From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752870AbcBOLZb (ORCPT ); Mon, 15 Feb 2016 06:25:31 -0500 Received: from mail-db3on0082.outbound.protection.outlook.com ([157.55.234.82]:37968 "EHLO emea01-db3-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751094AbcBOLZ1 (ORCPT ); Mon, 15 Feb 2016 06:25:27 -0500 Authentication-Results: nxp.com; dkim=none (message not signed) header.d=none;nxp.com; dmarc=none action=none header.from=nextfour.com; To: LKML , , From: =?UTF-8?Q?Mika_Penttil=c3=a4?= Subject: [REGRESSION, bisected] 4.5rc4 sound fsl-soc X-Enigmail-Draft-Status: N1110 Message-ID: <56C1B59F.4040204@nextfour.com> Date: Mon, 15 Feb 2016 13:25:19 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.5.1 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Originating-IP: [194.157.170.34] X-ClientProxiedBy: AM2PR03CA0016.eurprd03.prod.outlook.com (25.160.207.26) To HE1PR07MB0907.eurprd07.prod.outlook.com (25.162.26.14) X-Microsoft-Exchange-Diagnostics: 1;HE1PR07MB0907;2:7EXnnJs3B6HPIrNtp/ggJfRdkpqMHDL7VzVjIlQIo30v32W77w19t/Kij5jpSu+Ac7JFpqIGzZlLJlwdMKfLyXSixKdfSr15SP4gU/porzVuugKWC8z93n9idp8qyzml+iQZAhN2X8x2nQTnLbFYIA==;3:T4+UeSxjzzhGBH7+6yUJ/lyST/xwT8s44a4cMVjD6X30Oyux9zWbNdBEx6y630WQI8j6HdyJy07aUTPeP7Ikscd6MCjHQXbbq7hk22TQfcPukViHJJBW/Eyi8U3ZQKj+;25:b3ApVQ3/6D1qVU3fVGcuBvbLlB3iRT89sNtk3PVNaSUcpOcSLNt5GvsW9kdJUx0FCG0UxXNzVKtJXqLwjp/vhixQ8GbZlRrigsgNONl/v2wKIL0Yh4H1Sj3odowlg5rI5PBwzbMbCfCg583C64VbHkn4bdueko+x7hXYy/w28TCjWvMmFEbpw9YopMAlPFMbGlGz9XGk+5QUGNE3pfQlK9xRnquIwskG9kNF3u5ovWYKRUPztILKiarqcwZdDu7I8DG+IL7JDA5BURlU/LwfRvUaKBugs+AJ8UJ4l8fgJ1iCvLz03eHAx8khV327Pqvd X-Microsoft-Antispam: UriScan:;BCL:0;PCL:0;RULEID:;SRVR:HE1PR07MB0907; 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Szmigiero Date: Mon Jan 18 20:07:44 2016 +0100 ASoC: fsl_ssi: remove explicit register defaults There is no guarantee that on fsl_ssi module load SSI registers will have their power-on-reset values. In fact, if the driver is reloaded the values in registers will be whatever they were set to previously. However, the cache needs to be fully populated at probe time to avoid non-atomic allocations during register access. Special case here is imx21-class SSI, since according to datasheet it don't have SACC{ST,EN,DIS} regs. This fixes hard lockup on fsl_ssi module reload, at least in AC'97 mode. Fixes: 05cf237972fe ("ASoC: fsl_ssi: Add driver suspend and resume to support MEGA Fast") Signed-off-by: Maciej S. Szmigiero Tested-by: Fabio Estevam Signed-off-by: Mark Brown causes regmap init failure when loading the sgtl5000 codec on imx6q, and leads to no audio. With the mentioned patch reverted sound works ok. --Mika