linux-stable/sound/soc/rockchip/rockchip_max98090.c
Julia Lawall 705e9994a4 ASoC: rockchip: 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
   5027    2488     416    7931    1efb sound/soc/rockchip/rk3399_gru_sound.o
   5219    2312     416    7947    1f0b sound/soc/rockchip/rk3399_gru_sound.o

   text    data     bss     dec     hex filename
   3499    1648     384    5531    159b sound/soc/rockchip/rockchip_max98090.o
   3563    1584     384    5531    159b sound/soc/rockchip/rockchip_max98090.o

   text    data     bss     dec     hex filename
   3455    1536     384    5375    14ff sound/soc/rockchip/rockchip_rt5645.o
   3519    1480     384    5383    1507 sound/soc/rockchip/rockchip_rt5645.o

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-10-24 18:33:17 +01:00

251 lines
6.2 KiB
C

/*
* Rockchip machine ASoC driver for boards using a MAX90809 CODEC.
*
* Copyright (c) 2014, ROCKCHIP CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#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 "rockchip_i2s.h"
#include "../codecs/ts3a227e.h"
#define DRV_NAME "rockchip-snd-max98090"
static struct snd_soc_jack headset_jack;
/* Headset jack detection DAPM pins */
static struct snd_soc_jack_pin headset_jack_pins[] = {
{
.pin = "Headphone",
.mask = SND_JACK_HEADPHONE,
},
{
.pin = "Headset Mic",
.mask = SND_JACK_MICROPHONE,
},
};
static const struct snd_soc_dapm_widget rk_dapm_widgets[] = {
SND_SOC_DAPM_HP("Headphone", NULL),
SND_SOC_DAPM_MIC("Headset Mic", NULL),
SND_SOC_DAPM_MIC("Int Mic", NULL),
SND_SOC_DAPM_SPK("Speaker", NULL),
};
static const struct snd_soc_dapm_route rk_audio_map[] = {
{"IN34", NULL, "Headset Mic"},
{"IN34", NULL, "MICBIAS"},
{"Headset Mic", NULL, "MICBIAS"},
{"DMICL", NULL, "Int Mic"},
{"Headphone", NULL, "HPL"},
{"Headphone", NULL, "HPR"},
{"Speaker", NULL, "SPKL"},
{"Speaker", NULL, "SPKR"},
};
static const struct snd_kcontrol_new rk_mc_controls[] = {
SOC_DAPM_PIN_SWITCH("Headphone"),
SOC_DAPM_PIN_SWITCH("Headset Mic"),
SOC_DAPM_PIN_SWITCH("Int Mic"),
SOC_DAPM_PIN_SWITCH("Speaker"),
};
static int rk_aif1_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
int ret = 0;
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
struct snd_soc_dai *codec_dai = rtd->codec_dai;
int mclk;
switch (params_rate(params)) {
case 8000:
case 16000:
case 24000:
case 32000:
case 48000:
case 64000:
case 96000:
mclk = 12288000;
break;
case 11025:
case 22050:
case 44100:
case 88200:
mclk = 11289600;
break;
default:
return -EINVAL;
}
ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,
SND_SOC_CLOCK_OUT);
if (ret < 0) {
dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);
return ret;
}
ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
SND_SOC_CLOCK_IN);
if (ret < 0) {
dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);
return ret;
}
return ret;
}
static const struct snd_soc_ops rk_aif1_ops = {
.hw_params = rk_aif1_hw_params,
};
static struct snd_soc_dai_link rk_dailink = {
.name = "max98090",
.stream_name = "Audio",
.codec_dai_name = "HiFi",
.ops = &rk_aif1_ops,
/* set max98090 as slave */
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBS_CFS,
};
static int rk_98090_headset_init(struct snd_soc_component *component);
static struct snd_soc_aux_dev rk_98090_headset_dev = {
.name = "Headset Chip",
.init = rk_98090_headset_init,
};
static struct snd_soc_card snd_soc_card_rk = {
.name = "ROCKCHIP-I2S",
.owner = THIS_MODULE,
.dai_link = &rk_dailink,
.num_links = 1,
.aux_dev = &rk_98090_headset_dev,
.num_aux_devs = 1,
.dapm_widgets = rk_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(rk_dapm_widgets),
.dapm_routes = rk_audio_map,
.num_dapm_routes = ARRAY_SIZE(rk_audio_map),
.controls = rk_mc_controls,
.num_controls = ARRAY_SIZE(rk_mc_controls),
};
static int rk_98090_headset_init(struct snd_soc_component *component)
{
int ret;
/* Enable Headset and 4 Buttons Jack detection */
ret = snd_soc_card_jack_new(&snd_soc_card_rk, "Headset Jack",
SND_JACK_HEADSET |
SND_JACK_BTN_0 | SND_JACK_BTN_1 |
SND_JACK_BTN_2 | SND_JACK_BTN_3,
&headset_jack,
headset_jack_pins,
ARRAY_SIZE(headset_jack_pins));
if (ret)
return ret;
ret = ts3a227e_enable_jack_detect(component, &headset_jack);
return ret;
}
static int snd_rk_mc_probe(struct platform_device *pdev)
{
int ret = 0;
struct snd_soc_card *card = &snd_soc_card_rk;
struct device_node *np = pdev->dev.of_node;
/* register the soc card */
card->dev = &pdev->dev;
rk_dailink.codec_of_node = of_parse_phandle(np,
"rockchip,audio-codec", 0);
if (!rk_dailink.codec_of_node) {
dev_err(&pdev->dev,
"Property 'rockchip,audio-codec' missing or invalid\n");
return -EINVAL;
}
rk_dailink.cpu_of_node = of_parse_phandle(np,
"rockchip,i2s-controller", 0);
if (!rk_dailink.cpu_of_node) {
dev_err(&pdev->dev,
"Property 'rockchip,i2s-controller' missing or invalid\n");
return -EINVAL;
}
rk_dailink.platform_of_node = rk_dailink.cpu_of_node;
rk_98090_headset_dev.codec_of_node = of_parse_phandle(np,
"rockchip,headset-codec", 0);
if (!rk_98090_headset_dev.codec_of_node) {
dev_err(&pdev->dev,
"Property 'rockchip,headset-codec' missing/invalid\n");
return -EINVAL;
}
ret = snd_soc_of_parse_card_name(card, "rockchip,model");
if (ret) {
dev_err(&pdev->dev,
"Soc parse card name failed %d\n", ret);
return ret;
}
ret = devm_snd_soc_register_card(&pdev->dev, card);
if (ret) {
dev_err(&pdev->dev,
"Soc register card failed %d\n", ret);
return ret;
}
return ret;
}
static const struct of_device_id rockchip_max98090_of_match[] = {
{ .compatible = "rockchip,rockchip-audio-max98090", },
{},
};
MODULE_DEVICE_TABLE(of, rockchip_max98090_of_match);
static struct platform_driver snd_rk_mc_driver = {
.probe = snd_rk_mc_probe,
.driver = {
.name = DRV_NAME,
.pm = &snd_soc_pm_ops,
.of_match_table = rockchip_max98090_of_match,
},
};
module_platform_driver(snd_rk_mc_driver);
MODULE_AUTHOR("jianqun <jay.xu@rock-chips.com>");
MODULE_DESCRIPTION("Rockchip max98090 machine ASoC driver");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:" DRV_NAME);