From mboxrd@z Thu Jan 1 00:00:00 1970 From: lee.jones@linaro.org (Lee Jones) Date: Mon, 17 Dec 2012 08:31:35 +0000 Subject: Warnings from u9500 device trees In-Reply-To: References: Message-ID: <20121217083135.GU27617@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Olof, > Known issue? I haven't seen a patch for it on the lists yet. > > Warning (reg_format): "reg" property in > /soc-u9500/prcmu at 80157000/ab8500 at 5 has invalid length (4 bytes) > (#address-cells == 1, #size-cells == 1) > Warning (reg_format): "reg" property in > /soc-u9500/prcmu at 80157000/ab8500 at 5 has invalid length (4 bytes) > (#address-cells == 1, #size-cells == 1) > Warning (reg_format): "reg" property in > /soc-u9500/prcmu at 80157000/ab8500 at 5 has invalid length (4 bytes) > (#address-cells == 1, #size-cells == 1) > Warning (reg_format): "reg" property in > /soc-u9500/prcmu at 80157000/ab8500 at 5 has invalid length (4 bytes) > (#address-cells == 1, #size-cells == 1) > > > prcmu has #address-cells of 1, and #size-cells of 1, but the reg is > just a single cell on that entry (<5>). Something's weird with either > the binding you've implemented, or how you specified the device tree. > > The changes are old too, since March. No one else has noticed this > since then? Are there no users of this platform? :( Neither. We've known about it since March (including Arnd), but it's not important. The issue is that #size-cells can't be 0, but the AB8500 uses mailboxes not registers, so there is no size per-say. I have requested that we remove the 'reg' property entirely, as the Mailbox number is hard-coded, but Arnd wasn't a fan, so we just left it as-is. Out of interest, why are you getting 4 errors? Are you building all of the DTS:es at once? Kind regards, Lee > commit 7e0ce270b2ef3d0d00c3f0725f48aa3127d73edf > Author: Lee Jones > AuthorDate: Thu Mar 15 16:46:17 2012 +0000 > Commit: Arnd Bergmann > CommitDate: Fri Mar 16 19:46:13 2012 +0000 > > ARM: ux500: db8500: list most devices in the snowball device tree > > > -Olof -- Lee Jones Linaro ST-Ericsson Landing Team Lead Linaro.org ? Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog