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ARM: UniPhier: add dummy gpio.h to enable CONFIG_OF_CONTROL 

If CONFIG_OF_CONTROL is enabled, lib/fdtdec.c is compiled.
It includes <asm/gpio.h> and then <asm/gpio.h> includes
<asm/arch/gpio.h>.  Consequently, all the SoCs that enable
CONFIG_OF_CONTROL must have <asm/arch/gpio.h> even if they do not
support GPIO.

In the first place, GPIO has nothing to do with OF_CONTROL.
It is wrong that lib/fdtdec.c includes GPIO functions; it should
be split into two files, FDT-common things and GPIO things.
It is, however, a pretty big work to fix that correctly.

This is a compromised commit to add a dummy <asm/arch/gpio.h>
to support OF_CONTROL for UniPhier platform.  This dummy header
will be removed after FDT-GPIO stuff is fixed correctly.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Masahiro Yamada 2014-11-26 18:33:58 +09:00
parent 4b4af643fa
commit 630bf80ebb
1 changed files with 6 additions and 0 deletions
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6
arch/arm/include/asm/arch-uniphier/gpio.h Normal file
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/*
* Dummy header file to enable CONFIG_OF_CONTROL.
* If CONFIG_OF_CONTROL is enabled, lib/fdtdec.c is compiled.
* It includes <asm/arch/gpio.h> via <asm/gpio.h>, so those SoCs that enable
* OF_CONTROL must have arch/gpio.h even if GPIO is not supported.
*/