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2009-05-07[ARM] S3C: GPIO PM core GPIOlib integrationBen Dooks
Move the GPIO suspend/resume support inline with the gpiolib support so that it will work with both the S3C24XX and S3C64XX series. The s3c_gpio_chip is extended to have a pm callback and a save block to keep the state of the GPIO over suspend, and the code from the s3c24xx implementation is added to a new common file. The suspend process now uses the list of registered chips to go through saving and restoring each one as appropriate, using the pm callback to select the appropriate routine depending on the type of control register present. This change also means that any additional GPIO added should not require changes to the PM. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-02-26[ARM] S3C64XX: Do gpiolib configuration earlierMark Brown
arch_initcall() runs after the machine init function which means that any configuration of GPIO pins must currently be done later on, for example in callbacks from drivers. Move the initialisation earlier in order to allow machines to configure GPIOs directly in their init functions rather than having to have a callback invoked later on. Some other ARM platforms use this method. Other solutions for this include providing a special interface for setting up GPIOs en masse, adding callbacks to do the GPIO configuration from devices and doing the GPIO configuration implicitly. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2008-12-15[ARM] S3C: Add new GPIO configuration callsBen Dooks
Add new GPIO configuration calls that mesh with the new gpiolib support. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2008-12-15[ARM] S3C64XX: GPIO library supportBen Dooks
Add gpiolib registration for the GPIOs available on the S3C64XX platform Signed-off-by: Ben Dooks <ben-linux@fluff.org>