1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */ 2*4882a593Smuzhiyun /* MCP23S08 SPI/I2C GPIO driver */ 3*4882a593Smuzhiyun 4*4882a593Smuzhiyun #include <linux/gpio/driver.h> 5*4882a593Smuzhiyun #include <linux/irq.h> 6*4882a593Smuzhiyun #include <linux/mutex.h> 7*4882a593Smuzhiyun #include <linux/pinctrl/pinctrl.h> 8*4882a593Smuzhiyun #include <linux/types.h> 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun /* 11*4882a593Smuzhiyun * MCP types supported by driver 12*4882a593Smuzhiyun */ 13*4882a593Smuzhiyun #define MCP_TYPE_S08 1 14*4882a593Smuzhiyun #define MCP_TYPE_S17 2 15*4882a593Smuzhiyun #define MCP_TYPE_008 3 16*4882a593Smuzhiyun #define MCP_TYPE_017 4 17*4882a593Smuzhiyun #define MCP_TYPE_S18 5 18*4882a593Smuzhiyun #define MCP_TYPE_018 6 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun struct device; 21*4882a593Smuzhiyun struct regmap; 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun struct pinctrl_dev; 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun struct mcp23s08 { 26*4882a593Smuzhiyun u8 addr; 27*4882a593Smuzhiyun bool irq_active_high; 28*4882a593Smuzhiyun bool reg_shift; 29*4882a593Smuzhiyun 30*4882a593Smuzhiyun u16 irq_rise; 31*4882a593Smuzhiyun u16 irq_fall; 32*4882a593Smuzhiyun int irq; 33*4882a593Smuzhiyun bool irq_controller; 34*4882a593Smuzhiyun int cached_gpio; 35*4882a593Smuzhiyun /* lock protects regmap access with bypass/cache flags */ 36*4882a593Smuzhiyun struct mutex lock; 37*4882a593Smuzhiyun 38*4882a593Smuzhiyun struct gpio_chip chip; 39*4882a593Smuzhiyun struct irq_chip irq_chip; 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun struct regmap *regmap; 42*4882a593Smuzhiyun struct device *dev; 43*4882a593Smuzhiyun 44*4882a593Smuzhiyun struct pinctrl_dev *pctldev; 45*4882a593Smuzhiyun struct pinctrl_desc pinctrl_desc; 46*4882a593Smuzhiyun }; 47*4882a593Smuzhiyun 48*4882a593Smuzhiyun extern const struct regmap_config mcp23x08_regmap; 49*4882a593Smuzhiyun extern const struct regmap_config mcp23x17_regmap; 50*4882a593Smuzhiyun 51*4882a593Smuzhiyun int mcp23s08_probe_one(struct mcp23s08 *mcp, struct device *dev, 52*4882a593Smuzhiyun unsigned int addr, unsigned int type, unsigned int base); 53