Hello, kernel: v4.20-rc4 DTB: qcom/msm8998-mtp defconfig: platform defconfig minus lots of stuff to make kernel smaller When I boot v4.20-rc4 on my APQ8098-based board, the clk driver prints the following warnings. (Because they are not powered up yet?) [ 1.817128] ------------[ cut here ]------------ [ 1.820756] gcc_ufs_rx_symbol_1_clk status stuck at 'on' [ 1.820789] WARNING: CPU: 3 PID: 1 at drivers/clk/qcom/clk-branch.c:92 clk_branch_toggle+0x190/0x1b0 [ 1.830753] Modules linked in: [ 1.839852] CPU: 3 PID: 1 Comm: swapper/0 Tainted: G S 4.20.0-rc4 #13 [ 1.842728] Hardware name: Qualcomm Technologies, Inc. MSM8998 v1 MTP (DT) [ 1.850625] pstate: 60000085 (nZCv daIf -PAN -UAO) [ 1.857302] pc : clk_branch_toggle+0x190/0x1b0 [ 1.862074] lr : clk_branch_toggle+0x190/0x1b0 [ 1.866500] sp : ffff00000807bcf0 [ 1.870923] x29: ffff00000807bcf0 x28: 0000000000000008 [ 1.874316] x27: ffff0000089ba070 x26: ffff000008946490 [ 1.879697] x25: ffff0000088c26e0 x24: 0000000000000000 [ 1.884992] x23: ffff000009137480 x22: ffff000008412120 [ 1.890287] x21: 0000000000000000 x20: 0000000000000000 [ 1.895583] x19: ffff0000090e9000 x18: ffffffffffffffff [ 1.900878] x17: 0000000000000000 x16: 0000000000000000 [ 1.906173] x15: ffff0000090e9648 x14: ffff000089191187 [ 1.911468] x13: ffff000009191195 x12: ffff0000090fb000 [ 1.916763] x11: ffff00000807bcf0 x10: ffff00000807bcf0 [ 1.922058] x9 : ffff00000807bcf0 x8 : 207461206b637574 [ 1.927353] x7 : 7320737574617473 x6 : ffff000009190c8c [ 1.932648] x5 : 0000000000000000 x4 : 0000000000000000 [ 1.937944] x3 : ffffffffffffffff x2 : 00008000f5260000 [ 1.943241] x1 : e0dbf26541ede800 x0 : 0000000000000000 [ 1.948535] Call trace: [ 1.953822] clk_branch_toggle+0x190/0x1b0 [ 1.955998] clk_branch2_disable+0x18/0x20 [ 1.960167] clk_disable_unused_subtree+0xc4/0xe0 [ 1.964246] clk_disable_unused+0x3c/0x130 [ 1.969020] do_one_initcall+0x5c/0x180 [ 1.973015] kernel_init_freeable+0x198/0x244 [ 1.976748] kernel_init+0x10/0x110 [ 1.981255] ret_from_fork+0x10/0x20 [ 1.984555] ---[ end trace 04df2db406d24e2c ]--- [ 1.988702] ------------[ cut here ]------------ [ 1.992977] gcc_ufs_rx_symbol_0_clk status stuck at 'on' [ 1.992997] WARNING: CPU: 3 PID: 1 at drivers/clk/qcom/clk-branch.c:92 clk_branch_toggle+0x190/0x1b0 [ 2.002888] Modules linked in: [ 2.011983] CPU: 3 PID: 1 Comm: swapper/0 Tainted: G S W 4.20.0-rc4 #13 [ 2.014862] Hardware name: Qualcomm Technologies, Inc. MSM8998 v1 MTP (DT) [ 2.022760] pstate: 60000085 (nZCv daIf -PAN -UAO) [ 2.029436] pc : clk_branch_toggle+0x190/0x1b0 [ 2.034211] lr : clk_branch_toggle+0x190/0x1b0 [ 2.038636] sp : ffff00000807bcf0 [ 2.043059] x29: ffff00000807bcf0 x28: 0000000000000008 [ 2.046452] x27: ffff0000089ba070 x26: ffff000008946490 [ 2.051833] x25: ffff0000088c2710 x24: 0000000000000000 [ 2.057128] x23: ffff0000091374e8 x22: ffff000008412120 [ 2.062423] x21: 0000000000000000 x20: 0000000000000000 [ 2.067718] x19: ffff0000090e9000 x18: ffffffffffffffff [ 2.073013] x17: 0000000000000000 x16: 0000000000000000 [ 2.078308] x15: ffff0000090e9648 x14: ffff000089191187 [ 2.083603] x13: ffff000009191195 x12: ffff0000090fb000 [ 2.088899] x11: ffff00000807bcf0 x10: ffff00000807bcf0 [ 2.094194] x9 : ffff00000807bcf0 x8 : 207461206b637574 [ 2.099489] x7 : 7320737574617473 x6 : ffff000009190c8c [ 2.104786] x5 : 0000000000000000 x4 : 0000000000000000 [ 2.110079] x3 : ffffffffffffffff x2 : 00008000f5260000 [ 2.115375] x1 : e0dbf26541ede800 x0 : 0000000000000000 [ 2.120670] Call trace: [ 2.125957] clk_branch_toggle+0x190/0x1b0 [ 2.128134] clk_branch2_disable+0x18/0x20 [ 2.132298] clk_disable_unused_subtree+0xc4/0xe0 [ 2.136382] clk_disable_unused+0x3c/0x130 [ 2.141153] do_one_initcall+0x5c/0x180 [ 2.145146] kernel_init_freeable+0x198/0x244 [ 2.148882] kernel_init+0x10/0x110 [ 2.153390] ret_from_fork+0x10/0x20 [ 2.156689] ---[ end trace 04df2db406d24e2d ]--- [ 2.160880] ------------[ cut here ]------------ [ 2.165113] gcc_gpu_bimc_gfx_clk status stuck at 'on' [ 2.165131] WARNING: CPU: 3 PID: 1 at drivers/clk/qcom/clk-branch.c:92 clk_branch_toggle+0x190/0x1b0 [ 2.174674] Modules linked in: [ 2.183859] CPU: 3 PID: 1 Comm: swapper/0 Tainted: G S W 4.20.0-rc4 #13 [ 2.186737] Hardware name: Qualcomm Technologies, Inc. MSM8998 v1 MTP (DT) [ 2.194635] pstate: 60000085 (nZCv daIf -PAN -UAO) [ 2.201311] pc : clk_branch_toggle+0x190/0x1b0 [ 2.206084] lr : clk_branch_toggle+0x190/0x1b0 [ 2.210511] sp : ffff00000807bcf0 [ 2.214935] x29: ffff00000807bcf0 x28: 0000000000000008 [ 2.218327] x27: ffff0000089ba070 x26: ffff000008946490 [ 2.223708] x25: ffff0000088c2d68 x24: 0000000000000000 [ 2.229003] x23: ffff000009138368 x22: ffff000008412120 [ 2.234298] x21: 0000000000000000 x20: 0000000000000000 [ 2.239594] x19: ffff0000090e9000 x18: ffffffffffffffff [ 2.244889] x17: 0000000000000000 x16: 0000000000000000 [ 2.250184] x15: ffff0000090e9648 x14: ffff000089191187 [ 2.255479] x13: ffff000009191195 x12: ffff0000090fb000 [ 2.260774] x11: ffff00000807bcf0 x10: ffff00000807bcf0 [ 2.266069] x9 : ffff00000807bcf0 x8 : 6e6f27207461206b [ 2.271364] x7 : 6375747320737574 x6 : ffff000009190c89 [ 2.276659] x5 : 0000000000000000 x4 : 0000000000000000 [ 2.281954] x3 : ffffffffffffffff x2 : 00008000f5260000 [ 2.287249] x1 : e0dbf26541ede800 x0 : 0000000000000000 [ 2.292544] Call trace: [ 2.297831] clk_branch_toggle+0x190/0x1b0 [ 2.300008] clk_branch2_disable+0x18/0x20 [ 2.304175] clk_disable_unused_subtree+0xc4/0xe0 [ 2.308256] clk_disable_unused+0x3c/0x130 [ 2.313027] do_one_initcall+0x5c/0x180 [ 2.317020] kernel_init_freeable+0x198/0x244 [ 2.320756] kernel_init+0x10/0x110 [ 2.325266] ret_from_fork+0x10/0x20 [ 2.328564] ---[ end trace 04df2db406d24e2e ]--- Another (totally unrelated) warning is: CPU features: SANITY CHECK: Unexpected variation in SYS_ID_AA64MMFR0_EL1. Boot CPU: 0x00000000001122, CPU4: 0x00000000101122 Is that bad, doctor? Regards.