From patchwork Thu Aug 27 12:29:31 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Griffin X-Patchwork-Id: 31097 Received: from mail.tu-berlin.de ([130.149.7.33]) by www.linuxtv.org with esmtp (Exim 4.72) (envelope-from ) id 1ZUwK6-00077O-Ck; Thu, 27 Aug 2015 14:30:30 +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-8) with esmtp id 1ZUwK2-00053p-jH; Thu, 27 Aug 2015 14:30:27 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753999AbbH0MaR (ORCPT + 1 other); Thu, 27 Aug 2015 08:30:17 -0400 Received: from mail-wi0-f180.google.com ([209.85.212.180]:37659 "EHLO mail-wi0-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753115AbbH0MaO (ORCPT ); Thu, 27 Aug 2015 08:30:14 -0400 Received: by widdq5 with SMTP id dq5so43597069wid.0 for ; Thu, 27 Aug 2015 05:30:12 -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=mkw96STYyHBvE3i5ij5UUByu6IbUy83I39zMHbCmkO4=; b=IPoOz/ByvgloJyYCxhuXYIUWEgIyNCB2551DXQAIeA62e5t/N0rWHd+MmAIcDLXLb7 PWzPPyPuv1OxqXW4Ne3eBFvH86GZelceSa7zNroqBnJ/mU9hg1srs25nm3+wlMxaRbmT AeI3OHRla5cVOwUdzjlOhV+pk/gJ7lIA/8jB9WaS5XWWgR6QH9ift1SsRUJRmQRnp85A WllsRn1o8cHfsD4Qira9+YGXpL1zCrwj9NlQaczzOWM4eGQFKHMAuD9Hyxoc2r6R9QPY T9q+wuOfNRIa0/hurOBKuUkbrtKhXg18HSHS+us8Sri4dAn7YrCJAwr+375rALb4ViOn 8kKQ== X-Gm-Message-State: ALoCoQkHbY+oYVomOARYMj5O7S6ddGVJ1giFKetaqsWVDBqUUk0A4U0mlC6JNTHIPVQdAXK8pDO7 X-Received: by 10.180.21.169 with SMTP id w9mr19213973wie.73.1440678612546; Thu, 27 Aug 2015 05:30:12 -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 eu2sm3418001wic.8.2015.08.27.05.30.09 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 27 Aug 2015 05:30:11 -0700 (PDT) From: Peter Griffin To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, maxime.coquelin@st.com, srinivas.kandagatla@gmail.com, patrice.chotard@st.com, mchehab@osg.samsung.com Cc: peter.griffin@linaro.org, lee.jones@linaro.org, devicetree@vger.kernel.org, linux-media@vger.kernel.org Subject: [PATCH v2 1/5] ARM: DT: STi: stihxxx-b2120: Add pulse-width properties to ssc2 & ssc3 Date: Thu, 27 Aug 2015 13:29:31 +0100 Message-Id: <1440678575-21646-2-git-send-email-peter.griffin@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1440678575-21646-1-git-send-email-peter.griffin@linaro.org> References: <1440678575-21646-1-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: 2015.8.27.122116 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 {