[PATCH] drm/amdgpu/display: protect DCN specific stuff in process_deferred_updates

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Need to protect this function with CONFIG_DRM_AMD_DC_DCN.

Fixes: bfd34644dedb ("drm/amd/display: Defer LUT memory powerdown until LUT bypass latches")
Cc: Michael Strauss <michael.strauss@xxxxxxx>
Cc: Eric Yang <Eric.Yang2@xxxxxxx>
Cc: Anson Jacob <Anson.Jacob@xxxxxxx>
Reported-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
 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 0f0440408a16..b113e7e74ded 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -1802,12 +1802,14 @@ static bool is_flip_pending_in_pipes(struct dc *dc, struct dc_state *context)
  */
 static void process_deferred_updates(struct dc *dc)
 {
+#ifdef CONFIG_DRM_AMD_DC_DCN
 	int i;
 
 	if (dc->debug.enable_mem_low_power.bits.cm)
 		for (i = 0; i < dc->dcn_ip->max_num_dpp; i++)
 			if (dc->res_pool->dpps[i]->funcs->dpp_deferred_update)
 				dc->res_pool->dpps[i]->funcs->dpp_deferred_update(dc->res_pool->dpps[i]);
+#endif
 }
 
 void dc_post_update_surfaces_to_stream(struct dc *dc)
-- 
2.31.1




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