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Date:   Wed, 19 Apr 2023 13:37:04 -0500
From:   Bjorn Helgaas <helgaas@...nel.org>
To:     Thomas Zimmermann <tzimmermann@...e.de>
Cc:     Patrick McLean <chutzpah@...too.org>,
        Dave Airlie <airlied@...hat.com>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        "open list:DRM DRIVER FOR AST SERVER GRAPHICS CHIPS" 
        <dri-devel@...ts.freedesktop.org>,
        open list <linux-kernel@...r.kernel.org>,
        "open list:PCI SUBSYSTEM" <linux-pci@...r.kernel.org>
Subject: Re: [PATCH] PCI: Add ASPEED vendor ID

On Wed, Apr 19, 2023 at 09:00:15AM +0200, Thomas Zimmermann wrote:
> Am 19.04.23 um 00:57 schrieb Patrick McLean:
> > Currently the ASPEED PCI vendor ID is defined in
> > drivers/gpu/drm/ast/ast_drv.c, move that to include/linux/pci_ids.h
> > with all the rest of the PCI vendor ID definitions. Rename the definition
> > to follow the format that the other definitions follow.
> 
> Thanks a lot. Can you please also move and rename the PCI device ids? [1]

Generally we move things to pci_ids.h only when they are shared
between multiple drivers.  This is mostly to make backports easier.

PCI_VENDOR_ID_ASPEED is (or will be) used in both ast_drv.c and
libata-core.c, so it qualifies.

It doesn't look like PCI_CHIP_AST2000 and PCI_CHIP_AST2100 would
qualify since they're only used in ast_drv.c and ast_main.c, which are
part of the same driver.

> [1] https://elixir.bootlin.com/linux/v6.2/source/drivers/gpu/drm/ast/ast_drv.h#L52
> 
> > 
> > Signed-off-by: Patrick McLean <chutzpah@...too.org>
> > ---
> >   drivers/gpu/drm/ast/ast_drv.c | 4 +---
> >   include/linux/pci_ids.h       | 2 ++
> >   2 files changed, 3 insertions(+), 3 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/ast/ast_drv.c b/drivers/gpu/drm/ast/ast_drv.c
> > index d78852c7cf5b..232e797793b6 100644
> > --- a/drivers/gpu/drm/ast/ast_drv.c
> > +++ b/drivers/gpu/drm/ast/ast_drv.c
> > @@ -70,12 +70,10 @@ static const struct drm_driver ast_driver = {
> >    * PCI driver
> >    */
> > -#define PCI_VENDOR_ASPEED 0x1a03
> > -
> >   #define AST_VGA_DEVICE(id, info) {		\
> >   	.class = PCI_BASE_CLASS_DISPLAY << 16,	\
> >   	.class_mask = 0xff0000,			\
> > -	.vendor = PCI_VENDOR_ASPEED,			\
> > +	.vendor = PCI_VENDOR_ID_ASPEED,			\
> >   	.device = id,				\
> >   	.subvendor = PCI_ANY_ID,		\
> >   	.subdevice = PCI_ANY_ID,		\
> > diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
> > index 45c3d62e616d..40e04e88ca5a 100644
> > --- a/include/linux/pci_ids.h
> > +++ b/include/linux/pci_ids.h
> > @@ -2553,6 +2553,8 @@
> >   #define PCI_DEVICE_ID_NETRONOME_NFP3800_VF	0x3803
> >   #define PCI_DEVICE_ID_NETRONOME_NFP6000_VF	0x6003
> > +#define PCI_VENDOR_ID_ASPEED		0x1a03
> > +
> >   #define PCI_VENDOR_ID_QMI		0x1a32
> >   #define PCI_VENDOR_ID_AZWAVE		0x1a3b
> 
> -- 
> Thomas Zimmermann
> Graphics Driver Developer
> SUSE Software Solutions Germany GmbH
> Maxfeldstr. 5, 90409 Nürnberg, Germany
> (HRB 36809, AG Nürnberg)
> Geschäftsführer: Ivo Totev



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