From patchwork Fri Nov 4 13:10:43 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marek Vasut X-Patchwork-Id: 13031739 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 B6441C4332F for ; Fri, 4 Nov 2022 13:12:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=mRieJTFH2dsP3N2Eu6vEUcOFgz1GFNOaYipFM2BqFGs=; b=F2RC9QmYbc/1SH OgVRq2nF004PPAx3Gl5ps1QmrxO82t/4IO1BtmCugUxbPl4lWP7Pygg2yrcJ6v9Cnpj+jV5dqRMoB NneUfgOEs8X0NHXC1KmkkAT5kwsXn4QPb0OW1YDiQmUNHKC40Em7khiPhFNyXDvN30OLq3NXBCCDc OYVOhCVKzWby9/ZVJLgtNOFqLkLDE6PpfZ5gUDxA5F2d+jEZ2Sa3qn+6O0/UL8To7+1AP1HbRZc6s /um80R/Oz8ZirF2yUN9y5nCAl6Y3/K5JJYaqC7RN8AYUu1sgwGfdJfavutB8T8bWXxSlgffjEANXp hO8dynf3uQbLMxAIk9aw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oqwTW-003aAU-FO; Fri, 04 Nov 2022 13:11:10 +0000 Received: from phobos.denx.de ([2a01:238:438b:c500:173d:9f52:ddab:ee01]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oqwTI-003a5A-N2 for linux-arm-kernel@lists.infradead.org; Fri, 04 Nov 2022 13:10:58 +0000 Received: from tr.lan (ip-86-49-120-218.bb.vodafone.cz [86.49.120.218]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: marex@denx.de) by phobos.denx.de (Postfix) with ESMTPSA id C18E685255; Fri, 4 Nov 2022 14:10:54 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=denx.de; s=phobos-20191101; t=1667567455; bh=2LwOAEieZo3MqA8rsVebJ1dxgxWLrruXPLT2wPYblLQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=GIOb5OCGSv2kMBCfivQ2l6zyhXbItAMg5ldRhw2mjOil7smblR7aLBmaesCFWdU6m HAPO8C1NURnWYn39JqWN4JnxEq9pM/yQzic2EWho2s3RWW5NBAZ+Cl9mUXyQIJTPYw TvBdKJ+7WjWtc9slQ5I8IeronprbV+eobopyYN7n5qrvBkdwAWobCSMZ1xUmQ54U5X mSKxmI4gEc4agOybwsRwyoV7bYhKaAnqQBZu6KBdv9+i1x4ly9SBx2Oo419S81VMKt kdjTnLkVZuU9KqJWnI0Ic+Td7I2mepI2v8yB+qqlr0dCDv2bi/n473LkLhUiyNiRyi 6ka7lJdlKL6rQ== From: Marek Vasut To: devicetree@vger.kernel.org Cc: Marek Vasut , Fabio Estevam , Krzysztof Kozlowski , Lucas Stach , Richard Zhu , Rob Herring , Shawn Guo , linux-arm-kernel@lists.infradead.org, NXP Linux Team Subject: [PATCH v2 2/3] dt-bindings: imx6q-pcie: Handle various PD configurations Date: Fri, 4 Nov 2022 14:10:43 +0100 Message-Id: <20221104131044.103241-2-marex@denx.de> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20221104131044.103241-1-marex@denx.de> References: <20221104131044.103241-1-marex@denx.de> MIME-Version: 1.0 X-Virus-Scanned: clamav-milter 0.103.6 at phobos.denx.de X-Virus-Status: Clean X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221104_061057_084854_B27C9932 X-CRM114-Status: GOOD ( 12.91 ) 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 The i.MX SoCs have various power domain configurations routed into the PCIe IP. MX6SX is the only one which contains 2 domains and also uses power-domain-names. MX6QDL do not use any domains. All the rest uses one domain and does not use power-domain-names anymore. Document all those configurations in the DT binding document. Signed-off-by: Marek Vasut --- Cc: Fabio Estevam Cc: Krzysztof Kozlowski Cc: Lucas Stach Cc: Richard Zhu Cc: Rob Herring Cc: Shawn Guo Cc: linux-arm-kernel@lists.infradead.org Cc: NXP Linux Team To: devicetree@vger.kernel.org --- V2: - Keep the power-domains description in the main section --- .../bindings/pci/fsl,imx6q-pcie.yaml | 55 ++++++++++++++----- 1 file changed, 42 insertions(+), 13 deletions(-) diff --git a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml index 1cfea8ca72576..2087dab95d679 100644 --- a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml +++ b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml @@ -68,19 +68,6 @@ properties: description: A phandle to an fsl,imx7d-pcie-phy node. Additional required properties for imx7d-pcie and imx8mq-pcie. - power-domains: - items: - - description: The phandle pointing to the DISPLAY domain for - imx6sx-pcie, to PCIE_PHY power domain for imx7d-pcie and - imx8mq-pcie. - - description: The phandle pointing to the PCIE_PHY power domains - for imx6sx-pcie. - - power-domain-names: - items: - - const: pcie - - const: pcie_phy - resets: maxItems: 3 description: Phandles to PCIe-related reset lines exposed by SRC @@ -132,6 +119,19 @@ properties: phy-names: const: pcie-phy + power-domains: + minItems: 1 + items: + - description: The phandle pointing to the DISPLAY domain for + imx6sx-pcie, to PCIE_PHY power domain for imx7d-pcie and + imx8mq-pcie. + - description: The phandle pointing to the PCIE_PHY power domains + for imx6sx-pcie. + power-domain-names: + items: + - const: pcie + - const: pcie_phy + reset-gpio: description: Should specify the GPIO for controlling the PCI bus device reset signal. It's not polarity aware and defaults to active-low reset @@ -241,6 +241,35 @@ allOf: - const: pcie_bus - const: pcie_phy + - if: + properties: + compatible: + contains: + const: fsl,imx6sx-pcie + then: + properties: + power-domains: + minItems: 2 + maxItems: 2 + power-domain-names: + minItems: 2 + maxItems: 2 + else: + if: + not: + properties: + compatible: + contains: + enum: + - fsl,imx6q-pcie + - fsl,imx6qp-pcie + then: + properties: + power-domains: + minItems: 1 + maxItems: 1 + power-domain-names: false + examples: - | #include