kernel/git/next/linux-next.git/drivers/gpu/drm/sysfb, branch master

Merge branch 'for-linux-next-fixes' of https://gitlab.freedesktop.org/drm/misc/kernel.git

2026-08-28T12:34:53+00:00

# Conflicts: # drivers/accel/ethosu/ethosu_drv.c # drivers/gpu/drm/nouveau/nvkm/engine/disp/head.h # drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/disp.c

drm/sysfb: ofdrm: Fix is_avivo() constant comparison bug

2026-08-26T06:50:53+00:00

The is_avivo() function has a logic error where it compares a constant to another constant instead of checking the device parameter: (PCI_VENDOR_ID_ATI_R600 >= 0x9400) Signed-off-by: Shixiong Ou Reviewed-by: Thomas Zimmermann Fixes: f496834e1674 ("drm/ofdrm: Add per-model device function") Signed-off-by: Thomas Zimmermann Cc: # v6.2+ Link: https://patch.msgid.link/20260731111729.703116-1-oushixiong1025@163.com

drm/sysfb: ofdrm: Fix integer overflow in fb_size calculation

2026-08-26T06:50:09+00:00

The framebuffer size calculation `fb_size = linebytes * height` can overflow when both values are large (e.g., 46341 * 46341 > INT_MAX). Since linebytes and height are both int types, the multiplication is performed as int * int, which results in undefined behavior on overflow. Use check_mul_overflow() to detect and prevent this overflow, consistent with the approach used in simpledrm.c and corebootdrm.c. Signed-off-by: Shixiong Ou Reviewed-by: Thomas Zimmermann Signed-off-by: Thomas Zimmermann Fixes: c8a17756c425 ("drm/ofdrm: Add ofdrm for Open Firmware framebuffers") Cc: # v6.2+ Link: https://patch.msgid.link/20260825104134.669676-1-oushixiong1025@163.com

drm/sysfb: simpledrm: Read panel orientation from DT node

2026-07-08T11:44:40+00:00

A device-tree panel node can specify the panel's rotation in steps of 90 degrees. Set the DRM connector orientation accordingly. Use UNKNOWN for the orientation if the field is missing or invalid. v3: - read the orientation with drm_of_get_panel_orientation() (Thierry) Signed-off-by: Thomas Zimmermann Reviewed-by: Thierry Reding Reviewed-by: Maxime Ripard Reviewed-by: Javier Martinez Canillas Link: https://patch.msgid.link/20260701121055.192475-3-tzimmermann@suse.de

drm/sysfb: simpledrm: Validate mmap size against framebuffer size

2026-06-30T09:14:21+00:00

The size of the mmap'ed framebuffer could be smaller than the minimum required framebuffer size. Validate the resource size against the framebuffer size. Buggy firmware that triggers this check should be fixed up with a quirk on a case-by-case base. v3: - fix size checks (Sashiko) - improve error message for alignment check (Thierry) - do not store aligned size value Signed-off-by: Thomas Zimmermann Suggested-by: Sashiko Reviewed-by: Thierry Reding Reviewed-by: Maxime Ripard Reviewed-by: Javier Martinez Canillas Link: https://patch.msgid.link/20260625094509.157581-6-tzimmermann@suse.de

drm/sysfb: simpledrm: Improve stride validation

2026-06-30T09:14:17+00:00

Validate the computed stride against the maximum value INT_MAX. Signed-off-by: Thomas Zimmermann Reviewed-by: Thierry Reding Reviewed-by: Maxime Ripard Reviewed-by: Javier Martinez Canillas Fixes: 7bfa5c7b28d6 ("drm/simpledrm: Compute linestride with drm_format_info_min_pitch()") Cc: # v6.1+ Link: https://patch.msgid.link/20260625094509.157581-5-tzimmermann@suse.de

drm/sysfb: simpledrm: Inline simplefb_get_validated_int()

2026-06-30T09:14:14+00:00

The helper simplefb_get_validated_int() is only a wrapper around drm_sysfb_get_validated_int(). Inline the function into its callers. Signed-off-by: Thomas Zimmermann Reviewed-by: Thierry Reding Reviewed-by: Maxime Ripard Reviewed-by: Javier Martinez Canillas Link: https://patch.msgid.link/20260625094509.157581-4-tzimmermann@suse.de

drm/sysfb: simpledrm: Improve panel-size validation

2026-06-30T09:14:10+00:00

Validate the panel size from the device-tree node against the limitations of struct drm_display_mode. The type only stores sizes in 16-bit fields. Fail transparently on errors; do not warn. v3: - move comments to a more prominent place (Thierry) v2: - only use initialized values in debugging output (Sashiko) Signed-off-by: Thomas Zimmermann Reviewed-by: Thierry Reding Reviewed-by: Maxime Ripard Reviewed-by: Javier Martinez Canillas Fixes: 2a6d731a8f16 ("drm/simpledrm: Allow physical width and height configuration via panel node") Cc: Rayyan Ansari Cc: # v6.4+ Link: https://patch.msgid.link/20260625094509.157581-3-tzimmermann@suse.de

drm/sysfb: simpledrm: Improve framebuffer-size validation

2026-06-30T09:13:41+00:00

Validate the framebuffer size from the firmware against the limitations of struct drm_display_mode. The type only stores sizes in 16-bit fields. Fail probing on errors. v2: - remove unused function simplefb_get_validated_int0() (Sashiko) Signed-off-by: Thomas Zimmermann Reviewed-by: Thierry Reding Reviewed-by: Maxime Ripard Reviewed-by: Javier Martinez Canillas Fixes: 11e8f5fd223b ("drm: Add simpledrm driver") Cc: # v5.14+ Fixes: 11e8f5fd223b ("drm: Add simpledrm driver") Link: https://patch.msgid.link/20260625094509.157581-2-tzimmermann@suse.de

firmware: sysfb: Mark CONFIG_SYSFB_SIMPLEFB as deprecated

2026-06-30T09:10:40+00:00

Mark CONFIG_SYSFB_SIMPLEFB as deprecated. Enabling it allows to run simpledrm and simplefb on EFI/VESA framebuffers. Doing this is discouraged in favor of using efidrm and vesadrm. v2: - resolve conflicting help texts (Sashiko) Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Link: https://patch.msgid.link/20260625065724.15794-1-tzimmermann@suse.de