linux-kernel - [PATCH 1/2] gpio: implement x86 gpio_to

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Date:	Tue, 11 Jan 2011 10:55:32 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	x86@...nel.org, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] gpio: implement x86 gpio_to_irq convert function

From: Alek Du <alek.du@...el.com>

We need this for x86 MID platforms where GPIO interrupts are used. No special
magic is needed so the default 1:1 behaviour will do nicely.

Signed-off-by: Alek Du <alek.du@...el.com>
Signed-off-by: Jacob Pan <jacob.jun.pan@...el.com>
Signed-off-by: Alan Cox <alan@...ux.intel.com>
---

 arch/x86/include/asm/gpio.h |    5 +----
 1 files changed, 1 insertions(+), 4 deletions(-)


diff --git a/arch/x86/include/asm/gpio.h b/arch/x86/include/asm/gpio.h
index 49dbfdf..91d915a 100644
--- a/arch/x86/include/asm/gpio.h
+++ b/arch/x86/include/asm/gpio.h
@@ -38,12 +38,9 @@ static inline int gpio_cansleep(unsigned int gpio)
 	return __gpio_cansleep(gpio);
 }
 
-/*
- * Not implemented, yet.
- */
 static inline int gpio_to_irq(unsigned int gpio)
 {
-	return -ENOSYS;
+	return __gpio_to_irq(gpio);
 }
 
 static inline int irq_to_gpio(unsigned int irq)

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