diff options
author | Jeff Garzik <jgarzik@pobox.com> | 2005-10-28 18:48:57 -0400 |
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committer | Jeff Garzik <jgarzik@pobox.com> | 2005-10-28 18:48:57 -0400 |
commit | 596c96ba06e5d56e72451e02f93f4e15e17458df (patch) | |
tree | 78bc640acacb8faeb621c51296e99dbb0533a147 /arch/arm/mach-s3c2410/gpio.c | |
parent | ad18b0ea089928367185e13d11424aea91d4b41f (diff) | |
parent | 20731945ae743034353a88c307920d1f16cf8ac8 (diff) |
Merge branch 'master'
Diffstat (limited to 'arch/arm/mach-s3c2410/gpio.c')
-rw-r--r-- | arch/arm/mach-s3c2410/gpio.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c2410/gpio.c b/arch/arm/mach-s3c2410/gpio.c index 94f1776cf31..23ea3d5fa09 100644 --- a/arch/arm/mach-s3c2410/gpio.c +++ b/arch/arm/mach-s3c2410/gpio.c @@ -30,6 +30,7 @@ * 04-Oct-2004 BJD Added irq filter controls for GPIO * 05-Nov-2004 BJD EXPORT_SYMBOL() added for all code * 13-Mar-2005 BJD Updates for __iomem + * 26-Oct-2005 BJD Added generic configuration types */ @@ -58,6 +59,27 @@ void s3c2410_gpio_cfgpin(unsigned int pin, unsigned int function) mask = 3 << S3C2410_GPIO_OFFSET(pin)*2; } + switch (function) { + case S3C2410_GPIO_LEAVE: + mask = 0; + function = 0; + break; + + case S3C2410_GPIO_INPUT: + case S3C2410_GPIO_OUTPUT: + case S3C2410_GPIO_SFN2: + case S3C2410_GPIO_SFN3: + if (pin < S3C2410_GPIO_BANKB) { + function &= 1; + function <<= S3C2410_GPIO_OFFSET(pin); + } else { + function &= 3; + function <<= S3C2410_GPIO_OFFSET(pin)*2; + } + } + + /* modify the specified register wwith IRQs off */ + local_irq_save(flags); con = __raw_readl(base + 0x00); |