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>tirimbino
Romain Perier
8 years ago
committed by
Mark Brown
parent
a5de5b74a5
commit
eaae2ea735
@ -0,0 +1,36 @@ |
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ROCKCHIP RK3288 with HDMI and analog audio |
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|
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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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|
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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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|
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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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@ -0,0 +1,299 @@ |
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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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|
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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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Loading…
Reference in new issue