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 BAB0FC71155 for ; Fri, 20 Jun 2025 07:55:33 +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:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date: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=tD7HrBct3iPXCOCg6GBhxFLmNa6T2PdVjBcEySVUgIc=; b=hNMf4BuiCybLrjSn0w3BiiypPl qWAw1F859pvqntjfU5z3oVrWcFJFv2qj97FqH4I4TsOnyodl8GLx7XDXzfCxY5knn6Sd2518GsX+T 47IdFPkNqwX4APF9VobTp4PIe+iAOxyyhTM4fYYTcOYPtwRPC1/bbqh4Qkoc2XqdB1L6qhxS3fFlc kAlR7IeDHnUvoG4dBJxNLzOA1AP8aWt2BIyXBH2YKvqCp1N5nwYZdfaQLmPz/EoXgdh2/dGvHt5fS PxK2bS7nHKu5z8MjLi4sGotAR9KJrARjOtPqUPU2wyxLdGSDC34MFMbkyqiBmMCi0YOuLYSc5ging 2gS7s9jg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uSWaq-0000000EzBp-3FsY; Fri, 20 Jun 2025 07:55:24 +0000 Received: from tor.source.kernel.org ([172.105.4.254]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uSWYc-0000000Eymz-11CN for linux-arm-kernel@lists.infradead.org; Fri, 20 Jun 2025 07:53:06 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id A6A31617EE; Fri, 20 Jun 2025 07:53:05 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C3CF9C4CEED; Fri, 20 Jun 2025 07:53:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1750405985; bh=4m726/Z0me12Me+hnL7MnK4ol0AFM26gZ8tqBJ8UZHU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=S0qlmAo65bRWeUlFDIeElHSlh4l/ayGsWEX6JUZ093r4Q3ZYb3XIAq/+ZDziGhFFt hyLFw4gzwjY9GE3pJfOwRv8ij+j06A66cK+JfskFOgnzLK8eU6C0dB0tKXlxgoC3+o 6ijUUtjhR/Eo9cyOuFWOaDBAMApb4gw4AaJJwig1KS2lyUVcdskkSRvy6xspBO2sJA 8U9G1PuY8NpEZNiaZF88uW2H0W+AUGtvzd/SdWP7iHbY3kAyfemQsZRhKPeyOKbgSG h5I+fPW/3iyG3d9DhqIh/AisUvv/tCr/d2L9r6seTOjp21aQw70mmRcvqfa5aHU+ur SQ7p6sNFTLOAA== Date: Fri, 20 Jun 2025 09:53:02 +0200 From: Krzysztof Kozlowski To: Richard Zhu Cc: frank.li@nxp.com, l.stach@pengutronix.de, lpieralisi@kernel.org, kwilczynski@kernel.org, mani@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, bhelgaas@google.com, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, imx@lists.linux.dev, linux-kernel@vger.kernel.org Subject: Re: [PATCH v3 1/2] dt-binding: pci-imx6: Add external reference clock mode support Message-ID: <20250620-honored-versed-donkey-6d7ef4@kuoka> References: <20250620031350.674442-1-hongxing.zhu@nxp.com> <20250620031350.674442-2-hongxing.zhu@nxp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20250620031350.674442-2-hongxing.zhu@nxp.com> X-BeenThere: linux-arm-kernel@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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, Jun 20, 2025 at 11:13:49AM GMT, Richard Zhu wrote: > On i.MX, the PCIe reference clock might come from either internal > system PLL or external clock source. > Add the external reference clock source for reference clock. > > Signed-off-by: Richard Zhu > Reviewed-by: Frank Li > --- > Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml | 7 ++++++- > 1 file changed, 6 insertions(+), 1 deletion(-) > > diff --git a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml > index ca5f2970f217..c472a5daae6e 100644 > --- a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml > +++ b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml > @@ -219,7 +219,12 @@ allOf: > - const: pcie_bus > - const: pcie_phy > - const: pcie_aux > - - const: ref > + - description: PCIe reference clock. > + oneOf: > + - description: The controller might be configured clocking > + coming in from either an internal system PLL or an > + external clock source. > + enum: [ref, gio] Internal like within PCIe or coming from other SoC block? What does "gio" mean? Best regards, Krzysztof