While booting stable-rc 4.14 branch kernel this warning was noticed on Qualcomm APQ 8016 SBC (DT) Dragonboard 410c device.
[ 8.459580] clk: failed to reparent byte0_clk_src to dsi0pllbyte: -22 [ 8.459724] clk: failed to reparent pclk0_clk_src to dsi0pll: -22 [ 8.466474] msm 1a00000.mdss: Using legacy clk name binding. Use "iface" instead of "iface_clk" [ 8.476753] msm 1a00000.mdss: Using legacy clk name binding. Use "bus" instead of "bus_clk" [ 8.480055] msm 1a00000.mdss: Using legacy clk name binding. Use "vsync" instead of "vsync_clk" [ 8.489023] msm 1a00000.mdss: 1a00000.mdss supply vdd not found, using dummy regulator [ 8.498450] msm_mdp 1a01000.mdp: Using legacy clk name binding. Use "bus" instead of "bus_clk" [ 8.505394] msm_mdp 1a01000.mdp: Using legacy clk name binding. Use "iface" instead of "iface_clk" [ 8.524724] msm_mdp 1a01000.mdp: Using legacy clk name binding. Use "core" instead of "core_clk" [ 8.524877] msm_mdp 1a01000.mdp: Using legacy clk name binding. Use "vsync" instead of "vsync_clk"[ 8.532846] ------------[ cut here ]------------ [ 8.541651] WARNING: CPU: 1 PID: 32 at /usr/src/kernel/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.h:178 mdp5_bind+0x418/0x4e0 [msm] [ 8.546303] Modules linked in: crc32_ce adv7511 rfkill msm mdt_loader drm_kms_helper drm msm_rng rng_core fuse [ 8.557504] CPU: 1 PID: 32 Comm: kworker/1:1 Not tainted 4.14.176-rc1 #1 [ 8.567478] Hardware name: Qualcomm Technologies, Inc. APQ 8016 SBC (DT) [ 8.574344] Workqueue: events deferred_probe_work_func [ 8.581018] task: ffff80003d764680 task.stack: ffff00000a4c0000 [ 8.586178] PC is at mdp5_bind+0x418/0x4e0 [msm] [ 8.591989] LR is at mdp5_bind+0x1b4/0x4e0 [msm] [ 8.596644] pc : [<ffff000000ebd6f8>] lr : [<ffff000000ebd494>] pstate: 60000145 [ 8.601246] sp : ffff00000a4c39d0 [ 8.608617] x29: ffff00000a4c39d0 x28: 0000000000000000 [ 8.611832] x27: ffff800037db4a00 x26: ffff000000eec9e8 [ 8.617214] x25: ffff800037e28000 x24: ffff800037dc3810 [ 8.622509] x23: ffff800037ca7000 x22: ffff00000a22e4b0 [ 8.627805] x21: ffff800037dc3800 x20: 0000000000000000 [ 8.633100] x19: ffff80003a8c2880 x18: 0000000000000010 [ 8.638395] x17: 0000ffffb6f9ba28 x16: ffff0000082fd6e0 [ 8.643691] x15: ffffffffffffffff x14: ffffffffffffffff [ 8.648986] x13: 0000000000000000 x12: 00000000e3d3f2dc [ 8.654280] x11: ffff80003d764eb0 x10: ffff00000a200000 [ 8.659576] x9 : fffffffffffffffe x8 : 0000000000000000 [ 8.664871] x7 : ffff0000087c908c x6 : 0000000000000000 [ 8.670167] x5 : 0000000000000040 x4 : 0000000000000004 [ 8.675461] x3 : fffffffffffffeb0 x2 : ffff000009d5f1a0 [ 8.680755] x1 : ffff80003d764680 x0 : 0000000000000000 [ 8.686052] Call trace: [ 8.691346] Exception stack(0xffff00000a4c3890 to 0xffff00000a4c39d0) [ 8.693521] 3880: 0000000000000000 ffff80003d764680 [ 8.700120] 38a0: ffff000009d5f1a0 fffffffffffffeb0 0000000000000004 0000000000000040 [ 8.707934] 38c0: 0000000000000000 ffff0000087c908c 0000000000000000 fffffffffffffffe [ 8.715746] 38e0: ffff00000a200000 ffff80003d764eb0 00000000e3d3f2dc 0000000000000000 [ 8.723558] 3900: ffffffffffffffff ffffffffffffffff ffff0000082fd6e0 0000ffffb6f9ba28 [ 8.731372] 3920: 0000000000000010 ffff80003a8c2880 0000000000000000 ffff800037dc3800 [ 8.739183] 3940: ffff00000a22e4b0 ffff800037ca7000 ffff800037dc3810 ffff800037e28000 [ 8.746997] 3960: ffff000000eec9e8 ffff800037db4a00 0000000000000000 ffff00000a4c39d0 [ 8.754809] 3980: ffff000000ebd494 ffff00000a4c39d0 ffff000000ebd6f8 0000000060000145 [ 8.762622] 39a0: ffff00000a4c39d0 ffff000000ebd494 ffffffffffffffff 0000000000000000 [ 8.770431] 39c0: ffff00000a4c39d0 ffff000000ebd6f8 [ 8.778452] [<ffff000000ebd6f8>] mdp5_bind+0x418/0x4e0 [msm] [ 8.782937] [<ffff0000087b304c>] component_bind_all+0x104/0x298 [ 8.789040] [<ffff000000ec8348>] msm_drm_bind+0x140/0x5f0 [msm] [ 8.794481] [<ffff0000087b2c70>] try_to_bring_up_master+0x180/0x1e0 [ 8.800380] [<ffff0000087b2d78>] component_add+0xa8/0x170 [ 8.806845] [<ffff000000ed3c54>] dsi_dev_probe+0x24/0x38 [msm] [ 8.812199] [<ffff0000087bc798>] platform_drv_probe+0x60/0xc0 [ 8.817913] [<ffff0000087b9e70>] driver_probe_device+0x218/0x2e0 [ 8.823730] [<ffff0000087ba0b4>] __device_attach_driver+0xa4/0xf0 [ 8.829810] [<ffff0000087b7cfc>] bus_for_each_drv+0x5c/0xa8 [ 8.835797] [<ffff0000087b9ad8>] __device_attach+0xd0/0x148 [ 8.841177] [<ffff0000087ba17c>] device_initial_probe+0x24/0x30 [ 8.846734] [<ffff0000087b8e80>] bus_probe_device+0xa0/0xa8 [ 8.852638] [<ffff0000087b937c>] deferred_probe_work_func+0xac/0x158 [ 8.858195] [<ffff00000810a558>] process_one_work+0x278/0x790 [ 8.864800] [<ffff00000810aac0>] worker_thread+0x50/0x480 [ 8.870441] [<ffff000008112570>] kthread+0x138/0x140 [ 8.875823] [<ffff000008085be4>] ret_from_fork+0x10/0x1c [ 8.880846] ---[ end trace 73f4fbf7f1caf3f2 ]--- [ 8.886661] msm 1a00000.mdss: bound 1a01000.mdp (ops mdp5_ops [msm]) [ 8.891128] msm_dsi 1a98000.dsi: 1a98000.dsi supply gdsc not found, using dummy regulator [ 8.897939] ------------[ cut here ]------------ [ 8.905384] WARNING: CPU: 1 PID: 2210 at /usr/src/kernel/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c:253 mdp5_disable+0xa0/0xb8 [msm] [ 8.909846] Modules linked in: crc32_ce adv7511 rfkill msm mdt_loader drm_kms_helper drm msm_rng rng_core fuse [ 8.921401] CPU: 1 PID: 2210 Comm: kworker/1:2 Tainted: G W 4.14.176-rc1 #1 [ 8.931289] Hardware name: Qualcomm Technologies, Inc. APQ 8016 SBC (DT) [ 8.939543] Workqueue: pm pm_runtime_work [ 8.946206] task: ffff80003a9c4680 task.stack: ffff00000e750000 [ 8.950335] PC is at mdp5_disable+0xa0/0xb8 [msm] [ 8.956054] LR is at mdp5_disable+0x28/0xb8 [msm] [ 8.960705] pc : [<ffff000000ebd960>] lr : [<ffff000000ebd8e8>] pstate: 40000145 [ 8.965394] sp : ffff00000e753c10 [ 8.972863] x29: ffff00000e753c10 x28: 0000000000000000 [ 8.976068] x27: ffff00000948a000 x26: ffff00000813eba8 [ 8.981451] x25: ffff00000e753d70 x24: 0000000000000000 [ 8.986744] x23: ffff0000087c5138 x22: 0000000000000000 [ 8.992049] x21: 000000000000000a x20: ffff800037dc3940 [ 8.997344] x19: ffff80003a8c2880 x18: 0000000000000010 [ 9.002640] x17: 0000ffffb6f9ba28 x16: ffff0000082fd6e0 [ 9.007926] x15: ffffffffffffffff x14: 0000000000000001 [ 9.013222] x13: 0000000000000010 x12: 000000002cdf788f [ 9.018516] x11: ffff80003a9c4eb0 x10: ffff00000a200000 [ 9.023820] x9 : ffff00000e753d60 x8 : 0000000000000000 [ 9.029114] x7 : ffff0000087c9d6c x6 : 0000000000000000 [ 9.034416] x5 : 0000000000000040 x4 : 0000000000000002 [ 9.039704] x3 : fffffffffffffeb0 x2 : ffff000000eec9e0 [ 9.045000] x1 : 0000000000000002 x0 : 00000000ffffffff [ 9.050294] Call trace: [ 9.055582] Exception stack(0xffff00000e753ad0 to 0xffff00000e753c10) [ 9.057764] 3ac0: 00000000ffffffff 0000000000000002 [ 9.064357] 3ae0: ffff000000eec9e0 fffffffffffffeb0 0000000000000002 0000000000000040 [ 9.072171] 3b00: 0000000000000000 ffff0000087c9d6c 0000000000000000 ffff00000e753d60 [ 9.079981] 3b20: ffff00000a200000 ffff80003a9c4eb0 000000002cdf788f 0000000000000010 [ 9.087795] 3b40: 0000000000000001 ffffffffffffffff ffff0000082fd6e0 0000ffffb6f9ba28 [ 9.095607] 3b60: 0000000000000010 ffff80003a8c2880 ffff800037dc3940 000000000000000a [ 9.103419] 3b80: 0000000000000000 ffff0000087c5138 0000000000000000 ffff00000e753d70 [ 9.111231] 3ba0: ffff00000813eba8 ffff00000948a000 0000000000000000 ffff00000e753c10 [ 9.119045] 3bc0: ffff000000ebd8e8 ffff00000e753c10 ffff000000ebd960 0000000040000145 [ 9.126856] 3be0: ffff80003a9c4680 fffffffffffffeb0 ffffffffffffffff 0000000000000040 [ 9.134668] 3c00: ffff00000e753c10 ffff000000ebd960 [ 9.142691] [<ffff000000ebd960>] mdp5_disable+0xa0/0xb8 [msm] [ 9.147383] [<ffff000000ebd9ac>] mdp5_runtime_suspend+0x34/0x50 [msm] [ 9.153076] [<ffff0000087c5174>] pm_generic_runtime_suspend+0x3c/0x58 [ 9.159496] [<ffff0000087c9220>] __rpm_callback+0xe8/0x270 [ 9.165919] [<ffff0000087c93dc>] rpm_callback+0x34/0xa0 [ 9.171968] [<ffff0000087c7c18>] rpm_suspend+0x100/0x6e8 [ 9.171988] [<ffff0000087c9dc8>] pm_runtime_work+0x80/0xc0 [ 9.181980] [<ffff00000810a558>] process_one_work+0x278/0x790 [ 9.187271] [<ffff00000810aac0>] worker_thread+0x50/0x480 [ 9.193091] [<ffff000008112570>] kthread+0x138/0x140 [ 9.198470] [<ffff000008085be4>] ret_from_fork+0x10/0x1c [ 9.203502] ---[ end trace 73f4fbf7f1caf3f3 ]--- [ 9.209101] msm_dsi 1a98000.dsi: 1a98000.dsi supply gdsc not found, using dummy regulator [ 9.215441] msm_dsi_host_set_src_pll: can't set parent to byte_clk_src. ret=-22 [ 9.221596] msm_dsi_manager_register: failed to register mipi dsi host# [ 9.230109] msm 1a00000.mdss: failed to bind 1a98000.dsi (ops dsi_ops [msm]): -22 [ 9.237107] msm 1a00000.mdss: master bind failed: -22 [ 9.243823] msm_dsi: probe of 1a98000.dsi failed with error -22
metadata: git branch: linux-4.14.y git repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git kernel-config: http://snapshots.linaro.org/openembedded/lkft/lkft/sumo/dragonboard-410c/lkf...
full test log, https://lkft.validation.linaro.org/scheduler/job/1360268#L3514
git log --oneline drivers/gpu/drm | head 89e30bb46074 drm/msm/dsi: save pll state before dsi host is powered off 892afde0f4a1 drm: msm: Fix return type of dsi_mgr_connector_mode_valid for kCFI 3824b96e06cc drm/msm/mdp5: rate limit pp done timeout warnings b67d1c342e13 drm/i915/gvt: Separate display reset from ALL_ENGINES reset 313810964cac drm/msm: Set dma maximum segment size for mdss edae04b8f463 drm/amdgpu/soc15: fix xclk for raven 3e85259525a1 radeon: insert 10ms sleep in dce5_crtc_load_lut b06d001e8831 drm/nouveau/disp/nv50-: prevent oops when no channel method map provided e7f9d07dcc42 drm/vmwgfx: prevent memory leak in vmw_cmdbuf_res_add bf24b7d69aea drm/nouveau: Fix copy-paste error in nouveau_fence_wait_uevent_handler