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Hi all, I need an advice for the following DRM MSM initialization problem: drm/msm/msm_drv.c msm_pdev_probe() fails with the following message (screenshot below) [ 54.833779] irq: no irq domain found for /soc/mdss@1a00000 ! [ 54.839019] CPU: 6 PID: 1132 Comm: modprobe Tainted: G W 3.18.31 #1 [ 54.846271] Hardware name: Qualcomm Technologies, Inc. (DT) [ 54.852868] Call trace: [ 54.855307] [<ffffffc000089b14>] dump_backtrace+0x0/0x270 [ 54.860682] [<ffffffc000089d98>] show_stack+0x14/0x1c [ 54.865718] [<ffffffc000d8706c>] dump_stack+0x80/0xa4 [ 54.870752] [<ffffffc0000fb428>] irq_create_of_mapping+0xb4/0x1a8 [ 54.876831] [<ffffffc0008bf9a0>] irq_of_parse_and_map+0x30/0x58 [ 54.882731] [<ffffffc0008bf9f8>] of_irq_to_resource+0x30/0xd8 [ 54.888459] [<ffffffc0008bfad8>] of_irq_to_resource_table+0x38/0x5c [ 54.894711] [<ffffffc0008bc92c>] of_device_alloc+0x118/0x1a0 [ 54.900351] [<ffffffc0008bca08>] of_platform_device_create_pdata+0x54/0xd8 [ 54.907209] [<ffffffc0008bcd68>] of_platform_bus_create+0x2c0/0x398 [ 54.913459] [<ffffffc0008bcfbc>] of_platform_populate+0x70/0xac [ 54.919521] [<ffffffbffc133148>] msm_pdev_probe+0x68/0x2e8 [msm] [ 54.925355] [<ffffffc0004ba35c>] platform_drv_probe+0x38/0x84 [ 54.931081] [<ffffffc0004b8558>] driver_probe_device+0x164/0x370 [ 54.937071] [<ffffffc0004b8814>] __driver_attach+0x64/0x90 [ 54.942539] [<ffffffc0004b7400>] bus_for_each_dev+0x80/0xb0 [ 54.948094] [<ffffffc0004b7ee4>] driver_attach+0x20/0x28 [ 54.953390] [<ffffffc0004b7b28>] bus_add_driver+0x128/0x200 [ 54.958945] [<ffffffc0004b9228>] driver_register+0x100/0x184 [ 54.964588] [<ffffffc0004ba2a4>] __platform_driver_register+0x60/0x68 [ 54.971134] [<ffffffbffc172210>] msm_drm_register+0xb8/0x100 [msm] [ 54.977175] [<ffffffc000082b38>] do_one_initcall+0x1a0/0x1bc [ 54.982819] [<ffffffc0001217ac>] load_module+0xdb0/0x1430 [ 54.988199] [<ffffffc00012205c>] SyS_finit_module+0xd4/0xec Actually, the of_platform_populate() calls from msm_pdev_probe()->add_display_components(). The MDSS IRQ domain is not initialized at this time because it will initialize later (drm/msm/mdp/mdp5/mdp5_mdss.c, mdss_irq_domain_init()), via call component_master_add_with_match() AFTER this error happen .. Is it a some “trick” for init the IRQ domain early? Thanks, Dmitriy Antonets |
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