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Map the second frame at stride * yres and pan with the logical frame height instead of deriving offsets from mapped addresses. Initialize the state, propagate plane query failures and release the second mapping using its actual length. Signed-off-by: jianglianfang <jianglianfang@xiaomi.com> Signed-off-by: rongyichang <rongyichang@xiaomi.com>
Backport the NuttX fbdev offset adaptation to the LVGL 9.2.2 archive. Apply the single-file patch through both Make and CMake, including already extracted sources, without modifying independent Git checkouts. Release mapped buffers on failure, rebinding and display deletion. The patch requires the matching virtual-offset framebuffer driver. Signed-off-by: jianglianfang <jianglianfang@xiaomi.com> Signed-off-by: rongyichang <rongyichang@xiaomi.com>
cederom
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Oct 29, 2026
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Thank you @terry0012 please fix ci reported formatting issues :-)
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Summary
Use logical framebuffer offsets in the fb example: map the second buffer at stride * yres and pan using yres instead of physical address differences.
Backport the same behavior to LVGL 9.2.2. Apply the patch during source preparation using Make/CMake, following existing modules, with a success stamp to avoid repeated patching.
related to PR apache/nuttx#21120
Impact
Requires the matching NuttX logical framebuffer offset support: .
The LVGL patch is automatically applied only to the 9.2.2 archive. Independent Git checkouts are left unchanged and require equivalent fbdev support.
Testing