linux-kernel - Re: [PATCH v5 02/10] regulator: Move OF-specific regulator lookup code to of

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Message-ID: <ZsdBddTDuvNasHNq@smile.fi.intel.com>
Date: Thu, 22 Aug 2024 16:47:33 +0300
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Chen-Yu Tsai <wenst@...omium.org>
Cc: Rob Herring <robh@...nel.org>, Saravana Kannan <saravanak@...gle.com>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	Wolfram Sang <wsa@...nel.org>, Benson Leung <bleung@...omium.org>,
	Tzung-Bi Shih <tzungbi@...nel.org>, Mark Brown <broonie@...nel.org>,
	Liam Girdwood <lgirdwood@...il.com>,
	chrome-platform@...ts.linux.dev, devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Douglas Anderson <dianders@...omium.org>,
	Johan Hovold <johan@...nel.org>, Jiri Kosina <jikos@...nel.org>,
	linux-i2c@...r.kernel.org
Subject: Re: [PATCH v5 02/10] regulator: Move OF-specific regulator lookup
 code to of_regulator.c

On Thu, Aug 22, 2024 at 05:19:55PM +0800, Chen-Yu Tsai wrote:
> There's still a bit of OF-specific code in the regulator device lookup
> function.
> 
> Move those bits of code over to of_regulator.c, and create a new
> function of_regulator_dev_lookup() to encapsulate the code moved out of
> regulator_dev_lookup().
> 
> Also mark of_find_regulator_by_node() as static, since there are no
> other users in other compile units.
> 
> There are no functional changes.

...

> +/**
> + * of_get_child_regulator - get a child regulator device node
> + * based on supply name
> + * @parent: Parent device node
> + * @prop_name: Combination regulator supply name and "-supply"
> + *
> + * Traverse all child nodes.
> + * Extract the child regulator device node corresponding to the supply name.
> + * returns the device node corresponding to the regulator if found, else
> + * returns NULL.

At the same time you may fix kernel-doc warnings (no "Return" section) in these
three (on your wish you may fix others in a separate change, but it's not
related to this series).

> + */

...

> +/** of_regulator_dev_lookup - lookup a regulator device with device tree only

Something went wrong with the indentation.

> + * @dev: Device pointer for regulator supply lookup.
> + * @supply: Supply name or regulator ID.
> + *
> + * If successful, returns a struct regulator_dev that corresponds to the name
> + * @supply and with the embedded struct device refcount incremented by one.
> + * The refcount must be dropped by calling put_device().
> + * On failure one of the following ERR-PTR-encoded values is returned:
> + * -ENODEV if lookup fails permanently, -EPROBE_DEFER if lookup could succeed
> + * in the future.
> + */

-- 
With Best Regards,
Andy Shevchenko