diff options
author | Tejun Heo <tj@kernel.org> | 2010-01-05 09:17:33 +0900 |
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committer | Tejun Heo <tj@kernel.org> | 2010-01-05 09:17:33 +0900 |
commit | 32032df6c2f6c9c6b2ada2ce42322231824f70c2 (patch) | |
tree | b1ce838a37044bb38dfc128e2116ca35630e629a /arch/arm/plat-s5pc1xx/gpio-config.c | |
parent | 22b737f4c75197372d64afc6ed1bccd58c00e549 (diff) | |
parent | c5974b835a909ff15c3b7e6cf6789b5eb919f419 (diff) | |
download | op-kernel-dev-32032df6c2f6c9c6b2ada2ce42322231824f70c2.zip op-kernel-dev-32032df6c2f6c9c6b2ada2ce42322231824f70c2.tar.gz |
Merge branch 'master' into percpu
Conflicts:
arch/powerpc/platforms/pseries/hvCall.S
include/linux/percpu.h
Diffstat (limited to 'arch/arm/plat-s5pc1xx/gpio-config.c')
-rw-r--r-- | arch/arm/plat-s5pc1xx/gpio-config.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/arch/arm/plat-s5pc1xx/gpio-config.c b/arch/arm/plat-s5pc1xx/gpio-config.c new file mode 100644 index 0000000..bba675d --- /dev/null +++ b/arch/arm/plat-s5pc1xx/gpio-config.c @@ -0,0 +1,62 @@ +/* linux/arch/arm/plat-s5pc1xx/gpio-config.c + * + * Copyright 2009 Samsung Electronics + * + * S5PC1XX GPIO Configuration. + * + * Based on plat-s3c64xx/gpio-config.c + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/gpio.h> +#include <linux/io.h> + +#include <mach/gpio-core.h> +#include <plat/gpio-cfg-s5pc1xx.h> + +s5p_gpio_drvstr_t s5p_gpio_get_drvstr(unsigned int pin, unsigned int off) +{ + struct s3c_gpio_chip *chip = s3c_gpiolib_getchip(pin); + void __iomem *reg; + int shift = off * 2; + u32 drvstr; + + if (!chip) + return -EINVAL; + + reg = chip->base + 0x0C; + + drvstr = __raw_readl(reg); + drvstr = 0xffff & (0x3 << shift); + drvstr = drvstr >> shift; + + return (__force s5p_gpio_drvstr_t)drvstr; +} +EXPORT_SYMBOL(s5p_gpio_get_drvstr); + +int s5p_gpio_set_drvstr(unsigned int pin, unsigned int off, + s5p_gpio_drvstr_t drvstr) +{ + struct s3c_gpio_chip *chip = s3c_gpiolib_getchip(pin); + void __iomem *reg; + int shift = off * 2; + u32 tmp; + + if (!chip) + return -EINVAL; + + reg = chip->base + 0x0C; + + tmp = __raw_readl(reg); + tmp |= drvstr << shift; + + __raw_writel(tmp, reg); + + return 0; +} +EXPORT_SYMBOL(s5p_gpio_set_drvstr); |