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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"微软雅黑",sans-serif;color:black;background:white">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"微软雅黑",sans-serif;color:black;background:white"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"微软雅黑",sans-serif;color:black;background:white"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"微软雅黑",sans-serif;color:black;background:white">I just tested the latest drm-next branch on Freescale/NXP ls1021a-twr, and got some log below. And fsl-dcu not works.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"微软雅黑",sans-serif;color:black;background:white"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"微软雅黑",sans-serif;color:black;background:white">Since “drm-next” merged some branch , use git bisect had some problem ,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"微软雅黑",sans-serif;color:black;background:white"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"微软雅黑",sans-serif;color:black;background:white">so I manually checked out that “fsl-dcu” works at d761701c55a99598477f3cb25c03d939a7711e74<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"微软雅黑",sans-serif;color:black;background:white">And not works now. some log below:<o:p></o:p></span></p>
<div style="mso-element:para-border-div;border:none;border-bottom:solid windowtext 1.5pt;padding:0in 0in 1.0pt 0in">
<p class="MsoNormal" style="border:none;padding:0in"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">[drm] Initialized drm 1.1.0 20060810<o:p></o:p></p>
<p class="MsoNormal">panel supply power not found, using dummy regulator<o:p></o:p></p>
<p class="MsoNormal">[drm] Supports vblank timestamp caching Rev 2 (21.10.2013).<o:p></o:p></p>
<p class="MsoNormal">[drm] No driver support for vblank timestamp query.<o:p></o:p></p>
<p class="MsoNormal">------------[ cut here ]------------<o:p></o:p></p>
<p class="MsoNormal">WARNING: CPU: 0 PID: 1 at drivers/gpu/drm/drm_atomic_helper.c:1106 drm_atomic_helper_wait_for_vblanks+0xff/0x124<o:p></o:p></p>
<p class="MsoNormal">[CRTC:24] vblank wait timed out<o:p></o:p></p>
<p class="MsoNormal">Modules linked in:<o:p></o:p></p>
<p class="MsoNormal">CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.6.0-rc3+ #189<o:p></o:p></p>
<p class="MsoNormal">Hardware name: Freescale LS1021A<o:p></o:p></p>
<p class="MsoNormal">[<80209a7b>] (unwind_backtrace) from [<8020755f>] (show_stack+0xb/0xc)<o:p></o:p></p>
<p class="MsoNormal">[<8020755f>] (show_stack) from [<803676a3>] (dump_stack+0x5b/0x74)<o:p></o:p></p>
<p class="MsoNormal">[<803676a3>] (dump_stack) from [<80211a37>] (__warn+0x87/0xb0)<o:p></o:p></p>
<p class="MsoNormal">[<80211a37>] (__warn) from [<80211a7f>] (warn_slowpath_fmt+0x1f/0x28)<o:p></o:p></p>
<p class="MsoNormal">[<80211a7f>] (warn_slowpath_fmt) from [<803ca887>] (drm_atomic_helper_wait_for_vblanks+0xff/0x124)<o:p></o:p></p>
<p class="MsoNormal">[<803ca887>] (drm_atomic_helper_wait_for_vblanks) from [<803cb307>] (drm_atomic_helper_commit+0x43/0x5c)<o:p></o:p></p>
<p class="MsoNormal">[<803cb307>] (drm_atomic_helper_commit) from [<803cbe51>] (restore_fbdev_mode+0xad/0x16e)<o:p></o:p></p>
<p class="MsoNormal">[<803cbe51>] (restore_fbdev_mode) from [<803ccf4d>] (drm_fb_helper_restore_fbdev_mode_unlocked+0x19/0x44)<o:p></o:p></p>
<p class="MsoNormal">[<803ccf4d>] (drm_fb_helper_restore_fbdev_mode_unlocked) from [<803ccf9d>] (drm_fb_helper_set_par+0x25/0x38)<o:p></o:p></p>
<p class="MsoNormal">[<803ccf9d>] (drm_fb_helper_set_par) from [<80397451>] (fbcon_init+0x1fd/0x2c0)<o:p></o:p></p>
<p class="MsoNormal">[<80397451>] (fbcon_init) from [<803b6051>] (visual_init+0x71/0xb4)<o:p></o:p></p>
<p class="MsoNormal">[<803b6051>] (visual_init) from [<803b6f95>] (do_bind_con_driver+0x105/0x1e4)<o:p></o:p></p>
<p class="MsoNormal">[<803b6f95>] (do_bind_con_driver) from [<803b7287>] (do_take_over_console+0xcf/0x108)<o:p></o:p></p>
<p class="MsoNormal">[<803b7287>] (do_take_over_console) from [<80397549>] (do_fbcon_takeover+0x35/0x7c)<o:p></o:p></p>
<p class="MsoNormal">[<80397549>] (do_fbcon_takeover) from [<802229db>] (notifier_call_chain+0x23/0x38)<o:p></o:p></p>
<p class="MsoNormal">[<802229db>] (notifier_call_chain) from [<80222b63>] (__blocking_notifier_call_chain+0x27/0x36)<o:p></o:p></p>
<p class="MsoNormal">[<80222b63>] (__blocking_notifier_call_chain) from [<80222b81>] (blocking_notifier_call_chain+0xf/0x14)<o:p></o:p></p>
<p class="MsoNormal">[<80222b81>] (blocking_notifier_call_chain) from [<8039bdf9>] (register_framebuffer+0x179/0x1d0)<o:p></o:p></p>
<p class="MsoNormal">[<8039bdf9>] (register_framebuffer) from [<803cd15f>] (drm_fb_helper_initial_config+0x1af/0x200)<o:p></o:p></p>
<p class="MsoNormal">[<803cd15f>] (drm_fb_helper_initial_config) from [<803cd593>] (drm_fbdev_cma_init+0x67/0xa8)<o:p></o:p></p>
<p class="MsoNormal">[<803cd593>] (drm_fbdev_cma_init) from [<803e2269>] (fsl_dcu_fbdev_init+0x11/0x14)<o:p></o:p></p>
<p class="MsoNormal">[<803e2269>] (fsl_dcu_fbdev_init) from [<803e18eb>] (fsl_dcu_load+0x81/0xba)<o:p></o:p></p>
<p class="MsoNormal">[<803e18eb>] (fsl_dcu_load) from [<803d2d51>] (drm_dev_register+0x3d/0x68)<o:p></o:p></p>
<p class="MsoNormal">[<803d2d51>] (drm_dev_register) from [<803e1ab7>] (fsl_dcu_drm_probe+0x193/0x240)<o:p></o:p></p>
<p class="MsoNormal">[<803e1ab7>] (fsl_dcu_drm_probe) from [<803e6d2d>] (platform_drv_probe+0x33/0x62)<o:p></o:p></p>
<p class="MsoNormal">[<803e6d2d>] (platform_drv_probe) from [<803e5e7d>] (driver_probe_device+0xb9/0x1a4)<o:p></o:p></p>
<p class="MsoNormal">[<803e5e7d>] (driver_probe_device) from [<803e5fad>] (__driver_attach+0x45/0x58)<o:p></o:p></p>
<p class="MsoNormal">[<803e5fad>] (__driver_attach) from [<803e4eeb>] (bus_for_each_dev+0x3b/0x46)<o:p></o:p></p>
<p class="MsoNormal">[<803e4eeb>] (bus_for_each_dev) from [<803e5897>] (bus_add_driver+0x7b/0x138)<o:p></o:p></p>
<p class="MsoNormal">[<803e5897>] (bus_add_driver) from [<803e6469>] (driver_register+0x4b/0x76)<o:p></o:p></p>
<p class="MsoNormal">[<803e6469>] (driver_register) from [<80201517>] (do_one_initcall+0xb3/0x138)<o:p></o:p></p>
<p class="MsoNormal">[<80201517>] (do_one_initcall) from [<80800a61>] (kernel_init_freeable+0xd1/0x168)<o:p></o:p></p>
<p class="MsoNormal">[<80800a61>] (kernel_init_freeable) from [<80558d13>] (kernel_init+0x7/0xb4)<o:p></o:p></p>
<p class="MsoNormal">[<80558d13>] (kernel_init) from [<80205261>] (ret_from_fork+0x11/0x30)<o:p></o:p></p>
<p class="MsoNormal">---[ end trace b7946726c4e290c4 ]---<o:p></o:p></p>
<p class="MsoNormal">Console: switching to colour frame buffer device 60x34<o:p></o:p></p>
<p class="MsoNormal">fsl-dcu 2ce0000.dcu: fb0: frame buffer device<o:p></o:p></p>
<div style="mso-element:para-border-div;border:none;border-bottom:solid windowtext 1.5pt;padding:0in 0in 1.0pt 0in">
<p class="MsoNormal" style="border:none;padding:0in">[drm] Initialized fsl-dcu-drm 1.1.0 20160425 on minor 0<o:p></o:p></p>
<p class="MsoNormal" style="border:none;padding:0in"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">And full log in the attachment.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">does anybody have any idea about this?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Best Regards,<o:p></o:p></p>
<p class="MsoNormal">Meng Yi<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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