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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /sound/soc/codecs/ak4554.c
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'sound/soc/codecs/ak4554.c')
-rw-r--r--sound/soc/codecs/ak4554.c96
1 files changed, 96 insertions, 0 deletions
diff --git a/sound/soc/codecs/ak4554.c b/sound/soc/codecs/ak4554.c
new file mode 100644
index 0000000000..b9607de5a1
--- /dev/null
+++ b/sound/soc/codecs/ak4554.c
@@ -0,0 +1,96 @@
+// SPDX-License-Identifier: GPL-2.0
+// ak4554.c
+//
+// Copyright (C) 2013 Renesas Solutions Corp.
+// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+
+#include <linux/module.h>
+#include <sound/soc.h>
+
+/*
+ * ak4554 is very simple DA/AD converter which has no setting register.
+ *
+ * CAUTION
+ *
+ * ak4554 playback format is SND_SOC_DAIFMT_RIGHT_J,
+ * and, capture format is SND_SOC_DAIFMT_LEFT_J
+ * on same bit clock, LR clock.
+ * But, this driver doesn't have snd_soc_dai_ops :: set_fmt
+ *
+ * CPU/Codec DAI image
+ *
+ * CPU-DAI1 (plaback only fmt = RIGHT_J) --+-- ak4554
+ * |
+ * CPU-DAI2 (capture only fmt = LEFT_J) ---+
+ */
+
+static const struct snd_soc_dapm_widget ak4554_dapm_widgets[] = {
+SND_SOC_DAPM_INPUT("AINL"),
+SND_SOC_DAPM_INPUT("AINR"),
+
+SND_SOC_DAPM_OUTPUT("AOUTL"),
+SND_SOC_DAPM_OUTPUT("AOUTR"),
+};
+
+static const struct snd_soc_dapm_route ak4554_dapm_routes[] = {
+ { "Capture", NULL, "AINL" },
+ { "Capture", NULL, "AINR" },
+
+ { "AOUTL", NULL, "Playback" },
+ { "AOUTR", NULL, "Playback" },
+};
+
+static struct snd_soc_dai_driver ak4554_dai = {
+ .name = "ak4554-hifi",
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_48000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
+ .capture = {
+ .stream_name = "Capture",
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_48000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
+ .symmetric_rate = 1,
+};
+
+static const struct snd_soc_component_driver soc_component_dev_ak4554 = {
+ .dapm_widgets = ak4554_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(ak4554_dapm_widgets),
+ .dapm_routes = ak4554_dapm_routes,
+ .num_dapm_routes = ARRAY_SIZE(ak4554_dapm_routes),
+ .idle_bias_on = 1,
+ .use_pmdown_time = 1,
+ .endianness = 1,
+};
+
+static int ak4554_soc_probe(struct platform_device *pdev)
+{
+ return devm_snd_soc_register_component(&pdev->dev,
+ &soc_component_dev_ak4554,
+ &ak4554_dai, 1);
+}
+
+static const struct of_device_id ak4554_of_match[] = {
+ { .compatible = "asahi-kasei,ak4554" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, ak4554_of_match);
+
+static struct platform_driver ak4554_driver = {
+ .driver = {
+ .name = "ak4554-adc-dac",
+ .of_match_table = ak4554_of_match,
+ },
+ .probe = ak4554_soc_probe,
+};
+module_platform_driver(ak4554_driver);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("SoC AK4554 driver");
+MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");