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path: root/drivers/gpio/gpio-mcp23s08.c
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* drivers/gpio: Fix drivers who are implicit users of module.hPaul Gortmaker2011-10-311-0/+1
| | | | | | | | A pending cleanup will mean that module.h won't be implicitly everywhere anymore. Make sure the modular drivers in gpio are actually calling out for <module.h> explicitly in advance. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* mcp23s08: add i2c supportPeter Korsgaard2011-07-151-5/+187
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add i2c bindings for the mcp230xx devices. This is quite a lot simpler than the spi one as there's no funky sub addressing done (one struct i2c_client per struct gpio_chip). The mcp23s08_platform_data structure is reused for i2c, even though only a single mcp23s08_chip_info structure is needed. To use, simply fill out a platform_data structure and pass it in i2c_board_info, E.G.: static const struct mcp23s08_platform_data mcp23017_data = { .chip[0] = { .pullups = 0x00ff, }, .base = 240, }; static struct i2c_board_info __initdata i2c_devs[] = { { I2C_BOARD_INFO("mcp23017", 0x20), .platform_data = &smartview_mcp23017_data, }, ... }; Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* mcp23s08: isolate spi specific partsPeter Korsgaard2011-07-151-24/+57
| | | | | | | | | | Change spi member of struct mcp23s08 to be a ops-specific opaque data pointer, and move spi specific knowledge out of mcp23s08_probe_one(). No functional change, but is needed to add i2c support. Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* mcp23s08: get rid of setup/teardown callbacksPeter Korsgaard2011-07-151-19/+0
| | | | | | | There's no in-tree users, and bus notifiers are more generic anyway. Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* mcp23s08: remove unused work queuePeter Korsgaard2011-07-141-3/+0
| | | | | | | Never accessed anywhere. Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* gpio: reorganize driversGrant Likely2011-06-061-0/+530
Sort the gpio makefile and enforce the naming convention gpio-*.c for gpio drivers. v2: cleaned up filenames in Kconfig and comment blocks v3: fixup use of BASIC_MMIO to GENERIC_GPIO for mxc Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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