From: Dave Stevenson <[email protected]>

vc4_dsi_encoder_disable is partially an open coded version of
drm_bridge_chain_disable, but it missed a termination condition
in the loop for ->disable which meant that no post_disable
calls were made.

Add in the termination clause.

Fixes: 033bfe7538a1 ("drm/vc4: dsi: Fix bridge chain handling")
Signed-off-by: Dave Stevenson <[email protected]>
Signed-off-by: Maxime Ripard <[email protected]>
---
 drivers/gpu/drm/vc4/vc4_dsi.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/vc4/vc4_dsi.c b/drivers/gpu/drm/vc4/vc4_dsi.c
index 333ea96fcde4..b7b2c76770dc 100644
--- a/drivers/gpu/drm/vc4/vc4_dsi.c
+++ b/drivers/gpu/drm/vc4/vc4_dsi.c
@@ -803,6 +803,9 @@ static void vc4_dsi_encoder_disable(struct drm_encoder 
*encoder)
        list_for_each_entry_reverse(iter, &dsi->bridge_chain, chain_node) {
                if (iter->funcs->disable)
                        iter->funcs->disable(iter);
+
+               if (iter == dsi->bridge)
+                       break;
        }
 
        vc4_dsi_ulps(dsi, true);
-- 
2.36.1

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