OpenCloudOS-Kernel/drivers/gpu/drm/meson
Marc Zyngier e78ad18ba3 drm/meson: Unbind all connectors on module removal
Removing the meson DRM module results in the following splats:

[   42.689228] WARNING: CPU: 0 PID: 572 at drivers/gpu/drm/drm_irq.c:192 drm_irq_uninstall+0x130/0x160 [drm]
[...]
[   42.812820] Hardware name:  , BIOS 2021.01-rc2-00012-gde865f7ee1 11/16/2020
[   42.819723] pstate: 80400089 (Nzcv daIf +PAN -UAO -TCO BTYPE=--)
[   42.825737] pc : drm_irq_uninstall+0x130/0x160 [drm]
[   42.830647] lr : drm_irq_uninstall+0xc4/0x160 [drm]
[...]
[   42.917614] Call trace:
[   42.920086]  drm_irq_uninstall+0x130/0x160 [drm]
[   42.924612]  meson_drv_unbind+0x68/0xa4 [meson_drm]
[   42.929436]  component_del+0xc0/0x180
[   42.933058]  meson_dw_hdmi_remove+0x28/0x40 [meson_dw_hdmi]
[   42.938576]  platform_drv_remove+0x38/0x60
[   42.942628]  __device_release_driver+0x190/0x23c
[   42.947198]  driver_detach+0xcc/0x160
[   42.950822]  bus_remove_driver+0x68/0xe0
[   42.954702]  driver_unregister+0x3c/0x6c
[   42.958583]  platform_driver_unregister+0x20/0x2c
[   42.963243]  meson_dw_hdmi_platform_driver_exit+0x18/0x4a8 [meson_dw_hdmi]
[   42.970057]  __arm64_sys_delete_module+0x1bc/0x294
[   42.974801]  el0_svc_common.constprop.0+0x80/0x240
[   42.979542]  do_el0_svc+0x30/0xa0
[   42.982821]  el0_svc+0x18/0x50
[   42.985839]  el0_sync_handler+0x198/0x404
[   42.989806]  el0_sync+0x158/0x180

immediatelly followed by

[   43.002296] WARNING: CPU: 0 PID: 572 at drivers/gpu/drm/drm_mode_config.c:504 drm_mode_config_cleanup+0x2a8/0x304 [drm]
[...]
[   43.128150] Hardware name:  , BIOS 2021.01-rc2-00012-gde865f7ee1 11/16/2020
[   43.135052] pstate: 80400009 (Nzcv daif +PAN -UAO -TCO BTYPE=--)
[   43.141062] pc : drm_mode_config_cleanup+0x2a8/0x304 [drm]
[   43.146492] lr : drm_mode_config_cleanup+0xac/0x304 [drm]
[...]
[   43.233979] Call trace:
[   43.236451]  drm_mode_config_cleanup+0x2a8/0x304 [drm]
[   43.241538]  drm_mode_config_init_release+0x1c/0x2c [drm]
[   43.246886]  drm_managed_release+0xa8/0x120 [drm]
[   43.251543]  drm_dev_put+0x94/0xc0 [drm]
[   43.255380]  meson_drv_unbind+0x78/0xa4 [meson_drm]
[   43.260204]  component_del+0xc0/0x180
[   43.263829]  meson_dw_hdmi_remove+0x28/0x40 [meson_dw_hdmi]
[   43.269344]  platform_drv_remove+0x38/0x60
[   43.273398]  __device_release_driver+0x190/0x23c
[   43.277967]  driver_detach+0xcc/0x160
[   43.281590]  bus_remove_driver+0x68/0xe0
[   43.285471]  driver_unregister+0x3c/0x6c
[   43.289352]  platform_driver_unregister+0x20/0x2c
[   43.294011]  meson_dw_hdmi_platform_driver_exit+0x18/0x4a8 [meson_dw_hdmi]
[   43.300826]  __arm64_sys_delete_module+0x1bc/0x294
[   43.305570]  el0_svc_common.constprop.0+0x80/0x240
[   43.310312]  do_el0_svc+0x30/0xa0
[   43.313590]  el0_svc+0x18/0x50
[   43.316608]  el0_sync_handler+0x198/0x404
[   43.320574]  el0_sync+0x158/0x180
[   43.323852] ---[ end trace d796a3072dab01da ]---
[   43.328561] [drm:drm_mode_config_cleanup [drm]] *ERROR* connector HDMI-A-1 leaked!

both triggered by the fact that the HDMI subsystem is still active,
and the DRM removal doesn't result in the connectors being torn down.

Call drm_atomic_helper_shutdown() and component_unbind_all() to safely
tear the module down.

Fixes: 2d8f92897a ("drm/meson: Uninstall IRQ handler")
Signed-off-by: Marc Zyngier <maz@kernel.org>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201116200744.495826-3-maz@kernel.org
2020-11-17 14:47:08 +01:00
..
Kconfig Merge remote-tracking branch 'drm/drm-next' into drm-misc-next 2019-05-28 09:39:08 +02:00
Makefile drm/meson: Add AFBCD module driver 2019-12-10 10:09:01 +01:00
meson_crtc.c drm/atomic: Pass the full state to CRTC atomic begin and flush 2020-11-02 12:37:49 +01:00
meson_crtc.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
meson_drv.c drm/meson: Unbind all connectors on module removal 2020-11-17 14:47:08 +01:00
meson_drv.h drm/meson: overlay: setup overlay for Amlogic FBC 2020-07-03 10:12:29 +02:00
meson_dw_hdmi.c Backmerge remote-tracking branch 'drm/drm-next' into drm-misc-next 2020-06-29 12:16:26 +02:00
meson_dw_hdmi.h drm: meson: global clean-up 2019-08-09 12:06:14 +02:00
meson_osd_afbcd.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
meson_osd_afbcd.h drm/meson: Add AFBCD module driver 2019-12-10 10:09:01 +01:00
meson_overlay.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
meson_overlay.h drm/meson: Support Overlay plane for video rendering 2018-11-13 13:27:51 +01:00
meson_plane.c drm/meson: Remove unneeded semicolon 2020-04-28 11:17:27 +02:00
meson_plane.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
meson_rdma.c drm: meson: fix address type confusion 2020-01-08 13:51:56 +01:00
meson_rdma.h drm/meson: add RDMA module driver 2019-12-10 10:08:45 +01:00
meson_registers.h Linux 5.8-rc6 2020-07-24 08:48:05 +10:00
meson_vclk.c drm/meson: add mode selection limits against specific SoC revisions 2020-05-05 10:19:33 +02:00
meson_vclk.h drm/meson: add mode selection limits against specific SoC revisions 2020-05-05 10:19:33 +02:00
meson_venc.c drm/meson: venc: add support for YUV420 setup 2020-03-10 10:51:24 +01:00
meson_venc.h drm/meson: venc: add support for YUV420 setup 2020-03-10 10:51:24 +01:00
meson_venc_cvbs.c drm: Nuke mode->vrefresh 2020-05-27 14:31:42 +03:00
meson_venc_cvbs.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
meson_viu.c drm/meson: viu: fix setting the OSD burst length in VIU_OSD1_FIFO_CTRL_STAT 2020-07-02 10:36:56 +02:00
meson_viu.h drm/meson: viu: add AFBC modules routing functions 2019-12-10 10:09:38 +01:00
meson_vpp.c drm: meson: use match data to detect vpu compatibility 2019-08-22 17:54:05 +02:00
meson_vpp.h drm/meson: drop use of drmP.h 2019-07-17 12:47:57 +02:00