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Sat, 03 Oct 2026 22:02:29 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mailbox.org; s=mail20150812; t=1791057749; 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: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=S2hx8mSXufXQMLy/HU5AvSxlylA0cdAKQG4bp36dpPg=; b=J5/t7RuViP01ibo2BwbZjgiQDNaCxQo1U/tJvOpsyujDaGeP9//9q3dXe1EaSAt04mvZVb yr0ZD49gCaHgGOfe4D0BNtVDSqVUp3B8Ao0DHv14yuAU7o4CdjvkcC/9Nkd+m19ZaWE6j1 0VW3f7hEgzLakSzM1xWrzIW97+qXxg9UHtsYyKY2EvEmlWI4P1rWHomSOEM9u1bJqRyE8N ujntCoQcq9nsp8S3rGz8r5zAeJVrMWUZPQAKp7sSMcX5DuCN43AVd5wXZ7Drx37w78Ny+k 98gtR/ERzVjWIQWDRr7OzDcBAOx2ZkS9GexzD2ns58SzS5zDgiidGBVxwBW/Ag== Authentication-Results: outgoing_mbo_mout; dkim=pass header.d=mailbox.org header.s=mail20150812 header.b=H9E0L8Fx; spf=pass (outgoing_mbo_mout: domain of marek.vasut@mailbox.org designates 2001:67c:2050:b231:465::102 as permitted sender) smtp.mailfrom=marek.vasut@mailbox.org Message-ID: <8e00c574-fe32-470c-b5fe-1569f7dda957@mailbox.org> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mailbox.org; s=mail20150812; t=1791057747; 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: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=S2hx8mSXufXQMLy/HU5AvSxlylA0cdAKQG4bp36dpPg=; b=H9E0L8FxO54IZBV00OULKB9R6tAOTmS1GVZsRxtRG1RGa/0LBShrrvhYqg86MawwpXv6Zp xzFzMxcJs226rHseQcMk39rnUtztziV9J2MRUsXc55VDrsbfk7gzuhwkEJvb3skIqhMb1r ZiJcskigfybxNhyFW61X1zkmJhXgt4pZeBSYfoEkKzpPstQhlCQsMCydM1IE3ldAANzhry S1czqPMhzxm39DhbGWnpR0E+ftvkOnkYpSSBYQVyWzbHe2WRsO7cQso7sS/xxvdoyAI8cf 5ILi/nRXpxYxYCewIFeEFutRvGtnFTEYXD5Wnu5nYfqBdTb3pjRBtgBTK8DErQ== Date: Sat, 3 Oct 2026 22:02:22 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 04/15] PCI: dwc: Export dw_handle_msi_irq() To: Koichiro Den , Marek Vasut , Yoshihiro Shimoda , Lorenzo Pieralisi , =?UTF-8?Q?Krzysztof_Wilczy=C5=84ski?= , Manivannan Sadhasivam , Rob Herring , Bjorn Helgaas , Krzysztof Kozlowski , Conor Dooley , Geert Uytterhoeven , Magnus Damm , Jingoo Han Cc: Philipp Zabel , Frank Li , Niklas Cassel , Wilfred Mallawa , Serge Semin , linux-pci@vger.kernel.org, linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260928165230.3397664-1-den@valinux.co.jp> <20260928165230.3397664-5-den@valinux.co.jp> Content-Language: en-US From: Marek Vasut In-Reply-To: <20260928165230.3397664-5-den@valinux.co.jp> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-MBO-RS-META: 1gs5oxn8z5t5czzh5jxh8xoysekjs6pt X-MBO-RS-ID: aef3102c2ba403b93b7 X-Rspamd-Queue-Id: 4hxxQF1jNGzMlGw On 9/28/26 6:52 PM, Koichiro Den wrote: > Not every platform brings the iMSI-RX interrupt out as a dedicated > line. On spear13xx and keembay it is a status bit in the SoC wrapper's > interrupt register that the glue driver has to check and clear, and on > dra7xx it shares the line with other sources the glue driver has to > demultiplex. These drivers set msi_irq[0] to -ENODEV so the core does > not install its chained handler, and service the MSIs from a handler of > their own. spear13xx and keembay call dw_handle_msi_irq() for that. > Both are built-in, so the function was never exported. dra7xx can be a > module and has an MSI loop of its own. > > Export the function so that modular glue drivers can use it as well. > The R-Car Gen4 driver, where both situations apply, is the first user. > > Signed-off-by: Koichiro Den Reviewed-by: Marek Vasut