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drm/vc4: dsi: Add correct stop condition to vc4_dsi_encoder_disable iteration

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[ Upstream commit 7bcb9c8d0b ]

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: 033bfe7538 ("drm/vc4: dsi: Fix bridge chain handling")
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://lore.kernel.org/r/20220613144800.326124-17-maxime@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Dave Stevenson 2022-06-13 16:47:43 +02:00 committed by Greg Kroah-Hartman
parent acfca24ec0
commit cefc8e7e0e
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/vc4/vc4_dsi.c
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@ -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) { list_for_each_entry_reverse(iter, &dsi->bridge_chain, chain_node) {
if (iter->funcs->disable) if (iter->funcs->disable)
iter->funcs->disable(iter); iter->funcs->disable(iter);
if (iter == dsi->bridge)
break;
} }
vc4_dsi_ulps(dsi, true); vc4_dsi_ulps(dsi, true);