ASoC: rockchip: Add machine driver for RK3288 boards that use analog/HDMI

The driver is used for Rockchip rk3288-based boards using a configurable
analog output (can be an headphone) and the built-in HDMI audio output
that is part of the RK3288 SoCs and use the Alsa HDMI codec driver. For
some rk3288-based boards the analog output and the hdmi audio are plugged
on the same i2s line, so we have to do the same in the driver by using a
DAI link CPU to multicodecs. This configuration can be found for example
on the Radxa Rock2 or the Firefly-RK3288.

This commit is based on the initial work that was done by Sjoerd Simons
<sjoerd.simons@collabora.com> with some improvements.

Signed-off-by: Romain Perier <romain.perier@collabora.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Romain Perier 2017-02-03 15:37:59 +01:00 коммит произвёл Mark Brown
Родитель a5de5b74a5
Коммит eaae2ea735
4 изменённых файлов: 346 добавлений и 0 удалений

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@ -0,0 +1,36 @@
ROCKCHIP RK3288 with HDMI and analog audio
Required properties:
- compatible: "rockchip,rk3288-hdmi-analog"
- rockchip,model: The user-visible name of this sound complex
- rockchip,i2s-controller: The phandle of the Rockchip I2S controller that's
connected to the CODEC
- rockchip,audio-codec: The phandle of the analog audio codec.
- rockchip,routing: A list of the connections between audio components.
Each entry is a pair of strings, the first being the
connection's sink, the second being the connection's
source. For this driver the first string should always be
"Analog".
Optionnal properties:
- rockchip,hp-en-gpios = The phandle of the GPIO that power up/down the
headphone (when the analog output is an headphone).
- rockchip,hp-det-gpios = The phandle of the GPIO that detects the headphone
(when the analog output is an headphone).
- pinctrl-names, pinctrl-0: Please refer to pinctrl-bindings.txt
Example:
sound {
compatible = "rockchip,rockchip-audio-es8388";
rockchip,model = "Analog audio output";
rockchip,i2s-controller = <&i2s>;
rockchip,audio-codec = <&es8388>;
rockchip,routing = "Analog", "LOUT2",
"Analog", "ROUT2";
rockchip,hp-en-gpios = <&gpio8 0 GPIO_ACTIVE_HIGH>;
rockchip,hp-det-gpios = <&gpio7 7 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
pinctrl-0 = <&headphone>;
};

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@ -42,6 +42,15 @@ config SND_SOC_ROCKCHIP_RT5645
Say Y or M here if you want to add support for SoC audio on Rockchip
boards using the RT5645/RT5650 codec, such as Veyron.
config SND_SOC_RK3288_HDMI_ANALOG
tristate "ASoC support multiple codecs for Rockchip RK3288 boards"
depends on SND_SOC_ROCKCHIP && I2C && GPIOLIB && CLKDEV_LOOKUP
select SND_SOC_ROCKCHIP_I2S
select SND_SOC_HDMI_CODEC
help
Say Y or M here if you want to add support for SoC audio on Rockchip
RK3288 boards using an analog output and the built-in HDMI audio.
config SND_SOC_RK3399_GRU_SOUND
tristate "ASoC support multiple codecs for Rockchip RK3399 GRU boards"
depends on SND_SOC_ROCKCHIP && I2C && GPIOLIB && CLKDEV_LOOKUP && SPI

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@ -7,8 +7,10 @@ obj-$(CONFIG_SND_SOC_ROCKCHIP_SPDIF) += snd-soc-rockchip-spdif.o
snd-soc-rockchip-max98090-objs := rockchip_max98090.o
snd-soc-rockchip-rt5645-objs := rockchip_rt5645.o
snd-soc-rk3288-hdmi-analog-objs := rk3288_hdmi_analog.o
snd-soc-rk3399-gru-sound-objs := rk3399_gru_sound.o
obj-$(CONFIG_SND_SOC_ROCKCHIP_MAX98090) += snd-soc-rockchip-max98090.o
obj-$(CONFIG_SND_SOC_ROCKCHIP_RT5645) += snd-soc-rockchip-rt5645.o
obj-$(CONFIG_SND_SOC_RK3288_HDMI_ANALOG) += snd-soc-rk3288-hdmi-analog.o
obj-$(CONFIG_SND_SOC_RK3399_GRU_SOUND) += snd-soc-rk3399-gru-sound.o

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@ -0,0 +1,299 @@
/*
* Rockchip machine ASoC driver for RK3288 boards that have an HDMI and analog
* audio output
*
* Copyright (c) 2016, Collabora Ltd.
*
* Authors: Sjoerd Simons <sjoerd.simons@collabora.com>,
* Romain Perier <romain.perier@collabora.com>
*
* 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 <sound/soc-dapm.h>
#include "rockchip_i2s.h"
#define DRV_NAME "rk3288-snd-hdmi-analog"
struct rk_drvdata {
int gpio_hp_en;
int gpio_hp_det;
};
static int rk_hp_power(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *k, int event)
{
struct rk_drvdata *machine = snd_soc_card_get_drvdata(w->dapm->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 struct snd_soc_jack headphone_jack;
static struct snd_soc_jack_pin headphone_jack_pins[] = {
{
.pin = "Analog",
.mask = SND_JACK_HEADPHONE
},
};
static const struct snd_soc_dapm_widget rk_dapm_widgets[] = {
SND_SOC_DAPM_HP("Analog", rk_hp_power),
SND_SOC_DAPM_LINE("HDMI", NULL),
};
static const struct snd_kcontrol_new rk_mc_controls[] = {
SOC_DAPM_PIN_SWITCH("Analog"),
SOC_DAPM_PIN_SWITCH("HDMI"),
};
static int rk_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 && ret != -ENOTSUPP) {
dev_err(codec_dai->dev, "Can't set cpu clock %d\n", ret);
return ret;
}
ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
SND_SOC_CLOCK_IN);
if (ret && ret != -ENOTSUPP) {
dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);
return ret;
}
return 0;
}
static struct snd_soc_jack_gpio rk_hp_jack_gpio = {
.name = "Headphone detection",
.report = SND_JACK_HEADPHONE,
.debounce_time = 150
};
static int rk_init(struct snd_soc_pcm_runtime *runtime)
{
struct rk_drvdata *machine = snd_soc_card_get_drvdata(runtime->card);
/* Enable Headset Jack detection */
if (gpio_is_valid(machine->gpio_hp_det)) {
snd_soc_card_jack_new(runtime->card, "Headphone Jack",
SND_JACK_HEADPHONE, &headphone_jack,
headphone_jack_pins,
ARRAY_SIZE(headphone_jack_pins));
rk_hp_jack_gpio.gpio = machine->gpio_hp_det;
snd_soc_jack_add_gpios(&headphone_jack, 1, &rk_hp_jack_gpio);
}
return 0;
}
static struct snd_soc_ops rk_ops = {
.hw_params = rk_hw_params,
};
static struct snd_soc_dai_link_component rk_codecs[] = {
{ },
{
.name = "hdmi-audio-codec.2.auto",
.dai_name = "hdmi-hifi.0",
},
};
static struct snd_soc_dai_link rk_dailink = {
.name = "Codecs",
.stream_name = "Audio",
.init = rk_init,
.ops = &rk_ops,
.codecs = rk_codecs,
.num_codecs = ARRAY_SIZE(rk_codecs),
/* Set codecs as slave */
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBS_CFS,
};
static struct snd_soc_card snd_soc_card_rk = {
.name = "ROCKCHIP-I2S",
.dai_link = &rk_dailink,
.num_links = 1,
.num_aux_devs = 0,
.dapm_widgets = rk_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(rk_dapm_widgets),
.controls = rk_mc_controls,
.num_controls = ARRAY_SIZE(rk_mc_controls),
};
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;
struct rk_drvdata *machine;
struct of_phandle_args args;
machine = devm_kzalloc(&pdev->dev, sizeof(struct rk_drvdata),
GFP_KERNEL);
if (!machine)
return -ENOMEM;
card->dev = &pdev->dev;
machine->gpio_hp_det = of_get_named_gpio(np,
"rockchip,hp-det-gpios", 0);
if (!gpio_is_valid(machine->gpio_hp_det) && machine->gpio_hp_det != -ENODEV)
return machine->gpio_hp_det;
machine->gpio_hp_en = of_get_named_gpio(np,
"rockchip,hp-en-gpios", 0);
if (!gpio_is_valid(machine->gpio_hp_en) && machine->gpio_hp_en != -ENODEV)
return machine->gpio_hp_en;
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;
}
}
ret = snd_soc_of_parse_card_name(card, "rockchip,model");
if (ret) {
dev_err(card->dev, "SoC parse card name failed %d\n", ret);
return ret;
}
rk_dailink.codecs[0].of_node = of_parse_phandle(np,
"rockchip,audio-codec",
0);
if (!rk_dailink.codecs[0].of_node) {
dev_err(&pdev->dev,
"Property 'rockchip,audio-codec' missing or invalid\n");
return -EINVAL;
}
ret = of_parse_phandle_with_fixed_args(np, "rockchip,audio-codec",
0, 0, &args);
if (ret) {
dev_err(&pdev->dev,
"Unable to parse property 'rockchip,audio-codec'\n");
return ret;
}
ret = snd_soc_get_dai_name(&args, &rk_dailink.codecs[0].dai_name);
if (ret) {
dev_err(&pdev->dev, "Unable to get codec_dai_name\n");
return ret;
}
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;
ret = snd_soc_of_parse_audio_routing(card, "rockchip,routing");
if (ret) {
dev_err(&pdev->dev,
"Unable to parse 'rockchip,routing' property\n");
return ret;
}
snd_soc_card_set_drvdata(card, machine);
ret = devm_snd_soc_register_card(&pdev->dev, card);
if (ret == -EPROBE_DEFER)
return -EPROBE_DEFER;
if (ret) {
dev_err(&pdev->dev,
"Soc register card failed %d\n", ret);
return ret;
}
platform_set_drvdata(pdev, card);
return ret;
}
static const struct of_device_id rockchip_sound_of_match[] = {
{ .compatible = "rockchip,rk3288-hdmi-analog", },
{},
};
MODULE_DEVICE_TABLE(of, rockchip_sound_of_match);
static struct platform_driver rockchip_sound_driver = {
.probe = snd_rk_mc_probe,
.driver = {
.name = DRV_NAME,
.owner = THIS_MODULE,
.pm = &snd_soc_pm_ops,
.of_match_table = rockchip_sound_of_match,
},
};
module_platform_driver(rockchip_sound_driver);
MODULE_AUTHOR("Sjoerd Simons <sjoerd.simons@collabora.com>");
MODULE_DESCRIPTION("Rockchip RK3288 machine ASoC driver");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:" DRV_NAME);