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button: add udevice forward declaration

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After 401d1c4f5d ("common: Drop asm/global_data.h from common header")
build fails with :

drivers/button/button-uclass.c:13:5: error: conflicting types for 'button_get_by_label'
int button_get_by_label(const char *label, struct udevice **devp)
    ^~~~~~~~~~~~~~~~~~~

Adding struct udevice forward declaration in button.h solves the build error.

Fixes: 401d1c4f5d ("common: Drop asm/global_data.h from common header")
Suggested-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Neil Armstrong 2021-02-19 08:31:47 +01:00
parent 289d0ead28
commit 2d339efb1f
1 changed files with 2 additions and 0 deletions
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2
include/button.h
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@ -6,6 +6,8 @@
#ifndef __BUTTON_H #ifndef __BUTTON_H
#define __BUTTON_H #define __BUTTON_H
struct udevice;
/** /**
* struct button_uc_plat - Platform data the uclass stores about each device * struct button_uc_plat - Platform data the uclass stores about each device
* *