_soc_jack tegra_rt5677_hp_jack;
static struct snd_soc_jack_pin tegra_rt5677_hp_jack_pins = {
.pin = "Headphone",
.mask = SND_JACK_HEADPHONE,
};
static struct snd_soc_jack_gpio tegra_rt5677_hp_jack_gpio = {
.name = "Headphone detection",
.report = SND_JACK_HEADPHONE,
.debounce_time = 150,
};
static struct snd_soc_jack tegra_rt5677_mic_jack;
static struct snd_soc_jack_pin tegra_rt5677_mic_jack_pins = {
.pin = "Headset Mic",
.mask = SND_JACK_MICROPHONE,
};
static struct snd_soc_jack_gpio tegra_rt5677_mic_jack_gpio = {
.name = "Headset Mic detection",
.report = SND_JACK_MICROPHONE,
.debounce_time = 150,
.invert = 1
};
static const struct snd_soc_dapm_widget tegra_rt5677_dapm_widgets[] = {
SND_SOC_DAPM_SPK("Speaker", NULL),
SND_SOC_DAPM_HP("Headphone", tegra_rt5677_event_hp),
SND_SOC_DAPM_MIC("Headset Mic", NULL),
SND_SOC_DAPM_MIC("Internal Mic 1", NULL),
SND_SOC_DAPM_MIC("Internal Mic 2", NULL),
};
static const struct snd_kcontrol_new tegra_rt5677_controls[] = {
SOC_DAPM_PIN_SWITCH("Speaker"),
SOC_DAPM_PIN_SWITCH("Headphone"),
SOC_DAPM_PIN_SWITCH("Headset Mic"),
SOC_DAPM_PIN_SWITCH("Internal Mic 1"),
SOC_DAPM_PIN_SWITCH("Internal Mic 2"),
};
static int tegra_rt5677_asoc_init(struct snd_soc_pcm_runtime *rtd)
{
struct tegra_rt5677 *machine = snd_soc_card_get_drvdata(rtd->card);
snd_soc_card_jack_new(rtd->card, "Headphone Jack", SND_JACK_HEADPHONE,
&tegra_rt5677_hp_jack,
&tegra_rt5677_hp_jack_pins, 1);
if (gpio_is_valid(machine->gpio_hp_det)) {
tegra_rt5677_hp_jack_gpio.gpio = machine->gpio_hp_det;
snd_soc_jack_add_gpios(&tegra_rt5677_hp_jack, 1,
&tegra_rt5677_hp_jack_gpio);
}
snd_soc_card_jack_new(rtd->card, "Mic Jack", SND_JACK_MICROPHONE,
&tegra_rt5677_mic_jack,
&tegra_rt5677_mic_jack_pins, 1);
if (gpio_is_valid(machine->gpio_mic_present)) {
tegra_rt5677_mic_jack_gpio.gpio = machine->gpio_mic_present;
snd_soc_jack_add_gpios(&tegra_rt5677_mic_jack, 1,
&tegra_rt5677_mic_jack_gpio);
}
snd_soc_dapm_force_enable_pin(&rtd->card->dapm, "MICBIAS1");
return 0;
}
SND_SOC_DAILINK_DEFS(pcm,
DAILINK_COMP_ARRAY(COMP_EMPTY()),
DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "rt5677-aif1")),
DAILINK_COMP_ARRAY(COMP_EMPTY()));
static struct snd_soc_dai_link tegra_rt5677_dai = {
.name = "RT5677",
.stream_name = "RT5677 PCM",
.init = tegra_rt5677_asoc_init,
.ops = &tegra_rt5677_ops,
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBS_CFS,
SND_SOC_DAILINK_REG(pcm),
};
static struct snd_soc_card snd_soc_tegra_rt5677 = {
.name = "tegra-rt5677",
.owner = THIS_MODULE,
.dai_link = &tegra_rt5677_dai,
.num_links = 1,
.controls = tegra_rt5677_controls,
.num_controls = ARRAY_SIZE(tegra_rt5677_controls),
.dapm_widgets = tegra_rt5677_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(tegra_rt5677_dapm_widgets),
.fully_routed = true,
};
static int tegra_rt5677_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
struct snd_soc_card *card = &snd_soc_tegra_rt5677;
struct tegra_rt5677 *machine;
int ret;
machine = devm_kzalloc(&pdev->dev,
sizeof(struct tegra_rt5677), GFP_KERNEL);
if (!machine)
return -ENOMEM;
card->dev = &pdev->dev;
snd_soc_card_set_drvdata(card, machine);
machine->gpio_hp_det = of_get_named_gpio(np, "nvidia,hp-det-gpios", 0);
if (machine->gpio_hp_det == -EPROBE_DEFER)
return -EPROBE_DEFER;
machine->gpio_mic_present = of_get_named_gpio(np,
"nvidia,mic-present-gpios", 0);
if (machine->gpio_mic_present == -EPROBE_DEFER)
return -EPROBE_DEFER;
machine->gpio_hp_en = of_get_named_gpio(np, "nvidia,hp-en-gpios", 0);
if (machine->gpio_hp_en == -EPROBE_DEFER)
return -EPROBE_DEFER;
if (gpio_is_valid(machine->gpio_hp_en)) {
ret = devm_gpio_request_one(&pdev->dev, machine->gpio_hp_en,
GPIOF_OUT_INIT_LOW, "hp_en");
if (ret) {
dev_err(card->dev, "cannot get hp_en gpio\n");
return ret;
}
}
machine->gpio_dmic_clk_en = of_get_named_gpio(np,
"nvidia,dmic-clk-en-gpios", 0);
if (machine->gpio_dmic_clk_en == -EPROBE_DEFER)
return -EPROBE_DEFER;
if (gpio_is_valid(machine->gpio_dmic_clk_en)) {
ret = devm_gpio_request_one(&pdev->dev,
machine->gpio_dmic_clk_en,
GPIOF_OUT_INIT_HIGH, "dmic_clk_en");
if (ret) {
dev_err(card->dev, "cannot get dmic_clk_en gpio\n");
return ret;
}
}
ret = snd_soc_of_parse_card_name(card, "nvidia,model");
if (ret)
goto err;
ret = snd_soc_of_parse_audio_routing(card, "nvidia,audio-routing");
if (ret)
goto err;
tegra_rt5677_dai.codecs->of_node = of_parse_phandle(np,
"nvidia,audio-codec", 0);
if (!tegra_rt5677_dai.codecs->of_node) {
dev_err(&pdev->dev,
"Property 'nvidia,audio-codec' missing or invalid\n");
ret = -EINVAL;
goto err;
}
tegra_rt5677_dai.cpus->of_node = of_parse_phandle(np,
"nvidia,i2s-controller", 0);
if (!tegra_rt5677_dai.cpus->of_node) {
dev_err(&pdev->dev,
"Property 'nvidia,i2s-controller' missing or invalid\n");
ret = -EINVAL;
goto err_put_codec_of_node;
}
tegra_rt5677_dai.platforms->of_node = tegra_rt5677_dai.cpus->of_node;
ret = tegra_asoc_utils_init(&machine->util_data, &pdev->dev);
if (ret)
goto err_put_cpu_of_node;
ret = snd_soc_register_card(card);
if (ret) {
dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
ret);
goto err_fini_utils;
}
return 0;
err_fini_utils:
tegra_asoc_utils_fini(&machine->util_data);
err_put_cpu_of_node:
of_node_put(tegra_rt5677_dai.cpus->of_node);
tegra_rt5677_dai.cpus->of_node = NULL;
tegra_rt5677_dai.platforms->of_node = NULL;
err_put_codec_of_node:
of_node_put(tegra_rt5677_dai.codecs->of_node);
tegra_rt5677_dai.codecs->of_node = NULL;
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);
tegra_rt5677_dai.platforms->of_node = NULL;
of_node_put(tegra_rt5677_dai.codecs->of_node);
tegra_rt5677_dai.codecs->of_node = NULL;
of_node_put(tegra_rt5677_dai.cpus->of_node);
tegra_rt5677_dai.cpus->of_node = NULL;
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,
.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);
Reference in New Issue View Git Blame Copy Permalink