From patchwork Tue Aug 27 05:55:47 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Siddharth Vadapalli X-Patchwork-Id: 13778883 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 E6F9CC52D6F for ; Tue, 27 Aug 2024 05:58:43 +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:Content-Type: Content-Transfer-Encoding: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=QPaO3QsNv5NaAoPgz9ubqhBCpY5Raa+kHO4t56mOjpY=; b=QPd0HshSwlwW1uDS/09Mluha4u s6gvAq62G9fkLXFmpoBLPgFpFoO+V8Pgvp6YT6NH9yo12Mu3Hpg93/Uxfvt+CB45J/gTiwjWqgFYh D/lyjMKNcHDCvxZ72pPagiWdHlb4sY9tlLO1tNfP3FSZOnrQleUQTrF+kn5ODv7XiVxlLNW5vIyD2 heQG2Rw+ZkBoPDN12ETwgRADOJikRGXAdGjmBAoVkVPkuWM4gU2tD2Dn+DGt9280Sr2epT0CmU+Bf TiqeU6VOlzlhwPkuO2pscgktqTvxiE12RboOS92TivcNe7PB0Q9iSYxDzP914mNWN4vA9vlBGIO7I 7hgu5ytw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sipDu-00000009wPt-49MP; Tue, 27 Aug 2024 05:58:34 +0000 Received: from lelv0143.ext.ti.com ([198.47.23.248]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sipBc-00000009vvU-3ogu for linux-arm-kernel@lists.infradead.org; Tue, 27 Aug 2024 05:56:14 +0000 Received: from lelv0266.itg.ti.com ([10.180.67.225]) by lelv0143.ext.ti.com (8.15.2/8.15.2) with ESMTP id 47R5txuH086225; Tue, 27 Aug 2024 00:55:59 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1724738159; bh=QPaO3QsNv5NaAoPgz9ubqhBCpY5Raa+kHO4t56mOjpY=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=VzCWsZzDi+m+xIcvXoVZOhTdK2VfVQSNL7nRwMstghofeXlRItvqGrhRN90hpkDBq ZE29evwNoUL0nAubgPL9+PkPOxKe4yM200Uo8mZibwYdM+ommesrbLfsjIh+4LpcAl X1sHoE/vslgF9bPrsYQy9QyqLTAId1ENJol57t5M= Received: from DLEE113.ent.ti.com (dlee113.ent.ti.com [157.170.170.24]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 47R5txm2086475 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 27 Aug 2024 00:55:59 -0500 Received: from DLEE114.ent.ti.com (157.170.170.25) by DLEE113.ent.ti.com (157.170.170.24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Tue, 27 Aug 2024 00:55:59 -0500 Received: from lelvsmtp5.itg.ti.com (10.180.75.250) by DLEE114.ent.ti.com (157.170.170.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23 via Frontend Transport; Tue, 27 Aug 2024 00:55:59 -0500 Received: from uda0492258.dhcp.ti.com (uda0492258.dhcp.ti.com [10.24.72.81]) by lelvsmtp5.itg.ti.com (8.15.2/8.15.2) with ESMTP id 47R5tn7e103422; Tue, 27 Aug 2024 00:55:54 -0500 From: Siddharth Vadapalli To: , , , , , , , , CC: , , , , , Subject: [PATCH v3 1/2] dt-bindings: PCI: ti,j721e-pci-host: Add ACSPCIE proxy control property Date: Tue, 27 Aug 2024 11:25:47 +0530 Message-ID: <20240827055548.901285-2-s-vadapalli@ti.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20240827055548.901285-1-s-vadapalli@ti.com> References: <20240827055548.901285-1-s-vadapalli@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240826_225613_058746_8CDAF94C X-CRM114-Status: GOOD ( 10.57 ) 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 Add the "ti,syscon-acspcie-proxy-ctrl" device-tree property which is used to obtain a reference to the ACSPCIE Proxy Control register along with the details of the PAD IO Buffer output enable bits. The ACSPCIE Proxy Control register is used to drive the reference clock for the PCIe Endpoint device via the PAD IO Buffers of the ACSPCIE module. The ACSPCIE module can be used as an alternative to either an on-board clock generator or an external clock generator for providing the reference clock to the PCIe Endpoint device. Signed-off-by: Siddharth Vadapalli Acked-by: Krzysztof Kozlowski --- v2: https://lore.kernel.org/r/20240729092855.1945700-2-s-vadapalli@ti.com/ Changes since v2: - Rebased patch on next-20240826. v1: https://lore.kernel.org/r/20240715120936.1150314-3-s-vadapalli@ti.com/ Changes since v1: - Collected Acked-by tag from: Krzysztof Kozlowski https://lore.kernel.org/r/1caa0c9a-1de7-41db-be2b-557b49f4a248@kernel.org/ .../devicetree/bindings/pci/ti,j721e-pci-host.yaml | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml b/Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml index 15a2658ceeef..69b499c96c71 100644 --- a/Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml +++ b/Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml @@ -38,6 +38,16 @@ properties: - const: reg - const: cfg + ti,syscon-acspcie-proxy-ctrl: + $ref: /schemas/types.yaml#/definitions/phandle-array + items: + - items: + - description: Phandle to the ACSPCIE Proxy Control Register + - description: Bitmask corresponding to the PAD IO Buffer + output enable fields (Active Low). + description: Specifier for enabling the ACSPCIE PAD outputs to drive + the reference clock to the Endpoint device. + ti,syscon-pcie-ctrl: $ref: /schemas/types.yaml#/definitions/phandle-array items: