Adding upstream version 6.6.15.upstream/6.6.15

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

1 files changed, 188 insertions, 0 deletions

diff --git a/sound/soc/tegra/tegra_wm8903.c b/sound/soc/tegra/tegra_wm8903.c
new file mode 100644
index 0000000000..b3cd0a34da
--- /dev/null
+++ b/sound/soc/tegra/tegra_wm8903.c
@@ -0,0 +1,188 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * tegra_wm8903.c - Tegra machine ASoC driver for boards using WM8903 codec.
+ *
+ * Author: Stephen Warren <swarren@nvidia.com>
+ * Copyright (C) 2010-2012 - NVIDIA, Inc.
+ *
+ * Based on code copyright/by:
+ *
+ * (c) 2009, 2010 Nvidia Graphics Pvt. Ltd.
+ *
+ * Copyright 2007 Wolfson Microelectronics PLC.
+ * Author: Graeme Gregory
+ *         graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
+ */
+
+#include <linux/gpio/consumer.h>
+#include <linux/of.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <sound/core.h>
+#include <sound/jack.h>
+#include <sound/soc.h>
+
+#include "../codecs/wm8903.h"
+
+#include "tegra_asoc_machine.h"
+
+static struct snd_soc_jack_pin tegra_wm8903_mic_jack_pins[] = {
+	{ .pin = "Mic Jack", .mask = SND_JACK_MICROPHONE },
+};
+
+static unsigned int tegra_wm8903_mclk_rate(unsigned int srate)
+{
+	unsigned int mclk;
+
+	switch (srate) {
+	case 64000:
+	case 88200:
+	case 96000:
+		mclk = 128 * srate;
+		break;
+	default:
+		mclk = 256 * srate;
+		break;
+	}
+	/* FIXME: Codec only requires >= 3MHz if OSR==0 */
+	while (mclk < 6000000)
+		mclk *= 2;
+
+	return mclk;
+}
+
+static int tegra_wm8903_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct tegra_machine *machine = snd_soc_card_get_drvdata(rtd->card);
+	struct snd_soc_card *card = rtd->card;
+	int err;
+
+	/*
+	 * Older version of machine driver was ignoring GPIO polarity,
+	 * forcing it to active-low.  This means that all older device-trees
+	 * which set the polarity to active-high are wrong and we need to fix
+	 * them up.
+	 */
+	if (machine->asoc->hp_jack_gpio_active_low) {
+		bool active_low = gpiod_is_active_low(machine->gpiod_hp_det);
+
+		machine->hp_jack_gpio->invert = !active_low;
+	}
+
+	err = tegra_asoc_machine_init(rtd);
+	if (err)
+		return err;
+
+	if (!machine->gpiod_mic_det && machine->asoc->add_mic_jack) {
+		struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+		struct snd_soc_component *component = codec_dai->component;
+		int shrt = 0;
+
+		err = snd_soc_card_jack_new_pins(rtd->card, "Mic Jack",
+						 SND_JACK_MICROPHONE,
+						 machine->mic_jack,
+						 tegra_wm8903_mic_jack_pins,
+						 ARRAY_SIZE(tegra_wm8903_mic_jack_pins));
+		if (err) {
+			dev_err(rtd->dev, "Mic Jack creation failed: %d\n", err);
+			return err;
+		}
+
+		if (of_property_read_bool(card->dev->of_node, "nvidia,headset"))
+			shrt = SND_JACK_MICROPHONE;
+
+		wm8903_mic_detect(component, machine->mic_jack,
+				  SND_JACK_MICROPHONE, shrt);
+	}
+
+	snd_soc_dapm_force_enable_pin(&card->dapm, "MICBIAS");
+
+	return 0;
+}
+
+static int tegra_wm8903_remove(struct snd_soc_card *card)
+{
+	struct snd_soc_dai_link *link = &card->dai_link[0];
+	struct snd_soc_pcm_runtime *rtd = snd_soc_get_pcm_runtime(card, link);
+	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+	struct snd_soc_component *component = codec_dai->component;
+
+	wm8903_mic_detect(component, NULL, 0, 0);
+
+	return 0;
+}
+
+SND_SOC_DAILINK_DEFS(hifi,
+	DAILINK_COMP_ARRAY(COMP_EMPTY()),
+	DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm8903-hifi")),
+	DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+static struct snd_soc_dai_link tegra_wm8903_dai = {
+	.name = "WM8903",
+	.stream_name = "WM8903 PCM",
+	.init = tegra_wm8903_init,
+	.dai_fmt = SND_SOC_DAIFMT_I2S |
+		   SND_SOC_DAIFMT_NB_NF |
+		   SND_SOC_DAIFMT_CBS_CFS,
+	SND_SOC_DAILINK_REG(hifi),
+};
+
+static struct snd_soc_card snd_soc_tegra_wm8903 = {
+	.components = "codec:wm8903",
+	.owner = THIS_MODULE,
+	.dai_link = &tegra_wm8903_dai,
+	.num_links = 1,
+	.remove = tegra_wm8903_remove,
+	.fully_routed = true,
+};
+
+/* older device-trees used wrong polarity for the headphones-detection GPIO */
+static const struct tegra_asoc_data tegra_wm8903_data_legacy = {
+	.mclk_rate = tegra_wm8903_mclk_rate,
+	.card = &snd_soc_tegra_wm8903,
+	.hp_jack_gpio_active_low = true,
+	.add_common_dapm_widgets = true,
+	.add_common_controls = true,
+	.add_common_snd_ops = true,
+	.add_mic_jack = true,
+	.add_hp_jack = true,
+};
+
+static const struct tegra_asoc_data tegra_wm8903_data = {
+	.mclk_rate = tegra_wm8903_mclk_rate,
+	.card = &snd_soc_tegra_wm8903,
+	.add_common_dapm_widgets = true,
+	.add_common_controls = true,
+	.add_common_snd_ops = true,
+	.add_mic_jack = true,
+	.add_hp_jack = true,
+};
+
+static const struct of_device_id tegra_wm8903_of_match[] = {
+	{ .compatible = "ad,tegra-audio-plutux", .data = &tegra_wm8903_data_legacy },
+	{ .compatible = "ad,tegra-audio-wm8903-medcom-wide", .data = &tegra_wm8903_data_legacy },
+	{ .compatible = "ad,tegra-audio-wm8903-tec", .data = &tegra_wm8903_data_legacy },
+	{ .compatible = "nvidia,tegra-audio-wm8903-cardhu", .data = &tegra_wm8903_data_legacy },
+	{ .compatible = "nvidia,tegra-audio-wm8903-harmony", .data = &tegra_wm8903_data_legacy },
+	{ .compatible = "nvidia,tegra-audio-wm8903-picasso", .data = &tegra_wm8903_data_legacy },
+	{ .compatible = "nvidia,tegra-audio-wm8903-seaboard", .data = &tegra_wm8903_data_legacy },
+	{ .compatible = "nvidia,tegra-audio-wm8903-ventana", .data = &tegra_wm8903_data_legacy },
+	{ .compatible = "nvidia,tegra-audio-wm8903", .data = &tegra_wm8903_data },
+	{},
+};
+MODULE_DEVICE_TABLE(of, tegra_wm8903_of_match);
+
+static struct platform_driver tegra_wm8903_driver = {
+	.driver = {
+		.name = "tegra-wm8903",
+		.of_match_table = tegra_wm8903_of_match,
+		.pm = &snd_soc_pm_ops,
+	},
+	.probe = tegra_asoc_machine_probe,
+};
+module_platform_driver(tegra_wm8903_driver);
+
+MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>");
+MODULE_DESCRIPTION("Tegra+WM8903 machine ASoC driver");
+MODULE_LICENSE("GPL");