[PATCH] video: lcdif: skip framebuffer registration when no display modes available

Sascha Hauer s.hauer at pengutronix.de
Mon Jul 6 23:59:01 PDT 2026


On Tue, 23 Jun 2026 19:20:17 +0000, Johannes Schneider wrote:
> When the downstream VPL chain reports no modes (e.g. the panel-lvds
> node was runtime-disabled by board code on a unit shipped without a
> panel), the driver previously fell back to a 640x480 default,
> allocated a framebuffer, registered /dev/fb0, exported a (bogus)
> simplefb DT fixup to the kernel, and tried to fb_enable() the
> controller.  fb_enable() then bailed because info->mode was NULL,
> but only after we'd already exported a non-functional simplefb to
> Linux's DRM_SIMPLEDRM and wasted ~1.2 MB on a buffer nothing
> scans out.
> 
> [...]

Applied, thanks!

[1/1] video: lcdif: skip framebuffer registration when no display modes available
      https://git.pengutronix.de/cgit/barebox/commit/?id=54878fe93a12 (link may not be stable)

Best regards,
-- 
Sascha Hauer <s.hauer at pengutronix.de>




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