[PATCH v11 1/5] docs: driver-api: gpio: rpmsg gpio driver over rpmsg bus

[Randy Dunlap]

On 3/12/26 12:29 PM, Shenwei Wang wrote:
> diff --git a/Documentation/driver-api/gpio/gpio-rpmsg.rst b/Documentation/driver-api/gpio/gpio-rpmsg.rst
> new file mode 100644
> index 000000000000..b2daa387143d
> --- /dev/null
> +++ b/Documentation/driver-api/gpio/gpio-rpmsg.rst
> @@ -0,0 +1,266 @@
> +.. SPDX-License-Identifier: GPL-2.0-or-later
> +
> +GPIO RPMSG (Remote Processor Messaging) Protocol
> +===================

'make htmldocs' build warning:

Documentation/driver-api/gpio/gpio-rpmsg.rst:4: WARNING: Title underline too short.

GPIO RPMSG (Remote Processor Messaging) Protocol
=================== [docutils]

The "underline" must be at least as long as the heading text line.

> +
> +The GPIO RPMSG transport protocol is used for communication and interaction
> +with GPIO controllers located on remote cores on the RPMSG bus.

-- 
~Randy