From mboxrd@z Thu Jan 1 00:00:00 1970 From: Shawn Guo Subject: Re: [PATCH v1] ARM: dts: imx6dl: disable dma support for spi on i.mx6dl Date: Wed, 10 Sep 2014 11:21:30 +0800 Message-ID: <20140910032128.GD18566@dragon> References: <1410312816-32171-1-git-send-email-b38343@freescale.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Return-path: Content-Disposition: inline In-Reply-To: <1410312816-32171-1-git-send-email-b38343-KZfg59tc24xl57MIdRCFDg@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Robin Gong Cc: kernel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org, robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, pawel.moll-5wv7dgnIgG8@public.gmane.org, mark.rutland-5wv7dgnIgG8@public.gmane.org, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org, galak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org, linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Frank.Li-KZfg59tc24xl57MIdRCFDg@public.gmane.org List-Id: devicetree@vger.kernel.org On Wed, Sep 10, 2014 at 09:33:36AM +0800, Robin Gong wrote: > There is one weird data in rxfifo after one full rx/tx transfer > done sometimes. It looks a design issue and hard to workaround > totally, so disable dma functhion here. And will re-enable it > once the root cause found. > > Signed-off-by: Robin Gong > --- > arch/arm/boot/dts/imx6dl.dtsi | 16 ++++++++++++++++ > 1 file changed, 16 insertions(+) > > diff --git a/arch/arm/boot/dts/imx6dl.dtsi b/arch/arm/boot/dts/imx6dl.dtsi > index b453e0e..e84a1ff 100644 > --- a/arch/arm/boot/dts/imx6dl.dtsi > +++ b/arch/arm/boot/dts/imx6dl.dtsi > @@ -102,6 +102,22 @@ > }; > }; > > +&ecspi1 { > + dma-names = "", ""; > +}; > + > +&ecspi2 { > + dma-names = "", ""; > +}; > + > +&ecspi3 { > + dma-names = "", ""; > +}; > + > +&ecspi4 { > + dma-names = "", ""; > +}; > + This looks odd. Can we drop the dma properties from imx6qdl.dtsi, and only add them in imx6q.dtsi instead? Shawn > &hdmi { > compatible = "fsl,imx6dl-hdmi"; > }; > -- > 1.9.1 > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html