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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>
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ROCKCHIP RK3288 with HDMI and analog audio
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Required properties:
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- compatible: "rockchip,rk3288-hdmi-analog"
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- rockchip,model: The user-visible name of this sound complex
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- rockchip,i2s-controller: The phandle of the Rockchip I2S controller that's
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connected to the CODEC
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- rockchip,audio-codec: The phandle of the analog audio codec.
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- rockchip,routing: A list of the connections between audio components.
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Each entry is a pair of strings, the first being the
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connection's sink, the second being the connection's
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source. For this driver the first string should always be
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"Analog".
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Optionnal properties:
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- rockchip,hp-en-gpios = The phandle of the GPIO that power up/down the
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headphone (when the analog output is an headphone).
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- rockchip,hp-det-gpios = The phandle of the GPIO that detects the headphone
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(when the analog output is an headphone).
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- pinctrl-names, pinctrl-0: Please refer to pinctrl-bindings.txt
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Example:
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sound {
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compatible = "rockchip,rockchip-audio-es8388";
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rockchip,model = "Analog audio output";
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rockchip,i2s-controller = <&i2s>;
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rockchip,audio-codec = <&es8388>;
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rockchip,routing = "Analog", "LOUT2",
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"Analog", "ROUT2";
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rockchip,hp-en-gpios = <&gpio8 0 GPIO_ACTIVE_HIGH>;
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rockchip,hp-det-gpios = <&gpio7 7 GPIO_ACTIVE_HIGH>;
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pinctrl-names = "default";
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pinctrl-0 = <&headphone>;
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};
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@ -42,6 +42,15 @@ config SND_SOC_ROCKCHIP_RT5645
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Say Y or M here if you want to add support for SoC audio on Rockchip
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boards using the RT5645/RT5650 codec, such as Veyron.
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config SND_SOC_RK3288_HDMI_ANALOG
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tristate "ASoC support multiple codecs for Rockchip RK3288 boards"
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depends on SND_SOC_ROCKCHIP && I2C && GPIOLIB && CLKDEV_LOOKUP
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select SND_SOC_ROCKCHIP_I2S
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select SND_SOC_HDMI_CODEC
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help
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Say Y or M here if you want to add support for SoC audio on Rockchip
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RK3288 boards using an analog output and the built-in HDMI audio.
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config SND_SOC_RK3399_GRU_SOUND
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tristate "ASoC support multiple codecs for Rockchip RK3399 GRU boards"
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depends on SND_SOC_ROCKCHIP && I2C && GPIOLIB && CLKDEV_LOOKUP && SPI
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@ -7,8 +7,10 @@ obj-$(CONFIG_SND_SOC_ROCKCHIP_SPDIF) += snd-soc-rockchip-spdif.o
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snd-soc-rockchip-max98090-objs := rockchip_max98090.o
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snd-soc-rockchip-rt5645-objs := rockchip_rt5645.o
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snd-soc-rk3288-hdmi-analog-objs := rk3288_hdmi_analog.o
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snd-soc-rk3399-gru-sound-objs := rk3399_gru_sound.o
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obj-$(CONFIG_SND_SOC_ROCKCHIP_MAX98090) += snd-soc-rockchip-max98090.o
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obj-$(CONFIG_SND_SOC_ROCKCHIP_RT5645) += snd-soc-rockchip-rt5645.o
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obj-$(CONFIG_SND_SOC_RK3288_HDMI_ANALOG) += snd-soc-rk3288-hdmi-analog.o
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obj-$(CONFIG_SND_SOC_RK3399_GRU_SOUND) += snd-soc-rk3399-gru-sound.o
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299
sound/soc/rockchip/rk3288_hdmi_analog.c
Normal file
299
sound/soc/rockchip/rk3288_hdmi_analog.c
Normal file
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/*
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* Rockchip machine ASoC driver for RK3288 boards that have an HDMI and analog
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* audio output
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*
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* Copyright (c) 2016, Collabora Ltd.
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*
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* Authors: Sjoerd Simons <sjoerd.simons@collabora.com>,
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* Romain Perier <romain.perier@collabora.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/slab.h>
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#include <linux/gpio.h>
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#include <linux/of_gpio.h>
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#include <sound/core.h>
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#include <sound/jack.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include <sound/soc-dapm.h>
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#include "rockchip_i2s.h"
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#define DRV_NAME "rk3288-snd-hdmi-analog"
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struct rk_drvdata {
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int gpio_hp_en;
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int gpio_hp_det;
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};
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static int rk_hp_power(struct snd_soc_dapm_widget *w,
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struct snd_kcontrol *k, int event)
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{
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struct rk_drvdata *machine = snd_soc_card_get_drvdata(w->dapm->card);
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if (!gpio_is_valid(machine->gpio_hp_en))
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return 0;
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gpio_set_value_cansleep(machine->gpio_hp_en,
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SND_SOC_DAPM_EVENT_ON(event));
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return 0;
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}
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static struct snd_soc_jack headphone_jack;
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static struct snd_soc_jack_pin headphone_jack_pins[] = {
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{
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.pin = "Analog",
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.mask = SND_JACK_HEADPHONE
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},
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};
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static const struct snd_soc_dapm_widget rk_dapm_widgets[] = {
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SND_SOC_DAPM_HP("Analog", rk_hp_power),
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SND_SOC_DAPM_LINE("HDMI", NULL),
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};
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static const struct snd_kcontrol_new rk_mc_controls[] = {
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SOC_DAPM_PIN_SWITCH("Analog"),
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SOC_DAPM_PIN_SWITCH("HDMI"),
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};
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static int rk_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params)
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{
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int ret = 0;
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
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struct snd_soc_dai *codec_dai = rtd->codec_dai;
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int mclk;
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switch (params_rate(params)) {
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case 8000:
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case 16000:
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case 24000:
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case 32000:
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case 48000:
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case 64000:
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case 96000:
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mclk = 12288000;
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break;
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case 11025:
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case 22050:
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case 44100:
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case 88200:
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mclk = 11289600;
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break;
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default:
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return -EINVAL;
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}
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ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,
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SND_SOC_CLOCK_OUT);
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if (ret && ret != -ENOTSUPP) {
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dev_err(codec_dai->dev, "Can't set cpu clock %d\n", ret);
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return ret;
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}
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ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
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SND_SOC_CLOCK_IN);
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if (ret && ret != -ENOTSUPP) {
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dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret);
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return ret;
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}
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return 0;
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}
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static struct snd_soc_jack_gpio rk_hp_jack_gpio = {
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.name = "Headphone detection",
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.report = SND_JACK_HEADPHONE,
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.debounce_time = 150
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};
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static int rk_init(struct snd_soc_pcm_runtime *runtime)
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{
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struct rk_drvdata *machine = snd_soc_card_get_drvdata(runtime->card);
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/* Enable Headset Jack detection */
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if (gpio_is_valid(machine->gpio_hp_det)) {
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snd_soc_card_jack_new(runtime->card, "Headphone Jack",
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SND_JACK_HEADPHONE, &headphone_jack,
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headphone_jack_pins,
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ARRAY_SIZE(headphone_jack_pins));
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rk_hp_jack_gpio.gpio = machine->gpio_hp_det;
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snd_soc_jack_add_gpios(&headphone_jack, 1, &rk_hp_jack_gpio);
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}
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return 0;
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}
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static struct snd_soc_ops rk_ops = {
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.hw_params = rk_hw_params,
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};
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static struct snd_soc_dai_link_component rk_codecs[] = {
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{ },
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{
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.name = "hdmi-audio-codec.2.auto",
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.dai_name = "hdmi-hifi.0",
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},
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};
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static struct snd_soc_dai_link rk_dailink = {
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.name = "Codecs",
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.stream_name = "Audio",
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.init = rk_init,
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.ops = &rk_ops,
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.codecs = rk_codecs,
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.num_codecs = ARRAY_SIZE(rk_codecs),
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/* Set codecs as slave */
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBS_CFS,
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};
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static struct snd_soc_card snd_soc_card_rk = {
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.name = "ROCKCHIP-I2S",
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.dai_link = &rk_dailink,
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.num_links = 1,
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.num_aux_devs = 0,
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.dapm_widgets = rk_dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(rk_dapm_widgets),
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.controls = rk_mc_controls,
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.num_controls = ARRAY_SIZE(rk_mc_controls),
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};
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static int snd_rk_mc_probe(struct platform_device *pdev)
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{
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int ret = 0;
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struct snd_soc_card *card = &snd_soc_card_rk;
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struct device_node *np = pdev->dev.of_node;
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struct rk_drvdata *machine;
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struct of_phandle_args args;
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machine = devm_kzalloc(&pdev->dev, sizeof(struct rk_drvdata),
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GFP_KERNEL);
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if (!machine)
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return -ENOMEM;
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card->dev = &pdev->dev;
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machine->gpio_hp_det = of_get_named_gpio(np,
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"rockchip,hp-det-gpios", 0);
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if (!gpio_is_valid(machine->gpio_hp_det) && machine->gpio_hp_det != -ENODEV)
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return machine->gpio_hp_det;
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machine->gpio_hp_en = of_get_named_gpio(np,
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"rockchip,hp-en-gpios", 0);
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if (!gpio_is_valid(machine->gpio_hp_en) && machine->gpio_hp_en != -ENODEV)
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return machine->gpio_hp_en;
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if (gpio_is_valid(machine->gpio_hp_en)) {
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ret = devm_gpio_request_one(&pdev->dev, machine->gpio_hp_en,
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GPIOF_OUT_INIT_LOW, "hp_en");
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if (ret) {
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dev_err(card->dev, "cannot get hp_en gpio\n");
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return ret;
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}
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}
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ret = snd_soc_of_parse_card_name(card, "rockchip,model");
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if (ret) {
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dev_err(card->dev, "SoC parse card name failed %d\n", ret);
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return ret;
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}
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rk_dailink.codecs[0].of_node = of_parse_phandle(np,
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"rockchip,audio-codec",
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0);
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if (!rk_dailink.codecs[0].of_node) {
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dev_err(&pdev->dev,
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"Property 'rockchip,audio-codec' missing or invalid\n");
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return -EINVAL;
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}
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ret = of_parse_phandle_with_fixed_args(np, "rockchip,audio-codec",
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0, 0, &args);
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if (ret) {
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dev_err(&pdev->dev,
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"Unable to parse property 'rockchip,audio-codec'\n");
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return ret;
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}
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ret = snd_soc_get_dai_name(&args, &rk_dailink.codecs[0].dai_name);
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if (ret) {
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dev_err(&pdev->dev, "Unable to get codec_dai_name\n");
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return ret;
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}
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rk_dailink.cpu_of_node = of_parse_phandle(np, "rockchip,i2s-controller",
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0);
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if (!rk_dailink.cpu_of_node) {
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dev_err(&pdev->dev,
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"Property 'rockchip,i2s-controller' missing or invalid\n");
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return -EINVAL;
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}
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rk_dailink.platform_of_node = rk_dailink.cpu_of_node;
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ret = snd_soc_of_parse_audio_routing(card, "rockchip,routing");
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if (ret) {
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dev_err(&pdev->dev,
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"Unable to parse 'rockchip,routing' property\n");
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return ret;
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}
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snd_soc_card_set_drvdata(card, machine);
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ret = devm_snd_soc_register_card(&pdev->dev, card);
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if (ret == -EPROBE_DEFER)
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return -EPROBE_DEFER;
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if (ret) {
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dev_err(&pdev->dev,
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"Soc register card failed %d\n", ret);
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return ret;
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}
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platform_set_drvdata(pdev, card);
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return ret;
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}
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static const struct of_device_id rockchip_sound_of_match[] = {
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{ .compatible = "rockchip,rk3288-hdmi-analog", },
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{},
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};
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MODULE_DEVICE_TABLE(of, rockchip_sound_of_match);
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static struct platform_driver rockchip_sound_driver = {
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.probe = snd_rk_mc_probe,
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.driver = {
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.name = DRV_NAME,
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.owner = THIS_MODULE,
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.pm = &snd_soc_pm_ops,
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.of_match_table = rockchip_sound_of_match,
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},
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};
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module_platform_driver(rockchip_sound_driver);
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MODULE_AUTHOR("Sjoerd Simons <sjoerd.simons@collabora.com>");
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MODULE_DESCRIPTION("Rockchip RK3288 machine ASoC driver");
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MODULE_LICENSE("GPL v2");
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MODULE_ALIAS("platform:" DRV_NAME);
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