From patchwork Tue Jan 5 10:22:25 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Beznea X-Patchwork-Id: 357231 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=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, 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 C27E3C4332D for ; Tue, 5 Jan 2021 10:24:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9CEB122482 for ; Tue, 5 Jan 2021 10:24:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728396AbhAEKXx (ORCPT ); Tue, 5 Jan 2021 05:23:53 -0500 Received: from esa.microchip.iphmx.com ([68.232.153.233]:3502 "EHLO esa.microchip.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727710AbhAEKXw (ORCPT ); Tue, 5 Jan 2021 05:23:52 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1609842232; x=1641378232; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=xNZPMYNMCKt4ZYCgdVXKuL67MerNUBb6qbvlt+irMUw=; b=NFaR3eDxhXN/NLFR3QZY8NOkTzZkayDNGqaSNJZLvB1bKNPnwAELJ2iq bdSpNgX/85vZRY67qkIAdDrE3+W8zlOoc100POPM9+KPtSSfZiNDKQrj9 qfbqp5DymK1lUMAqwWoe2O5lgoiXu5MUHd5wwelE65UXqH9gFeg9bbExT BjE47WCXJ5k2+Exp1OP8wsGV37rqeFlr3xg0IyvSQLXXiaapMGT7DXYaB mlLFihfzHVZ0jmvpmSWCz6SWLr0KcoLlBsxdleygA31qH0RhTMDx7Kdlo m+M32/2Iyt6sOF7oFZ8btnvXBxO9nceI/G5/gGp2tGpHKhy3Ag5GeiDDc w==; IronPort-SDR: r5kypfzC1TQFsKRhgONpXq22XBR8kgPdPtgS3lZzZhdPU1/UyV7/tqIAfeKsL1DYTJ08ezImY4 4G11rrqRKjEmsSXdg+ZvK0FBm83NNwYx/S3wAwnxuAPjy6sLJHuvPDIIt/Syq1x9btuC3OQfqS x1ptsqrc5Ais3bk1vXLzJ+71CoN/7KvlwYpOZApScNp5lkbKkWVu/2UWCAYKx8YwE3TpxiF4gi XB6uT6KIO5io1zAW6vOXhVDuzZSfLrgOZffAjFE/rHVCOdcTUlJf7kmVZNIuf0MrqOzHd8OmQ/ fXM= X-IronPort-AV: E=Sophos;i="5.78,476,1599548400"; d="scan'208";a="104287954" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa5.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 05 Jan 2021 03:22:37 -0700 Received: from chn-vm-ex02.mchp-main.com (10.10.85.144) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1979.3; Tue, 5 Jan 2021 03:22:35 -0700 Received: from m18063-ThinkPad-T460p.microchip.com (10.10.115.15) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server id 15.1.1979.3 via Frontend Transport; Tue, 5 Jan 2021 03:22:33 -0700 From: Claudiu Beznea To: , , CC: , , , Claudiu Beznea Subject: [PATCH 1/3] dt-bindings: cpufreq: sama7g5-cpufreq: add dt bindings documentation Date: Tue, 5 Jan 2021 12:22:25 +0200 Message-ID: <1609842147-8161-2-git-send-email-claudiu.beznea@microchip.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1609842147-8161-1-git-send-email-claudiu.beznea@microchip.com> References: <1609842147-8161-1-git-send-email-claudiu.beznea@microchip.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Add DT bindings documentation for SAMA7G5 CPUFreq driver. Signed-off-by: Claudiu Beznea --- .../bindings/cpufreq/cpufreq-sama7g5.yaml | 80 ++++++++++++++++++++++ 1 file changed, 80 insertions(+) create mode 100644 Documentation/devicetree/bindings/cpufreq/cpufreq-sama7g5.yaml diff --git a/Documentation/devicetree/bindings/cpufreq/cpufreq-sama7g5.yaml b/Documentation/devicetree/bindings/cpufreq/cpufreq-sama7g5.yaml new file mode 100644 index 000000000000..e8185a614035 --- /dev/null +++ b/Documentation/devicetree/bindings/cpufreq/cpufreq-sama7g5.yaml @@ -0,0 +1,80 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/cpufreq/cpufreq-sama7g5.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: SAMA7G5's CPUFreq device tree bindings + +maintainers: + - Claudiu Beznea + +properties: + clocks: + items: + - description: The clock feeding the CPU + - description: The clock sharing the PLL and prescaller with CPU clock + + clock-names: + items: + - const: cpu + - const: mck + + operating-points-v2: + $ref: /schemas/types.yaml#/definitions/phandle + description: + Phandle to OPP table + + cpu-supply: + $ref: /schemas/types.yaml#/definitions/phandle + description: + Phandle to CPU's voltage regulator + +required: + - clocks + - clock-names + - operating-points-v2 + - cpu-supply + +additionalProperties: false + +examples: + - | + #include + cpu_opp_table: opp-table { + compatible = "operating-points-v2"; + + opp-600000000 { + opp-hz = /bits/ 64 <600000000>; + opp-microvolt = <1125000 1050000 1225000>; + clock-latency-ns = <50000>; + }; + + opp-800000000 { + opp-hz = /bits/ 64 <800000000>; + opp-microvolt = <1175000 1125000 1225000>; + clock-latency-ns = <50000>; + }; + + opp-1000000000 { + opp-hz = /bits/ 64 <1000000000>; + opp-microvolt = <1275000 1225000 1300000>; + clock-latency-ns = <50000>; + }; + }; + + - | + cpus { + #address-cells = <1>; + #size-cells = <0>; + + cpu0: cpu@0 { + device_type = "cpu"; + compatible = "arm,cortex-a7"; + reg = <0x0>; + clocks = <&pmc PMC_TYPE_CORE PMC_CPU>, <&pmc PMC_TYPE_CORE PMC_MCK>; + clock-names = "cpu", "mck"; + operating-points-v2 = <&cpu_opp_table>; + cpu-supply = <&vddcpu>; + }; + };