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 861BCC7EE24 for ; Fri, 2 Jun 2023 10:13:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type:MIME-Version: Message-ID:Date:References:In-Reply-To:Subject:Cc:To:From:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=M7GzoTaph3PJwwLQgPyik4Eh+bbnZRkPzskpAeL6aSA=; b=o2QhJ5kYNdYNqHXdK2X1Ewgz6d LmORq8xlrLTp0+eXcoPLY1IQyKg4CsGaaXkHfgmcOt6EZFaPDYHsPpg17B8foKAqBK7ihnLeGtEDZ NC8PKqXG66dQE7BqFZ2Viry8UQhIvPHBU8G9epVRKY9SE2vmd7V9hNsgVuhfIQFhEkWUt0NOMSp73 kCPvehXIHETMikU7aaVApX1xPMW6nUIStMoADqErGT/cE8jnQGXJySy1ux6Kcgr8gbpdZZnQH87t2 uVC7fr8bKNx7vacmngZi1Aj674fO8gSfLJjYW13WxejoUdvOKfZSDduA5DcduhW4otAhlhnArMe4d bcjgWLMg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1q51mu-006U5g-1O; Fri, 02 Jun 2023 10:13:40 +0000 Received: from galois.linutronix.de ([2a0a:51c0:0:12e:550::1]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1q51ms-006U3w-0x for linux-mediatek@lists.infradead.org; Fri, 02 Jun 2023 10:13:39 +0000 From: John Ogness DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1685700812; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=M7GzoTaph3PJwwLQgPyik4Eh+bbnZRkPzskpAeL6aSA=; b=GG3G5mL0bgKlxf6U+FJBDL6Q1lUEIKeL4TxsOPB4fSfBkk/fcfVyWWUUtHTLjysXvihtjX dg/Seh5PS7j7QK8kubfn/HKaB7/ZGg32l+FqXnwtp/F2PYanop+GXVgwZaSB6EkgPisrPn ggoMEaq4XMMOL2r2rylrdWLpFiOqzEBJD+mv+6BjNvwaq7B/HZguez5Q5EooMkyH84lBZv 14tq4SpYgp3gpUBXRKME+aWk0wr+c912N7Vn4rkCZf0UoVV8TlTC8NMG7Z6UCJViu5Ts2o knwkQycTe/KoOm1C4W6hDbK2YxTF4GgwTOyOwQ4sVhhYA2FZ8QmEQGHOl0OasA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1685700812; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=M7GzoTaph3PJwwLQgPyik4Eh+bbnZRkPzskpAeL6aSA=; b=mZtG4RT88sue4AZKYDqVM5VkrPwnXz/sPSOFAK7alYyAi80FpCRuwryq9FZ70KRmumsdmx VsglgIllqcsaEDDA== To: Chen-Yu Tsai , Tony Lindgren Cc: Greg Kroah-Hartman , Jiri Slaby , Andy Shevchenko , Dhruva Gole , Ilpo =?utf-8?Q?J=C3=A4rvinen?= , Johan Hovold , Sebastian Andrzej Siewior , Vignesh Raghavendra , linux-omap@vger.kernel.org, Andy Shevchenko , linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, =?utf-8?Q?N=C3=ADcolas_F=2E_R=2E_A=2E_Prado?= , AngeloGioacchino Del Regno , linux-mediatek@lists.infradead.org Subject: Re: [PATCH v12 1/1] serial: core: Start managing serial controllers to enable runtime PM In-Reply-To: <20230602083335.GA181647@google.com> References: <20230525113034.46880-1-tony@atomide.com> <20230602083335.GA181647@google.com> Date: Fri, 02 Jun 2023 12:19:28 +0206 Message-ID: <87a5xii33r.fsf@jogness.linutronix.de> MIME-Version: 1.0 Content-Type: text/plain X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230602_031338_475103_7B4AA399 X-CRM114-Status: UNSURE ( 5.99 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org On 2023-06-02, Chen-Yu Tsai wrote: > This patch, in linux-next since 20230601, unfortunately breaks > MediaTek based Chromebooks. The kernel hangs during the probe of the > serial ports, which use the 8250_mtk driver. Are you sure it is this patch? Have you bisected it? Unfortunately next-20230601 also brought in a series that added spinlocking to the 8250 driver. That may be the issue here instead. For 8250 bug reports we really need to bisection. John Ogness