From patchwork Thu Aug 29 10:53:15 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: s-vadapalli X-Patchwork-Id: 13783012 X-Patchwork-Delegate: kw@linux.com Received: from fllv0016.ext.ti.com (fllv0016.ext.ti.com [198.47.19.142]) (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 D008418E049; Thu, 29 Aug 2024 10:53:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.47.19.142 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724928823; cv=none; b=s3DtLyYUOutRRM/4GWelHr6qzx1tvCbggnSDF38Wi9pf8WbbFYx2iKf5j9niz5GGfXrEor3/jOiN3tShqF+4gM3ak4ommJpcWnqheeStXcSse5TUye2CjqClpR0jIqfYtEkBo5je6yw4EK/3iMKRT7RhtBAdbwcDdHk/YGQdRTc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724928823; c=relaxed/simple; bh=eOjWmCGYkQaExPYAYn5LNam43OtntIsPkUhHFa6JZ04=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=ebrrswgJDXfT+BGufxIisyQRZkyLl3z53FMa3zqT7uCTERfr8z+7LX1ffNL9tZAye3JyaHaxZ0a1lVQsGipHmZtqvjPEFGUMwvVetxDxJXHbheGKQ6Y2h35Rxhg0qGlfUvHo46tDT1cDFFOZFbev55QegAzkY4I5AHVn8iBweQo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com; spf=pass smtp.mailfrom=ti.com; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b=XKFQYFP/; arc=none smtp.client-ip=198.47.19.142 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ti.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="XKFQYFP/" Received: from fllv0034.itg.ti.com ([10.64.40.246]) by fllv0016.ext.ti.com (8.15.2/8.15.2) with ESMTP id 47TArQma032249; Thu, 29 Aug 2024 05:53:26 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1724928806; bh=X6RXbw20GMJ0FoF1xqS2/F+/UvIx5MHp6Kk6m8ysDCo=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=XKFQYFP/E8eq0P0FF45Ww9UGBbixsAHNuClSA+LVjFJUcWr83b6X2UYX9+CVqfDfL l78Id94C7BXb4nxuj+JsasOFYYd3ekumbiMIlaWw7Hhxz2pT5uolFWA2zbRW9OmmV0 uWQ5iyqO2Yn5te/wNjjTgqcnJlq0l7qMDhSlpV+w= Received: from DFLE108.ent.ti.com (dfle108.ent.ti.com [10.64.6.29]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 47TArQCp081111 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 29 Aug 2024 05:53:26 -0500 Received: from DFLE114.ent.ti.com (10.64.6.35) by DFLE108.ent.ti.com (10.64.6.29) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Thu, 29 Aug 2024 05:53:26 -0500 Received: from lelvsmtp5.itg.ti.com (10.180.75.250) by DFLE114.ent.ti.com (10.64.6.35) 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; Thu, 29 Aug 2024 05:53:26 -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 47TArHpS070385; Thu, 29 Aug 2024 05:53:22 -0500 From: Siddharth Vadapalli To: , , , , , , , , CC: , , , , , Subject: [PATCH v4 1/2] dt-bindings: PCI: ti,j721e-pci-host: Add ACSPCIE proxy control property Date: Thu, 29 Aug 2024 16:23:15 +0530 Message-ID: <20240829105316.1483684-2-s-vadapalli@ti.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20240829105316.1483684-1-s-vadapalli@ti.com> References: <20240829105316.1483684-1-s-vadapalli@ti.com> Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 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 --- v3: https://lore.kernel.org/r/20240827055548.901285-2-s-vadapalli@ti.com/ Changes since v3: - Rebased patch on next-20240829. 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: