From patchwork Fri Aug 5 07:14:26 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiucheng Xu X-Patchwork-Id: 595637 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7418AC00140 for ; Fri, 5 Aug 2022 07:15:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240125AbiHEHPA (ORCPT ); Fri, 5 Aug 2022 03:15:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50264 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240283AbiHEHOz (ORCPT ); Fri, 5 Aug 2022 03:14:55 -0400 Received: from mail-sh.amlogic.com (mail-sh.amlogic.com [58.32.228.43]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B11451A383; Fri, 5 Aug 2022 00:14:50 -0700 (PDT) Received: from droid01-xa.amlogic.com (10.88.11.200) by mail-sh.amlogic.com (10.18.11.5) with Microsoft SMTP Server id 15.1.2507.9; Fri, 5 Aug 2022 15:14:38 +0800 From: Jiucheng Xu To: , , , CC: Rob Herring , Krzysztof Kozlowski , Will Deacon , Mark Rutland , Neil Armstrong , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Chris Healy , Jiucheng Xu Subject: [PATCH v4 4/4] dt-binding: perf: Add Amlogic DDR PMU Date: Fri, 5 Aug 2022 15:14:26 +0800 Message-ID: <20220805071426.2598818-4-jiucheng.xu@amlogic.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220805071426.2598818-1-jiucheng.xu@amlogic.com> References: <20220805071426.2598818-1-jiucheng.xu@amlogic.com> MIME-Version: 1.0 X-Originating-IP: [10.88.11.200] Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add binding documentation for the Amlogic G12 series DDR performance monitor unit. Signed-off-by: Jiucheng Xu --- Changes v3 -> v4: - Fix "$id: relative path/filename doesn't match actual path or filename" warning Changes v2 -> v3: - Remove oneOf - Add descriptions - Fix compiling warning Changes v1 -> v2: - Rename file, from aml_ddr_pmu.yaml to amlogic,g12_ddr_pmu.yaml - Delete "model", "dmc_nr", "chann_nr" new properties - Fix compiling error --- .../bindings/perf/amlogic,g12-ddr-pmu.yaml | 52 +++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 53 insertions(+) create mode 100644 Documentation/devicetree/bindings/perf/amlogic,g12-ddr-pmu.yaml diff --git a/Documentation/devicetree/bindings/perf/amlogic,g12-ddr-pmu.yaml b/Documentation/devicetree/bindings/perf/amlogic,g12-ddr-pmu.yaml new file mode 100644 index 000000000000..4d018574ffd1 --- /dev/null +++ b/Documentation/devicetree/bindings/perf/amlogic,g12-ddr-pmu.yaml @@ -0,0 +1,52 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/perf/amlogic,g12-ddr-pmu.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Amlogic G12 DDR performance monitor + +maintainers: + - Jiucheng Xu + +description: | + Amlogic G12 series SoC integrate DDR bandwidth monitor. + A timer is inside and can generate interrupt when timeout. + The bandwidth is counted in the timer ISR. Different platform + has different subset of event format attribute. + +properties: + compatible: + items: + - enum: + - amlogic,g12b-ddr-pmu + - amlogic,g12a-ddr-pmu + - amlogic,sm1-ddr-pmu + + reg: + items: + - description: Physical address of DMC bandwidth register + and size of the configuration address space. + - description: Physical address of DMC PLL register and + size of the configuration address space. + + interrupts: + items: + - description: The IRQ of the inside timer timeout. + +required: + - compatible + - reg + - interrupts + +additionalProperties: false + +examples: + - | + #include + ddr_pmu@ff638000 { + compatible = "amlogic,g12a-ddr-pmu"; + reg = <0xff638000 0x100 + 0xff638c00 0x100>; + interrupts = ; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 8ee68e699e6d..67c2c9e8c4ea 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1055,6 +1055,7 @@ M: Jiucheng Xu S: Supported W: http://www.amlogic.com F: Documentation/admin-guide/perf/meson-ddr-pmu.rst +F: Documentation/devicetree/bindings/perf/amlogic,g12-ddr-pmu.yaml F: drivers/perf/amlogic/ F: include/soc/amlogic/