From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx1.tq-group.com (mx1.tq-group.com [93.104.207.81]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5CE963A8D0 for ; Wed, 15 May 2024 06:12:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=93.104.207.81 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715753574; cv=none; b=AYriH7zjJtoIuua+03xAfPU1YK3xxjV2QHPT3E40JOHkbv5LgYKch28jyCB08mDLpcuQ5eh0NmlClQ0eZtzOdbw+RLw23py7UrXY5DiwhOjsIEWUxB2UxlsZnncMbm9UwEeUh2J3rMGyhQUpn9/WDCfpV82h2SdhADTF9zZMLNs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715753574; c=relaxed/simple; bh=ST1KBgIBdQUGMWs9K1MnA4oRBE3vKwC0vJ3GkqMiD2s=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=q77Ixgyt1oE+THivi7Jyf8GhbEEJQdxpo5B1mMW4JLNcDY3ZFOl3dDuIpR/k1phLafSxc/5wyTafF1zyP8kvlabDbJyeAFLGhvxpk6qggyBmUnOCB/xNyk+QKf7R30juHQb9G16xk4rq7WRo6stIhqqMXpxn9JRYf3Tcf5gqRg4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=ew.tq-group.com; spf=pass smtp.mailfrom=ew.tq-group.com; dkim=pass (2048-bit key) header.d=tq-group.com header.i=@tq-group.com header.b=PVGn/FMn; dkim=fail (0-bit key) header.d=ew.tq-group.com header.i=@ew.tq-group.com header.b=r4QALbQT reason="key not found in DNS"; arc=none smtp.client-ip=93.104.207.81 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=ew.tq-group.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ew.tq-group.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=tq-group.com header.i=@tq-group.com header.b="PVGn/FMn"; dkim=fail reason="key not found in DNS" (0-bit key) header.d=ew.tq-group.com header.i=@ew.tq-group.com header.b="r4QALbQT" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tq-group.com; i=@tq-group.com; q=dns/txt; s=key1; t=1715753570; x=1747289570; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Ni1BtX8uUfNH+eqIsiz5T/zzcUFH/m6Iqk/eL5FxXCw=; b=PVGn/FMnK7cRefZm4PpoeLHXoz+mOnEWb5KSBwq0KCbhmw2Z4U5wSnD0 yjVtJiZB4auAk1S6StbLcnM+hBjRJu7rIW7Ld2UvoUg3Bjfi91dOVN3zs mljra5ycDyRjRXzlYxi5lKhZA+hcobtmIZSd25NHB4lym/BBBZQvaa6Ze mr1rpqWDnXb+uqhKvf9H9yyY0YmAm8rOGT0YkceahSBFkbUGSA+Zn7Yyu yFfE8bFp6e3dcYz2eoVhapU63CHbep9Qk8yqg3HJarxG7EkP7VXBZAQxN TUNR4fe3Hr1BbtrblUOlEm3ddw7G1bNP4A8mHSfLshr1GZql8toza4U/G w==; X-CSE-ConnectionGUID: sSsNmdUXTuqGs3G2OXkj4w== X-CSE-MsgGUID: yzGRMvqBQUqlUMiIv32CiQ== X-IronPort-AV: E=Sophos;i="6.08,160,1712613600"; d="scan'208";a="36904601" Received: from vmailcow01.tq-net.de ([10.150.86.48]) by mx1.tq-group.com with ESMTP; 15 May 2024 08:11:37 +0200 Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id 2B3721712BF; Wed, 15 May 2024 08:11:30 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ew.tq-group.com; s=dkim; t=1715753493; h=from:subject:date:message-id:to:cc:mime-version:content-type: content-transfer-encoding:in-reply-to:references; bh=Ni1BtX8uUfNH+eqIsiz5T/zzcUFH/m6Iqk/eL5FxXCw=; b=r4QALbQTiUzJGjSHwsQrHvJLIVFxpJ/jBUeoqAx8k8n9WYRaSOx6shLe55Yc0+1Dr8R6tG VvTStgp8Vvsj0SgMHG+e+DlkOY+hUHUUEBZTZT9PYKBCgBiRU7vFEzCukZHJ+Bfb4wpQEf /4V2rVBb//cd+sTH6qela5tc6Erw0ertc3SfKYXJy4/MTOUCPnYmysw72xn0lRGCKOT3X7 UexgKLtI3FMJSkIdJE8j6T43czpFD4ZLfVBxyIt4JQJiu7WTuH6XBBSA6cvpmf1c7dGIIS BYuDzbmPn1TdToS58RT1lrenH7Ccwi3qqRmTh30o8mFvYVI6QnleX5R08asptA== From: Alexander Stein To: Shengjiu Wang , Adam Ford Cc: ulf.hansson@linaro.org, heiko@sntech.de, u.kleine-koenig@pengutronix.de, geert+renesas@glider.be, rafael@kernel.org, linux-pm@vger.kernel.org, abelvesa@kernel.org, peng.fan@nxp.com, mturquette@baylibre.com, sboyd@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, imx@lists.linux.dev, shengjiu.wang@gmail.com, frank.li@nxp.com, mkl@pengutronix.de, linus.walleij@linaro.org, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v3] pmdomain: imx: gpcv2: Add delay after power up handshake Date: Wed, 15 May 2024 08:11:35 +0200 Message-ID: <9618306.DvuYhMxLoT@steina-w> Organization: TQ-Systems GmbH In-Reply-To: References: <1715396125-3724-1-git-send-email-shengjiu.wang@nxp.com> Precedence: bulk X-Mailing-List: imx@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" X-Last-TLS-Session-Version: TLSv1.3 Hi, Am Mittwoch, 15. Mai 2024, 00:08:21 CEST schrieb Adam Ford: > On Fri, May 10, 2024 at 10:15=E2=80=AFPM Shengjiu Wang wrote: > > > > AudioMix BLK-CTRL on i.MX8MP encountered an accessing register issue > > after power up. > > > > [ 2.181035] Kernel panic - not syncing: Asynchronous SError Interrupt > > [ 2.181038] CPU: 1 PID: 48 Comm: kworker/u16:2 Not tainted 6.9.0-rc5= =2Dnext-20240424-00003-g21cec88845c6 #171 > > [ 2.181047] Hardware name: NXP i.MX8MPlus EVK board (DT) > > [ 2.181050] Workqueue: events_unbound deferred_probe_work_func > > [ 2.181064] Call trace: > > [...] > > [ 2.181142] arm64_serror_panic+0x6c/0x78 > > [ 2.181149] do_serror+0x3c/0x70 > > [ 2.181157] el1h_64_error_handler+0x30/0x48 > > [ 2.181164] el1h_64_error+0x64/0x68 > > [ 2.181171] clk_imx8mp_audiomix_runtime_resume+0x34/0x44 > > [ 2.181183] __genpd_runtime_resume+0x30/0x80 > > [ 2.181195] genpd_runtime_resume+0x110/0x244 > > [ 2.181205] __rpm_callback+0x48/0x1d8 > > [ 2.181213] rpm_callback+0x68/0x74 > > [ 2.181224] rpm_resume+0x468/0x6c0 > > [ 2.181234] __pm_runtime_resume+0x50/0x94 > > [ 2.181243] pm_runtime_get_suppliers+0x60/0x8c > > [ 2.181258] __driver_probe_device+0x48/0x12c > > [ 2.181268] driver_probe_device+0xd8/0x15c > > [ 2.181278] __device_attach_driver+0xb8/0x134 > > [ 2.181290] bus_for_each_drv+0x84/0xe0 > > [ 2.181302] __device_attach+0x9c/0x188 > > [ 2.181312] device_initial_probe+0x14/0x20 > > [ 2.181323] bus_probe_device+0xac/0xb0 > > [ 2.181334] deferred_probe_work_func+0x88/0xc0 > > [ 2.181344] process_one_work+0x150/0x290 > > [ 2.181357] worker_thread+0x2f8/0x408 > > [ 2.181370] kthread+0x110/0x114 > > [ 2.181381] ret_from_fork+0x10/0x20 > > [ 2.181391] SMP: stopping secondary CPUs > > >=20 > The imx8mp-beacon board suffers from this as well, and I can confirm > the patch also fixes it. It might be a coincidence, but the etnaviv > NPU also enumerates more reliably now too. I had a similar local hack/workaround for NPU startup. This patch address both issues. Tested-by: Alexander Stein =2D-=20 TQ-Systems GmbH | M=C3=BChlstra=C3=9Fe 2, Gut Delling | 82229 Seefeld, Germ= any Amtsgericht M=C3=BCnchen, HRB 105018 Gesch=C3=A4ftsf=C3=BChrer: Detlef Schneider, R=C3=BCdiger Stahl, Stefan Sch= neider http://www.tq-group.com/