[PATCH 1/7] drm/panel: sitronix-st7789v: Prevent core spi warnings

[Sebastian Reichel]

Hi,

On Tue, Jun 13, 2023 at 08:56:30AM +0200, Miquel Raynal wrote:
> Hi Michael,
> 
> michael.riesch at wolfvision.net wrote on Tue, 13 Jun 2023 08:15:26 +0200:
> 
> > Hi Miquel,
> > 
> > On 6/9/23 16:59, Miquel Raynal wrote:
> > > The spi core warns us about using an of_device_id table without a  
> > 
> > s/spi/SPI ?
> 
> Actually both are accepted in the kernel, IIRC it depends whether you
> refer to the name of the bus or the Linux subsystem. Same for picking
> "a" vs "an" before "spi/SPI". An attempt to use a unique formatting was
> actually canceled because both are used equivalently and I believe even
> the spi maintainer and the spi-nor maintainer kind of disagreed on the
> default :)
> 
> > > spi_device_id table aside for module utilities in orter to not rely on  
> > 
> > s/in orter to/in order to ?
> 
> Yes, sorry for this typo as well as the two others you rightly pointed
> out in another patch. I'll fix them.
> 
> > > OF modaliases. Just add this table using the device name without the
> > > vendor prefix (as it is usually done).
> > >
> > > Signed-off-by: Miquel Raynal <miquel.raynal at bootlin.com>
> > > ---
> > >  drivers/gpu/drm/panel/panel-sitronix-st7789v.c | 7 +++++++
> > >  1 file changed, 7 insertions(+)
> > >
> > > diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7789v.c  
> > b/drivers/gpu/drm/panel/panel-sitronix-st7789v.c
> > > index bbc4569cbcdc..c67b9adb157f 100644
> > > --- a/drivers/gpu/drm/panel/panel-sitronix-st7789v.c
> > > +++ b/drivers/gpu/drm/panel/panel-sitronix-st7789v.c
> > > @@ -400,9 +400,16 @@ static const struct of_device_id  
> > st7789v_of_match[] = {
> > >  };
> > >  MODULE_DEVICE_TABLE(of, st7789v_of_match);
> > >
> > > +static const struct spi_device_id st7789v_ids[] = {
> > > +	{ "st7789v", },
> > > +	{ /* sentinel */ }
> > > +};
> > > +MODULE_DEVICE_TABLE(spi, st7789v_ids);
> > > +
> > >  static struct spi_driver st7789v_driver = {
> > >  	.probe = st7789v_probe,
> > >  	.remove = st7789v_remove,
> > > +	.id_table = st7789v_ids,
> > >  	.driver = {
> > >  		.name = "st7789v",
> > >  		.of_match_table = st7789v_of_match,  
> > 
> > May I point to you Sebastian Reichel's series that features a partial
> > overlap with your work? [0]
> 
> Woow. That driver has been untouched for years and now two
> contributions at the same time.

Three actually. Michael also submitted a series :)

> Sebastian, what is the current state of your series?

The DT changes got Ack'd by Rob and I have the R-B from Michael
(minus a minor comment to make the panel struct 'static const').
It's mainly waiting for a review from Sam.

I was a bit distracted by a boot regression on the devices and
some other projects. The boot regression got solved, so I can
prepare a new version if that makes things easier.

> Shall I base my work on top of yours? Or is it still too
> premature and we shall instead try to merge both and contribute a new
> version of the series bringing support for the two panels?

I suppose whatever is easier for Sam to review.

-- Sebastian
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