From mboxrd@z Thu Jan 1 00:00:00 1970 From: Karl Beldan Subject: Re: [v3] spi: orion: support armada extended baud rates Date: Wed, 15 Oct 2014 15:10:54 +0200 Message-ID: <20141015131054.GA3243@gobelin> References: <20141011144857.GA17350@gobelin> <543C8460.1060508@uclinux.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Cc: broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Greg Ungerer Return-path: Content-Disposition: inline In-Reply-To: <543C8460.1060508-JBU5SbJe1FlAfugRpC6u6w@public.gmane.org> Sender: linux-spi-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: On Tue, Oct 14, 2014 at 12:03:12PM +1000, Greg Ungerer wrote: > Hi Karl, > > On 12/10/14 00:52, Karl Beldan wrote: > > On 28/09/14 23:24:04, Greg Ungerer wrote: > >> @@ -378,6 +452,10 @@ static int orion_spi_probe(struct platform_device *pdev) > >> spi = spi_master_get_devdata(master); > >> spi->master = master; > >> > >> + of_id = of_match_device(orion_spi_of_match_table, &pdev->dev); > >> + devdata = of_id->data; > >> + spi->devdata = devdata; > >> + > > Won't of_match_device return NULL on non-DT systems, and further > > references oops ? > > Yes, sure enough. > > So I propose to fix with this change. > > diff --git a/drivers/spi/spi-orion.c b/drivers/spi/spi-orion.c > index acf8e48..c069ccd 100644 > --- a/drivers/spi/spi-orion.c > +++ b/drivers/spi/spi-orion.c > @@ -453,7 +453,7 @@ static int orion_spi_probe(struct platform_device *pdev) > spi->master = master; > > of_id = of_match_device(orion_spi_of_match_table, &pdev->dev); > - devdata = of_id->data; > + devdata = (of_id) ? of_id->data : &orion_spi_dev_data; > spi->devdata = devdata; > I am not aware of the policy in the DT subsystem, I see some drivers bailing out when not getting any match, some remove non-DT support and add a dependency on OF, yet a message would feel appropriate. Other than that ok, it should fix df59fa7f4bca. Karl -- To unsubscribe from this list: send the line "unsubscribe linux-spi" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html