Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 229 insertions, 0 deletions

diff --git a/sound/soc/samsung/smartq_wm8987.c b/sound/soc/samsung/smartq_wm8987.c
new file mode 100644
index 000000000..cf0f54e65
--- /dev/null
+++ b/sound/soc/samsung/smartq_wm8987.c
@@ -0,0 +1,229 @@
+/* sound/soc/samsung/smartq_wm8987.c
+ *
+ * Copyright 2010 Maurus Cuelenaere <mcuelenaere@gmail.com>
+ *
+ * Based on smdk6410_wm8987.c
+ *     Copyright 2007 Wolfson Microelectronics PLC. - linux@wolfsonmicro.com
+ *     Graeme Gregory - graeme.gregory@wolfsonmicro.com
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ */
+
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+
+#include <sound/soc.h>
+#include <sound/jack.h>
+
+#include "i2s.h"
+#include "../codecs/wm8750.h"
+
+/*
+ * WM8987 is register compatible with WM8750, so using that as base driver.
+ */
+
+static struct snd_soc_card snd_soc_smartq;
+
+static int smartq_hifi_hw_params(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *codec_dai = rtd->codec_dai;
+	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+	unsigned int clk = 0;
+	int ret;
+
+	switch (params_rate(params)) {
+	case 8000:
+	case 16000:
+	case 32000:
+	case 48000:
+	case 96000:
+		clk = 12288000;
+		break;
+	case 11025:
+	case 22050:
+	case 44100:
+	case 88200:
+		clk = 11289600;
+		break;
+	}
+
+	/* Use PCLK for I2S signal generation */
+	ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_RCLKSRC_0,
+					0, SND_SOC_CLOCK_IN);
+	if (ret < 0)
+		return ret;
+
+	/* Gate the RCLK output on PAD */
+	ret = snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_CDCLK,
+					0, SND_SOC_CLOCK_IN);
+	if (ret < 0)
+		return ret;
+
+	/* set the codec system clock for DAC and ADC */
+	ret = snd_soc_dai_set_sysclk(codec_dai, WM8750_SYSCLK, clk,
+				     SND_SOC_CLOCK_IN);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+/*
+ * SmartQ WM8987 HiFi DAI operations.
+ */
+static struct snd_soc_ops smartq_hifi_ops = {
+	.hw_params = smartq_hifi_hw_params,
+};
+
+static struct snd_soc_jack smartq_jack;
+
+static struct snd_soc_jack_pin smartq_jack_pins[] = {
+	/* Disable speaker when headphone is plugged in */
+	{
+		.pin	= "Internal Speaker",
+		.mask	= SND_JACK_HEADPHONE,
+	},
+};
+
+static struct snd_soc_jack_gpio smartq_jack_gpios[] = {
+	{
+		.gpio		= -1,
+		.name		= "headphone detect",
+		.report		= SND_JACK_HEADPHONE,
+		.debounce_time	= 200,
+	},
+};
+
+static const struct snd_kcontrol_new wm8987_smartq_controls[] = {
+	SOC_DAPM_PIN_SWITCH("Internal Speaker"),
+	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
+	SOC_DAPM_PIN_SWITCH("Internal Mic"),
+};
+
+static int smartq_speaker_event(struct snd_soc_dapm_widget *w,
+				struct snd_kcontrol *k,
+				int event)
+{
+	struct gpio_desc *gpio = snd_soc_card_get_drvdata(&snd_soc_smartq);
+
+	gpiod_set_value(gpio, SND_SOC_DAPM_EVENT_OFF(event));
+
+	return 0;
+}
+
+static const struct snd_soc_dapm_widget wm8987_dapm_widgets[] = {
+	SND_SOC_DAPM_SPK("Internal Speaker", smartq_speaker_event),
+	SND_SOC_DAPM_HP("Headphone Jack", NULL),
+	SND_SOC_DAPM_MIC("Internal Mic", NULL),
+};
+
+static const struct snd_soc_dapm_route audio_map[] = {
+	{"Headphone Jack", NULL, "LOUT2"},
+	{"Headphone Jack", NULL, "ROUT2"},
+
+	{"Internal Speaker", NULL, "LOUT2"},
+	{"Internal Speaker", NULL, "ROUT2"},
+
+	{"Mic Bias", NULL, "Internal Mic"},
+	{"LINPUT2", NULL, "Mic Bias"},
+};
+
+static int smartq_wm8987_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_dapm_context *dapm = &rtd->card->dapm;
+	int err = 0;
+
+	/* set endpoints to not connected */
+	snd_soc_dapm_nc_pin(dapm, "LINPUT1");
+	snd_soc_dapm_nc_pin(dapm, "RINPUT1");
+	snd_soc_dapm_nc_pin(dapm, "OUT3");
+	snd_soc_dapm_nc_pin(dapm, "ROUT1");
+
+	/* Headphone jack detection */
+	err = snd_soc_card_jack_new(rtd->card, "Headphone Jack",
+				    SND_JACK_HEADPHONE, &smartq_jack,
+				    smartq_jack_pins,
+				    ARRAY_SIZE(smartq_jack_pins));
+	if (err)
+		return err;
+
+	err = snd_soc_jack_add_gpios(&smartq_jack,
+				     ARRAY_SIZE(smartq_jack_gpios),
+				     smartq_jack_gpios);
+
+	return err;
+}
+
+static struct snd_soc_dai_link smartq_dai[] = {
+	{
+		.name		= "wm8987",
+		.stream_name	= "SmartQ Hi-Fi",
+		.cpu_dai_name	= "samsung-i2s.0",
+		.codec_dai_name	= "wm8750-hifi",
+		.platform_name	= "samsung-i2s.0",
+		.codec_name	= "wm8750.0-0x1a",
+		.init		= smartq_wm8987_init,
+		.dai_fmt	= SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+				  SND_SOC_DAIFMT_CBS_CFS,
+		.ops		= &smartq_hifi_ops,
+	},
+};
+
+static struct snd_soc_card snd_soc_smartq = {
+	.name = "SmartQ",
+	.owner = THIS_MODULE,
+	.dai_link = smartq_dai,
+	.num_links = ARRAY_SIZE(smartq_dai),
+
+	.dapm_widgets = wm8987_dapm_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(wm8987_dapm_widgets),
+	.dapm_routes = audio_map,
+	.num_dapm_routes = ARRAY_SIZE(audio_map),
+	.controls = wm8987_smartq_controls,
+	.num_controls = ARRAY_SIZE(wm8987_smartq_controls),
+};
+
+static int smartq_probe(struct platform_device *pdev)
+{
+	struct gpio_desc *gpio;
+	int ret;
+
+	platform_set_drvdata(pdev, &snd_soc_smartq);
+
+	/* Initialise GPIOs used by amplifiers */
+	gpio = devm_gpiod_get(&pdev->dev, "amplifiers shutdown",
+			      GPIOD_OUT_HIGH);
+	if (IS_ERR(gpio)) {
+		dev_err(&pdev->dev, "Failed to register GPK12\n");
+		ret = PTR_ERR(gpio);
+		goto out;
+	}
+	snd_soc_card_set_drvdata(&snd_soc_smartq, gpio);
+
+	ret = devm_snd_soc_register_card(&pdev->dev, &snd_soc_smartq);
+	if (ret)
+		dev_err(&pdev->dev, "Failed to register card\n");
+
+out:
+	return ret;
+}
+
+static struct platform_driver smartq_driver = {
+	.driver = {
+		.name = "smartq-audio",
+	},
+	.probe = smartq_probe,
+};
+
+module_platform_driver(smartq_driver);
+
+/* Module information */
+MODULE_AUTHOR("Maurus Cuelenaere <mcuelenaere@gmail.com>");
+MODULE_DESCRIPTION("ALSA SoC SmartQ WM8987");
+MODULE_LICENSE("GPL");