This adds a simple machine driver using the Wolfson wm9712 AC97
codec.
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@xxxxxxxxxxx>
Signed-off-by: Lucas Stach <dev@xxxxxxxxxx>
---
.../bindings/sound/nvidia,tegra-audio-wm9712.txt | 53 +++++++
sound/soc/tegra/Kconfig | 10 ++
sound/soc/tegra/Makefile | 2 +
sound/soc/tegra/tegra_wm9712.c | 167 +++++++++++++++++++++
4 Dateien geändert, 232 Zeilen hinzugefügt(+)
create mode 100644 Documentation/devicetree/bindings/sound/nvidia,tegra-audio-wm9712.txt
create mode 100644 sound/soc/tegra/tegra_wm9712.c
diff --git a/Documentation/devicetree/bindings/sound/nvidia,tegra-audio-wm9712.txt b/Documentation/devicetree/bindings/sound/nvidia,tegra-audio-wm9712.txt
new file mode 100644
index 0000000..72bd589
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/nvidia,tegra-audio-wm9712.txt
@@ -0,0 +1,53 @@
+NVIDIA Tegra audio complex
+
+Required properties:
+- compatible : "nvidia,tegra-audio-wm9712"
+- nvidia,model : The user-visible name of this sound complex.
+- nvidia,audio-routing : A list of the connections between audio components.
+ Each entry is a pair of strings, the first being the connection's sink,
+ the second being the connection's source. Valid names for sources and
+ sinks are the WM9712's pins, and the jacks on the board:
+
+ WM9712 pins:
+
+ * MONOOUT
+ * HPOUTL
+ * HPOUTR
+ * LOUT2
+ * ROUT2
+ * OUT3
+ * LINEINL
+ * LINEINR
+ * PHONE
+ * PCBEEP
+ * MIC1
+ * MIC2
+ * Mic Bias
+
+ Board connectors:
+
+ * Headphone
+ * LineIn
+ * Mic
+
+- nvidia,ac97-controller : The phandle of the Tegra AC97 controller
+- nvidia,audio-codec : The phandle of the WM9712 audio codec
+
+
+Example:
+
+sound {
+ compatible = "nvidia,tegra-audio-wm9712-colibri_t20",
+ "nvidia,tegra-audio-wm9712";
+ nvidia,model = "Toradex Colibri T20";
+
+ nvidia,audio-routing =
+ "Headphone", "HPOUTL",
+ "Headphone", "HPOUTR",
+ "LineIn", "LINEINL",
+ "LineIn", "LINEINR",
+ "Mic", "MIC1";
+
+ nvidia,ac97-controller = <&ac97>;
+ nvidia,audio-codec = <&wm9712>;
+};
diff --git a/sound/soc/tegra/Kconfig b/sound/soc/tegra/Kconfig
index 763c68d..0d62025 100644
--- a/sound/soc/tegra/Kconfig
+++ b/sound/soc/tegra/Kconfig
@@ -78,6 +78,16 @@ config SND_SOC_TEGRA_WM8903
boards using the WM8093 codec. Currently, the supported boards are
Harmony, Ventana, Seaboard, Kaen, and Aebl.
+config SND_SOC_TEGRA_WM9712
+ tristate "SoC Audio support for Tegra boards using a WM9712 codec"
+ depends on SND_SOC_TEGRA
+ select SND_SOC_TEGRA20_AC97 if ARCH_TEGRA_2x_SOC
+ select SND_SOC_AC97_BUS
+ select SND_SOC_WM9712
+ help
+ Say Y or M here if you want to add support for SoC audio on Tegra
+ boards using the WM9712 (or compatible) codec.
+
config SND_SOC_TEGRA_TRIMSLICE
tristate "SoC Audio support for TrimSlice board"
depends on SND_SOC_TEGRA && I2C
diff --git a/sound/soc/tegra/Makefile b/sound/soc/tegra/Makefile
index 02513d9..416a14b 100644
--- a/sound/soc/tegra/Makefile
+++ b/sound/soc/tegra/Makefile
@@ -20,10 +20,12 @@ obj-$(CONFIG_SND_SOC_TEGRA30_I2S) += snd-soc-tegra30-i2s.o
# Tegra machine Support
snd-soc-tegra-wm8753-objs := tegra_wm8753.o
snd-soc-tegra-wm8903-objs := tegra_wm8903.o
+snd-soc-tegra-wm9712-objs := tegra_wm9712.o
snd-soc-tegra-trimslice-objs := trimslice.o
snd-soc-tegra-alc5632-objs := tegra_alc5632.o
obj-$(CONFIG_SND_SOC_TEGRA_WM8753) += snd-soc-tegra-wm8753.o
obj-$(CONFIG_SND_SOC_TEGRA_WM8903) += snd-soc-tegra-wm8903.o
+obj-$(CONFIG_SND_SOC_TEGRA_WM9712) += snd-soc-tegra-wm9712.o
obj-$(CONFIG_SND_SOC_TEGRA_TRIMSLICE) += snd-soc-tegra-trimslice.o
obj-$(CONFIG_SND_SOC_TEGRA_ALC5632) += snd-soc-tegra-alc5632.o
diff --git a/sound/soc/tegra/tegra_wm9712.c b/sound/soc/tegra/tegra_wm9712.c
new file mode 100644
index 0000000..2e9b588
--- /dev/null
+++ b/sound/soc/tegra/tegra_wm9712.c
@@ -0,0 +1,167 @@
+/*
+ * tegra20_wm9712.c - Tegra machine ASoC driver for boards using WM9712 codec.
+ *
+ * Copyright 2012 Lucas Stach <dev@xxxxxxxxxx>
+ *
+ * Partly based on code copyright/by:
+ * Copyright 2011,2012 Toradex Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/gpio.h>
+#include <linux/of_gpio.h>
+
+#include <sound/core.h>
+#include <sound/jack.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#define DRV_NAME "tegra-snd-wm9712"
+
+static const struct snd_soc_dapm_widget tegra_wm9712_dapm_widgets[] = {
+ SND_SOC_DAPM_HP("Headphone", NULL),
+ SND_SOC_DAPM_LINE("LineIn", NULL),
+ SND_SOC_DAPM_MIC("Mic", NULL),
+};
+
+static int tegra_wm9712_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+ struct snd_soc_codec *codec = codec_dai->codec;
+ struct snd_soc_dapm_context *dapm = &codec->dapm;
+ int err;
+
+ snd_soc_dapm_force_enable_pin(dapm, "Mic Bias");
+
+ err = snd_soc_dapm_sync(dapm);
+ if (err)
+ return err;
+
+ return 0;
+}
+
+static int tegra_wm9712_remove(struct snd_soc_card *card)
+{
+ return 0;
+}
+
+static struct snd_soc_dai_link tegra_wm9712_dai = {
+ .name = "AC97 HiFi",
+ .stream_name = "AC97 HiFi",
+ .cpu_dai_name = "tegra-ac97-pcm",
+ .codec_dai_name = "wm9712-hifi",
+ .init = tegra_wm9712_init,
+};
+
+static struct snd_soc_card snd_soc_tegra_wm9712 = {
+ .name = "tegra-wm9712",
+ .owner = THIS_MODULE,
+ .dai_link = &tegra_wm9712_dai,
+ .num_links = 1,
+
+ .remove = tegra_wm9712_remove,
+
+ .dapm_widgets = tegra_wm9712_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(tegra_wm9712_dapm_widgets),
+ .fully_routed = true,
+};
+
+static int tegra_wm9712_driver_probe(struct platform_device *pdev)
+{
+ struct device_node *np = pdev->dev.of_node;
+ struct snd_soc_card *card = &snd_soc_tegra_wm9712;
+ int ret;
+
+ if (!pdev->dev.of_node) {
+ dev_err(&pdev->dev, "No platform data supplied\n");
+ return -EINVAL;
+ }
+
+ card->dev = &pdev->dev;
+ platform_set_drvdata(pdev, card);
+
+ ret = snd_soc_of_parse_card_name(card, "nvidia,model");
+ if (ret)
+ goto err;
+
+ ret = snd_soc_of_parse_audio_routing(card, "nvidia,audio-routing");
+ if (ret)
+ goto err;
+
+ tegra_wm9712_dai.codec_of_node = of_parse_phandle(np,
+ "nvidia,audio-codec", 0);
+ if (!tegra_wm9712_dai.codec_of_node) {
+ dev_err(&pdev->dev,
+ "Property 'nvidia,audio-codec' missing or invalid\n");
+ ret = -EINVAL;
+ goto err;
+ }
+
+ tegra_wm9712_dai.cpu_of_node = of_parse_phandle(np,
+ "nvidia,ac97-controller", 0);
+ if (!tegra_wm9712_dai.cpu_of_node) {
+ dev_err(&pdev->dev,
+ "Property 'nvidia,ac97-controller' missing or invalid\n");
+ ret = -EINVAL;
+ goto err;
+ }
+
+ tegra_wm9712_dai.platform_of_node = tegra_wm9712_dai.cpu_of_node;
+
+ ret = snd_soc_register_card(card);
+ if (ret) {
+ dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
+ ret);
+ goto err;
+ }
+
+ return 0;
+
+err:
+ return ret;
+}
+
+static int tegra_wm9712_driver_remove(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+ snd_soc_unregister_card(card);
+
+ return 0;
+}
+
+static const struct of_device_id tegra_wm9712_of_match[] __devinitconst = {
+ { .compatible = "nvidia,tegra-audio-wm9712", },
+ {},
+};
+
+static struct platform_driver tegra_wm9712_driver = {
+ .driver = {
+ .name = DRV_NAME,
+ .owner = THIS_MODULE,
+ .pm = &snd_soc_pm_ops,
+ .of_match_table = tegra_wm9712_of_match,
+ },
+ .probe = tegra_wm9712_driver_probe,
+ .remove = tegra_wm9712_driver_remove,
+};
+module_platform_driver(tegra_wm9712_driver);
+
+MODULE_AUTHOR("Lucas Stach");
+MODULE_DESCRIPTION("Tegra+WM9712 machine ASoC driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRV_NAME);
+MODULE_DEVICE_TABLE(of, tegra_wm9712_of_match);
--
1.7.11.7
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