linux-kernel - Re: [PATCH net-next 9/9] net: pse-pd: Add PD692x0 PSE controller driver

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Date:   Thu, 16 Nov 2023 15:59:46 +0100
From:   Köry Maincent <kory.maincent@...tlin.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     "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>,
        Luis Chamberlain <mcgrof@...nel.org>,
        Russ Weight <russ.weight@...ux.dev>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-doc@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH net-next 9/9] net: pse-pd: Add PD692x0 PSE controller
 driver

Thanks Krzysztof for your reviews!

On Thu, 16 Nov 2023 15:29:24 +0100
Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org> wrote:

> On 16/11/2023 15:01, Kory Maincent wrote:
> > Add a new driver for the PD692x0 I2C Power Sourcing Equipment controller.
> > This driver only support i2c communication for now.
> > 
> > Signed-off-by: Kory Maincent <kory.maincent@...tlin.com>
> > ---
> >  MAINTAINERS                  |    1 +
> >  drivers/net/pse-pd/Kconfig   |   11 +
> >  drivers/net/pse-pd/Makefile  |    1 +
> >  drivers/net/pse-pd/pd692x0.c | 1049
> > ++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 1062
> > insertions(+)  
> 
> ....
> 
> > +
> > +err_fw_unregister:
> > +	firmware_upload_unregister(priv->fwl);
> > +	return ret;
> > +}
> > +
> > +static void pd692x0_i2c_remove(struct i2c_client *client)
> > +{
> > +	struct pd692x0_priv *priv = i2c_get_clientdata(client);
> > +
> > +	firmware_upload_unregister(priv->fwl);
> > +}
> > +
> > +static const struct i2c_device_id pd692x0_id[] = {
> > +	{ PD692X0_PSE_NAME, 0 },
> > +	{ },
> > +};
> > +MODULE_DEVICE_TABLE(i2c, pd692x0_id);
> > +
> > +static const struct of_device_id pd692x0_of_match[] = {
> > +	{ .compatible = "microchip,pd69200", },
> > +	{ .compatible = "microchip,pd69210", },
> > +	{ .compatible = "microchip,pd69220", },  
> 
> So they are the same from driver point of view.

Yes.
I only have the pd69200 version but the three versions are theoretically
compatible and microchip advise obviously to use the last one.
I describe the three names in case of future specific things even if I hope
there won't be and to have a clear version of which version is supported. Do you
prefer to use pd692x0 compatible instead?

Regards,

-- 
Köry Maincent, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com