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author | Vasily Khoruzhick <anarsoul@gmail.com> | 2010-12-01 08:29:23 +0200 |
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committer | Ben Dooks <ben-linux@fluff.org> | 2010-12-08 01:04:56 +0000 |
commit | 812c4e40c27b6ea103ecfbf91d43654356629b81 (patch) | |
tree | bdd9c098825bcd603a541c3935e7a70898b3769f /arch/arm/mach-s3c2440/s3c2442.c | |
parent | 2e18edf75d586d9044c1f1e6b1bc8e7c26c4149f (diff) | |
download | kernel_samsung_aries-812c4e40c27b6ea103ecfbf91d43654356629b81.zip kernel_samsung_aries-812c4e40c27b6ea103ecfbf91d43654356629b81.tar.gz kernel_samsung_aries-812c4e40c27b6ea103ecfbf91d43654356629b81.tar.bz2 |
ARM: S3C24XX: Fix mess with gpio {set,get}_pull callbacks
Currently the {set,get}_pull callbacks of the s3c24xx_gpiocfg_default structure
are initalized via s3c_gpio_{get,set}pull_1up. This results in a linker
error when only CONFIG_CPU_S3C2442 is selected:
arch/arm/plat-s3c24xx/built-in.o:(.data+0x13f4): undefined reference to
`s3c_gpio_getpull_1up'
arch/arm/plat-s3c24xx/built-in.o:(.data+0x13f8): undefined reference to
`s3c_gpio_setpull_1up'
The s3c2442 has pulldowns instead of pullups compared to the s3c2440.
The method of controlling them is the same though.
So this patch modifies the existing s3c_gpio_{get,set}pull_1up helper functions
to take an additional parameter deciding whether the pin has a pullup or pulldown.
The s3c_gpio_{get,set}pull_1{down,up} functions then wrap that functions passing
either S3C_GPIO_PULL_UP or S3C_GPIO_PULL_DOWN.
Furthermore this patch sets up the s3c24xx_gpiocfg_default.{get,set}_pull fields
in the s3c244{0,2}_map_io function to the new pulldown helper functions.
Based on patch from "Lars-Peter Clausen" <lars@metafoo.de>
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'arch/arm/mach-s3c2440/s3c2442.c')
-rw-r--r-- | arch/arm/mach-s3c2440/s3c2442.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c2440/s3c2442.c b/arch/arm/mach-s3c2440/s3c2442.c index 188ad1e..ecf8135 100644 --- a/arch/arm/mach-s3c2440/s3c2442.c +++ b/arch/arm/mach-s3c2440/s3c2442.c @@ -32,6 +32,7 @@ #include <linux/interrupt.h> #include <linux/ioport.h> #include <linux/mutex.h> +#include <linux/gpio.h> #include <linux/clk.h> #include <linux/io.h> @@ -43,6 +44,11 @@ #include <plat/clock.h> #include <plat/cpu.h> +#include <plat/s3c244x.h> + +#include <plat/gpio-core.h> +#include <plat/gpio-cfg.h> +#include <plat/gpio-cfg-helpers.h> /* S3C2442 extended clock support */ @@ -163,3 +169,11 @@ int __init s3c2442_init(void) return sysdev_register(&s3c2442_sysdev); } + +void __init s3c2442_map_io(void) +{ + s3c244x_map_io(); + + s3c24xx_gpiocfg_default.set_pull = s3c_gpio_setpull_1down; + s3c24xx_gpiocfg_default.get_pull = s3c_gpio_getpull_1down; +} |