WSL2-Linux-Kernel/sound/soc/tegra/tegra_wm8753.c

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4.8 KiB
C
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// SPDX-License-Identifier: GPL-2.0-only
/*
* tegra_wm8753.c - Tegra machine ASoC driver for boards using WM8753 codec.
*
* Author: Stephen Warren <swarren@nvidia.com>
* Copyright (C) 2010-2012 - NVIDIA, Inc.
*
* Based on code copyright/by:
*
* (c) 2009, 2010 Nvidia Graphics Pvt. Ltd.
*
* Copyright 2007 Wolfson Microelectronics PLC.
* Author: Graeme Gregory
* graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
*/
#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/wm8753.h"
#include "tegra_asoc_utils.h"
#define DRV_NAME "tegra-snd-wm8753"
struct tegra_wm8753 {
struct tegra_asoc_utils_data util_data;
};
static int tegra_wm8753_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_wm8753 *machine = snd_soc_card_get_drvdata(card);
int srate, mclk;
int err;
srate = params_rate(params);
switch (srate) {
case 11025:
case 22050:
case 44100:
case 88200:
mclk = 11289600;
break;
default:
mclk = 12288000;
break;
}
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, WM8753_MCLK, mclk,
SND_SOC_CLOCK_IN);
if (err < 0) {
dev_err(card->dev, "codec_dai clock not set\n");
return err;
}
return 0;
}
ASoC: tegra: constify snd_soc_ops structures Check for snd_soc_ops structures that are only stored in the ops field of a snd_soc_dai_link structure. This field is declared const, so snd_soc_ops structures that have this property can be declared as const also. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r disable optional_qualifier@ identifier i; position p; @@ static struct snd_soc_ops i@p = { ... }; @ok1@ identifier r.i; struct snd_soc_dai_link e; position p; @@ e.ops = &i@p; @ok2@ identifier r.i, e; position p; @@ struct snd_soc_dai_link e[] = { ..., { .ops = &i@p, }, ..., }; @bad@ position p != {r.p,ok1.p,ok2.p}; identifier r.i; struct snd_soc_ops e; @@ e@i@p @depends on !bad disable optional_qualifier@ identifier r.i; @@ static +const struct snd_soc_ops i = { ... }; // </smpl> The effect on the layout of the .o files is shown by the following output of the size command, first before then after the transformation: text data bss dec hex filename 3143 1888 384 5415 1527 sound/soc/tegra/tegra_alc5632.o 3191 1840 384 5415 1527 sound/soc/tegra/tegra_alc5632.o text data bss dec hex filename 3672 2176 768 6616 19d8 sound/soc/tegra/tegra_max98090.o 3720 2128 768 6616 19d8 sound/soc/tegra/tegra_max98090.o text data bss dec hex filename 2770 1856 384 5010 1392 sound/soc/tegra/tegra_rt5640.o 2818 1808 384 5010 1392 sound/soc/tegra/tegra_rt5640.o text data bss dec hex filename 4412 2176 768 7356 1cbc sound/soc/tegra/tegra_rt5677.o 4460 2128 768 7356 1cbc sound/soc/tegra/tegra_rt5677.o text data bss dec hex filename 2442 1536 0 3978 f8a sound/soc/tegra/tegra_sgtl5000.o 2490 1480 0 3970 f82 sound/soc/tegra/tegra_sgtl5000.o text data bss dec hex filename 2105 1536 0 3641 e39 sound/soc/tegra/tegra_wm8753.o 2153 1480 0 3633 e31 sound/soc/tegra/tegra_wm8753.o text data bss dec hex filename 3755 1888 768 6411 190b sound/soc/tegra/tegra_wm8903.o 3803 1840 768 6411 190b sound/soc/tegra/tegra_wm8903.o text data bss dec hex filename 2121 1536 0 3657 e49 sound/soc/tegra/trimslice.o 2169 1480 0 3649 e41 sound/soc/tegra/trimslice.o Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-10-15 17:55:51 +03:00
static const struct snd_soc_ops tegra_wm8753_ops = {
.hw_params = tegra_wm8753_hw_params,
};
static const struct snd_soc_dapm_widget tegra_wm8753_dapm_widgets[] = {
SND_SOC_DAPM_HP("Headphone Jack", NULL),
SND_SOC_DAPM_MIC("Mic Jack", NULL),
};
SND_SOC_DAILINK_DEFS(pcm,
DAILINK_COMP_ARRAY(COMP_EMPTY()),
DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm8753-hifi")));
static struct snd_soc_dai_link tegra_wm8753_dai = {
.name = "WM8753",
.stream_name = "WM8753 PCM",
.ops = &tegra_wm8753_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_wm8753 = {
.name = "tegra-wm8753",
.owner = THIS_MODULE,
.dai_link = &tegra_wm8753_dai,
.num_links = 1,
.dapm_widgets = tegra_wm8753_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(tegra_wm8753_dapm_widgets),
.fully_routed = true,
};
static int tegra_wm8753_driver_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
struct snd_soc_card *card = &snd_soc_tegra_wm8753;
struct tegra_wm8753 *machine;
int ret;
machine = devm_kzalloc(&pdev->dev, sizeof(struct tegra_wm8753),
GFP_KERNEL);
if (!machine)
return -ENOMEM;
card->dev = &pdev->dev;
snd_soc_card_set_drvdata(card, machine);
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_wm8753_dai.codecs->of_node = of_parse_phandle(np,
"nvidia,audio-codec", 0);
if (!tegra_wm8753_dai.codecs->of_node) {
dev_err(&pdev->dev,
"Property 'nvidia,audio-codec' missing or invalid\n");
ret = -EINVAL;
goto err;
}
tegra_wm8753_dai.cpus->of_node = of_parse_phandle(np,
"nvidia,i2s-controller", 0);
if (!tegra_wm8753_dai.cpus->of_node) {
dev_err(&pdev->dev,
"Property 'nvidia,i2s-controller' missing or invalid\n");
ret = -EINVAL;
goto err;
}
ret = tegra_asoc_utils_init(&machine->util_data, &pdev->dev);
if (ret)
goto err;
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:
return ret;
}
static int tegra_wm8753_driver_remove(struct platform_device *pdev)
{
struct snd_soc_card *card = platform_get_drvdata(pdev);
struct tegra_wm8753 *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_wm8753_of_match[] = {
{ .compatible = "nvidia,tegra-audio-wm8753", },
{},
};
static struct platform_driver tegra_wm8753_driver = {
.driver = {
.name = DRV_NAME,
.pm = &snd_soc_pm_ops,
.of_match_table = tegra_wm8753_of_match,
},
.probe = tegra_wm8753_driver_probe,
.remove = tegra_wm8753_driver_remove,
};
module_platform_driver(tegra_wm8753_driver);
MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>");
MODULE_DESCRIPTION("Tegra+WM8753 machine ASoC driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:" DRV_NAME);
MODULE_DEVICE_TABLE(of, tegra_wm8753_of_match);