1 files changed, 52 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinctrl-mcp23s08.h b/drivers/pinctrl/pinctrl-mcp23s08.h
new file mode 100644
index 000000000000..90dc27081a3c
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-mcp23s08.h
@@ -0,0 +1,52 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* MCP23S08 SPI/I2C GPIO driver */
+
+#include <linux/gpio/driver.h>
+#include <linux/irq.h>
+#include <linux/mutex.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/types.h>
+
+/*
+ * MCP types supported by driver
+ */
+#define MCP_TYPE_S08	1
+#define MCP_TYPE_S17	2
+#define MCP_TYPE_008	3
+#define MCP_TYPE_017	4
+#define MCP_TYPE_S18	5
+#define MCP_TYPE_018	6
+
+struct device;
+struct regmap;
+
+struct pinctrl_dev;
+
+struct mcp23s08 {
+	u8			addr;
+	bool			irq_active_high;
+	bool			reg_shift;
+
+	u16			irq_rise;
+	u16			irq_fall;
+	int			irq;
+	bool			irq_controller;
+	int			cached_gpio;
+	/* lock protects regmap access with bypass/cache flags */
+	struct mutex		lock;
+
+	struct gpio_chip	chip;
+	struct irq_chip		irq_chip;
+
+	struct regmap		*regmap;
+	struct device		*dev;
+
+	struct pinctrl_dev	*pctldev;
+	struct pinctrl_desc	pinctrl_desc;
+};
+
+extern const struct regmap_config mcp23x08_regmap;
+extern const struct regmap_config mcp23x17_regmap;
+
+int mcp23s08_probe_one(struct mcp23s08 *mcp, struct device *dev,
+		       unsigned int addr, unsigned int type, unsigned int base);