diff options
author | Len Brown <len.brown@intel.com> | 2011-03-23 02:34:54 -0400 |
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committer | Len Brown <len.brown@intel.com> | 2011-03-23 02:34:54 -0400 |
commit | 02e2407858fd62053bf60349c0e72cd1c7a4a60e (patch) | |
tree | 0ebdbddc97d3abbc675916010e7771065b70c137 /include/linux/spi/mcp23s08.h | |
parent | 96e1c408ea8a556c5b51e0e7d56bd2afbfbf5fe9 (diff) | |
parent | 6447f55da90b77faec1697d499ed7986bb4f6de6 (diff) |
Merge branch 'linus' into release
Conflicts:
arch/x86/kernel/acpi/sleep.c
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'include/linux/spi/mcp23s08.h')
-rw-r--r-- | include/linux/spi/mcp23s08.h | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/include/linux/spi/mcp23s08.h b/include/linux/spi/mcp23s08.h index 22ef107d770..c42cff8ca19 100644 --- a/include/linux/spi/mcp23s08.h +++ b/include/linux/spi/mcp23s08.h @@ -2,21 +2,24 @@ /* FIXME driver should be able to handle IRQs... */ struct mcp23s08_chip_info { - bool is_present; /* true iff populated */ - u8 pullups; /* BIT(x) means enable pullup x */ + bool is_present; /* true if populated */ + unsigned pullups; /* BIT(x) means enable pullup x */ }; struct mcp23s08_platform_data { - /* Four slaves (numbered 0..3) can share one SPI chipselect, and - * will provide 8..32 GPIOs using 1..4 gpio_chip instances. + /* 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[4]; + 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. + * base to base+15 (or base+31 for s17 variant). */ unsigned base; |