ASoC: Add WM5100 driver

The WM5100 is a highly integrated low power audio subsystem with advanced
digital signal processing capabilities including effects, speech clarity
enhancement and active noise cancellation.  This initial driver provides
support for basic audio paths, further patches will provide more
complete functionality.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>

1 files changed, 59 insertions, 0 deletions

diff --git a/include/sound/wm5100.h b/include/sound/wm5100.h
new file mode 100644
index 0000000..617d0c4
--- /dev/null
+++ b/include/sound/wm5100.h
@@ -0,0 +1,59 @@
+/*
+ * linux/sound/wm5100.h -- Platform data for WM5100
+ *
+ * Copyright 2011 Wolfson Microelectronics. PLC.
+ *
+ * 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.
+ */
+
+#ifndef __LINUX_SND_WM5100_H
+#define __LINUX_SND_WM5100_H
+
+enum wm5100_in_mode {
+	WM5100_IN_SE = 0,
+	WM5100_IN_DIFF = 1,
+	WM5100_IN_DMIC = 2,
+};
+
+enum wm5100_dmic_sup {
+	WM5100_DMIC_SUP_MICVDD = 0,
+	WM5100_DMIC_SUP_MICBIAS1 = 1,
+	WM5100_DMIC_SUP_MICBIAS2 = 2,
+	WM5100_DMIC_SUP_MICBIAS3 = 3,
+};
+
+enum wm5100_micdet_bias {
+	WM5100_MICDET_MICBIAS1 = 0,
+	WM5100_MICDET_MICBIAS2 = 1,
+	WM5100_MICDET_MICBIAS3 = 2,
+};
+
+struct wm5100_jack_mode {
+	enum wm5100_micdet_bias bias;
+	int hp_pol;
+	int micd_src;
+};
+
+#define WM5100_GPIO_SET 0x10000
+
+struct wm5100_pdata {
+	int reset;      /** GPIO controlling /RESET, if any */
+	int ldo_ena;    /** GPIO controlling LODENA, if any */
+	int hp_pol;     /** GPIO controlling headset polarity, if any */
+	int irq_flags;
+	int gpio_base;
+
+	struct wm5100_jack_mode jack_modes[2];
+
+	/* Input pin mode selection */
+	enum wm5100_in_mode in_mode[4];
+
+	/* DMIC supply selection */
+	enum wm5100_dmic_sup dmic_sup[4];
+
+	int gpio_defaults[6];
+};
+
+#endif