From patchwork Wed Jun 24 15:10:59 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Griffin X-Patchwork-Id: 30357 Received: from mail.tu-berlin.de ([130.149.7.33]) by www.linuxtv.org with esmtp (Exim 4.72) (envelope-from ) id 1Z7mKy-0000Na-UQ; Wed, 24 Jun 2015 17:11:40 +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 1Z7mKu-0000oJ-8M; Wed, 24 Jun 2015 17:11:39 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753510AbbFXPLc (ORCPT + 1 other); Wed, 24 Jun 2015 11:11:32 -0400 Received: from mail-wg0-f47.google.com ([74.125.82.47]:35638 "EHLO mail-wg0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752927AbbFXPLa (ORCPT ); Wed, 24 Jun 2015 11:11:30 -0400 Received: by wgbhy7 with SMTP id hy7so39012504wgb.2 for ; Wed, 24 Jun 2015 08:11:28 -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=ag14qjFQkMkaUGBSbKfgGjYiJo8tnoRAeFTzNe25Fx0=; b=kJC8CrQeaNuPRkA6GfLUCzgq81G/1MnAlf29FOH9vhonBjOA5/DDJVkf/U7XK8aPx4 Blvmb+fEA4fGxo1T3q21diH2skmffUd5n8Dr0NtCZghOESjz/hjJbPzQC33RZZ5xLEOD C8r3S8OYyzyI4fzZOcGSJJkw09E46T5RjnssoBcZ/B8DkfxjceMDymb3yv++jdqacyFU PkR7zsqL/xFj/IZUD0gCwHQJoaA4CyALvkJoViTIvpIQW8NU3VqCMVqFNhM9tXjo/aJw GEaHv0qCYArA4VEDx03k3qZu9xGzIYTv+AbF+42pxwFvGE9jVp4JUHcfNNNZjaQcYX0w L/gw== X-Gm-Message-State: ALoCoQkMWwMAlela3N5ezVvWf/eG6FVTuYNAx6F99bT7wYdpnlzfbFb5Ztkhd+8XpUX4UtJjs+dA X-Received: by 10.180.86.234 with SMTP id s10mr5726962wiz.50.1435158688217; Wed, 24 Jun 2015 08:11:28 -0700 (PDT) Received: from localhost.localdomain (cpc14-aztw22-2-0-cust189.18-1.cable.virginm.net. [82.45.1.190]) by mx.google.com with ESMTPSA id ju2sm3018019wid.12.2015.06.24.08.11.26 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 24 Jun 2015 08:11:27 -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, hugues.fruchet@st.com, linux-media@vger.kernel.org, devicetree@vger.kernel.org Subject: [PATCH 01/12] ARM: DT: STi: stihxxx-b2120: Add pulse-width properties to ssc2 & ssc3 Date: Wed, 24 Jun 2015 16:10:59 +0100 Message-Id: <1435158670-7195-2-git-send-email-peter.griffin@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1435158670-7195-1-git-send-email-peter.griffin@linaro.org> References: <1435158670-7195-1-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: 2015.6.24.150318 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, 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, __SUBJ_ALPHA_END 0, __TO_MALFORMED_2 0, __TO_NO_NAME 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 --- 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 c1d8590..1f27589 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 {