From patchwork Mon Feb 12 05:15:48 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joel Stanley X-Patchwork-Id: 127928 Delivered-To: patch@linaro.org Received: by 10.46.124.24 with SMTP id x24csp2879049ljc; Sun, 11 Feb 2018 21:17:33 -0800 (PST) X-Google-Smtp-Source: AH8x225i/Dt/S5V29IwwvzOCyyb/LPIR4cOttW2qwU5ezqFJcgKKo6EEBIgjIRtNmOtveike4HHn X-Received: by 10.98.16.9 with SMTP id y9mr10636748pfi.189.1518412653033; Sun, 11 Feb 2018 21:17:33 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1518412653; cv=none; d=google.com; s=arc-20160816; b=BRta+jXr/bdhidietaCgHzylAtA//nt+HOu/6XAAyzNWz7s8zDEd+6LuLo2iYlAckJ TmHOoSBNVGZMVnJZB3QMcnqi3am6hOTLD1cOonXuVFJWDGfzksnEB3Lsl6eckhP9UqUg JBvGyOhpGz0pBg8Cy32c0V9VsTHKf3Fc3xyaX25zfsYf4UYhRmoAp7dlYKnJ4X3kEfeV aa7Kz5//LFlMKr8bMMbHSihoIaOtYG3jj/MSA5dkzrHGilWPAblZduQmPjoXBj3H9cwv q8KN8+tGdWz8QCIyYw192vmH8+4nfkjCcpCoxmjOsHqCZUwQI3lNhXYQLtfgS/LUbCxU NaNg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:references:in-reply-to:message-id:date :subject:cc:to:from:dkim-signature:arc-authentication-results; bh=bNh62kp8qiNI3BUdYhu3O5yIiz7cfJPyAhkJDwgdBFs=; b=eQbghDaNt1QkhCJY110dF0xML/exDjFJTsXvi/dwyIGmHD9ETbIL5YhN6LuBlqQJ35 2TRtK6xtCGOK6bJA9rsYGKvFX1/5xUTuu4aPIy6vFJGeF07YjUO+XRYbHSPOeCuky7i3 jRZJvY6ZOBwrtNx3Lb5clf7aDATe3DQ2MxK4jKzq/O/UULA1WN4OR+ti9ciolR1rUarb g54tqQjiv6WDgEIM4gBhHM+t2hBCm+BwACruGhtRCDV2qPb5dzERzYf6XiqrE+NsvUUK 2idoV3yAfKdryPwfbwH7d+KVnI5zvVe2UIrDqxZqgXndEUqJ9c+UvLibqwOZtIJhGvTM o56A== ARC-Authentication-Results: i=1; mx.google.com; dkim=neutral (body hash did not verify) header.i=@gmail.com header.s=20161025 header.b=OjspTIcS; spf=pass (google.com: best guess record for domain of devicetree-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=devicetree-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id g5si4781952pgp.433.2018.02.11.21.17.32; Sun, 11 Feb 2018 21:17:33 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of devicetree-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=neutral (body hash did not verify) header.i=@gmail.com header.s=20161025 header.b=OjspTIcS; spf=pass (google.com: best guess record for domain of devicetree-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=devicetree-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932695AbeBLFRa (ORCPT + 6 others); Mon, 12 Feb 2018 00:17:30 -0500 Received: from mail-pg0-f67.google.com ([74.125.83.67]:37638 "EHLO mail-pg0-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932467AbeBLFR1 (ORCPT ); Mon, 12 Feb 2018 00:17:27 -0500 Received: by mail-pg0-f67.google.com with SMTP id o1so6821506pgn.4; Sun, 11 Feb 2018 21:17:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references; bh=R2fi9dEw2GrkHAYwMSiZ7445jXCPYwkaXsj7fqtAgbI=; b=OjspTIcSF6PJqnOJ2vacc4jqDK8SsP8Il4FyIi2GHvgdFHphXl9LsYC/+lQdu22tqV sU1ooeU/ishK6kX1BivDbT+TS2rjJrYEr1mOz7JTS9bCTdri8w7GzKrqQJPG5BtuoImK YXk3L0tHDmU+36T4XFmCGlsYPVEf1yzxQcF7Xx0OHuxGefx/2WDLuQOo27bNOm+ETQvY L4zHw8iGwGaaIHYfvYE4MvaaNFcTb2d9TW/Z5aX+akfX+NJMdu/pOB2KVAzErUCrcKBU eH6xJHCm6c7xetKRHscUMVhNv6FH6yFlmMpU5sTVH8Q1zb+JUaQH8FZRUzxEXffz+6Vv 8cIw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references; bh=R2fi9dEw2GrkHAYwMSiZ7445jXCPYwkaXsj7fqtAgbI=; b=HXU3NHn5kyxAHu4no9f3S7k/VmVqIydPQ/3MjlRQB1KM6P/KO3wcnoQhXPFJDowOIX IZSsvj/FFIXE0ftzCxDwVJGd481bqd1eXPdTx7DUKSdjXB9fiQ1R7eyZCMvlQeR/Uicq UlZGWN3z/sYJyOE2VmB0vXnrL2w+UrNvrjRzSgVmyzd07lVdJTETdcUc3CC7W38vGxZu DzoXTxyTlUFuL6ziMKof0iNWSMB7toV5MJ7wV+w8BAnNbOgyxk6Qv0kN21MgkrsAeFMm Xqc1U7NA6XqQR+2e9IeTvLQIRHC31x5X3MIQ6E+1IdKyZAtJ2dB1UkezWIQQDbDbF179 EyrA== X-Gm-Message-State: APf1xPDwHbi9VZ7zw4LcoeOywRWao8mmZZqIBFIxalZYgiC52RyavlJh 7wR/QXhkw5NS3dGmwRxx6yA= X-Received: by 10.101.92.138 with SMTP id a10mr8459575pgt.191.1518412647033; Sun, 11 Feb 2018 21:17:27 -0800 (PST) Received: from aurora.jms.id.au ([203.0.153.9]) by smtp.gmail.com with ESMTPSA id v1sm20735911pfg.33.2018.02.11.21.17.22 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Sun, 11 Feb 2018 21:17:26 -0800 (PST) Received: by aurora.jms.id.au (sSMTP sendmail emulation); Mon, 12 Feb 2018 15:47:19 +1030 From: Joel Stanley To: Greg Kroah-Hartman , Rob Herring , Mark Rutland Cc: Christopher Bostic , Jeremy Kerr , Brad Bishop , Edward James , linux-kernel@vger.kernel.org, devicetree@vger.kernel.org Subject: [PATCH 09/10] dt-bindings: fsi: Add optional property no-scan-on-init Date: Mon, 12 Feb 2018 15:45:48 +1030 Message-Id: <20180212051549.8575-10-joel@jms.id.au> X-Mailer: git-send-email 2.15.1 In-Reply-To: <20180212051549.8575-1-joel@jms.id.au> References: <20180212051549.8575-1-joel@jms.id.au> Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Christopher Bostic Add an optional FSI master property 'no-scan-on-init. This can be specified to indicate that a master should not be automatically scanned at init time. This is required in cases where a scan could interfere with another FSI master on the same bus. Signed-off-by: Christopher Bostic Acked-by: Jeremy Kerr Signed-off-by: Joel Stanley --- Documentation/devicetree/bindings/fsi/fsi.txt | 7 +++++++ 1 file changed, 7 insertions(+) -- 2.15.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/Documentation/devicetree/bindings/fsi/fsi.txt b/Documentation/devicetree/bindings/fsi/fsi.txt index 4eaf488d4015..ab516c673a4b 100644 --- a/Documentation/devicetree/bindings/fsi/fsi.txt +++ b/Documentation/devicetree/bindings/fsi/fsi.txt @@ -56,6 +56,13 @@ addresses (link index and slave ID), and no size: #address-cells = <2>; #size-cells = <0>; +An optional boolean property can be added to indicate that a particular master +should not scan for connected devices at initialization time. This is +necessary in cases where a scan could cause arbitration issues with other +masters that may be present on the bus. + + no-scan-on-init; + FSI slaves ----------