1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /* MCP23S08 SPI/I2C GPIO driver */
4 #include <linux/gpio/driver.h>
6 #include <linux/mutex.h>
7 #include <linux/pinctrl/pinctrl.h>
8 #include <linux/types.h>
11 * MCP types supported by driver
13 #define MCP_TYPE_S08 1
14 #define MCP_TYPE_S17 2
15 #define MCP_TYPE_008 3
16 #define MCP_TYPE_017 4
17 #define MCP_TYPE_S18 5
18 #define MCP_TYPE_018 6
25 struct mcp23s08_info {
26 const struct regmap_config *regmap;
43 /* lock protects regmap access with bypass/cache flags */
46 struct gpio_chip chip;
48 struct regmap *regmap;
51 struct pinctrl_dev *pctldev;
52 struct pinctrl_desc pinctrl_desc;
53 struct gpio_desc *reset_gpio;
56 extern const struct regmap_config mcp23x08_regmap;
57 extern const struct regmap_config mcp23x17_regmap;
59 int mcp23s08_probe_one(struct mcp23s08 *mcp, struct device *dev,
60 unsigned int addr, unsigned int type, unsigned int base);