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Make the architecture gpio more readable
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@8504 3c298f89-4303-0410-b956-a3cf2f4a3e73
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@ -15,8 +15,12 @@
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#include <linux/module.h>
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#include <linux/delay.h>
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#define RDC3210_CFGREG_ADDR 0x0CF8
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#define RDC3210_CFGREG_DATA 0x0CFC
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#include <asm/mach-rdc/rdc321x_defs.h>
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static inline int rdc_gpio_is_valid(unsigned gpio)
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{
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return ((gpio > RDC_MAX_GPIO) ? 0 : 1);
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}
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static unsigned int rdc_gpio_read(unsigned gpio)
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{
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@ -47,7 +51,8 @@ static void rdc_gpio_write(unsigned int val)
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int rdc_gpio_get_value(unsigned gpio)
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{
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return (gpio>0x3A?-EINVAL:(int)rdc_gpio_read(gpio));
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if (rdc_gpio_is_valid(gpio))
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return (int)rdc_gpio_read(gpio);
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}
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EXPORT_SYMBOL(rdc_gpio_get_value);
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@ -55,7 +60,9 @@ void rdc_gpio_set_value(unsigned gpio, int value)
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{
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unsigned int val;
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if (gpio > 0x3A) return;
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if (!rdc_gpio_is_valid(gpio))
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return;
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val = rdc_gpio_read(gpio);
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if (value)
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