From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 02C0C3D813C; Tue, 26 May 2026 09:45:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779788746; cv=none; b=P8edGgcerTeXicHTpeRhblOs7iXNNfuW06OushBSj9tXUXxaHnl4y8awAzuMYmRwMpPH0RnKcpWtPP7wPqTc3k4Pv7kcFdC3yTqZKt9wH9GRNl9neCS6O3MCGYLtHTWxS2moGKByQh52ttDr4YxHV8jPXZJbxtvR2Wedkr4FAC0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779788746; c=relaxed/simple; bh=O/AOCdYrov9JFVhS4ODPjm9Y5GCSlcQ3YEYM47oWlUM=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=A+SpztbCE6L3fNqSeUxEVQqKypUrqmszr5Eyf2Nh7xiVioplpygUkoT7wSZfIbWMY6PW+8SuFDNQ4DBu74viqgPvTqIVEKX6PtSBd6lPh8eqzFcElqTcok47z1NSucq73Hu3tusQ0GUNEGBlunrq4uI9nhCPwDesCO74eZykHLo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Rk81zGUk; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Rk81zGUk" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4F4401F000E9; Tue, 26 May 2026 09:45:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1779788744; bh=DmT8JLB9pGAh4ytxXWB1YpDnwTGUnwpS66cewTzqsCM=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=Rk81zGUk071pSgaBGiFqYOZuI8DKEzD2+G4dyIEiMGr5XQ2JfsXvytpvdH6dBjii0 9zbi6Gfk2aqk+/VY7Pc4X4XjTwo1I/fUGDiREP+921bea0KHfofeBDtjLxxaVrI8vz e1pKJYKzkKya80+w2zalkpHp6WJ6iLEEfQ6B3gJobLN44/QihycV8uhJ1wBxqEZ56S alh7bvj0v/iawoyKPDAPlzaahF6lfbh9EdEGc5TZvbfG+PksPSXNrBtu+xkeMqwaK8 C5G4/P5O3fnJhB/uCNOEOSzx8cYTx41ZcAQhohi+RNsCaXhst9s6Unxle8EyCboYjP DWC9l7wd/mvRw== Message-ID: <8dcf50ee-94b7-4b27-895d-2448eb772c08@kernel.org> Date: Tue, 26 May 2026 12:45:38 +0300 Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v6 01/18] dmaengine: sh: rz-dmac: Move interrupt request after everything is set up To: Biju Das , "vkoul@kernel.org" , "Frank.Li@kernel.org" , "lgirdwood@gmail.com" , "broonie@kernel.org" , "perex@perex.cz" , "tiwai@suse.com" , Prabhakar Mahadev Lad , "p.zabel@pengutronix.de" , "geert+renesas@glider.be" , Kuninori Morimoto , Long Luu Cc: "Claudiu.Beznea" , "dmaengine@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-sound@vger.kernel.org" , "linux-renesas-soc@vger.kernel.org" , Claudiu Beznea , "stable@vger.kernel.org" , Frank Li , John Madieu References: <20260526084710.3491480-1-claudiu.beznea@kernel.org> <20260526084710.3491480-2-claudiu.beznea@kernel.org> Content-Language: en-US From: Claudiu Beznea In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 5/26/26 11:54, Biju Das wrote: > Hi Claudiu, > >> -----Original Message----- >> From: Claudiu Beznea >> Sent: 26 May 2026 09:47 >> Subject: [PATCH v6 01/18] dmaengine: sh: rz-dmac: Move interrupt request after everything is set up >> >> From: Claudiu Beznea >> >> Once the interrupt is requested, the interrupt handler may run immediately. > > Do you mean spurious interrupt? > > After DMA driver probe only, consumer device can access the DMA handle > right? or am I missing something here? In theory there could be pending interrupts not yet served (e.g. due to the previous usage of the controller, HW behavior, etc). Those could trigger the execution of the IRQ handler once the interrupt is requested. -- Thank you, Claudiu