drivers/pinctrl/pinctrl-mcp23s08.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /* MCP23S08 SPI/I2C GPIO driver */
   3
   4 #include <linux/gpio/driver.h>
   5 #include <linux/irq.h>
   6 #include <linux/mutex.h>
   7 #include <linux/pinctrl/pinctrl.h>
   8 #include <linux/types.h>
   9
  10 /*
  11  * MCP types supported by driver
  12  */
  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
  19
  20 struct device;
  21 struct regmap;
  22
  23 struct pinctrl_dev;
  24
  25 struct mcp23s08_info {
  26         const struct regmap_config *regmap;
  27         const char *label;
  28         unsigned int type;
  29         u16 ngpio;
  30         bool reg_shift;
  31 };
  32
  33 struct mcp23s08 {
  34         u8                      addr;
  35         bool                    irq_active_high;
  36         bool                    reg_shift;
  37
  38         u16                     irq_rise;
  39         u16                     irq_fall;
  40         int                     irq;
  41         bool                    irq_controller;
  42         int                     cached_gpio;
  43         /* lock protects regmap access with bypass/cache flags */
  44         struct mutex            lock;
  45
  46         struct gpio_chip        chip;
  47
  48         struct regmap           *regmap;
  49         struct device           *dev;
  50
  51         struct pinctrl_dev      *pctldev;
  52         struct pinctrl_desc     pinctrl_desc;
  53         struct gpio_desc        *reset_gpio;
  54 };
  55
  56 extern const struct regmap_config mcp23x08_regmap;
  57 extern const struct regmap_config mcp23x17_regmap;
  58
  59 int mcp23s08_probe_one(struct mcp23s08 *mcp, struct device *dev,
  60                        unsigned int addr, unsigned int type, unsigned int base);