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2021-10-10drm/bridge: lvds-codec: Add support for LVDS data mapping selectMarek Vasut1-1/+75
Decoder input LVDS format is a property of the decoder chip or even its strapping. Handle data-mapping the same way lvds-panel does. In case data-mapping is not present, do nothing, since there are still legacy bindings which do not specify this property. Signed-off-by: Marek Vasut <marex@denx.de> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> To: dri-devel@lists.freedesktop.org Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20211010144919.38392-2-marex@denx.de
2021-10-10dt-bindings: display: bridge: lvds-codec: Document LVDS data mapping selectMarek Vasut1-1/+32
Decoder input LVDS format is a property of the decoder chip or even its strapping. Add DT property data-mapping the same way lvds-panel does, to define the LVDS data mapping. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Marek Vasut <marex@denx.de> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: devicetree@vger.kernel.org To: dri-devel@lists.freedesktop.org Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20211010144919.38392-1-marex@denx.de
2021-10-10fbdev: fbmem: Fix double free of 'fb_info->pixmap.addr'Zheyu Ma1-1/+4
savagefb and some other drivers call kfree to free 'info->pixmap.addr' even after calling unregister_framebuffer, which may cause double free. Fix this by setting 'fb_info->pixmap.addr' to NULL after kfree in unregister_framebuffer. The following log reveals it: [ 37.318872] BUG: KASAN: double-free or invalid-free in kfree+0x13e/0x290 [ 37.319369] [ 37.320803] Call Trace: [ 37.320992] dump_stack_lvl+0xa8/0xd1 [ 37.321274] print_address_description+0x87/0x3b0 [ 37.321632] ? kfree+0x13e/0x290 [ 37.321879] ? kfree+0x13e/0x290 [ 37.322126] ? kfree+0x13e/0x290 [ 37.322374] kasan_report_invalid_free+0x58/0x90 [ 37.322724] ____kasan_slab_free+0x123/0x140 [ 37.323049] __kasan_slab_free+0x11/0x20 [ 37.323347] slab_free_freelist_hook+0x81/0x150 [ 37.323689] ? savagefb_remove+0xa1/0xc0 [savagefb] [ 37.324066] kfree+0x13e/0x290 [ 37.324304] savagefb_remove+0xa1/0xc0 [savagefb] [ 37.324655] pci_device_remove+0xa9/0x250 [ 37.324959] ? pci_device_probe+0x7d0/0x7d0 [ 37.325273] device_release_driver_internal+0x4f7/0x7a0 [ 37.325666] driver_detach+0x1e8/0x2c0 [ 37.325952] bus_remove_driver+0x134/0x290 [ 37.326262] ? sysfs_remove_groups+0x97/0xb0 [ 37.326584] driver_unregister+0x77/0xa0 [ 37.326883] pci_unregister_driver+0x2c/0x1c0 [ 37.336124] [ 37.336245] Allocated by task 5465: [ 37.336507] ____kasan_kmalloc+0xb5/0xe0 [ 37.336801] __kasan_kmalloc+0x9/0x10 [ 37.337069] kmem_cache_alloc_trace+0x12b/0x220 [ 37.337405] register_framebuffer+0x3f3/0xa00 [ 37.337731] foo_register_framebuffer+0x3b/0x50 [savagefb] [ 37.338136] [ 37.338255] Freed by task 5475: [ 37.338492] kasan_set_track+0x3d/0x70 [ 37.338774] kasan_set_free_info+0x23/0x40 [ 37.339081] ____kasan_slab_free+0x10b/0x140 [ 37.339399] __kasan_slab_free+0x11/0x20 [ 37.339694] slab_free_freelist_hook+0x81/0x150 [ 37.340034] kfree+0x13e/0x290 [ 37.340267] do_unregister_framebuffer+0x21c/0x3d0 [ 37.340624] unregister_framebuffer+0x23/0x40 [ 37.340950] savagefb_remove+0x45/0xc0 [savagefb] [ 37.341302] pci_device_remove+0xa9/0x250 [ 37.341603] device_release_driver_internal+0x4f7/0x7a0 [ 37.341990] driver_detach+0x1e8/0x2c0 [ 37.342272] bus_remove_driver+0x134/0x290 [ 37.342577] driver_unregister+0x77/0xa0 [ 37.342873] pci_unregister_driver+0x2c/0x1c0 [ 37.343196] cleanup_module+0x15/0x1c [savagefb] [ 37.343543] __se_sys_delete_module+0x398/0x490 [ 37.343881] __x64_sys_delete_module+0x56/0x60 [ 37.344221] do_syscall_64+0x4d/0xc0 [ 37.344492] entry_SYSCALL_64_after_hwframe+0x44/0xae Signed-off-by: Zheyu Ma <zheyuma97@gmail.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/1633848148-29747-1-git-send-email-zheyuma97@gmail.com
2021-10-09Revert "dt-bindings: add bindings for the Sharp LS060T1SX01 panel"Sam Ravnborg1-56/+0
This reverts commit 230a6f0e6f49 ("dt-bindings: add bindings for the Sharp LS060T1SX01 panel") It was pushed to drm-misc-next by accident. Added my own ack to expedit the revert. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210926001005.3442668-2-dmitry.baryshkov@linaro.org
2021-10-09Revert "drm/panel: Add support for Sharp LS060T1SX01 panel"Sam Ravnborg3-343/+0
This reverts commit 223cce88a926 ("drm/panel: Add support for Sharp LS060T1SX01 panel"). It was pushed to drm-misc-next by accident. Added my own ack to expedit the revert. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210926001005.3442668-3-dmitry.baryshkov@linaro.org
2021-10-09drm/panel: Add support for Sharp LS060T1SX01 panelDmitry Baryshkov3-0/+343
Add driver to support Sharp LS06T1SX01 FullHD panel. The panel uses nt35695 driver IC. For example this LCD module can be found in the kwaek.ca Dragonboard Display Adapter Bundle. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210926001005.3442668-3-dmitry.baryshkov@linaro.org