public-mirrors/linux
1
0
Fork 0
mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-08-05 16:54:27 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

drm/amd/display: check if REFCLK_CNTL register is present

Browse source 
Check before programming the register since it isn't present on
all IPs using this code.

Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Eric Bernstein <Eric.Bernstein@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Dmytro Laktyushkin 2020-04-22 18:07:52 -04:00 • committed by Alex Deucher
parent 9017a4897a
commit 3159d41db3
1 changed files with 2 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c
View file

@ -2294,7 +2294,8 @@ void dcn20_fpga_init_hw(struct dc *dc)
REG_UPDATE(DCHUBBUB_GLOBAL_TIMER_CNTL, DCHUBBUB_GLOBAL_TIMER_REFDIV, 2);
REG_UPDATE(DCHUBBUB_GLOBAL_TIMER_CNTL, DCHUBBUB_GLOBAL_TIMER_ENABLE, 1);
REG_WRITE(REFCLK_CNTL, 0);
if (REG(REFCLK_CNTL))
REG_WRITE(REFCLK_CNTL, 0);
//