Hi Tony, On Sat, Jun 13, 2020 at 09:02:42AM -0700, Tony Lindgren wrote: > * Adam Ford <aford173@xxxxxxxxx> [200613 02:28]: > > Is anyone else having DSS failures on the 5.7 stable branch using an > > omap3 board? > > > > I haven't had time to bisect yet, but before I do I thought I'd ask. > > Sounds this might be caused by some panel related between v5.6 and v5.7, > so adding Laurent to Cc. > > We also started dropping legacy platform data for some SoCs, but that > should not affect omap3 so far. I think this is caused by the panel driver not setting the connector type. Only the panel-simple driver should be affected, fixing this should just be a matter of setting .connector_type = DRM_MODE_CONNECTOR_DPI for the appropriate panel_desc entry. > > 10.370574] ------------[ cut here ]------------ > > [ 10.375335] WARNING: CPU: 0 PID: 71 at > > drivers/gpu/drm/bridge/panel.c:176 drm_panel_bridge_add+0x40/0x4c > > [drm_kms_helper] > > [ 10.386474] Modules linked in: joydev mousedev evdev leds_gpio > > pwm_bl panel_simple snd_soc_omap_twl4030 pwm_omap_dmtimer led_class > > gpio_keys cpufreq_dt snd_soc_omap_mcbsp bq27xxx_battery_hdq > > snd_soc_ti_sdma bq27xxx_battery omap_wdt omap3_isp > > videobuf2_dma_contig videobuf2_memops omap_hdq videobuf2_v4l2 > > omap_sham videobuf2_common v4l2_fwnode wire cn hwmon mt9p031 > > aptina_pll phy_twl4030_usb omap_aes_driver omap2430 crypto_engine > > omap_crypto musb_hdrc hci_uart omap_rng btbcm wlcore_sdio udc_core > > rng_core videodev omap_mailbox mc usbcore snd_soc_twl4030 twl4030_wdt > > usb_common watchdog rtc_twl snd_soc_core snd_pcm_dmaengine bluetooth > > snd_pcm snd_timer twl4030_pwrbutton snd omapdss pwm_twl_led > > twl4030_charger ecdh_generic soundcore ecc omapdss_base industrialio > > libaes pwm_twl drm_kms_helper tsc2004 at24 tsc200x_core cfbfillrect > > omap_ssi syscopyarea cfbimgblt hsi sysfillrect sysimgblt fb_sys_fops > > cfbcopyarea drm drm_panel_orientation_quirks cec > > [ 10.470123] CPU: 0 PID: 71 Comm: kworker/0:3 Not tainted 5.7.2-dirty #2 > > [ 10.476776] Hardware name: Generic OMAP36xx (Flattened Device Tree) > > [ 10.483093] Workqueue: events deferred_probe_work_func > > [ 10.488281] [<c01119f8>] (unwind_backtrace) from [<c010ba28>] > > (show_stack+0x10/0x14) > > [ 10.496063] [<c010ba28>] (show_stack) from [<c054dd30>] > > (dump_stack+0xc0/0xdc) > > [ 10.503326] [<c054dd30>] (dump_stack) from [<c01389f4>] (__warn+0xc0/0xf8) > > [ 10.510223] [<c01389f4>] (__warn) from [<c0138d8c>] > > (warn_slowpath_fmt+0x5c/0xc0) > > [ 10.517822] [<c0138d8c>] (warn_slowpath_fmt) from [<bf0d4810>] > > (drm_panel_bridge_add+0x40/0x4c [drm_kms_helper]) > > [ 10.528106] [<bf0d4810>] (drm_panel_bridge_add [drm_kms_helper]) > > from [<bf1258fc>] (omapdss_device_init_output+0x7c/0x780 > > [omapdss_base]) > > [ 10.540618] [<bf1258fc>] (omapdss_device_init_output > > [omapdss_base]) from [<bf14aecc>] (dpi_init_port+0x188/0x288 > > [omapdss]) > > [ 10.551971] [<bf14aecc>] (dpi_init_port [omapdss]) from > > [<bf142240>] (dss_probe+0x29c/0x578 [omapdss]) > > [ 10.561370] [<bf142240>] (dss_probe [omapdss]) from [<c063dd0c>] > > (platform_drv_probe+0x48/0x98) > > [ 10.570129] [<c063dd0c>] (platform_drv_probe) from [<c063bce4>] > > (really_probe+0x1d8/0x344) > > [ 10.578430] [<c063bce4>] (really_probe) from [<c063bf60>] > > (driver_probe_device+0x5c/0x164) > > [ 10.586730] [<c063bf60>] (driver_probe_device) from [<c063a128>] > > (bus_for_each_drv+0x80/0xcc) > > [ 10.595306] [<c063a128>] (bus_for_each_drv) from [<c063ba90>] > > (__device_attach+0xd4/0x148) > > [ 10.603607] [<c063ba90>] (__device_attach) from [<c063adfc>] > > (bus_probe_device+0x84/0x8c) > > [ 10.611816] [<c063adfc>] (bus_probe_device) from [<c063b288>] > > (deferred_probe_work_func+0x60/0x8c) > > [ 10.620819] [<c063b288>] (deferred_probe_work_func) from > > [<c01553b4>] (process_one_work+0x1ec/0x530) > > [ 10.630004] [<c01553b4>] (process_one_work) from [<c0155728>] > > (worker_thread+0x30/0x558) > > [ 10.638153] [<c0155728>] (worker_thread) from [<c015c048>] > > (kthread+0x134/0x148) > > [ 10.645568] [<c015c048>] (kthread) from [<c0100168>] > > (ret_from_fork+0x14/0x2c) > > [ 10.652832] Exception stack(0xcc84bfb0 to 0xcc84bff8) > > [ 10.657897] bfa0: 00000000 > > 00000000 00000000 00000000 > > [ 10.666137] bfc0: 00000000 00000000 00000000 00000000 00000000 > > 00000000 00000000 00000000 > > [ 10.674346] bfe0: 00000000 00000000 00000000 00000000 00000013 00000000 > > [ 10.681060] ---[ end trace 9571aa0bd994d08b ]--- > > [ 10.967132] cfg80211: Loading compiled-in X.509 certificates for > > regulatory database > > [ 11.284881] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7' > > [ 11.867645] ------------[ cut here ]------------ > > [ 11.872619] WARNING: CPU: 0 PID: 15 at > > drivers/gpu/drm/bridge/panel.c:176 drm_panel_bridge_add+0x40/0x4c > > [drm_kms_helper] > > [ 11.883819] Modules linked in: wl12xx wlcore mac80211 libarc4 > > sha256_generic libsha256 sha256_arm cfg80211 joydev mousedev evdev > > leds_gpio pwm_bl panel_simple snd_soc_omap_twl4030 pwm_omap_dmtimer > > led_class gpio_keys cpufreq_dt snd_soc_omap_mcbsp bq27xxx_battery_hdq > > snd_soc_ti_sdma bq27xxx_battery omap_wdt omap3_isp > > videobuf2_dma_contig videobuf2_memops omap_hdq videobuf2_v4l2 > > omap_sham videobuf2_common v4l2_fwnode wire cn hwmon mt9p031 > > aptina_pll phy_twl4030_usb omap_aes_driver omap2430 crypto_engine > > omap_crypto musb_hdrc hci_uart omap_rng btbcm wlcore_sdio udc_core > > rng_core videodev omap_mailbox mc usbcore snd_soc_twl4030 twl4030_wdt > > usb_common watchdog rtc_twl snd_soc_core snd_pcm_dmaengine bluetooth > > snd_pcm snd_timer twl4030_pwrbutton snd omapdss pwm_twl_led > > twl4030_charger ecdh_generic soundcore ecc omapdss_base industrialio > > libaes pwm_twl drm_kms_helper tsc2004 at24 tsc200x_core cfbfillrect > > omap_ssi syscopyarea cfbimgblt hsi sysfillrect sysimgblt fb_sys_fops > > cfbcopyarea drm > > [ 11.884246] drm_panel_orientation_quirks cec > > [ 11.976013] CPU: 0 PID: 15 Comm: kworker/0:1 Tainted: G W > > 5.7.2-dirty #2 > > [ 11.984069] Hardware name: Generic OMAP36xx (Flattened Device Tree) > > [ 11.990417] Workqueue: events deferred_probe_work_func > > [ 11.995635] [<c01119f8>] (unwind_backtrace) from [<c010ba28>] > > (show_stack+0x10/0x14) > > [ 12.003448] [<c010ba28>] (show_stack) from [<c054dd30>] > > (dump_stack+0xc0/0xdc) > > [ 12.010742] [<c054dd30>] (dump_stack) from [<c01389f4>] (__warn+0xc0/0xf8) > > [ 12.017669] [<c01389f4>] (__warn) from [<c0138d8c>] > > (warn_slowpath_fmt+0x5c/0xc0) > > [ 12.025360] [<c0138d8c>] (warn_slowpath_fmt) from [<bf0d4810>] > > (drm_panel_bridge_add+0x40/0x4c [drm_kms_helper]) > > [ 12.035766] [<bf0d4810>] (drm_panel_bridge_add [drm_kms_helper]) > > from [<bf1258fc>] (omapdss_device_init_output+0x7c/0x780 > > [omapdss_base]) > > [ 12.048400] [<bf1258fc>] (omapdss_device_init_output > > [omapdss_base]) from [<bf14aecc>] (dpi_init_port+0x188/0x288 > > [omapdss]) > > [ 12.059906] [<bf14aecc>] (dpi_init_port [omapdss]) from > > [<bf142240>] (dss_probe+0x29c/0x578 [omapdss]) > > [ 12.069396] [<bf142240>] (dss_probe [omapdss]) from [<c063dd0c>] > > (platform_drv_probe+0x48/0x98) > > [ 12.078186] [<c063dd0c>] (platform_drv_probe) from [<c063bce4>] > > (really_probe+0x1d8/0x344) > > [ 12.086517] [<c063bce4>] (really_probe) from [<c063bf60>] > > (driver_probe_device+0x5c/0x164) > > [ 12.094848] [<c063bf60>] (driver_probe_device) from [<c063a128>] > > (bus_for_each_drv+0x80/0xcc) > > [ 12.103454] [<c063a128>] (bus_for_each_drv) from [<c063ba90>] > > (__device_attach+0xd4/0x148) > > [ 12.111785] [<c063ba90>] (__device_attach) from [<c063adfc>] > > (bus_probe_device+0x84/0x8c) > > [ 12.120025] [<c063adfc>] (bus_probe_device) from [<c063b288>] > > (deferred_probe_work_func+0x60/0x8c) > > [ 12.129058] [<c063b288>] (deferred_probe_work_func) from > > [<c01553b4>] (process_one_work+0x1ec/0x530) > > [ 12.138275] [<c01553b4>] (process_one_work) from [<c0155728>] > > (worker_thread+0x30/0x558) > > [ 12.146423] [<c0155728>] (worker_thread) from [<c015c048>] > > (kthread+0x134/0x148) > > [ 12.153900] [<c015c048>] (kthread) from [<c0100168>] > > (ret_from_fork+0x14/0x2c) > > [ 12.161163] Exception stack(0xce1d7fb0 to 0xce1d7ff8) > > [ 12.166259] 7fa0: 00000000 > > 00000000 00000000 00000000 > > [ 12.174530] 7fc0: 00000000 00000000 00000000 00000000 00000000 > > 00000000 00000000 00000000 > > [ 12.182769] 7fe0: 00000000 00000000 00000000 00000000 00000013 00000000 > > [ 12.189544] ---[ end trace 9571aa0bd994d08c ]--- > > > > > > Thanks for any suggestions. I'll bisect when I have more time. > > > > adam -- Regards, Laurent Pinchart
