From mboxrd@z Thu Jan 1 00:00:00 1970 From: Will Deacon Subject: Re: [PATCH] dt-bindings: arm,gic-v3: require that reserved cells are always 0 Date: Wed, 3 Feb 2016 18:40:18 +0000 Message-ID: <20160203184017.GA15852@arm.com> References: <1454522458-29643-1-git-send-email-will.deacon@arm.com> <20160203182054.GH1234@leverpostej> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20160203182054.GH1234@leverpostej> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Mark Rutland Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, Marc Zyngier List-Id: devicetree@vger.kernel.org On Wed, Feb 03, 2016 at 06:20:54PM +0000, Mark Rutland wrote: > On Wed, Feb 03, 2016 at 06:00:58PM +0000, Will Deacon wrote: > > Consequently, any extensions to the PPI or SPI interrupt specifiers must > > be able to work with random crap from legacy DTs, effectively > > necessitating a new interrupt type in the first cell. Sigh. > > I'm not sure that's true if we allocate a new value for the 1st cell for > "extended" PPI or SPI interrupt-sepcficiers (which presumably add > restrictions). That would also allow old kernels to safely skip such > interrupts rather than mis-parsing them. Right, that's what I said :) > > This patch fixes the text so that additional, reserved cells are > > required to be zero. This looks like a reasonable thing to require and > > is already satisifed by the .dts files in-tree. > > > > Cc: Mark Rutland > > Cc: Marc Zyngier > > Signed-off-by: Will Deacon > > This patch itself makes sense, so FWIW: > > Acked-by: Mark Rutland > > Any proposed extention to the binding requires its own discussion. Yup. Marc -- can you queue this please? Will -- 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