From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EFFA2C6FD1F for ; Wed, 22 Mar 2023 16:08:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=/jPS2M/Gp6VwiZjCiYewnaHfX5XYpYAxcgpv752ZBhA=; b=uiG/nZJPQzEJxG MNgMhhUKLZsZJdnIuzWk7ZNDanIPKomKaK39vXVD0GXsvOqar+X6FHPPip6cPyF00zSZ0krDx/VEu 3RosLUzsmRn9jkfgedW5wStUiby2S+lpvJYUSXm6EyNwpNEsylSh7frr6baLefC4Wt3SCbcwDnhPL qp8dg9vNjSfeLuTvr/kjfjepoRwFn7YkBmQarAIUpQFvsMTcUvmNIEhb/z4G0l+NXz0KvtMM8RfRp I3YIsha8iaXBlG87V+ihsZH8KZK4FNMvVY612KlrX92CAUxJkC64KmYBH9KvF1n1A/IWg9r8Srrxp M0hXtMcAbVUK7/GmRKfA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pf10U-00GbID-0O; Wed, 22 Mar 2023 16:08:10 +0000 Received: from relay11.mail.gandi.net ([217.70.178.231]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pf10P-00GbEA-10; Wed, 22 Mar 2023 16:08:08 +0000 Received: (Authenticated sender: miquel.raynal@bootlin.com) by mail.gandi.net (Postfix) with ESMTPSA id 32DC5100003; Wed, 22 Mar 2023 16:07:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1679501276; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=iMNRn5L+CaeB59tcwag0gxW6LL0loCqp1DLAG5DxHE0=; b=nOP2Odox8fG1yzMRTLe71QAaBJiw3BMhKjlGTyUZgFKn7I27vSjMlNQnzuiIZ9pyt6tHF8 CleOUFiD8hWifzswVuB66uveeMSsHCxTlN+indvbCh5QjRAPyAfOJjajU1GWUtL209E6VL ZrLDlyE6auMsL08EeABhoeLEVaXgFIVns7HCPJNGN81RbqtJl8IO3oiISXqpP+lA1Tz1W/ F6GweoMQ6RVffRlizsqEvjg584YqLFiMTHSNqkyq8iicwJLSjRj1Js13kKQQ5ZAcmuelqi mLsJens0IkEYRjVuqNy+NXw0paHG78albya8Pv92cAM58HC+3cFvSJiQ2V6AqQ== From: Miquel Raynal To: Arseniy Krasnov , Liang Yang , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Neil Armstrong , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Jianxin Pan , Yixun Lan Cc: linux-mtd@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@sberdevices.ru, oxffffaa@gmail.com Subject: Re: [RFC PATCH v1] mtd: rawnand: meson: invalidate cache on polling ECC bit Date: Wed, 22 Mar 2023 17:07:48 +0100 Message-Id: <20230322160748.2232587-1-miquel.raynal@bootlin.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: References: MIME-Version: 1.0 X-linux-mtd-patch-notification: thanks X-linux-mtd-patch-commit: b'e732e39ed9929c05fd219035bc9653ba4100d4fa' X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230322_090805_646396_AC250A69 X-CRM114-Status: UNSURE ( 7.12 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org On Mon, 2023-03-13 at 07:32:44 UTC, Arseniy Krasnov wrote: > 'info_buf' memory is cached and driver polls ECC bit in it. This bit > is set by the NAND controller. If 'usleep_range()' returns before device > sets this bit, 'info_buf' will be cached and driver won't see update of > this bit and will loop forever. > > Fixes: 8fae856c5350 ("mtd: rawnand: meson: add support for Amlogic NAND flash controller") > Signed-off-by: Arseniy Krasnov > Reviewed-by: Neil Armstrong Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git mtd/fixes, thanks. Miquel _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic