From patchwork Fri Jul 1 19:22:51 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Conor Dooley X-Patchwork-Id: 12903675 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 0F6CDC43334 for ; Fri, 1 Jul 2022 19:24:13 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 66461112C30; Fri, 1 Jul 2022 19:24:10 +0000 (UTC) Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by gabe.freedesktop.org (Postfix) with ESMTPS id BE8D410F5FC for ; Fri, 1 Jul 2022 19:24:07 +0000 (UTC) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 02B3261F72; Fri, 1 Jul 2022 19:24:07 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4EFC7C341C8; Fri, 1 Jul 2022 19:24:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1656703445; bh=p4PQCazigD+xmM5i27kOnGV9rsiuwNDpKW4UIqTXJfI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kUBm2m0/La9PmkaEPbAsuSfP6dZwjsuaeiPTbuUAJk5tIsVOpXtDngNwIqrBzt6ut mzxx5PsisykiMAj6f5V4p0kGj6Uk74t8zFgFh0cX7/vBvhep7u3IGKnljr6fbA368C ZS5SG3jCRkRW1lf3v893YwzS2pslqlh5ANGVF6ze3UNgonSjmumqc90lGKJ/ZjuF+c 13AVgK15YjcoJ0o+Wqs40RQAVXuS//1Evjx3MH/hzkRYYPJ+pAxsk5FqNkuIILiHB1 TUvuEo6eRCFm6SJcJ8PazdbKKMeokz7OxKr4WCT0MyNfaokdWQdbMgWuoLbLadS+3m 67c6YRmTiRaBQ== From: Conor Dooley To: David Airlie , Daniel Vetter , Rob Herring , Krzysztof Kozlowski , Thierry Reding , Sam Ravnborg , Eugeniy Paltsev , Vinod Koul , Liam Girdwood , Mark Brown , Serge Semin , Daniel Lezcano , Palmer Dabbelt , Palmer Dabbelt Subject: [PATCH v4 05/14] dt-bindings: memory-controllers: add canaan k210 sram controller Date: Fri, 1 Jul 2022 20:22:51 +0100 Message-Id: <20220701192300.2293643-6-conor@kernel.org> X-Mailer: git-send-email 2.37.0 In-Reply-To: <20220701192300.2293643-1-conor@kernel.org> References: <20220701192300.2293643-1-conor@kernel.org> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Niklas Cassel , alsa-devel@alsa-project.org, Albert Ou , devicetree@vger.kernel.org, Damien Le Moal , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Conor Dooley , Jose Abreu , Geert Uytterhoeven , Paul Walmsley , dmaengine@vger.kernel.org, linux-riscv@lists.infradead.org, Dillon Min , Masahiro Yamada Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Conor Dooley The k210 U-Boot port has been using the clocks defined in the devicetree to bring up the board's SRAM, but this violates the dt-schema. As such, move the clocks to a dedicated node with the same compatible string & document it. Signed-off-by: Conor Dooley --- .../memory-controllers/canaan,k210-sram.yaml | 52 +++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 Documentation/devicetree/bindings/memory-controllers/canaan,k210-sram.yaml diff --git a/Documentation/devicetree/bindings/memory-controllers/canaan,k210-sram.yaml b/Documentation/devicetree/bindings/memory-controllers/canaan,k210-sram.yaml new file mode 100644 index 000000000000..82be32757713 --- /dev/null +++ b/Documentation/devicetree/bindings/memory-controllers/canaan,k210-sram.yaml @@ -0,0 +1,52 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/memory-controllers/canaan,k210-sram.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Canaan K210 SRAM memory controller + +description: | + The Canaan K210 SRAM memory controller is initialised and programmed by + firmware, but an OS might want to read its registers for error reporting + purposes and to learn about the DRAM topology. + +maintainers: + - Conor Dooley + +properties: + compatible: + enum: + - canaan,k210-sram + + clocks: + minItems: 1 + items: + - description: sram0 clock + - description: sram1 clock + - description: aisram clock + + clock-names: + minItems: 1 + items: + - const: sram0 + - const: sram1 + - const: aisram + +required: + - compatible + - clocks + - clock-names + +additionalProperties: false + +examples: + - | + #include + memory-controller { + compatible = "canaan,k210-sram"; + clocks = <&sysclk K210_CLK_SRAM0>, + <&sysclk K210_CLK_SRAM1>, + <&sysclk K210_CLK_AI>; + clock-names = "sram0", "sram1", "aisram"; + };