1 files changed, 147 insertions, 0 deletions
diff --git a/sound/soc/pxa/e750_wm9705.c b/sound/soc/pxa/e750_wm9705.c
new file mode 100644
index 000000000..7a1e0d8bf
--- /dev/null
+++ b/sound/soc/pxa/e750_wm9705.c
@@ -0,0 +1,147 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * e750-wm9705.c  --  SoC audio for e750
+ *
+ * Copyright 2007 (c) Ian Molton <spyro@f2s.com>
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/gpio/consumer.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+
+#include <linux/platform_data/asoc-pxa.h>
+
+#include <asm/mach-types.h>
+
+static struct gpio_desc *gpiod_spk_amp, *gpiod_hp_amp;
+
+static int e750_spk_amp_event(struct snd_soc_dapm_widget *w,
+				struct snd_kcontrol *kcontrol, int event)
+{
+	if (event & SND_SOC_DAPM_PRE_PMU)
+		gpiod_set_value(gpiod_spk_amp, 1);
+	else if (event & SND_SOC_DAPM_POST_PMD)
+		gpiod_set_value(gpiod_spk_amp, 0);
+
+	return 0;
+}
+
+static int e750_hp_amp_event(struct snd_soc_dapm_widget *w,
+				struct snd_kcontrol *kcontrol, int event)
+{
+	if (event & SND_SOC_DAPM_PRE_PMU)
+		gpiod_set_value(gpiod_hp_amp, 1);
+	else if (event & SND_SOC_DAPM_POST_PMD)
+		gpiod_set_value(gpiod_hp_amp, 0);
+
+	return 0;
+}
+
+static const struct snd_soc_dapm_widget e750_dapm_widgets[] = {
+	SND_SOC_DAPM_HP("Headphone Jack", NULL),
+	SND_SOC_DAPM_SPK("Speaker", NULL),
+	SND_SOC_DAPM_MIC("Mic (Internal)", NULL),
+	SND_SOC_DAPM_PGA_E("Headphone Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
+			e750_hp_amp_event, SND_SOC_DAPM_PRE_PMU |
+			SND_SOC_DAPM_POST_PMD),
+	SND_SOC_DAPM_PGA_E("Speaker Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
+			e750_spk_amp_event, SND_SOC_DAPM_PRE_PMU |
+			SND_SOC_DAPM_POST_PMD),
+};
+
+static const struct snd_soc_dapm_route audio_map[] = {
+	{"Headphone Amp", NULL, "HPOUTL"},
+	{"Headphone Amp", NULL, "HPOUTR"},
+	{"Headphone Jack", NULL, "Headphone Amp"},
+
+	{"Speaker Amp", NULL, "MONOOUT"},
+	{"Speaker", NULL, "Speaker Amp"},
+
+	{"MIC1", NULL, "Mic (Internal)"},
+};
+
+SND_SOC_DAILINK_DEFS(ac97,
+	DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97")),
+	DAILINK_COMP_ARRAY(COMP_CODEC("wm9705-codec", "wm9705-hifi")),
+	DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
+
+SND_SOC_DAILINK_DEFS(ac97_aux,
+	DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97-aux")),
+	DAILINK_COMP_ARRAY(COMP_CODEC("wm9705-codec", "wm9705-aux")),
+	DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
+
+static struct snd_soc_dai_link e750_dai[] = {
+	{
+		.name = "AC97",
+		.stream_name = "AC97 HiFi",
+		SND_SOC_DAILINK_REG(ac97),
+		/* use ops to check startup state */
+	},
+	{
+		.name = "AC97 Aux",
+		.stream_name = "AC97 Aux",
+		SND_SOC_DAILINK_REG(ac97_aux),
+	},
+};
+
+static struct snd_soc_card e750 = {
+	.name = "Toshiba e750",
+	.owner = THIS_MODULE,
+	.dai_link = e750_dai,
+	.num_links = ARRAY_SIZE(e750_dai),
+
+	.dapm_widgets = e750_dapm_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(e750_dapm_widgets),
+	.dapm_routes = audio_map,
+	.num_dapm_routes = ARRAY_SIZE(audio_map),
+	.fully_routed = true,
+};
+
+static int e750_probe(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = &e750;
+	int ret;
+
+	gpiod_hp_amp  = devm_gpiod_get(&pdev->dev, "Headphone amp", GPIOD_OUT_LOW);
+	ret = PTR_ERR_OR_ZERO(gpiod_hp_amp);
+	if (ret)
+		return ret;
+	gpiod_spk_amp  = devm_gpiod_get(&pdev->dev, "Speaker amp", GPIOD_OUT_LOW);
+	ret = PTR_ERR_OR_ZERO(gpiod_spk_amp);
+	if (ret)
+		return ret;
+
+	card->dev = &pdev->dev;
+
+	ret = devm_snd_soc_register_card(&pdev->dev, card);
+	if (ret)
+		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
+			ret);
+	return ret;
+}
+
+static int e750_remove(struct platform_device *pdev)
+{
+	return 0;
+}
+
+static struct platform_driver e750_driver = {
+	.driver		= {
+		.name	= "e750-audio",
+		.pm     = &snd_soc_pm_ops,
+	},
+	.probe		= e750_probe,
+	.remove		= e750_remove,
+};
+
+module_platform_driver(e750_driver);
+
+/* Module information */
+MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
+MODULE_DESCRIPTION("ALSA SoC driver for e750");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:e750-audio");