Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / include / linux / mfd / wm8994 / core.h

diff --git a/kernel/include/linux/mfd/wm8994/core.h b/kernel/include/linux/mfd/wm8994/core.h
new file mode 100644 (file)
index 0000000..eefafa6
--- /dev/null
+++ b/kernel/include/linux/mfd/wm8994/core.h
@@ -0,0 +1,145 @@
+/*
+ * include/linux/mfd/wm8994/core.h -- Core interface for WM8994
+ *
+ * Copyright 2009 Wolfson Microelectronics PLC.
+ *
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ */
+
+#ifndef __MFD_WM8994_CORE_H__
+#define __MFD_WM8994_CORE_H__
+
+#include <linux/mutex.h>
+#include <linux/interrupt.h>
+#include <linux/regmap.h>
+
+#include <linux/mfd/wm8994/pdata.h>
+
+enum wm8994_type {
+       WM8994 = 0,
+       WM8958 = 1,
+       WM1811 = 2,
+};
+
+struct regulator_dev;
+struct regulator_bulk_data;
+struct irq_domain;
+
+#define WM8994_NUM_GPIO_REGS 11
+#define WM8994_NUM_LDO_REGS   2
+#define WM8994_NUM_IRQ_REGS   2
+
+#define WM8994_IRQ_TEMP_SHUT           0
+#define WM8994_IRQ_MIC1_DET            1
+#define WM8994_IRQ_MIC1_SHRT           2
+#define WM8994_IRQ_MIC2_DET            3
+#define WM8994_IRQ_MIC2_SHRT           4
+#define WM8994_IRQ_FLL1_LOCK           5
+#define WM8994_IRQ_FLL2_LOCK           6
+#define WM8994_IRQ_SRC1_LOCK           7
+#define WM8994_IRQ_SRC2_LOCK           8
+#define WM8994_IRQ_AIF1DRC1_SIG_DET    9
+#define WM8994_IRQ_AIF1DRC2_SIG_DET    10
+#define WM8994_IRQ_AIF2DRC_SIG_DET     11
+#define WM8994_IRQ_FIFOS_ERR           12
+#define WM8994_IRQ_WSEQ_DONE           13
+#define WM8994_IRQ_DCS_DONE            14
+#define WM8994_IRQ_TEMP_WARN           15
+
+/* GPIOs in the chip are numbered from 1-11 */
+#define WM8994_IRQ_GPIO(x) (x + WM8994_IRQ_TEMP_WARN)
+
+struct wm8994 {
+       struct wm8994_pdata pdata;
+
+       enum wm8994_type type;
+       int revision;
+       int cust_id;
+
+       struct device *dev;
+       struct regmap *regmap;
+
+       bool ldo_ena_always_driven;
+
+       int gpio_base;
+       int irq_base;
+
+       int irq;
+       struct regmap_irq_chip_data *irq_data;
+       struct irq_domain *edge_irq;
+
+       /* Used over suspend/resume */
+       bool suspended;
+
+       struct regulator_dev *dbvdd;
+       int num_supplies;
+       struct regulator_bulk_data *supplies;
+};
+
+/* Device I/O API */
+
+static inline int wm8994_reg_read(struct wm8994 *wm8994, unsigned short reg)
+{
+       unsigned int val;
+       int ret;
+
+       ret = regmap_read(wm8994->regmap, reg, &val);
+
+       if (ret < 0)
+               return ret;
+       else
+               return val;
+}
+
+static inline int wm8994_reg_write(struct wm8994 *wm8994, unsigned short reg,
+                                  unsigned short val)
+{
+       return regmap_write(wm8994->regmap, reg, val);
+}
+
+static inline int wm8994_bulk_read(struct wm8994 *wm8994, unsigned short reg,
+                                  int count, u16 *buf)
+{
+       return regmap_bulk_read(wm8994->regmap, reg, buf, count);
+}
+
+static inline int wm8994_bulk_write(struct wm8994 *wm8994, unsigned short reg,
+                                   int count, const u16 *buf)
+{
+       return regmap_raw_write(wm8994->regmap, reg, buf, count * sizeof(u16));
+}
+
+static inline int wm8994_set_bits(struct wm8994 *wm8994, unsigned short reg,
+                   unsigned short mask, unsigned short val)
+{
+       return regmap_update_bits(wm8994->regmap, reg, mask, val);
+}
+
+/* Helper to save on boilerplate */
+static inline int wm8994_request_irq(struct wm8994 *wm8994, int irq,
+                                    irq_handler_t handler, const char *name,
+                                    void *data)
+{
+       if (!wm8994->irq_data)
+               return -EINVAL;
+       return request_threaded_irq(regmap_irq_get_virq(wm8994->irq_data, irq),
+                                   NULL, handler, IRQF_TRIGGER_RISING, name,
+                                   data);
+}
+static inline void wm8994_free_irq(struct wm8994 *wm8994, int irq, void *data)
+{
+       if (!wm8994->irq_data)
+               return;
+       free_irq(regmap_irq_get_virq(wm8994->irq_data, irq), data);
+}
+
+int wm8994_irq_init(struct wm8994 *wm8994);
+void wm8994_irq_exit(struct wm8994 *wm8994);
+
+#endif