From c602b36fe245f2114153f6690d1222ce1a51e942 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 8 Jul 2019 15:53:18 +0200 Subject: [PATCH] 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: 7ed4e6352c16 ("drm/amd/display: Add DCN2 HW Sequencer and Resource") Signed-off-by: Arnd Bergmann Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c index 4b0d8b9f61da..6925d25d2457 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c @@ -22,6 +22,7 @@ * Authors: AMD * */ +#include #include "dm_services.h" #include "dm_helpers.h" -- 2.34.1