Re: [PATCH 1/2] drm/mediatek: set panel orientation before drm_dev_register().
Hi, Hsin-Yi: Hsin-Yi Wang 於 2021年4月20日 週二 下午5:05寫道: > > On Fri, Apr 9, 2021 at 12:53 PM Hsin-Yi Wang wrote: > > > > drm_dev_register() sets connector->registration_state to > > DRM_CONNECTOR_REGISTERED and dev->registered to true. If > > drm_connector_set_panel_orientation() is first called after > > drm_dev_register(), it will fail several checks and results in following > > warning. So set panel orientation in dsi before drm_dev_register() is > > called. All connector would have this problem, so I would like to fix this in common code. In drm_connector_init(), you could add "panel orientation" property with value DRM_MODE_PANEL_ORIENTATION_UNKNOWN, so it would not add new object when get modes. Regards, Chun-Kuang. > > > > [4.480976] [ cut here ] > > [4.485603] WARNING: CPU: 5 PID: 369 at > > drivers/gpu/drm/drm_mode_object.c:45 __drm_mode_object_add+0xb4/0xbc > > > > [4.609772] Call trace: > > [4.612208] __drm_mode_object_add+0xb4/0xbc > > [4.616466] drm_mode_object_add+0x20/0x2c > > [4.620552] drm_property_create+0xdc/0x174 > > [4.624723] drm_property_create_enum+0x34/0x98 > > [4.629241] drm_connector_set_panel_orientation+0x64/0xa0 > > [4.634716] boe_panel_get_modes+0x88/0xd8 > > [4.638802] drm_panel_get_modes+0x2c/0x48 > > [4.642887] panel_bridge_get_modes+0x1c/0x28 > > [4.647233] drm_bridge_connector_get_modes+0xa0/0xd4 > > [4.652273] drm_helper_probe_single_connector_modes+0x218/0x700 > > [4.658266] drm_mode_getconnector+0x1b4/0x45c > > [4.662699] drm_ioctl_kernel+0xac/0x128 > > [4.11] drm_ioctl+0x268/0x410 > > [4.670002] drm_compat_ioctl+0xdc/0xf0 > > [4.673829] __arm64_compat_sys_ioctl+0xc8/0x100 > > [4.678436] el0_svc_common+0xf4/0x1c0 > > [4.682174] do_el0_svc_compat+0x28/0x3c > > [4.686088] el0_svc_compat+0x10/0x1c > > [4.689738] el0_sync_compat_handler+0xa8/0xcc > > [4.694171] el0_sync_compat+0x178/0x180 > > [4.698082] ---[ end trace b4f2db9d9c88610b ]--- > > [4.702721] [ cut here ] > > [4.707329] WARNING: CPU: 5 PID: 369 at > > drivers/gpu/drm/drm_mode_object.c:243 drm_object_attach_property+0x48/0xb8 > > > > [4.833830] Call trace: > > [4.836266] drm_object_attach_property+0x48/0xb8 > > [4.840958] drm_connector_set_panel_orientation+0x84/0xa0 > > [4.846432] boe_panel_get_modes+0x88/0xd8 > > [4.850516] drm_panel_get_modes+0x2c/0x48 > > [4.854600] panel_bridge_get_modes+0x1c/0x28 > > [4.858946] drm_bridge_connector_get_modes+0xa0/0xd4 > > [4.863984] drm_helper_probe_single_connector_modes+0x218/0x700 > > [4.869978] drm_mode_getconnector+0x1b4/0x45c > > [4.874410] drm_ioctl_kernel+0xac/0x128 > > [4.878320] drm_ioctl+0x268/0x410 > > [4.881711] drm_compat_ioctl+0xdc/0xf0 > > [4.885536] __arm64_compat_sys_ioctl+0xc8/0x100 > > [4.890142] el0_svc_common+0xf4/0x1c0 > > [4.893879] do_el0_svc_compat+0x28/0x3c > > [4.897791] el0_svc_compat+0x10/0x1c > > [4.901441] el0_sync_compat_handler+0xa8/0xcc > > [4.905873] el0_sync_compat+0x178/0x180 > > [4.909783] ---[ end trace b4f2db9d9c88610c ]--- > > > > Signed-off-by: Hsin-Yi Wang > > ping on the thread, thanks. > > > --- > > drivers/gpu/drm/mediatek/mtk_dsi.c | 9 + > > 1 file changed, 9 insertions(+) > > > > diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c > > b/drivers/gpu/drm/mediatek/mtk_dsi.c > > index ae403c67cbd9..45a702ee09f3 100644 > > --- a/drivers/gpu/drm/mediatek/mtk_dsi.c > > +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c > > @@ -205,6 +205,7 @@ struct mtk_dsi { > > u32 irq_data; > > wait_queue_head_t irq_wait_queue; > > const struct mtk_dsi_driver_data *driver_data; > > + enum drm_panel_orientation orientation; > > }; > > > > static inline struct mtk_dsi *bridge_to_dsi(struct drm_bridge *b) > > @@ -966,6 +967,8 @@ static int mtk_dsi_encoder_init(struct drm_device *drm, > > struct mtk_dsi *dsi) > > } > > drm_connector_attach_encoder(dsi->connector, >encoder); > > > > + drm_connector_set_panel_orientation(dsi->connector, > > dsi->orientation); > > + > > return 0; > > > > err_cleanup_encoder: > > @@ -1029,6 +1032,12 @@ static int mtk_dsi_probe(struct platform_device > > *pdev) > > ret = PTR_ERR(dsi->next_bridge); > > goto err_unregister_host; > > } > > + > > + ret = of_drm_get_panel_orientation(panel->dev->of_node, > > >orientation); > > + if (ret) { > > + dev_err(dev, "failed to get panel orientation > > %d\n", ret); > > + return ret; > > + } > > } > > > > dsi->driver_data = of_device_get_match_data(dev); > > -- > > 2.31.1.295.g9ea45b61b8-goog > >
Re: [PATCH 1/2] drm/mediatek: set panel orientation before drm_dev_register().
On Fri, Apr 9, 2021 at 12:53 PM Hsin-Yi Wang wrote: > > drm_dev_register() sets connector->registration_state to > DRM_CONNECTOR_REGISTERED and dev->registered to true. If > drm_connector_set_panel_orientation() is first called after > drm_dev_register(), it will fail several checks and results in following > warning. So set panel orientation in dsi before drm_dev_register() is > called. > > [4.480976] [ cut here ] > [4.485603] WARNING: CPU: 5 PID: 369 at > drivers/gpu/drm/drm_mode_object.c:45 __drm_mode_object_add+0xb4/0xbc > > [4.609772] Call trace: > [4.612208] __drm_mode_object_add+0xb4/0xbc > [4.616466] drm_mode_object_add+0x20/0x2c > [4.620552] drm_property_create+0xdc/0x174 > [4.624723] drm_property_create_enum+0x34/0x98 > [4.629241] drm_connector_set_panel_orientation+0x64/0xa0 > [4.634716] boe_panel_get_modes+0x88/0xd8 > [4.638802] drm_panel_get_modes+0x2c/0x48 > [4.642887] panel_bridge_get_modes+0x1c/0x28 > [4.647233] drm_bridge_connector_get_modes+0xa0/0xd4 > [4.652273] drm_helper_probe_single_connector_modes+0x218/0x700 > [4.658266] drm_mode_getconnector+0x1b4/0x45c > [4.662699] drm_ioctl_kernel+0xac/0x128 > [4.11] drm_ioctl+0x268/0x410 > [4.670002] drm_compat_ioctl+0xdc/0xf0 > [4.673829] __arm64_compat_sys_ioctl+0xc8/0x100 > [4.678436] el0_svc_common+0xf4/0x1c0 > [4.682174] do_el0_svc_compat+0x28/0x3c > [4.686088] el0_svc_compat+0x10/0x1c > [4.689738] el0_sync_compat_handler+0xa8/0xcc > [4.694171] el0_sync_compat+0x178/0x180 > [4.698082] ---[ end trace b4f2db9d9c88610b ]--- > [4.702721] [ cut here ] > [4.707329] WARNING: CPU: 5 PID: 369 at > drivers/gpu/drm/drm_mode_object.c:243 drm_object_attach_property+0x48/0xb8 > > [4.833830] Call trace: > [4.836266] drm_object_attach_property+0x48/0xb8 > [4.840958] drm_connector_set_panel_orientation+0x84/0xa0 > [4.846432] boe_panel_get_modes+0x88/0xd8 > [4.850516] drm_panel_get_modes+0x2c/0x48 > [4.854600] panel_bridge_get_modes+0x1c/0x28 > [4.858946] drm_bridge_connector_get_modes+0xa0/0xd4 > [4.863984] drm_helper_probe_single_connector_modes+0x218/0x700 > [4.869978] drm_mode_getconnector+0x1b4/0x45c > [4.874410] drm_ioctl_kernel+0xac/0x128 > [4.878320] drm_ioctl+0x268/0x410 > [4.881711] drm_compat_ioctl+0xdc/0xf0 > [4.885536] __arm64_compat_sys_ioctl+0xc8/0x100 > [4.890142] el0_svc_common+0xf4/0x1c0 > [4.893879] do_el0_svc_compat+0x28/0x3c > [4.897791] el0_svc_compat+0x10/0x1c > [4.901441] el0_sync_compat_handler+0xa8/0xcc > [4.905873] el0_sync_compat+0x178/0x180 > [4.909783] ---[ end trace b4f2db9d9c88610c ]--- > > Signed-off-by: Hsin-Yi Wang ping on the thread, thanks. > --- > drivers/gpu/drm/mediatek/mtk_dsi.c | 9 + > 1 file changed, 9 insertions(+) > > diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c > b/drivers/gpu/drm/mediatek/mtk_dsi.c > index ae403c67cbd9..45a702ee09f3 100644 > --- a/drivers/gpu/drm/mediatek/mtk_dsi.c > +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c > @@ -205,6 +205,7 @@ struct mtk_dsi { > u32 irq_data; > wait_queue_head_t irq_wait_queue; > const struct mtk_dsi_driver_data *driver_data; > + enum drm_panel_orientation orientation; > }; > > static inline struct mtk_dsi *bridge_to_dsi(struct drm_bridge *b) > @@ -966,6 +967,8 @@ static int mtk_dsi_encoder_init(struct drm_device *drm, > struct mtk_dsi *dsi) > } > drm_connector_attach_encoder(dsi->connector, >encoder); > > + drm_connector_set_panel_orientation(dsi->connector, dsi->orientation); > + > return 0; > > err_cleanup_encoder: > @@ -1029,6 +1032,12 @@ static int mtk_dsi_probe(struct platform_device *pdev) > ret = PTR_ERR(dsi->next_bridge); > goto err_unregister_host; > } > + > + ret = of_drm_get_panel_orientation(panel->dev->of_node, > >orientation); > + if (ret) { > + dev_err(dev, "failed to get panel orientation %d\n", > ret); > + return ret; > + } > } > > dsi->driver_data = of_device_get_match_data(dev); > -- > 2.31.1.295.g9ea45b61b8-goog >
[PATCH 1/2] drm/mediatek: set panel orientation before drm_dev_register().
drm_dev_register() sets connector->registration_state to DRM_CONNECTOR_REGISTERED and dev->registered to true. If drm_connector_set_panel_orientation() is first called after drm_dev_register(), it will fail several checks and results in following warning. So set panel orientation in dsi before drm_dev_register() is called. [4.480976] [ cut here ] [4.485603] WARNING: CPU: 5 PID: 369 at drivers/gpu/drm/drm_mode_object.c:45 __drm_mode_object_add+0xb4/0xbc [4.609772] Call trace: [4.612208] __drm_mode_object_add+0xb4/0xbc [4.616466] drm_mode_object_add+0x20/0x2c [4.620552] drm_property_create+0xdc/0x174 [4.624723] drm_property_create_enum+0x34/0x98 [4.629241] drm_connector_set_panel_orientation+0x64/0xa0 [4.634716] boe_panel_get_modes+0x88/0xd8 [4.638802] drm_panel_get_modes+0x2c/0x48 [4.642887] panel_bridge_get_modes+0x1c/0x28 [4.647233] drm_bridge_connector_get_modes+0xa0/0xd4 [4.652273] drm_helper_probe_single_connector_modes+0x218/0x700 [4.658266] drm_mode_getconnector+0x1b4/0x45c [4.662699] drm_ioctl_kernel+0xac/0x128 [4.11] drm_ioctl+0x268/0x410 [4.670002] drm_compat_ioctl+0xdc/0xf0 [4.673829] __arm64_compat_sys_ioctl+0xc8/0x100 [4.678436] el0_svc_common+0xf4/0x1c0 [4.682174] do_el0_svc_compat+0x28/0x3c [4.686088] el0_svc_compat+0x10/0x1c [4.689738] el0_sync_compat_handler+0xa8/0xcc [4.694171] el0_sync_compat+0x178/0x180 [4.698082] ---[ end trace b4f2db9d9c88610b ]--- [4.702721] [ cut here ] [4.707329] WARNING: CPU: 5 PID: 369 at drivers/gpu/drm/drm_mode_object.c:243 drm_object_attach_property+0x48/0xb8 [4.833830] Call trace: [4.836266] drm_object_attach_property+0x48/0xb8 [4.840958] drm_connector_set_panel_orientation+0x84/0xa0 [4.846432] boe_panel_get_modes+0x88/0xd8 [4.850516] drm_panel_get_modes+0x2c/0x48 [4.854600] panel_bridge_get_modes+0x1c/0x28 [4.858946] drm_bridge_connector_get_modes+0xa0/0xd4 [4.863984] drm_helper_probe_single_connector_modes+0x218/0x700 [4.869978] drm_mode_getconnector+0x1b4/0x45c [4.874410] drm_ioctl_kernel+0xac/0x128 [4.878320] drm_ioctl+0x268/0x410 [4.881711] drm_compat_ioctl+0xdc/0xf0 [4.885536] __arm64_compat_sys_ioctl+0xc8/0x100 [4.890142] el0_svc_common+0xf4/0x1c0 [4.893879] do_el0_svc_compat+0x28/0x3c [4.897791] el0_svc_compat+0x10/0x1c [4.901441] el0_sync_compat_handler+0xa8/0xcc [4.905873] el0_sync_compat+0x178/0x180 [4.909783] ---[ end trace b4f2db9d9c88610c ]--- Signed-off-by: Hsin-Yi Wang --- drivers/gpu/drm/mediatek/mtk_dsi.c | 9 + 1 file changed, 9 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c index ae403c67cbd9..45a702ee09f3 100644 --- a/drivers/gpu/drm/mediatek/mtk_dsi.c +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c @@ -205,6 +205,7 @@ struct mtk_dsi { u32 irq_data; wait_queue_head_t irq_wait_queue; const struct mtk_dsi_driver_data *driver_data; + enum drm_panel_orientation orientation; }; static inline struct mtk_dsi *bridge_to_dsi(struct drm_bridge *b) @@ -966,6 +967,8 @@ static int mtk_dsi_encoder_init(struct drm_device *drm, struct mtk_dsi *dsi) } drm_connector_attach_encoder(dsi->connector, >encoder); + drm_connector_set_panel_orientation(dsi->connector, dsi->orientation); + return 0; err_cleanup_encoder: @@ -1029,6 +1032,12 @@ static int mtk_dsi_probe(struct platform_device *pdev) ret = PTR_ERR(dsi->next_bridge); goto err_unregister_host; } + + ret = of_drm_get_panel_orientation(panel->dev->of_node, >orientation); + if (ret) { + dev_err(dev, "failed to get panel orientation %d\n", ret); + return ret; + } } dsi->driver_data = of_device_get_match_data(dev); -- 2.31.1.295.g9ea45b61b8-goog