[PATCH 06/16] drm/amd/display: Allow dmub srv hardware reset before HW init
Anson Jacob
Anson.Jacob at amd.com
Fri Jan 15 17:27:08 UTC 2021
From: Nicholas Kazlauskas <nicholas.kazlauskas at amd.com>
[Why]
We need hardware reset before hardware init for backdoor loading when
we're reusing the framebuffer memory.
[How]
This doesn't run if the hardware isn't already in reset from software
perspective. The reset function has register level checks so just
remove the software one here.
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas at amd.com>
Reviewed-by: Eric Yang <eric.yang2 at amd.com>
Acked-by: Anson Jacob <anson.jacob at amd.com>
---
drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c b/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c
index f388d36af0b6..d2588b7cd325 100644
--- a/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c
+++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_srv.c
@@ -489,9 +489,6 @@ enum dmub_status dmub_srv_hw_reset(struct dmub_srv *dmub)
if (!dmub->sw_init)
return DMUB_STATUS_INVALID;
- if (dmub->hw_init == false)
- return DMUB_STATUS_OK;
-
if (dmub->hw_funcs.reset)
dmub->hw_funcs.reset(dmub);
--
2.25.1
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