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53 lines
1.1 KiB
53 lines
1.1 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* MCP23S08 SPI/I2C GPIO driver */ |
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#include <linux/gpio/driver.h> |
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#include <linux/irq.h> |
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#include <linux/mutex.h> |
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#include <linux/pinctrl/pinctrl.h> |
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#include <linux/types.h> |
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/* |
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* MCP types supported by driver |
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*/ |
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#define MCP_TYPE_S08 1 |
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#define MCP_TYPE_S17 2 |
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#define MCP_TYPE_008 3 |
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#define MCP_TYPE_017 4 |
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#define MCP_TYPE_S18 5 |
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#define MCP_TYPE_018 6 |
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struct device; |
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struct regmap; |
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struct pinctrl_dev; |
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struct mcp23s08 { |
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u8 addr; |
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bool irq_active_high; |
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bool reg_shift; |
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u16 irq_rise; |
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u16 irq_fall; |
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int irq; |
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bool irq_controller; |
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int cached_gpio; |
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/* lock protects regmap access with bypass/cache flags */ |
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struct mutex lock; |
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struct gpio_chip chip; |
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struct irq_chip irq_chip; |
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struct regmap *regmap; |
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struct device *dev; |
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struct pinctrl_dev *pctldev; |
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struct pinctrl_desc pinctrl_desc; |
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struct gpio_desc *reset_gpio; |
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}; |
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extern const struct regmap_config mcp23x08_regmap; |
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extern const struct regmap_config mcp23x17_regmap; |
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int mcp23s08_probe_one(struct mcp23s08 *mcp, struct device *dev, |
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unsigned int addr, unsigned int type, unsigned int base);
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