From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mika Westerberg Subject: Re: [PATCH v2 5/8] v4l: Switch from V4L2 OF not V4L2 fwnode API Date: Mon, 10 Apr 2017 12:21:47 +0300 Message-ID: <20170410092147.GE2957@lahna.fi.intel.com> References: <1491484330-12040-1-git-send-email-sakari.ailus@linux.intel.com> <14918382.izlyCngq8n@avalon> <20170407105805.GG4192@valkosipuli.retiisi.org.uk> <1895617.xparv3opoe@avalon> <20170407225515.GM4192@valkosipuli.retiisi.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mga11.intel.com ([192.55.52.93]:46504 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753120AbdDJJV4 (ORCPT ); Mon, 10 Apr 2017 05:21:56 -0400 Content-Disposition: inline In-Reply-To: <20170407225515.GM4192@valkosipuli.retiisi.org.uk> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Sakari Ailus Cc: Laurent Pinchart , Sakari Ailus , linux-media@vger.kernel.org, linux-acpi@vger.kernel.org, devicetree@vger.kernel.org On Sat, Apr 08, 2017 at 01:55:15AM +0300, Sakari Ailus wrote: > > My ACPI knowledge is limited, but don't ACPI nodes have 4 character names that > > can be combined in a string to create a full path ? > > There is something, yes, but the ACPI framework currently has no such > functionality. I believe it could be implemented though. Cc Mika. All ACPI node names are 32-bit integers and those are combined to form a path, like \_SB.PCI0.I2C0 and so on. A single ACPI node name cannot be larger than 4 chars, though.