Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752011AbdI1VgP (ORCPT ); Thu, 28 Sep 2017 17:36:15 -0400 Received: from gate2.alliedtelesis.co.nz ([202.36.163.20]:54570 "EHLO gate2.alliedtelesis.co.nz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751554AbdI1VgJ (ORCPT ); Thu, 28 Sep 2017 17:36:09 -0400 From: Kalyan Kinthada To: jason@lakedaemon.net, andrew@lunn.ch, gregory.clement@free-electrons.com, sebastian.hesselbarth@gmail.com, robh+dt@kernel.org, mark.rutland@arm.com, linux@armlinux.org.uk, wsa@the-dreams.de, devicetree@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org, Chris Packham , Kalyan Kinthada Subject: [PATCH v2 2/2] dt-bindings: i2c: Update documentation for "mv78230-a0-i2c" Date: Fri, 29 Sep 2017 10:36:05 +1300 Message-Id: <20170928213605.22874-3-kalyan.kinthada@alliedtelesis.co.nz> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20170928213605.22874-1-kalyan.kinthada@alliedtelesis.co.nz> References: <20170928213605.22874-1-kalyan.kinthada@alliedtelesis.co.nz> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1751 Lines: 37 This commit modifies the documentation for "marvell,mv78230-a0-i2c" compatible string. The "marvell,mv78230-a0-i2c" compatible string enables the workaround for an i2c repeated start timing violation, but unlike "marvell,mv78230-i2c" it disables the i2c offload support. This is applicable to a number of SoCs such as early revisions of the Armada XP and the Armada 38x. Signed-off-by: Kalyan Kinthada --- Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt b/Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt index 5c30026921ae..c6cbab17ed0a 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt +++ b/Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt @@ -10,10 +10,12 @@ Required properties : - "marvell,mv64xxx-i2c" - "marvell,mv78230-i2c" - "marvell,mv78230-a0-i2c" - * Note: Only use "marvell,mv78230-a0-i2c" for a - very rare, initial version of the SoC which - had broken offload support. Linux - auto-detects this and sets it appropriately. + * Note: Use "marvell,mv78230-a0-i2c" for + controller which do not support offload + but still have the i2c repeated start + timing violation issue, such as the + ones found in the Armada XP A0 and the + Armada 38x SoCs. - interrupts : The interrupt number Optional properties : -- 2.14.1