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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /sound/soc/codecs/wm8782.c
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'sound/soc/codecs/wm8782.c')
-rw-r--r--sound/soc/codecs/wm8782.c148
1 files changed, 148 insertions, 0 deletions
diff --git a/sound/soc/codecs/wm8782.c b/sound/soc/codecs/wm8782.c
new file mode 100644
index 000000000..95ff4339d
--- /dev/null
+++ b/sound/soc/codecs/wm8782.c
@@ -0,0 +1,148 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * sound/soc/codecs/wm8782.c
+ * simple, strap-pin configured 24bit 2ch ADC
+ *
+ * Copyright: 2011 Raumfeld GmbH
+ * Author: Johannes Stezenbach <js@sig21.net>
+ *
+ * based on ad73311.c
+ * Copyright: Analog Devices Inc.
+ * Author: Cliff Cai <cliff.cai@analog.com>
+ */
+
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/regulator/consumer.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/ac97_codec.h>
+#include <sound/initval.h>
+#include <sound/soc.h>
+
+static const struct snd_soc_dapm_widget wm8782_dapm_widgets[] = {
+SND_SOC_DAPM_INPUT("AINL"),
+SND_SOC_DAPM_INPUT("AINR"),
+};
+
+static const struct snd_soc_dapm_route wm8782_dapm_routes[] = {
+ { "Capture", NULL, "AINL" },
+ { "Capture", NULL, "AINR" },
+};
+
+static struct snd_soc_dai_driver wm8782_dai = {
+ .name = "wm8782",
+ .capture = {
+ .stream_name = "Capture",
+ .channels_min = 2,
+ .channels_max = 2,
+ /* For configurations with FSAMPEN=0 */
+ .rates = SNDRV_PCM_RATE_8000_48000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE |
+ SNDRV_PCM_FMTBIT_S20_3LE |
+ SNDRV_PCM_FMTBIT_S24_LE,
+ },
+};
+
+/* regulator power supply names */
+static const char *supply_names[] = {
+ "Vdda", /* analog supply, 2.7V - 3.6V */
+ "Vdd", /* digital supply, 2.7V - 5.5V */
+};
+
+struct wm8782_priv {
+ struct regulator_bulk_data supplies[ARRAY_SIZE(supply_names)];
+};
+
+static int wm8782_soc_probe(struct snd_soc_component *component)
+{
+ struct wm8782_priv *priv = snd_soc_component_get_drvdata(component);
+ return regulator_bulk_enable(ARRAY_SIZE(priv->supplies), priv->supplies);
+}
+
+static void wm8782_soc_remove(struct snd_soc_component *component)
+{
+ struct wm8782_priv *priv = snd_soc_component_get_drvdata(component);
+ regulator_bulk_disable(ARRAY_SIZE(priv->supplies), priv->supplies);
+}
+
+#ifdef CONFIG_PM
+static int wm8782_soc_suspend(struct snd_soc_component *component)
+{
+ struct wm8782_priv *priv = snd_soc_component_get_drvdata(component);
+ regulator_bulk_disable(ARRAY_SIZE(priv->supplies), priv->supplies);
+ return 0;
+}
+
+static int wm8782_soc_resume(struct snd_soc_component *component)
+{
+ struct wm8782_priv *priv = snd_soc_component_get_drvdata(component);
+ return regulator_bulk_enable(ARRAY_SIZE(priv->supplies), priv->supplies);
+}
+#else
+#define wm8782_soc_suspend NULL
+#define wm8782_soc_resume NULL
+#endif /* CONFIG_PM */
+
+static const struct snd_soc_component_driver soc_component_dev_wm8782 = {
+ .probe = wm8782_soc_probe,
+ .remove = wm8782_soc_remove,
+ .suspend = wm8782_soc_suspend,
+ .resume = wm8782_soc_resume,
+ .dapm_widgets = wm8782_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(wm8782_dapm_widgets),
+ .dapm_routes = wm8782_dapm_routes,
+ .num_dapm_routes = ARRAY_SIZE(wm8782_dapm_routes),
+ .idle_bias_on = 1,
+ .use_pmdown_time = 1,
+ .endianness = 1,
+};
+
+static int wm8782_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct wm8782_priv *priv;
+ int ret, i;
+
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ dev_set_drvdata(dev, priv);
+
+ for (i = 0; i < ARRAY_SIZE(supply_names); i++)
+ priv->supplies[i].supply = supply_names[i];
+
+ ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(priv->supplies),
+ priv->supplies);
+ if (ret < 0)
+ return ret;
+
+ return devm_snd_soc_register_component(&pdev->dev,
+ &soc_component_dev_wm8782, &wm8782_dai, 1);
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id wm8782_of_match[] = {
+ { .compatible = "wlf,wm8782", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, wm8782_of_match);
+#endif
+
+static struct platform_driver wm8782_codec_driver = {
+ .driver = {
+ .name = "wm8782",
+ .of_match_table = of_match_ptr(wm8782_of_match),
+ },
+ .probe = wm8782_probe,
+};
+
+module_platform_driver(wm8782_codec_driver);
+
+MODULE_DESCRIPTION("ASoC WM8782 driver");
+MODULE_AUTHOR("Johannes Stezenbach <js@sig21.net>");
+MODULE_LICENSE("GPL");