[PATCH] button: add udevice forward declaration

[Neil Armstrong]

On 20/02/2021 12:55, Simon Glass wrote:
> On Fri, 19 Feb 2021 at 00:41, Neil Armstrong <narmstrong at baylibre.com> wrote:
>>
>> After 401d1c4f5d2d ("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: 401d1c4f5d2d ("common: Drop asm/global_data.h from common header")
>> Suggested-by: Heinrich Schuchardt <xypron.glpk at gmx.de>
>> Signed-off-by: Neil Armstrong <narmstrong at baylibre.com>
>> ---
>> Hi,
>>
>> This is needed to fix build on vim3/vim3l after [1] is applied.
>>
>> [1] https://patchwork.ozlabs.org/project/uboot/cover/20210218103318.18915-1-m.szyprowski@samsung.com/
>>
>>  include/button.h | 2 ++
>>  1 file changed, 2 insertions(+)
>>
> 
> Reviewed-by: Simon Glass <sjg at chromium.org>
> 

Thanks, applied to u-boot-amlogic

Neil