From: Arnd Bergmann <arnd@arndb.de>
To: "Harry Wentland" <harry.wentland@amd.com>,
"Leo Li" <sunpeng.li@amd.com>,
"Alex Deucher" <alexander.deucher@amd.com>,
"Christian König" <christian.koenig@amd.com>,
"David (ChunMing) Zhou" <David1.Zhou@amd.com>,
"David Airlie" <airlied@linux.ie>,
"Daniel Vetter" <daniel@ffwll.ch>
Cc: Arnd Bergmann <arnd@arndb.de>,
Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>,
Tony Cheng <Tony.Cheng@amd.com>,
Joshua Aberback <joshua.aberback@amd.com>,
Wenjing Liu <Wenjing.Liu@amd.com>,
Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>,
amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] drm/amd/display: dcn20: include linux/delay.h
Date: Mon, 8 Jul 2019 15:53:18 +0200 [thread overview]
Message-ID: <20190708135329.694852-1-arnd@arndb.de> (raw)
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 <arnd@arndb.de>
---
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 <linux/delay.h>
#include "dm_services.h"
#include "dm_helpers.h"
--
2.20.0
next reply other threads:[~2019-07-08 13:53 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-08 13:53 Arnd Bergmann [this message]
2019-07-08 16:01 ` Alex Deucher
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