From eee9647490b6129a632058aa8c4be503443650f3 Mon Sep 17 00:00:00 2001 From: Nicholas Kazlauskas Date: Tue, 15 Dec 2020 09:19:20 -0500 Subject: [PATCH] drm/amd/display: Allow dmub srv hardware reset before HW init [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. Tested-by: Daniel Wheeler Signed-off-by: Nicholas Kazlauskas Reviewed-by: Eric Yang Acked-by: Anson Jacob Signed-off-by: Alex Deucher --- 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 f388d36af0b6c..d2588b7cd3255 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); -- 2.30.2