linux-kernel - Re: [PATCH] drm: panels: fix spi aliases of former omap panels

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Date:   Mon, 7 Oct 2019 20:16:35 +0300
From:   Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:     Andreas Kemnade <andreas@...nade.info>
Cc:     Sebastian Reichel <sre@...nel.org>, thierry.reding@...il.com,
        sam@...nborg.org, airlied@...ux.ie, daniel@...ll.ch,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        omi Valkeinen <tomi.valkeinen@...com>,
        Discussions about the Letux Kernel 
        <letux-kernel@...nphoenux.org>, Tony Lindgren <tony@...mide.com>,
        Jyri Sarha <jsarha@...com>,
        Linux-OMAP <linux-omap@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] drm: panels: fix spi aliases of former omap panels

Hi Andreas,

On Mon, Oct 07, 2019 at 07:14:28PM +0200, Andreas Kemnade wrote:
> On Mon, 7 Oct 2019 19:04:46 +0200 Sebastian Reichel wrote:
> > On Mon, Oct 07, 2019 at 06:41:30PM +0200, Andreas Kemnade wrote:
> > > When the panels were moved from omap/displays/ to panel/
> > > omapdss prefix was stripped, which cause spi modalias
> > > to not contain the vendor-prefix anymore.
> > > 
> > > so we had e.g. in former times:
> > > compatible=omapdss,tpo,td028ttec1 -> modalias=spi:tpo,td028ttec1
> > > now:
> > > compatible=tpo,td028ttec1 -> modalias=spi:td028ttec1
> > > 
> > > This is consistent with other drivers. Tested the td028ttec.c
> > > only, but the pattern looks the same for the other ones.
> > > 
> > > Fixes: 45f16c82db7e8 ("drm/omap: displays: Remove unused panel drivers")
> > > Signed-off-by: Andreas Kemnade <andreas@...nade.info>
> > > ---  
> > 
> > Patch looks good to me, but you have one false positive.
> > 
> > > [...]
> > >
> > > diff --git a/drivers/gpu/drm/panel/panel-sharp-ls037v7dw01.c b/drivers/gpu/drm/panel/panel-sharp-ls037v7dw01.c
> > > index 46cd9a2501298..838d39a263f53 100644
> > > --- a/drivers/gpu/drm/panel/panel-sharp-ls037v7dw01.c
> > > +++ b/drivers/gpu/drm/panel/panel-sharp-ls037v7dw01.c
> > > @@ -204,7 +204,7 @@ static int ls037v7dw01_remove(struct platform_device *pdev)
> > >  }
> > >  
> > >  static const struct of_device_id ls037v7dw01_of_match[] = {
> > > -	{ .compatible = "sharp,ls037v7dw01", },
> > > +	{ .compatible = "ls037v7dw01", },
> > >  	{ /* sentinel */ },
> > >  };
> > 
> > The DT compatible should have a vendor prefix.
> 
> oops, sorry, but I it seems that Laurent already has submitted a fix.

Seems we've been racing each other :-S Feel free to submit a v2 of this
patch if you think it's better than my series. As long as the problem
gets fixed, I'll be happy :-)

-- 
Regards,

Laurent Pinchart