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drm/bridge: Fix assignment of the of_node of the parent to aux bridge

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The assignment of the of_node to the aux bridge needs to mark the
of_node as reused as well, otherwise resource providers like pinctrl will
report a gpio as already requested by a different device when both pinconf
and gpios property are present.
Fix that by using the device_set_of_node_from_dev() helper instead.

Fixes: 6914968a0b ("drm/bridge: properly refcount DT nodes in aux bridge drivers")
Cc: stable@vger.kernel.org      # 6.8
Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20241018-drm-aux-bridge-mark-of-node-reused-v2-1-aeed1b445c7d@linaro.org
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20241018-drm-aux-bridge-mark-of-node-reused-v2-1-aeed1b445c7d@linaro.org
This commit is contained in:
Abel Vesa 2024-10-18 15:49:34 +03:00 committed by Neil Armstrong
parent 83f0007848
commit 85e444a681
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/bridge/aux-bridge.c
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@ -58,9 +58,10 @@ int drm_aux_bridge_register(struct device *parent)
adev->id = ret;
adev->name = "aux_bridge";
adev->dev.parent = parent;
adev->dev.of_node = of_node_get(parent->of_node);
adev->dev.release = drm_aux_bridge_release;
device_set_of_node_from_dev(&adev->dev, parent);
ret = auxiliary_device_init(adev);
if (ret) {
ida_free(&drm_aux_bridge_ida, adev->id);