[PATCH v2 01/11] drm/bridge: Fix bridge disable logic

From: Dario Binacchi
Date: Sun Nov 26 2023 - 10:46:55 EST


As explained by the comment of the fixed code, we need to find the next
bridge that hasn't set the "pre_enable_prev_first" flag to true. The code,
on the contrary, was doing the opposite.
So, the order of disabling the bridges couldn't be altered as required
by setting the "pre_enable_prev_first" flag to true.

Fixes: 4fb912e5e190 ("drm/bridge: Introduce pre_enable_prev_first to alter bridge init order")
Signed-off-by: Dario Binacchi <dario.binacchi@xxxxxxxxxxxxxxxxxxxx>
---

(no changes since v1)

drivers/gpu/drm/drm_bridge.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_bridge.c b/drivers/gpu/drm/drm_bridge.c
index 30d66bee0ec6..f66bf4925dd8 100644
--- a/drivers/gpu/drm/drm_bridge.c
+++ b/drivers/gpu/drm/drm_bridge.c
@@ -686,7 +686,7 @@ void drm_atomic_bridge_chain_post_disable(struct drm_bridge *bridge,
*/
list_for_each_entry_from(next, &encoder->bridge_chain,
chain_node) {
- if (next->pre_enable_prev_first) {
+ if (!next->pre_enable_prev_first) {
next = list_prev_entry(next, chain_node);
limit = next;
break;
--
2.42.0