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gpio: Clarify that <linux/gpio.h> is legacy 

It should be clear to developers that they should not include
this file in new code.

Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
hifive-unleashed-5.1
Linus Walleij 2017-11-30 11:03:05 +01:00
parent 35541874e6
commit 56a46b6144
1 changed files with 10 additions and 0 deletions
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10
include/linux/gpio.h
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@ -1,4 +1,14 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* <linux/gpio.h>
*
* This is the LEGACY GPIO bulk include file, including legacy APIs. It is
* used for GPIO drivers still referencing the global GPIO numberspace,
* and should not be included in new code.
*
* If you're implementing a GPIO driver, only include <linux/gpio/driver.h>
* If you're implementing a GPIO consumer, only include <linux/gpio/consumer.h>
*/
#ifndef __LINUX_GPIO_H
#define __LINUX_GPIO_H