ASoC: rockchip: Add machine driver for rt5645/rt5650 codec

The driver is used for rockchip board using a rt5645/rt5650.

Reviewed-by: Dylan Reid <dgreid@chromium.org>
Signed-off-by: zhengxing <zhengxing@rock-chips.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/Documentation/devicetree/bindings/sound/rockchip-rt5645.txt b/Documentation/devicetree/bindings/sound/rockchip-rt5645.txt
new file mode 100644 (file)
index 0000000..411a62b
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/rockchip-rt5645.txt
@@ -0,0 +1,17 @@
+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>;
+};

diff --git a/sound/soc/rockchip/Kconfig b/sound/soc/rockchip/Kconfig
index d123566..58bae8e 100644 (file)
--- a/sound/soc/rockchip/Kconfig
+++ b/sound/soc/rockchip/Kconfig
@@ -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.

diff --git a/sound/soc/rockchip/Makefile b/sound/soc/rockchip/Makefile
index df3445b..1bc1dc3 100644 (file)
--- a/sound/soc/rockchip/Makefile
+++ b/sound/soc/rockchip/Makefile
@@ -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

diff --git a/sound/soc/rockchip/rockchip_rt5645.c b/sound/soc/rockchip/rockchip_rt5645.c
new file mode 100644 (file)
index 0000000..3c6bb1e
--- /dev/null
+++ b/sound/soc/rockchip/rockchip_rt5645.c
@@ -0,0 +1,225 @@
+/*
+ * 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);