From patchwork Fri Aug 28 17:52:37 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Griffin X-Patchwork-Id: 31116 Received: from mail.tu-berlin.de ([130.149.7.33]) by www.linuxtv.org with esmtp (Exim 4.72) (envelope-from ) id 1ZVNrf-00082c-K4; Fri, 28 Aug 2015 19:54:59 +0200 X-tubIT-Incoming-IP: 209.132.180.67 Received: from vger.kernel.org ([209.132.180.67]) by mail.tu-berlin.de (exim-4.76/mailfrontend-5) with esmtp id 1ZVNrd-0003s8-8p; Fri, 28 Aug 2015 19:54:59 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753336AbbH1Rw6 (ORCPT + 1 other); Fri, 28 Aug 2015 13:52:58 -0400 Received: from mail-wi0-f170.google.com ([209.85.212.170]:36274 "EHLO mail-wi0-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753317AbbH1Rw4 (ORCPT ); Fri, 28 Aug 2015 13:52:56 -0400 Received: by wicfv10 with SMTP id fv10so14042655wic.1 for ; Fri, 28 Aug 2015 10:52:55 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=TZoDqxoTqkdDweIkD6S4Eu6IbUvApO9kM6UFbAYDecU=; b=Gt2FtNlne1bmWHax1qf+eSBKOyfZR/E833vMDofscIzrlHyrrLNsoHHT1J/3L3pHGq v2uiF0f8UQvucZoOytWsKgMJZB23yLbqCXGW8PSaaiIUJOdfIc8LM9Gddt7q5WkHel1X b4pKVh4SQxR8ZUg6o5mf2n0WV0LYtDS4wO8zgVvmoCLfjug9WW4lPL4Iepq+L6UziEgn QLSFGhnwUEQ7xiwZrC8fJrejcy0/Al82py2qMSKd31uNSeadA3pz3oMUTGCJUkXXQJBS cztujOHNT2EgQr5rLPYtUCLTZ+7zaI21AxrknmWDaSs+d+k6R3ulQI5T1ToORFQmWnnZ 2Gig== X-Gm-Message-State: ALoCoQmKsisp1Agzf4yxAICl/p38Ea7A1a+oHiXN1YpW4JeHGIXeFFzp7XxTfTK27yzlSQI0igRn X-Received: by 10.180.80.138 with SMTP id r10mr5744277wix.18.1440784375358; Fri, 28 Aug 2015 10:52:55 -0700 (PDT) Received: from localhost.localdomain (cpc14-aztw22-2-0-cust189.18-1.cable.virginm.net. [82.45.1.190]) by smtp.gmail.com with ESMTPSA id d7sm4781243wiz.22.2015.08.28.10.52.54 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 28 Aug 2015 10:52:54 -0700 (PDT) From: Peter Griffin To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, srinivas.kandagatla@gmail.com, maxime.coquelin@st.com, patrice.chotard@st.com, mchehab@osg.samsung.com Cc: peter.griffin@linaro.org, lee.jones@linaro.org, linux-media@vger.kernel.org, devicetree@vger.kernel.org, valentinrothberg@gmail.com, hugues.fruchet@st.com Subject: [PATCH v3 1/6] ARM: DT: STi: stihxxx-b2120: Add pulse-width properties to ssc2 & ssc3 Date: Fri, 28 Aug 2015 18:52:37 +0100 Message-Id: <1440784362-31217-2-git-send-email-peter.griffin@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1440784362-31217-1-git-send-email-peter.griffin@linaro.org> References: <1440784362-31217-1-git-send-email-peter.griffin@linaro.org> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-PMX-Version: 6.0.0.2142326, Antispam-Engine: 2.7.2.2107409, Antispam-Data: 2015.8.28.174518 X-PMX-Spam: Gauge=IIIIIIII, Probability=8%, Report=' MULTIPLE_RCPTS 0.1, HTML_00_01 0.05, HTML_00_10 0.05, BODYTEXTP_SIZE_3000_LESS 0, BODY_SIZE_1100_1199 0, BODY_SIZE_2000_LESS 0, BODY_SIZE_5000_LESS 0, BODY_SIZE_7000_LESS 0, NO_URI_HTTPS 0, REFERENCES 0, SINGLE_URI_IN_BODY 0, URI_ENDS_IN_HTML 0, __ANY_URI 0, __CP_URI_IN_BODY 0, __HAS_FROM 0, __HAS_MSGID 0, __HAS_X_MAILER 0, __HAS_X_MAILING_LIST 0, __IN_REP_TO 0, __MIME_TEXT_ONLY 0, __MULTIPLE_RCPTS_CC_X2 0, __MULTIPLE_RCPTS_TO_X5 0, __REFERENCES 0, __SANE_MSGID 0, __SINGLE_URI_TEXT 0, __SUBJ_ALPHA_END 0, __TO_MALFORMED_2 0, __TO_NO_NAME 0, __URI_IN_BODY 0, __URI_NO_WWW 0, __URI_NS , __YOUTUBE_RCVD 0' Adding these properties makes the I2C bus to the demodulators much more reliable, and we no longer suffer from I2C errors when tuning. Signed-off-by: Peter Griffin Acked-by: Lee Jones --- arch/arm/boot/dts/stihxxx-b2120.dtsi | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/arch/arm/boot/dts/stihxxx-b2120.dtsi b/arch/arm/boot/dts/stihxxx-b2120.dtsi index f589fe4..62994ae 100644 --- a/arch/arm/boot/dts/stihxxx-b2120.dtsi +++ b/arch/arm/boot/dts/stihxxx-b2120.dtsi @@ -27,12 +27,18 @@ }; }; - i2c@9842000 { + ssc2: i2c@9842000 { status = "okay"; + clock-frequency = <100000>; + st,i2c-min-scl-pulse-width-us = <0>; + st,i2c-min-sda-pulse-width-us = <5>; }; - i2c@9843000 { + ssc3: i2c@9843000 { status = "okay"; + clock-frequency = <100000>; + st,i2c-min-scl-pulse-width-us = <0>; + st,i2c-min-sda-pulse-width-us = <5>; }; i2c@9844000 {