Hi, This series aims to check panel device dependency upon DRM device before managing device link between them. It fixes eariler patches in v6.7-rc1 which tried to manage the link. Without this series, the link fails to be added for dependent panel devices and hence relevant panel bridges fail to be attached. A real broken panel is "novatek,nt35510" defined in arch/arm/boot/dts/st/ste-ux500-samsung-skomer.dts as reported by Linus Walleij. Patch 1 exports device_is_dependent() to modules as needed by patch 2. Patch 2 checks device dependency before managing the device link. Note that patch 2 is already in drm-misc/drm-misc-fixes and drm-misc/for-linux-next-fixes. Patch 1 needs to be reviewed and picked up. v2: * Introduce patch 1 to export device_is_dependent() to modules as needed by patch 2. Liu Ying (2): driver core: Export device_is_dependent() to modules drm/bridge: panel: Check device dependency before managing device link drivers/base/core.c | 1 + drivers/gpu/drm/bridge/panel.c | 27 ++++++++++++++++++--------- 2 files changed, 19 insertions(+), 9 deletions(-) -- 2.37.1
