/* FIXME driver should be able to handle IRQs... */ struct mcp23s08_chip_info { bool is_present; /* true if populated */ unsigned pullups; /* BIT(x) means enable pullup x */ }; struct mcp23s08_platform_data { /* For mcp23s08, up to 4 slaves (numbered 0..3) can share one SPI * chipselect, each providing 1 gpio_chip instance with 8 gpios. * For mpc23s17, up to 8 slaves (numbered 0..7) can share one SPI * chipselect, each providing 1 gpio_chip (port A + port B) with * 16 gpios. */ struct mcp23s08_chip_info chip[8]; /* "base" is the number of the first GPIO. Dynamic assignment is * not currently supported, and even if there are gaps in chip * addressing the GPIO numbers are sequential .. so for example * if only slaves 0 and 3 are present, their GPIOs range from * base to base+15 (or base+31 for s17 variant). */ unsigned base; /* Marks the device as a interrupt controller. * NOTE: The interrupt functionality is only supported for i2c * versions of the chips. The spi chips can also do the interrupts, * but this is not supported by the linux driver yet. */ bool irq_controller; /* Sets the mirror flag in the IOCON register. Devices * with two interrupt outputs (these are the devices ending with 17 and * those that have 16 IOs) have two IO banks: IO 0-7 form bank 1 and * IO 8-15 are bank 2. These chips have two different interrupt outputs: * One for bank 1 and another for bank 2. If irq-mirror is set, both * interrupts are generated regardless of the bank that an input change * occurred on. If it is not set, the interrupt are only generated for * the bank they belong to. * On devices with only one interrupt output this property is useless. */ bool mirror; };Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| David Brownell | 26 | 66.67% | 2 | 50.00% |
| Sonic Zhang | 8 | 20.51% | 1 | 25.00% |
| Peter Korsgaard | 5 | 12.82% | 1 | 25.00% |
| Total | 39 | 100.00% | 4 | 100.00% |