Re: [PATCH v4 0/2] platform/x86: dell-uart-backlight: handle stray EC byte in responses

[Ilpo Järvinen]

On Sat, 17 Oct 2026 13:07:02 +0530, chitranshmandhaniya@xxxxxxxxx wrote:

> On some Dell All-in-One machines the EC sporadically inserts a spurious
> byte after the command echo in UART backlight response frames.  This
> causes a checksum mismatch and the driver returns -EIO to userspace.
> 
> Patch 1 is a preparatory refactor: extract the byte-level response
> parsing into a dedicated dell_uart_bl_receive_data() helper with no
> functional change.
> 
> [...]

Thank you for your contribution, it has been applied to my local
review-ilpo-next branch. Note it will show up in the public
platform-drivers-x86/review-ilpo-next branch only once I've pushed my
local branch there, which might take a while.

FYI [if applicable to your patch], as per Linus' policy change, also
fixes are mostly routed through for-next unless the fix is for a
commit introduced in the most recent cycle or is clearly a regression
fix.

The list of commits applied:
[1/2] platform/x86: dell-uart-backlight: extract dell_uart_bl_receive_data() helper
      commit: c7d2d8e9b177c3542a566a043c055c520ebad8ca
[2/2] platform/x86: dell-uart-backlight: recover from stray EC response byte
      commit: a71b1ac1169ff29414d1a0a1d0341e3d0a9fce63

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 i.