Hi Marek, On Sat, Mar 4, 2023 at 3:56 AM Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> wrote: > > Hi Jagan, > > On 03.03.2023 15:51, Jagan Teki wrote: > > This series supports common bridge support for Samsung MIPI DSIM > > which is used in Exynos and i.MX8MM SoC's. > > > > The final bridge supports both the Exynos and i.MX8M Mini/Nano/Plus. > > > > Inki Dae: please note that this series added on top of exynos-drm-next > > since few exynos dsi changes are not been part of drm-misc-next. > > Request you to pick these via exynos-drm-next, or let me know if you > > have any comments? > > I gave it a try on Exynos TM2e and unfortunately it nukes again: > > exynos-drm exynos-drm: bound 13970000.hdmi (ops hdmi_component_ops) > Unable to handle kernel paging request at virtual address 003d454d414e5675 > ... > [003d454d414e5675] address between user and kernel address ranges > Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP > Modules linked in: > CPU: 4 PID: 9 Comm: kworker/u16:0 Not tainted 6.2.0-next-20230303+ #13341 > Hardware name: Samsung TM2E board (DT) > Workqueue: events_unbound deferred_probe_work_func > pstate: 000000c5 (nzcv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--) > pc : drm_connector_list_iter_next+0x58/0x100 > lr : drm_connector_list_iter_next+0x2c/0x100 > sp : ffff80000bbab910 > ... > Call trace: > drm_connector_list_iter_next+0x58/0x100 > drm_mode_config_reset+0xfc/0x144 > exynos_drm_bind+0x160/0x1b8 > try_to_bring_up_aggregate_device+0x168/0x1d4 > __component_add+0xa8/0x170 > component_add+0x14/0x20 > hdmi_probe+0x3fc/0x6d4 > platform_probe+0x68/0xd8 > really_probe+0x148/0x2b4 > __driver_probe_device+0x78/0xe0 > driver_probe_device+0xd8/0x160 > __device_attach_driver+0xb8/0x138 > bus_for_each_drv+0x84/0xe0 > __device_attach+0xa8/0x1b0 > device_initial_probe+0x14/0x20 > bus_probe_device+0xb0/0xb4 > deferred_probe_work_func+0x8c/0xc8 > process_one_work+0x288/0x6c8 > worker_thread+0x24c/0x450 > kthread+0x118/0x11c > ret_from_fork+0x10/0x20 This looks not related to dsi to me since there is no exynos_drm_dsi call in the trace. look hdmi related. Moreover, I think the exynos dsi worked well on v10 and I couldn't find any potential differences in terms of call flow change. https://gitlab.com/openedev/kernel/-/commits/imx8mm-dsi-v10 Please let me know, thanks! Jagan.
