From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 E88081DDC2B; Tue, 9 Sep 2025 00:47:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757378868; cv=none; b=gFX0ZjdTcFeTiB7wJO+FvPa8oPu6i1Qo2KxTeUC7Cz2PB4QF8ZY1omhCeto2fa9uzhirRySXTf9wISzdQurfw3PNf9PAe8xx9eWCwtRx7umqeZzK3cRSKynnwLzMeVCUlM+o/C9x5UGcFcNmfTlOZaSA/EyerePRQc7OXGZhR30= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757378868; c=relaxed/simple; bh=zy06io68iOVZYCgiZwnvNmFkyT+ulKg9fSvGqjcKcN8=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=tJ96WGyGEQks4ygxgIQCo8qyYocopK0WbXMQ/vwMdLZp1F549EWwGxaFEWDxIrhUf5o7WwCy1Nzsn06fsT5vJfRO4/zxNpDOhsNys62Uvwpt5KMEsKRerSDLufFCXuhUt5TTAGTgwQFF4wg3BmxIruB+ec5HrfTpWnEWEfIlriU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=lFvbb6Hn; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="lFvbb6Hn" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 692AFC4CEF1; Tue, 9 Sep 2025 00:47:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1757378867; bh=zy06io68iOVZYCgiZwnvNmFkyT+ulKg9fSvGqjcKcN8=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=lFvbb6HnpVHha2QYxeYIX0bkE+3dooJdy12p2Y1WtCqf+8KJ2KHtE8W/upyI42rJq W/bR3/vsaW/Yk6P2f5oIysRasonAGlc4I9+H8t0TDGRUpXjqdhrZIXpv4CAcE9/fDe I/x9x+Sam2B7yFFYLzM0HLaPcTnawzik3KVS05svRPTW26kcYZU1V0zZ414hoytHqW iSKhYPWLpHvp2ZHT/0mlk/0I5lEfE1y5myFH79/klACkDgPJIiyL3Ftb8lm7NRNK1a RRcmX/+pgIEtlIzsfGQOsSfAHeFJ4tdTWzI+rr0N/sV9gnAt1sCOm1i8LQAowH65eA +20GqpgsNGG4w== Date: Mon, 8 Sep 2025 19:47:46 -0500 From: "Rob Herring (Arm)" To: Yao Zi Cc: Bjorn Helgaas , Shawn Lin , Conor Dooley , Simon Xue , linux-rockchip@lists.infradead.org, Krzysztof =?utf-8?Q?Wilczy=C5=84ski?= , Chukun Pan , Lorenzo Pieralisi , linux-arm-kernel@lists.infradead.org, Manivannan Sadhasivam , Jonas Karlman , devicetree@vger.kernel.org, Krzysztof Kozlowski , Heiko Stuebner , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/3] dt-bindings: PCI: dwc: rockchip: Add RK3528 variant Message-ID: <175737886558.2322312.14140565713141816216.robh@kernel.org> References: <20250906135246.19398-1-ziyao@disroot.org> <20250906135246.19398-2-ziyao@disroot.org> Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250906135246.19398-2-ziyao@disroot.org> On Sat, 06 Sep 2025 13:52:44 +0000, Yao Zi wrote: > RK3528 ships a PCIe Gen2x1 controller that operates in RC mode only. > Since the SoC has no separate MSI controller, the one integrated in the > DWC PCIe IP must be used, and thus its interrupt scheme is similar to > variants found in RK3562 and RK3576. > > Older BSP code claimed its integrated MSI controller supports only 8 > MSIs[1], but this has been changed in newer BSP[2] and testing proves > the controller works correctly with more than 8 MSIs allocated, > suggesting the controller should be compatible with the RK3568 variant. > Let's document its compatible string. > > Link: https://github.com/rockchip-linux/kernel/blob/792a7d4273a5/drivers/pci/controller/dwc/pcie-dw-rockchip.c#L1610-L1613 # [1] > Link: https://github.com/rockchip-linux/kernel/blob/1ba51b059f25/drivers/pci/controller/dwc/pcie-dw-rockchip.c#L904-L906 # [2] > Signed-off-by: Yao Zi > --- > Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml | 3 +++ > 1 file changed, 3 insertions(+) > Acked-by: Rob Herring (Arm)