1 files changed, 140 insertions, 0 deletions
diff --git a/include/linux/mfd/wm8994/core.h b/include/linux/mfd/wm8994/core.h
new file mode 100644
index 000000000..e8b093522
--- /dev/null
+++ b/include/linux/mfd/wm8994/core.h
@@ -0,0 +1,140 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * include/linux/mfd/wm8994/core.h -- Core interface for WM8994
+ *
+ * Copyright 2009 Wolfson Microelectronics PLC.
+ *
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ */
+
+#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