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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Lee Jones <lee@kernel.org>
Cc: Vincent Whitchurch <vincent.whitchurch@axis.com>,
	devicetree@vger.kernel.org, linux-pci@vger.kernel.org,
	linux-kernel@vger.kernel.org, kernel@axis.com
Subject: Re: [PATCH] mfd: Add Simple PCI MFD driver
Date: Mon, 23 Jan 2023 17:31:21 +0100	[thread overview]
Message-ID: <Y862WTT03/JxXUG8@kroah.com> (raw)
In-Reply-To: <Y86op9oh5ldrZQyG@google.com>

On Mon, Jan 23, 2023 at 03:32:55PM +0000, Lee Jones wrote:
> On Mon, 23 Jan 2023, Vincent Whitchurch wrote:
> 
> > Add a PCI driver which registers all child nodes specified in the
> > devicetree.  It will allow platform devices to be used on virtual
> > systems which already support PCI and devicetree, such as UML with
> > virt-pci.
> > 
> > The driver has no id_table by default; user space needs to provide one
> > using the new_id mechanism in sysfs.
> 
> This feels wrong for several reasons.
> 
> Firstly, I think Greg (Cc:ed) will have something to say about this.

Yes, this isn't ok.  Please write a real driver for the hardware under
control here, and that would NOT be a MFD driver (hint, if you want to
split up a PCI device into different drivers, use the aux bus code, that
is what it is there for.)

thanks,

greg k-h

  parent reply	other threads:[~2023-01-23 16:31 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-23 14:32 [PATCH] mfd: Add Simple PCI MFD driver Vincent Whitchurch
2023-01-23 15:32 ` Lee Jones
2023-01-23 16:02   ` Vincent Whitchurch
2023-01-23 16:36     ` Rob Herring
2023-01-24  2:30       ` Lizhi Hou
2023-01-24 13:15       ` Vincent Whitchurch
2023-01-23 16:31   ` Greg Kroah-Hartman [this message]
2023-01-25 10:15     ` Vincent Whitchurch
2023-01-25 12:29       ` Greg Kroah-Hartman
2023-01-25 13:06         ` Vincent Whitchurch
2023-01-25 13:34           ` Greg Kroah-Hartman
2023-01-25 14:54         ` Rob Herring
2023-01-25 15:00           ` Greg Kroah-Hartman
2023-01-25 15:34             ` Rob Herring
2023-01-31 15:07               ` Greg Kroah-Hartman
2023-01-23 16:13 ` Rob Herring
2023-01-24 12:54   ` Vincent Whitchurch

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