Commit c602b36f authored Jul 08, 2019 by Arnd Bergmann Committed by Alex Deucher Jul 08, 2019

drm/amd/display: dcn20: include linux/delay.h



Without this header, we get a compiler error in some configurations:

.../dc/dcn20/dcn20_hwseq.c: In function 'dcn20_hwss_wait_for_blank_complete':
.../dc/dcn20/dcn20_hwseq.c:1493:3: error: implicit declaration of function 'udelay' [-Werror=implicit-function-declaration]

Note: the use of udelay itself may be problematic, as can occupy
the CPU for 200ms in a busy-loop here.

Fixes: 7ed4e635 ("drm/amd/display: Add DCN2 HW Sequencer and Resource")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

parent d155bef0

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -22,6 +22,7 @@
		* Authors: AMD
		*
		*/
		#include <linux/delay.h>

		#include "dm_services.h"
		#include "dm_helpers.h"

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