[PATCH AUTOSEL 6.1 46/53] drm/amd/display: Fixing stream allocation regression

[Sasha Levin]

From: Relja Vojvodic <relja.vojvodic at amd.com>

[ Upstream commit 292c2116b2ae84c7e799ae340981e60551b18f5e ]

For certain dual display configs that had one display using a 1080p
mode, the DPM level used to drive the configs regressed from DPM 0 to
DPM 3. This was caused by a missing check that should have only limited
the pipe segments on non-phantom pipes. This caused issues with detile
buffer allocation, which dissallow subvp from being used

Tested-by: Daniel Wheeler <daniel.wheeler at amd.com>
Reviewed-by: Dillon Varone <dillon.varone at amd.com>
Reviewed-by: Martin Leung <martin.leung at amd.com>
Acked-by: Rodrigo Siqueira <rodrigo.siqueira at amd.com>
Signed-off-by: Relja Vojvodic <relja.vojvodic at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
Signed-off-by: Sasha Levin <sashal at kernel.org>
---
 drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource_helpers.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource_helpers.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource_helpers.c
index fa3778849db1..5e0fcb80bf36 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource_helpers.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource_helpers.c
@@ -216,7 +216,7 @@ bool dcn32_subvp_in_use(struct dc *dc,
 	for (i = 0; i < dc->res_pool->pipe_count; i++) {
 		struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i];
 
-		if (pipe->stream && pipe->stream->mall_stream_config.type != SUBVP_NONE)
+		if (pipe->stream && pipe->stream->mall_stream_config.type != SUBVP_PHANTOM != SUBVP_NONE)
 			return true;
 	}
 	return false;
-- 
2.43.0