From patchwork Sun Jun 13 20:47:42 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nobuhiro Iwamatsu X-Patchwork-Id: 459590 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 42368C48BE8 for ; Sun, 13 Jun 2021 20:49:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1B34561285 for ; Sun, 13 Jun 2021 20:49:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232101AbhFMUvE (ORCPT ); Sun, 13 Jun 2021 16:51:04 -0400 Received: from mail-pg1-f179.google.com ([209.85.215.179]:33307 "EHLO mail-pg1-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232066AbhFMUvE (ORCPT ); Sun, 13 Jun 2021 16:51:04 -0400 Received: by mail-pg1-f179.google.com with SMTP id e20so7072549pgg.0 for ; Sun, 13 Jun 2021 13:48:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nigauri-org.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=Z+nt2gxzCeIwwu5FmgBWJSi87ilyvtFgbF20fAbcptk=; b=msqVap0O3FgrfRlVBY17+t6fSzvFm1flFjIeZ6hEZRw1mAO13Eh57ZO13eoowW2vGH fUCqVryPmH9rcAX/e53KYl/11rAtU3dUZy6sANsOOPG3mBm/oukDFEpUFl49/yYtgYGw yXgWBGP+clBkdN/iHYHCGD4xfJsLCwQ5PenzlMRVOQkm19jTF8UA0CU5pnO6XTTkTSTh 6wU8wQ4aikEQfFZWSdcY046urFMbipGVxNRZ8dGqQ2sznYUzgnkOcDNcmHlRkisSmfOj bt23O6/GJPsbj7msd92UHzTLMhUQJXZyvNrrWdVVfZXJGu/es46putfMJE+kIQ9RvuPC Hf3Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=Z+nt2gxzCeIwwu5FmgBWJSi87ilyvtFgbF20fAbcptk=; b=TkAfOczeFeetzBMBWKofrZcOaRWDnarqXjHa+ZCfWosjlzWr3Kk7aFrk8nV5o1C9ma dEXRbqwQNzByc0Y5h0EoSVyzDYIBm/au6tXp9zSt276c0lzhKKPaHSiVny0vaUKrKNL5 hZ1D3zkM9fI217i5+fPl9LfAlCI6RnWWL86cQmGDsITLcw2VGZDnc9f+6p5AnlzAmuFD cYp+IfgippFWEiXvkuzG5VUicqe5xfPSU3QDqjcDTlQJosQk44wroUhlO/icynOTL+4C kxyLAn3rBRHV4ffYtPScf/6JHdgt+YAzDdIJLlGGRVF2WYIyQXQnEzLWO7+LP36bUwXk IRjA== X-Gm-Message-State: AOAM533EIJsslqdRlFmT8uLESVf481BzwneRAvEOA+0+WK6eLfRMkA1L aE5eADJDyp8rvtq2JSQpe98B X-Google-Smtp-Source: ABdhPJxeXSdmOh0ofTfS52IKc517CKWXYPl2uIUqdX+cLnnFL2hEr2df4+eB4FDB9vLWE6MFqzIhiA== X-Received: by 2002:aa7:8bd9:0:b029:2f2:f491:8836 with SMTP id s25-20020aa78bd90000b02902f2f4918836mr18654852pfd.47.1623617266443; Sun, 13 Jun 2021 13:47:46 -0700 (PDT) Received: from localhost ([2405:6581:5360:1800:7285:c2ff:fec2:8f97]) by smtp.gmail.com with ESMTPSA id nn6sm9648463pjb.57.2021.06.13.13.47.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 13 Jun 2021 13:47:45 -0700 (PDT) From: Nobuhiro Iwamatsu To: michal.simek@xilinx.com, mturquette@baylibre.com, robh@kernel.org, sboyd@kernel.org Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org, Nobuhiro Iwamatsu Subject: [PATCH v3] dt-bindings: clk: zynqmp: convert bindings to YAML Date: Mon, 14 Jun 2021 05:47:42 +0900 Message-Id: <20210613204742.292053-1-iwamatsu@nigauri.org> X-Mailer: git-send-email 2.32.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Convert common clock for Xilinx Zynq MPSoC SoC bindings documentation to YAML. Signed-off-by: Nobuhiro Iwamatsu --- v3: Drop commit for mailbox/xlnx,zynqmp-ipi-mailbox.txt v2: Fix warning with DT_CHECKER_FLAGS=-m. .../bindings/clock/xlnx,zynqmp-clk.txt | 63 ------------------- .../bindings/clock/xlnx,zynqmp-clk.yaml | 63 +++++++++++++++++++ 2 files changed, 63 insertions(+), 63 deletions(-) delete mode 100644 Documentation/devicetree/bindings/clock/xlnx,zynqmp-clk.txt create mode 100644 Documentation/devicetree/bindings/clock/xlnx,zynqmp-clk.yaml diff --git a/Documentation/devicetree/bindings/clock/xlnx,zynqmp-clk.txt b/Documentation/devicetree/bindings/clock/xlnx,zynqmp-clk.txt deleted file mode 100644 index 391ee1a60bed4a..00000000000000 --- a/Documentation/devicetree/bindings/clock/xlnx,zynqmp-clk.txt +++ /dev/null @@ -1,63 +0,0 @@ --------------------------------------------------------------------------- -Device Tree Clock bindings for the Zynq Ultrascale+ MPSoC controlled using -Zynq MPSoC firmware interface --------------------------------------------------------------------------- -The clock controller is a h/w block of Zynq Ultrascale+ MPSoC clock -tree. It reads required input clock frequencies from the devicetree and acts -as clock provider for all clock consumers of PS clocks. - -See clock_bindings.txt for more information on the generic clock bindings. - -Required properties: - - #clock-cells: Must be 1 - - compatible: Must contain: "xlnx,zynqmp-clk" - - clocks: List of clock specifiers which are external input - clocks to the given clock controller. Please refer - the next section to find the input clocks for a - given controller. - - clock-names: List of clock names which are exteral input clocks - to the given clock controller. Please refer to the - clock bindings for more details. - -Input clocks for zynqmp Ultrascale+ clock controller: - -The Zynq UltraScale+ MPSoC has one primary and four alternative reference clock -inputs. These required clock inputs are: - - pss_ref_clk (PS reference clock) - - video_clk (reference clock for video system ) - - pss_alt_ref_clk (alternative PS reference clock) - - aux_ref_clk - - gt_crx_ref_clk (transceiver reference clock) - -The following strings are optional parameters to the 'clock-names' property in -order to provide an optional (E)MIO clock source: - - swdt0_ext_clk - - swdt1_ext_clk - - gem0_emio_clk - - gem1_emio_clk - - gem2_emio_clk - - gem3_emio_clk - - mio_clk_XX # with XX = 00..77 - - mio_clk_50_or_51 #for the mux clock to gem tsu from 50 or 51 - - -Output clocks are registered based on clock information received -from firmware. Output clocks indexes are mentioned in -include/dt-bindings/clock/xlnx-zynqmp-clk.h. - -------- -Example -------- - -firmware { - zynqmp_firmware: zynqmp-firmware { - compatible = "xlnx,zynqmp-firmware"; - method = "smc"; - zynqmp_clk: clock-controller { - #clock-cells = <1>; - compatible = "xlnx,zynqmp-clk"; - clocks = <&pss_ref_clk>, <&video_clk>, <&pss_alt_ref_clk>, <&aux_ref_clk>, <>_crx_ref_clk>; - clock-names = "pss_ref_clk", "video_clk", "pss_alt_ref_clk","aux_ref_clk", "gt_crx_ref_clk"; - }; - }; -}; diff --git a/Documentation/devicetree/bindings/clock/xlnx,zynqmp-clk.yaml b/Documentation/devicetree/bindings/clock/xlnx,zynqmp-clk.yaml new file mode 100644 index 00000000000000..e7a1384fb646e4 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/xlnx,zynqmp-clk.yaml @@ -0,0 +1,63 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/clock/xlnx,zynqmp-clk.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Xilinx Zynq Ultrascale+ MPSoC clock controller Device Tree Bindings + +maintainers: + - Michal Simek + +description: | + The clock controller is a h/w block of Zynq Ultrascale+ MPSoC clock + tree. It reads required input clock frequencies from the devicetree and acts + as clock provider for all clock consumers of PS clocks. + +properties: + compatible: + const: xlnx,zynqmp-clk + + "#clock-cells": + const: 1 + + clocks: + description: | + List of clock specifiers which are external input + clocks to the given clock controller. + items: + - description: PS reference clock + - description: reference clock for video system + - description: alternative PS reference clock + - description: auxiliary reference clock + - description: transceiver reference clock + + clock-names: + items: + - const: pss_ref_clk + - const: video_clk + - const: pss_alt_ref_clk + - const: aux_ref_clk + - const: gt_crx_ref_clk + +required: + - compatible + - "#clock-cells" + - clocks + - clock-names + +additionalProperties: false + +examples: + - | + firmware { + zynqmp_firmware: zynqmp-firmware { + zynqmp_clk: clock-controller { + #clock-cells = <1>; + compatible = "xlnx,zynqmp-clk"; + clocks = <&pss_ref_clk>, <&video_clk>, <&pss_alt_ref_clk>, <&aux_ref_clk>, <>_crx_ref_clk>; + clock-names = "pss_ref_clk", "video_clk", "pss_alt_ref_clk","aux_ref_clk", "gt_crx_ref_clk"; + }; + }; + }; +...