bamkrs

So I made some progress, however, something seems of. I get a nullptr kernel panic when the module loads and tries to find the panel devicetree entry (i suppose) [ 1.749834] panel-dsi-simple ff960000.mipi.0: supply power not found, using dummy regulator [ 1.750865] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000290 [ 1.751637] Mem abort info: [ 1.751890] ESR = 0x96000004 [ 1.752166] EC = 0x25: DABT (current EL), IL = 32 bits [ 1.752636] SET = 0, FnV = 0 [ 1.752910] EA = 0, S1PTW = 0 [ 1.753191] Data abort info: [ 1.753449] ISV = 0, ISS = 0x00000004 [ 1.753822] CM = 0, WnR = 0 [ 1.754090] [0000000000000290] user address but active_mm is swapper [ 1.754654] Internal error: Oops: 96000004 [#1] PREEMPT SMP [ 1.755148] Modules linked in: [ 1.755433] CPU: 4 PID: 45 Comm: kworker/4:1 Not tainted 5.10.19-yocto-standard-som-rk3399 #1 [ 1.756181] Hardware name: Gessler GmbH IRISv1 (SOM-RK3399v2, MIPI-DSI) (DT) [ 1.756819] Workqueue: events deferred_probe_work_func [ 1.757282] pstate: 80000005 (Nzcv daif -PAN -UAO -TCO BTYPE=--) [ 1.757818] pc : of_drm_find_panel+0x78/0xc8 [ 1.758200] lr : of_drm_find_panel+0x4c/0xc8 [ 1.758579] sp : ffff800012263a80 [ 1.758876] x29: ffff800012263a80 x28: ffff800011cc7000 [ 1.759356] x27: ffff0000f77a87f0 x26: ffff0000f77a87a0 [ 1.759834] x25: ffff800011e8c540 x24: ffff8000111b47e8 [ 1.760312] x23: 0000000000000000 x22: 0000000000000001 [ 1.760790] x21: ffff800011e8a160 x20: ffff0000f7817330 [ 1.761266] x19: ffff000042fc3c80 x18: 0000000000000000 [ 1.761744] x17: 0000000000000020 x16: 0000000000000019 [ 1.762221] x15: ffffffffffffffff x14: ffffff0000000000 [ 1.762698] x13: ffffffffffffffff x12: 000000000000000c [ 1.763175] x11: 0000000000000003 x10: 0101010101010101 [ 1.763652] x9 : fffffffffffffff9 x8 : 7f7f7f7f7f7f7f7f [ 1.764129] x7 : fefefeff646c606d x6 : 1d150c11f5f38080 [ 1.764605] x5 : 00007375110c151d x4 : 0000000000000000 [ 1.765081] x3 : ffff800011e8a160 x2 : ffff800011e8a180 [ 1.765558] x1 : 0000000000000000 x0 : 0000000000000000 [ 1.766036] Call trace: [ 1.766261] of_drm_find_panel+0x78/0xc8 [ 1.766614] drm_of_find_panel_or_bridge+0x6c/0xe8 [ 1.767043] dw_mipi_dsi_host_attach+0x7c/0x130 [ 1.767449] mipi_dsi_attach+0x28/0x40 [ 1.767785] panel_simple_dsi_probe+0x448/0x548 [ 1.768190] mipi_dsi_drv_probe+0x20/0x30 [ 1.768549] really_probe+0xe8/0x4d0 [ 1.768872] driver_probe_device+0xf4/0x160 [ 1.769246] __device_attach_driver+0x8c/0x118 [ 1.769644] bus_for_each_drv+0x78/0xc8 [ 1.769988] __device_attach+0xf0/0x170 [ 1.770333] device_initial_probe+0x14/0x20 [ 1.770706] bus_probe_device+0x9c/0xa8 [ 1.771051] deferred_probe_work_func+0x88/0xd8 [ 1.771457] process_one_work+0x1c0/0x4a0 [ 1.771817] worker_thread+0x1f8/0x420 [ 1.772154] kthread+0x118/0x150 [ 1.772447] ret_from_fork+0x10/0x34 [ 1.772773] Code: eb02027f d1008273 540001a0 f9400261 (f9414821) [ 1.773314] ---[ end trace 52395e7ef92f2cb0 ]--- Any hints what I might be missing out?

Nice! I've already seen your post for the legacy kernel. Do you know when you publish the post about 5.10.y?

Looking at the pictures, the touch-controller is not connected. But since its an FT5316 its not much of a hassle. I would even assume it will just run with the default FT5x06 mainline module. I'm really interested in how he got the MIPI-DSI DRM running. As soon as I just add &mipi_dsi { status = "okay"; }; the entire rockchip-drm driver stops working. HDMI, eDP nothing comes up anymore. dmesg | grep drm only outputs [ 0.694126] panfrost ff9a0000.gpu: [drm:panfrost_devfreq_init] *ERROR* Couldn't set OPP regulators [ 1.740675] [drm] Initialized panfrost 1.1.0 20180908 for ff9a0000.gpu on minor 0 without mipi_dsi enabled, everything works fine: [ 0.686797] rockchip-drm display-subsystem: bound ff8f0000.vop (ops vop_component_ops) [ 0.687611] [drm] unsupported AFBC format[3231564e] [ 0.689876] rockchip-drm display-subsystem: bound ff900000.vop (ops vop_component_ops) [ 0.695308] panfrost ff9a0000.gpu: [drm:panfrost_devfreq_init] *ERROR* Couldn't set OPP regulators [ 1.748562] rockchip-drm display-subsystem: bound ff8f0000.vop (ops vop_component_ops) [ 1.751190] rockchip-drm display-subsystem: bound ff900000.vop (ops vop_component_ops) [ 1.753993] rockchip-drm display-subsystem: bound ff940000.hdmi (ops dw_hdmi_rockchip_ops) [ 1.755134] rockchip-drm display-subsystem: [drm] Cannot find any crtc or sizes [ 1.756401] [drm] Initialized rockchip 1.0.0 20140818 for display-subsystem on minor 0 [ 1.764194] [drm] Initialized panfrost 1.1.0 20180908 for ff9a0000.gpu on minor 1

Hey, nice to see MIPI-DSI working in 5.10.y Would you mind sharing your config and devicetree? Im struggeling to get the MIPI-DSI up but the dmesg is completly silent about Mipi. It seems that isn't even loaded even tho the module is compiled and loaded and the devicetree entry is enabled.