Add a function to configure a range of GPIOs function and
pull in one go, mainly for the SDHCI and framebuffer helpers
which tend to do this.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
[kgene.kim@samsung.com: Fix small comments]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Add s3c_gpio_cfgpin_range() to configure a range of pins to the given
value. This is useful for a number of blocks where the pins are in order
and saves multiple calls to s3c_gpio_cfgpin().
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This patch fixes on defined drive strength value for GPIO.
According to data sheet, if we want drive strength 1x, the value
should be 00(b), if 2x should be 10(b), if 3x should be 01(b),
and if 4x should be 11(b). Also fixes comment(from S5C to S5P).
Reported-by: Janghyuck Kim <janghyuck.kim@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Update the documentation on the gpio configuration calls to add more
references to useful information and also to document the values that
are passed.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Driver strength parameter can be changed not only on S5PC100 but also
on S5PV210/S5PC110 platforms, so move the helper functions to the common
plat-samsung directory.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Move the GPIO and GPIO configuration headers into arch/arm/plat-samsung
as they are common to all the Samsung SoCs.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Ben Dooks