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@@ -199,3 +199,19 @@ int s3c2410_gpio_getirq(unsigned int pin)
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}
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EXPORT_SYMBOL(s3c2410_gpio_getirq);
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+
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+int s3c2410_gpio_irq2pin(unsigned int irq)
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+{
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+ if (irq >= IRQ_EINT0 && irq <= IRQ_EINT3)
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+ return S3C2410_GPF0 + (irq - IRQ_EINT0);
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+
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+ if (irq >= IRQ_EINT4 && irq <= IRQ_EINT7)
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+ return S3C2410_GPF4 + (irq - IRQ_EINT4);
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+
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+ if (irq >= IRQ_EINT8 && irq <= IRQ_EINT23)
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+ return S3C2410_GPG0 + (irq - IRQ_EINT8);
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+
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+ return -EINVAL;
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+}
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+
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+EXPORT_SYMBOL(s3c2410_gpio_irq2pin);
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