ASoC: AMD: Add machine driver for cz rt5650

The driver is used for AMD board using rt5650 codec.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Akshu Agrawal <akshu.agrawal@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dylan Reid <dgreid@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/amd/Kconfig

@@ -2,3 +2,10 @@ config SND_SOC_AMD_ACP
 	tristate "AMD Audio Coprocessor support"
 	help
 	 This option enables ACP DMA support on AMD platform.
+
+config SND_SOC_AMD_CZ_RT5645_MACH
+	tristate "AMD CZ support for RT5645"
+	select SND_SOC_RT5645
+	depends on SND_SOC_AMD_ACP && I2C
+	help
+	 This option enables machine driver for rt5645.

sound/soc/amd/Makefile

@@ -1,3 +1,5 @@
 snd-soc-acp-pcm-objs	:= acp-pcm-dma.o
+snd-soc-acp-rt5645-mach-objs := acp-rt5645.o
 
 obj-$(CONFIG_SND_SOC_AMD_ACP) += snd-soc-acp-pcm.o
+obj-$(CONFIG_SND_SOC_AMD_CZ_RT5645_MACH) += snd-soc-acp-rt5645-mach.o

sound/soc/amd/acp-rt5645.c

@@ -0,0 +1,199 @@
+/*
+ * Machine driver for AMD ACP Audio engine using Realtek RT5645 codec
+ *
+ * Copyright 2017 Advanced Micro Devices, Inc.
+ *
+ * This file is modified from rt288 machine driver
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ *
+ */
+
+#include <sound/core.h>
+#include <sound/soc.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc-dapm.h>
+#include <sound/jack.h>
+#include <linux/gpio.h>
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/acpi.h>
+
+#include "../codecs/rt5645.h"
+
+#define CZ_PLAT_CLK 24000000
+
+static struct snd_soc_jack cz_jack;
+
+static int cz_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 *codec_dai = rtd->codec_dai;
+
+	ret = snd_soc_dai_set_pll(codec_dai, 0, RT5645_PLL1_S_MCLK,
+				  CZ_PLAT_CLK, params_rate(params) * 512);
+	if (ret < 0) {
+		dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
+		return ret;
+	}
+
+	ret = snd_soc_dai_set_sysclk(codec_dai, RT5645_SCLK_S_PLL1,
+				params_rate(params) * 512, SND_SOC_CLOCK_OUT);
+	if (ret < 0) {
+		dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret);
+		return ret;
+	}
+
+	return ret;
+}
+
+static int cz_init(struct snd_soc_pcm_runtime *rtd)
+{
+	int ret;
+	struct snd_soc_card *card;
+	struct snd_soc_codec *codec;
+
+	codec = rtd->codec;
+	card = rtd->card;
+
+	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,
+				&cz_jack, NULL, 0);
+	if (ret) {
+		dev_err(card->dev, "HP jack creation failed %d\n", ret);
+		return ret;
+	}
+
+	rt5645_set_jack_detect(codec, &cz_jack, &cz_jack, &cz_jack);
+
+	return 0;
+}
+
+static struct snd_soc_ops cz_aif1_ops = {
+	.hw_params = cz_aif1_hw_params,
+};
+
+static struct snd_soc_dai_link cz_dai_rt5650[] = {
+	{
+		.name = "amd-rt5645-play",
+		.stream_name = "RT5645_AIF1",
+		.platform_name = "acp_audio_dma.0.auto",
+		.cpu_dai_name = "designware-i2s.1.auto",
+		.codec_dai_name = "rt5645-aif1",
+		.codec_name = "i2c-10EC5650:00",
+		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
+				| SND_SOC_DAIFMT_CBM_CFM,
+		.init = cz_init,
+		.ops = &cz_aif1_ops,
+	},
+	{
+		.name = "amd-rt5645-cap",
+		.stream_name = "RT5645_AIF1",
+		.platform_name = "acp_audio_dma.0.auto",
+		.cpu_dai_name = "designware-i2s.2.auto",
+		.codec_dai_name = "rt5645-aif1",
+		.codec_name = "i2c-10EC5650:00",
+		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
+				| SND_SOC_DAIFMT_CBM_CFM,
+		.ops = &cz_aif1_ops,
+	},
+};
+
+static const struct snd_soc_dapm_widget cz_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 cz_audio_route[] = {
+	{"Headphones", NULL, "HPOL"},
+	{"Headphones", NULL, "HPOR"},
+	{"RECMIXL", NULL, "Headset Mic"},
+	{"RECMIXR", NULL, "Headset Mic"},
+	{"Speakers", NULL, "SPOL"},
+	{"Speakers", NULL, "SPOR"},
+	{"DMIC L2", NULL, "Int Mic"},
+	{"DMIC R2", NULL, "Int Mic"},
+};
+
+static const struct snd_kcontrol_new cz_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 struct snd_soc_card cz_card = {
+	.name = "acprt5650",
+	.owner = THIS_MODULE,
+	.dai_link = cz_dai_rt5650,
+	.num_links = ARRAY_SIZE(cz_dai_rt5650),
+	.dapm_widgets = cz_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(cz_widgets),
+	.dapm_routes = cz_audio_route,
+	.num_dapm_routes = ARRAY_SIZE(cz_audio_route),
+	.controls = cz_mc_controls,
+	.num_controls = ARRAY_SIZE(cz_mc_controls),
+};
+
+static int cz_probe(struct platform_device *pdev)
+{
+	int ret;
+	struct snd_soc_card *card;
+
+	card = &cz_card;
+	cz_card.dev = &pdev->dev;
+	platform_set_drvdata(pdev, card);
+	ret = devm_snd_soc_register_card(&pdev->dev, &cz_card);
+	if (ret) {
+		dev_err(&pdev->dev,
+				"devm_snd_soc_register_card(%s) failed: %d\n",
+				cz_card.name, ret);
+		return ret;
+	}
+	return 0;
+}
+
+static const struct acpi_device_id cz_audio_acpi_match[] = {
+	{ "AMDI1002", 0 },
+	{},
+};
+MODULE_DEVICE_TABLE(acpi, cz_audio_acpi_match);
+
+static struct platform_driver cz_pcm_driver = {
+	.driver = {
+		.name = "cz-rt5645",
+		.acpi_match_table = ACPI_PTR(cz_audio_acpi_match),
+		.pm = &snd_soc_pm_ops,
+	},
+	.probe = cz_probe,
+};
+
+module_platform_driver(cz_pcm_driver);
+
+MODULE_AUTHOR("akshu.agrawal@amd.com");
+MODULE_DESCRIPTION("cz-rt5645 audio support");
+MODULE_LICENSE("GPL v2");