ASoC: rockchip: Add machine driver for rt5645/rt5650 codec (86059653) · Commits · e / devices / android_kernel_fairphone_FP3

Documentation/devicetree/bindings/sound/rockchip-rt5645.txt

0 → 100644

+17 −0

Original line number	Diff line number	Diff line
		ROCKCHIP with RT5645/RT5650 CODECS

		Required properties:
		- compatible: "rockchip,rockchip-audio-rt5645"
		- 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 RT5645/RT5650 audio codec

		Example:

		sound {
		compatible = "rockchip,rockchip-audio-rt5645";
		rockchip,model = "ROCKCHIP-I2S";
		rockchip,i2s-controller = <&i2s>;
		rockchip,audio-codec = <&rt5645>;
		};

sound/soc/rockchip/Kconfig

+9 −0

Original line number	Diff line number	Diff line
		@@ -24,3 +24,12 @@ config SND_SOC_ROCKCHIP_MAX98090
		help
		Say Y or M here if you want to add support for SoC audio on Rockchip
		boards using the MAX98090 codec, such as Veyron.

		config SND_SOC_ROCKCHIP_RT5645
		tristate "ASoC support for Rockchip boards using a RT5645/RT5650 codec"
		depends on SND_SOC_ROCKCHIP && I2C && GPIOLIB
		select SND_SOC_ROCKCHIP_I2S
		select SND_SOC_RT5645
		help
		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.

sound/soc/rockchip/Makefile

+2 −0

Original line number	Diff line number	Diff line
		@@ -4,5 +4,7 @@ snd-soc-i2s-objs := rockchip_i2s.o
		obj-$(CONFIG_SND_SOC_ROCKCHIP_I2S) += snd-soc-i2s.o

		snd-soc-rockchip-max98090-objs := rockchip_max98090.o
		snd-soc-rockchip-rt5645-objs := rockchip_rt5645.o

		obj-$(CONFIG_SND_SOC_ROCKCHIP_MAX98090) += snd-soc-rockchip-max98090.o
		obj-$(CONFIG_SND_SOC_ROCKCHIP_RT5645) += snd-soc-rockchip-rt5645.o

sound/soc/rockchip/rockchip_rt5645.c

0 → 100644

+225 −0

Original line number	Diff line number	Diff line
		/*
		* Rockchip machine ASoC driver for boards using a RT5645/RT5650 CODEC.
		*
		* Copyright (c) 2015, 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 <linux/delay.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"

		#define DRV_NAME "rockchip-snd-rt5645"

		static struct snd_soc_jack headset_jack;

		/* Jack detect via rt5645 driver. */
		extern int rt5645_set_jack_detect(struct snd_soc_codec *codec,
		struct snd_soc_jack hp_jack, struct snd_soc_jack mic_jack,
		struct snd_soc_jack *btn_jack);

		static const struct snd_soc_dapm_widget rk_dapm_widgets[] = {
		SND_SOC_DAPM_HP("Headphones", NULL),
		SND_SOC_DAPM_SPK("Speakers", NULL),
		SND_SOC_DAPM_MIC("Headset Mic", NULL),
		SND_SOC_DAPM_MIC("Int Mic", NULL),
		};

		static const struct snd_soc_dapm_route rk_audio_map[] = {
		/* Input Lines */
		{"DMIC L2", NULL, "Int Mic"},
		{"DMIC R2", NULL, "Int Mic"},
		{"RECMIXL", NULL, "Headset Mic"},
		{"RECMIXR", NULL, "Headset Mic"},

		/* Output Lines */
		{"Headphones", NULL, "HPOR"},
		{"Headphones", NULL, "HPOL"},
		{"Speakers", NULL, "SPOL"},
		{"Speakers", NULL, "SPOR"},
		};

		static const struct snd_kcontrol_new rk_mc_controls[] = {
		SOC_DAPM_PIN_SWITCH("Headphones"),
		SOC_DAPM_PIN_SWITCH("Speakers"),
		SOC_DAPM_PIN_SWITCH("Headset Mic"),
		SOC_DAPM_PIN_SWITCH("Int Mic"),
		};

		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 48000:
		case 96000:
		mclk = 12288000;
		break;
		case 44100:
		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 int rk_init(struct snd_soc_pcm_runtime *runtime)
		{
		struct snd_soc_card *card = runtime->card;
		int ret;

		/* Enable Headset and 4 Buttons Jack detection */
		ret = snd_soc_card_jack_new(card, "Headset Jack",
		SND_JACK_HEADPHONE \| SND_JACK_MICROPHONE \|
		SND_JACK_BTN_0 \| SND_JACK_BTN_1 \|
		SND_JACK_BTN_2 \| SND_JACK_BTN_3,
		&headset_jack, NULL, 0);
		if (!ret) {
		dev_err(card->dev, "New Headset Jack failed! (%d)\n", ret);
		return ret;
		}

		return rt5645_set_jack_detect(runtime->codec,
		&headset_jack,
		&headset_jack,
		&headset_jack);
		}

		static struct snd_soc_ops rk_aif1_ops = {
		.hw_params = rk_aif1_hw_params,
		};

		static struct snd_soc_dai_link rk_dailink = {
		.name = "rt5645",
		.stream_name = "rt5645 PCM",
		.codec_dai_name = "rt5645-aif1",
		.init = rk_init,
		.ops = &rk_aif1_ops,
		/* set rt5645 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 = "I2S-RT5650",
		.dai_link = &rk_dailink,
		.num_links = 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 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;

		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_rt5645_of_match[] = {
		{ .compatible = "rockchip,rockchip-audio-rt5645", },
		{},
		};

		MODULE_DEVICE_TABLE(of, rockchip_rt5645_of_match);

		static struct platform_driver snd_rk_mc_driver = {
		.probe = snd_rk_mc_probe,
		.driver = {
		.name = DRV_NAME,
		.owner = THIS_MODULE,
		.pm = &snd_soc_pm_ops,
		.of_match_table = rockchip_rt5645_of_match,
		},
		};

		module_platform_driver(snd_rk_mc_driver);

		MODULE_AUTHOR("Xing Zheng <zhengxing@rock-chips.com>");
		MODULE_DESCRIPTION("Rockchip rt5645 machine ASoC driver");
		MODULE_LICENSE("GPL v2");
		MODULE_ALIAS("platform:" DRV_NAME);