[PATCH 10/12] drm/amd/display: avoid apply_clk_constraints for address update

Harry Wentland harry.wentland at amd.com
Thu Dec 8 01:26:22 UTC 2016


From: Tony Cheng <tony.cheng at amd.com>

- dc_update_surfaces_for_target get called in ISR but apply_clk_constraints allocates memory

Change-Id: I9f4b7b6ca4af27c35c007e3af95111081a77d242
Signed-off-by: Tony Cheng <tony.cheng at amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin at amd.com>
Acked-by: Harry Wentland <Harry.Wentland at amd.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 70b7673993b2..522ef7047564 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -1336,6 +1336,7 @@ void dc_update_surfaces_for_target(struct dc *dc, struct dc_surface_update *upda
 	int i, j;
 	bool is_new_pipe_surface[MAX_PIPES];
 	const struct dc_surface *new_surfaces[MAX_SURFACES] = { 0 };
+	bool need_apply_clk_constraints = false;
 
 	update_surface_trace(dc, updates, surface_count);
 
@@ -1405,6 +1406,7 @@ void dc_update_surfaces_for_target(struct dc *dc, struct dc_surface_update *upda
 
 			if (updates[i].plane_info || updates[i].scaling_info
 					|| is_new_pipe_surface[j]) {
+				need_apply_clk_constraints = true;
 
 				if (updates[i].plane_info) {
 					surface->public.color_space =
-- 
2.9.3



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