Add the necessary 1,2 and 4 bit configuration read calls for the new
gpio code to allow removal of the old s3c24xx gpio code.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Add the GPIO banks that are used on the S3C2443 and above to the
list of available GPIOS.
Currently we do not have any limit on the SoC GPIO, so these are
being registered whether the SoC has them or not. It is currently
up to the user not to try and use them.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Add support for s3c_gpio_setcfg() and s3c_gpio_setpull() implementations
to get ready for removal of the specific code being used by s3c24xx.
Also rename the s3c_gpio_setcfg_s3c24xx_banka to s3c_gpio_setcfg_s3c24xx_a
as seen in the header file to correct a build warning.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Rename mach-s3c2410/include/mach/gpio-core.h to mach/gpio-track.h so that
it can be included by <plat/gpio-core.h> when needed.
Eliminate all other empty gpio-core.h files and just include the
<plat/gpio-core.h> as necessary.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
The arch_initcall() is too late for board initialisation to use
gpiolib when doing their machine specific initilisation via the
.init_machine callback.
Bring the file into line with the s3c64xx implementation and use
the core_initcall() to register the GPIO chips.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Prepare to remove the large number of S3C2410_GPxn defines
by moving to S3C2410_GPx(n) in arch/arm.
The following perl was used to change the files:
perl -pi~ -e 's/S3C2410_GP([A-Z])([0-9]+)([^_^0-9])/S3C2410_GP\1\(\2\)\3/g'
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
The S3C24XX_GPIO_BASE makes it difficult to compress the
GPIO number space, and is only used in a few places of
which everything outside arch/arm/plat-s3c24xx/gpiolib.c
will be removed as soon as possible.
Change gpiolib.c to use the S3C2410_GPxCON register addresses
as the base for each bank, thus eliminating S3C24XX_GPIO_BASE.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
In our recent changes, arch/arm/plat-s3c24xx/gpiolib.c needs
to have <linux/sysdev.h> included for it to build.
This fixes the following error/warnings:
arch/arm/plat-s3c/include/plat/pm.h:104: error: expected declaration specifiers or '...' before 'pm_message_t'
arch/arm/plat-s3c/include/plat/pm.h:104: warning: 'struct sys_device' declared inside parameter list
arch/arm/plat-s3c/include/plat/pm.h:104: warning: its scope is only this definition or declaration, which is probably not what you want
arch/arm/plat-s3c/include/plat/pm.h:105: warning: 'struct sys_device' declared inside parameter list
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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>
Fix the following sparse error generated by including
<plat/gpio-core.h> instead of <mach/gpio-core.h>
gpiolib.c:78:22: warning: symbol 's3c24xx_gpios' was not declared. Should it be static?
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
All the s3c24xx gpiolib chips share the same get/set
calls and all but one bank shares the same calls for
.direction_input and .direction_output methods.
Change the initialisation process to use an new call
to register the chips that fills in any blank calls
with the default values to avoid having to fill them
in the structure initialisers.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Fix the following problems spotted by sparse:
warning: symbol 's3c24xx_gpiolib_input' was not declared. Should it be static?
warning: symbol 's3c24xx_gpiolib_output' was not declared. Should it be static?
warning: symbol 's3c24xx_gpiolib_set' was not declared. Should it be static?
warning: symbol 's3c24xx_gpiolib_get' was not declared. Should it be static?
warning: symbol 'gpios' was not declared. Should it be static?
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Remove includes of asm/hardware.h in addition to asm/arch/hardware.h.
Then, since asm/hardware.h only exists to include asm/arch/hardware.h,
update everything to directly include asm/arch/hardware.h and remove
asm/hardware.h.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
