linux-kernel - Re: [PATCH net-next v5 09/12] net: pse-pd: pd692x0: Add support for controller and manager power supplies

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Message-ID: <20250224134222.358b28d8@fedora>
Date: Mon, 24 Feb 2025 13:42:22 +0100
From: Maxime Chevallier <maxime.chevallier@...tlin.com>
To: Kory Maincent <kory.maincent@...tlin.com>
Cc: Andrew Lunn <andrew@...n.ch>, Oleksij Rempel <o.rempel@...gutronix.de>,
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet
 <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni
 <pabeni@...hat.com>, Jonathan Corbet <corbet@....net>, Donald Hunter
 <donald.hunter@...il.com>, Rob Herring <robh@...nel.org>, Andrew Lunn
 <andrew+netdev@...n.ch>, Simon Horman <horms@...nel.org>, Heiner Kallweit
 <hkallweit1@...il.com>, Russell King <linux@...linux.org.uk>, Krzysztof
 Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, Thomas
 Petazzoni <thomas.petazzoni@...tlin.com>, netdev@...r.kernel.org,
 linux-doc@...r.kernel.org, Kyle Swenson <kyle.swenson@....tech>, Dent
 Project <dentproject@...uxfoundation.org>, kernel@...gutronix.de,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next v5 09/12] net: pse-pd: pd692x0: Add support for
 controller and manager power supplies

Hi Köry,

On Tue, 18 Feb 2025 17:19:13 +0100
Kory Maincent <kory.maincent@...tlin.com> wrote:

> From: Kory Maincent (Dent Project) <kory.maincent@...tlin.com>
> 
> Add support for managing the VDD and VDDA power supplies for the PD692x0
> PSE controller, as well as the VAUX5 and VAUX3P3 power supplies for the
> PD6920x PSE managers.
> 
> Signed-off-by: Kory Maincent (Dent Project) <kory.maincent@...tlin.com>
> ---
> 
> Changes in v5:
> - New patch
> ---
>  drivers/net/pse-pd/pd692x0.c | 20 ++++++++++++++++++++
>  1 file changed, 20 insertions(+)
> 
> diff --git a/drivers/net/pse-pd/pd692x0.c b/drivers/net/pse-pd/pd692x0.c
> index 44ded2aa6fca..c9fa60b314ce 100644
> --- a/drivers/net/pse-pd/pd692x0.c
> +++ b/drivers/net/pse-pd/pd692x0.c
> @@ -976,8 +976,10 @@ pd692x0_register_managers_regulator(struct pd692x0_priv *priv,
>  	reg_name_len = strlen(dev_name(dev)) + 23;
>  
>  	for (i = 0; i < nmanagers; i++) {
> +		static const char * const regulators[] = { "vaux5", "vaux3p3" };

Looks like the 'static' is not needed here :)

>  		struct regulator_dev *rdev;
>  		char *reg_name;
> +		int ret;
>  
>  		reg_name = devm_kzalloc(dev, reg_name_len, GFP_KERNEL);
>  		if (!reg_name)
> @@ -988,6 +990,17 @@ pd692x0_register_managers_regulator(struct pd692x0_priv *priv,
>  		if (IS_ERR(rdev))
>  			return PTR_ERR(rdev);
>  
> +		/* VMAIN is described as main supply for the manager.
> +		 * Add other VAUX power supplies and link them to the
> +		 * virtual device rdev->dev.
> +		 */
> +		ret = devm_regulator_bulk_get_enable(&rdev->dev,
> +						     ARRAY_SIZE(regulators),
> +						     regulators);
> +		if (ret)
> +			return dev_err_probe(&rdev->dev, ret,
> +					     "Failed to enable regulators\n");
> +
>  		priv->manager_reg[i] = rdev;
>  	}
>  
> @@ -1640,6 +1653,7 @@ static const struct fw_upload_ops pd692x0_fw_ops = {
>  
>  static int pd692x0_i2c_probe(struct i2c_client *client)
>  {
> +	static const char * const regulators[] = { "vdd", "vdda" };

And here as well

Thanks,

Maxime