mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-05 21:36:44 +07:00
33db744abe
A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
156 lines
4.4 KiB
C
156 lines
4.4 KiB
C
/*
|
|
* SiRF audio card driver
|
|
*
|
|
* Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
|
|
*
|
|
* Licensed under GPLv2 or later.
|
|
*/
|
|
|
|
#include <linux/platform_device.h>
|
|
#include <linux/module.h>
|
|
#include <linux/of.h>
|
|
#include <linux/gpio.h>
|
|
#include <linux/of_gpio.h>
|
|
#include <sound/core.h>
|
|
#include <sound/pcm.h>
|
|
#include <sound/soc.h>
|
|
|
|
struct sirf_audio_card {
|
|
unsigned int gpio_hp_pa;
|
|
unsigned int gpio_spk_pa;
|
|
};
|
|
|
|
static int sirf_audio_hp_event(struct snd_soc_dapm_widget *w,
|
|
struct snd_kcontrol *ctrl, int event)
|
|
{
|
|
struct snd_soc_dapm_context *dapm = w->dapm;
|
|
struct snd_soc_card *card = dapm->card;
|
|
struct sirf_audio_card *sirf_audio_card = snd_soc_card_get_drvdata(card);
|
|
int on = !SND_SOC_DAPM_EVENT_OFF(event);
|
|
if (gpio_is_valid(sirf_audio_card->gpio_hp_pa))
|
|
gpio_set_value(sirf_audio_card->gpio_hp_pa, on);
|
|
return 0;
|
|
}
|
|
|
|
static int sirf_audio_spk_event(struct snd_soc_dapm_widget *w,
|
|
struct snd_kcontrol *ctrl, int event)
|
|
{
|
|
struct snd_soc_dapm_context *dapm = w->dapm;
|
|
struct snd_soc_card *card = dapm->card;
|
|
struct sirf_audio_card *sirf_audio_card = snd_soc_card_get_drvdata(card);
|
|
int on = !SND_SOC_DAPM_EVENT_OFF(event);
|
|
|
|
if (gpio_is_valid(sirf_audio_card->gpio_spk_pa))
|
|
gpio_set_value(sirf_audio_card->gpio_spk_pa, on);
|
|
|
|
return 0;
|
|
}
|
|
static const struct snd_soc_dapm_widget sirf_audio_dapm_widgets[] = {
|
|
SND_SOC_DAPM_HP("Hp", sirf_audio_hp_event),
|
|
SND_SOC_DAPM_SPK("Ext Spk", sirf_audio_spk_event),
|
|
SND_SOC_DAPM_MIC("Ext Mic", NULL),
|
|
};
|
|
|
|
static const struct snd_soc_dapm_route intercon[] = {
|
|
{"Hp", NULL, "HPOUTL"},
|
|
{"Hp", NULL, "HPOUTR"},
|
|
{"Ext Spk", NULL, "SPKOUT"},
|
|
{"MICIN1", NULL, "Mic Bias"},
|
|
{"Mic Bias", NULL, "Ext Mic"},
|
|
};
|
|
|
|
/* Digital audio interface glue - connects codec <--> CPU */
|
|
static struct snd_soc_dai_link sirf_audio_dai_link[] = {
|
|
{
|
|
.name = "SiRF audio card",
|
|
.stream_name = "SiRF audio HiFi",
|
|
.codec_dai_name = "sirf-audio-codec",
|
|
},
|
|
};
|
|
|
|
/* Audio machine driver */
|
|
static struct snd_soc_card snd_soc_sirf_audio_card = {
|
|
.name = "SiRF audio card",
|
|
.owner = THIS_MODULE,
|
|
.dai_link = sirf_audio_dai_link,
|
|
.num_links = ARRAY_SIZE(sirf_audio_dai_link),
|
|
.dapm_widgets = sirf_audio_dapm_widgets,
|
|
.num_dapm_widgets = ARRAY_SIZE(sirf_audio_dapm_widgets),
|
|
.dapm_routes = intercon,
|
|
.num_dapm_routes = ARRAY_SIZE(intercon),
|
|
};
|
|
|
|
static int sirf_audio_probe(struct platform_device *pdev)
|
|
{
|
|
struct snd_soc_card *card = &snd_soc_sirf_audio_card;
|
|
struct sirf_audio_card *sirf_audio_card;
|
|
int ret;
|
|
|
|
sirf_audio_card = devm_kzalloc(&pdev->dev, sizeof(struct sirf_audio_card),
|
|
GFP_KERNEL);
|
|
if (sirf_audio_card == NULL)
|
|
return -ENOMEM;
|
|
|
|
sirf_audio_dai_link[0].cpu_of_node =
|
|
of_parse_phandle(pdev->dev.of_node, "sirf,audio-platform", 0);
|
|
sirf_audio_dai_link[0].platform_of_node =
|
|
of_parse_phandle(pdev->dev.of_node, "sirf,audio-platform", 0);
|
|
sirf_audio_dai_link[0].codec_of_node =
|
|
of_parse_phandle(pdev->dev.of_node, "sirf,audio-codec", 0);
|
|
sirf_audio_card->gpio_spk_pa = of_get_named_gpio(pdev->dev.of_node,
|
|
"spk-pa-gpios", 0);
|
|
sirf_audio_card->gpio_hp_pa = of_get_named_gpio(pdev->dev.of_node,
|
|
"hp-pa-gpios", 0);
|
|
if (gpio_is_valid(sirf_audio_card->gpio_spk_pa)) {
|
|
ret = devm_gpio_request_one(&pdev->dev,
|
|
sirf_audio_card->gpio_spk_pa,
|
|
GPIOF_OUT_INIT_LOW, "SPA_PA_SD");
|
|
if (ret) {
|
|
dev_err(&pdev->dev,
|
|
"Failed to request GPIO_%d for reset: %d\n",
|
|
sirf_audio_card->gpio_spk_pa, ret);
|
|
return ret;
|
|
}
|
|
}
|
|
if (gpio_is_valid(sirf_audio_card->gpio_hp_pa)) {
|
|
ret = devm_gpio_request_one(&pdev->dev,
|
|
sirf_audio_card->gpio_hp_pa,
|
|
GPIOF_OUT_INIT_LOW, "HP_PA_SD");
|
|
if (ret) {
|
|
dev_err(&pdev->dev,
|
|
"Failed to request GPIO_%d for reset: %d\n",
|
|
sirf_audio_card->gpio_hp_pa, ret);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
card->dev = &pdev->dev;
|
|
snd_soc_card_set_drvdata(card, sirf_audio_card);
|
|
|
|
ret = devm_snd_soc_register_card(&pdev->dev, card);
|
|
if (ret)
|
|
dev_err(&pdev->dev, "snd_soc_register_card() failed:%d\n", ret);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static const struct of_device_id sirf_audio_of_match[] = {
|
|
{.compatible = "sirf,sirf-audio-card", },
|
|
{ },
|
|
};
|
|
MODULE_DEVICE_TABLE(of, sirf_audio_of_match);
|
|
|
|
static struct platform_driver sirf_audio_driver = {
|
|
.driver = {
|
|
.name = "sirf-audio-card",
|
|
.pm = &snd_soc_pm_ops,
|
|
.of_match_table = sirf_audio_of_match,
|
|
},
|
|
.probe = sirf_audio_probe,
|
|
};
|
|
module_platform_driver(sirf_audio_driver);
|
|
|
|
MODULE_AUTHOR("RongJun Ying <RongJun.Ying@csr.com>");
|
|
MODULE_DESCRIPTION("ALSA SoC SIRF audio card driver");
|
|
MODULE_LICENSE("GPL v2");
|