On Mon, Nov 27, 2023 at 6:10 AM Liu Ying <victor.liu@xxxxxxx> wrote: > 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 I just applied patch 1 directly to the drm-misc-fixes so we don't have to revert and then re-apply patches, because that is a bigger evil. (We can't rebase these branches...) Yours, Linus Walleij