diff options
Diffstat (limited to 'include/linux/spi/mcp23s08.h')
| -rw-r--r-- | include/linux/spi/mcp23s08.h | 38 |
1 files changed, 6 insertions, 32 deletions
diff --git a/include/linux/spi/mcp23s08.h b/include/linux/spi/mcp23s08.h index aa07d7b32568..82d96a346e6f 100644 --- a/include/linux/spi/mcp23s08.h +++ b/include/linux/spi/mcp23s08.h @@ -1,11 +1,3 @@ - -/* 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. @@ -13,31 +5,13 @@ struct mcp23s08_platform_data { * chipselect, each providing 1 gpio_chip (port A + port B) with * 16 gpios. */ - struct mcp23s08_chip_info chip[8]; + u32 spi_present_mask; - /* "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). + /* "base" is the number of the first GPIO or -1 for dynamic + * assignment. 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; }; |