1 files changed, 97 insertions, 0 deletions
diff --git a/drivers/usb/isp1760/isp1760-core.h b/drivers/usb/isp1760/isp1760-core.h
new file mode 100644
index 000000000..91e0ee399
--- /dev/null
+++ b/drivers/usb/isp1760/isp1760-core.h
@@ -0,0 +1,97 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Driver for the NXP ISP1760 chip
+ *
+ * Copyright 2021 Linaro, Rui Miguel Silva
+ * Copyright 2014 Laurent Pinchart
+ * Copyright 2007 Sebastian Siewior
+ *
+ * Contacts:
+ *	Sebastian Siewior <bigeasy@linutronix.de>
+ *	Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+ *	Rui Miguel Silva <rui.silva@linaro.org>
+ */
+
+#ifndef _ISP1760_CORE_H_
+#define _ISP1760_CORE_H_
+
+#include <linux/ioport.h>
+#include <linux/regmap.h>
+
+#include "isp1760-hcd.h"
+#include "isp1760-udc.h"
+
+struct device;
+struct gpio_desc;
+
+/*
+ * Device flags that can vary from board to board.  All of these
+ * indicate the most "atypical" case, so that a devflags of 0 is
+ * a sane default configuration.
+ */
+#define ISP1760_FLAG_BUS_WIDTH_16	0x00000002 /* 16-bit data bus width */
+#define ISP1760_FLAG_PERIPHERAL_EN	0x00000004 /* Port 1 supports Peripheral mode*/
+#define ISP1760_FLAG_ANALOG_OC		0x00000008 /* Analog overcurrent */
+#define ISP1760_FLAG_DACK_POL_HIGH	0x00000010 /* DACK active high */
+#define ISP1760_FLAG_DREQ_POL_HIGH	0x00000020 /* DREQ active high */
+#define ISP1760_FLAG_ISP1761		0x00000040 /* Chip is ISP1761 */
+#define ISP1760_FLAG_INTR_POL_HIGH	0x00000080 /* Interrupt polarity active high */
+#define ISP1760_FLAG_INTR_EDGE_TRIG	0x00000100 /* Interrupt edge triggered */
+#define ISP1760_FLAG_ISP1763		0x00000200 /* Chip is ISP1763 */
+#define ISP1760_FLAG_BUS_WIDTH_8	0x00000400 /* 8-bit data bus width */
+
+struct isp1760_device {
+	struct device *dev;
+
+	unsigned int devflags;
+	struct gpio_desc *rst_gpio;
+
+	struct isp1760_hcd hcd;
+	struct isp1760_udc udc;
+};
+
+int isp1760_register(struct resource *mem, int irq, unsigned long irqflags,
+		     struct device *dev, unsigned int devflags);
+void isp1760_unregister(struct device *dev);
+
+void isp1760_set_pullup(struct isp1760_device *isp, bool enable);
+
+static inline u32 isp1760_field_read(struct regmap_field **fields, u32 field)
+{
+	unsigned int val;
+
+	regmap_field_read(fields[field], &val);
+
+	return val;
+}
+
+static inline void isp1760_field_write(struct regmap_field **fields, u32 field,
+				       u32 val)
+{
+	regmap_field_write(fields[field], val);
+}
+
+static inline void isp1760_field_set(struct regmap_field **fields, u32 field)
+{
+	isp1760_field_write(fields, field, 0xFFFFFFFF);
+}
+
+static inline void isp1760_field_clear(struct regmap_field **fields, u32 field)
+{
+	isp1760_field_write(fields, field, 0);
+}
+
+static inline u32 isp1760_reg_read(struct regmap *regs, u32 reg)
+{
+	unsigned int val;
+
+	regmap_read(regs, reg, &val);
+
+	return val;
+}
+
+static inline void isp1760_reg_write(struct regmap *regs, u32 reg, u32 val)
+{
+	regmap_write(regs, reg, val);
+}
+#endif