From patchwork Mon Aug 7 13:12:54 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krzysztof Kozlowski X-Patchwork-Id: 711422 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 521DEC001DB for ; Mon, 7 Aug 2023 13:13:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232259AbjHGNNI (ORCPT ); Mon, 7 Aug 2023 09:13:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58848 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231559AbjHGNNH (ORCPT ); Mon, 7 Aug 2023 09:13:07 -0400 Received: from mail-wm1-x333.google.com (mail-wm1-x333.google.com [IPv6:2a00:1450:4864:20::333]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EC887EB for ; Mon, 7 Aug 2023 06:13:01 -0700 (PDT) Received: by mail-wm1-x333.google.com with SMTP id 5b1f17b1804b1-3fe4b45a336so22308485e9.1 for ; Mon, 07 Aug 2023 06:13:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1691413980; x=1692018780; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=ZW8bAZOpofrAZ+E1cERRtB886PDebwGsovf/Pz2sHNY=; b=NBFvLuOfuqii+YsiP6fAqg2jYNwaUOzi+zy+p6hiHsBwUqsGaqC+jifC8WkeFzHJ3p 9bGi50BRrixhKZ/AGczbT2D3DNDVj03v9oFDRRHS2WkCOxSgt0ReT/fFhGpFPPQaiYse HjxvkP/NPV8DohAp7J6hq4SeaAVItFAQMsVt+SfbSHFhqvYCiX33LEnBwSQkefvkpPrQ yAG2arWbsqrzYzjfXZ0MuU6zVyGjf0a83K1Qw76IAac7k0Q0bdpmgA3og9NEk19823Rs PFfEj+kknB+PamtZqAc8GhCIC/I8vL8fk56b6X5XQc+PMdXeDdJWaaRsa4824aUoVD8b 8PLQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1691413980; x=1692018780; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=ZW8bAZOpofrAZ+E1cERRtB886PDebwGsovf/Pz2sHNY=; b=A2Elt6dIU3Tre7+o/aBg57glbvBAg+qKqbikMs7LQnvEwPRPDa4k8urag2VPXA3Mm+ zl0bo9P44SZEa8LVdehJpBn+hhNiaGqBvSNVlL0NMj1aXdQXy6N6n5iQP79JmpytbjVZ HTFaiFHGO3BXCTA/wkBX/9T3+kuLGnyNMAIo/Ncw0WRYxaFhmQGDT+4JNRNEbgF3ysxl JziYYkbECxIw23xkvf3J1sDJysijHVlMJVLEt/HR088E0at2wicDhhwG0nZiocglfx46 IiC5Jw7W3amEmoVpDrhYmxd44NzioMSxFSnEHnEu79Y+QTifJtgcxByvHfK0yum3L8Wk TBWA== X-Gm-Message-State: AOJu0YxKt0lOyUUmlZSR9ylzhE2x1j0W49ajkqf8vViCZojKvPaJPkqn 9CmaWuGz0QA/9HXXiYLlTs/9rg== X-Google-Smtp-Source: AGHT+IFgUw/IsPxcji669Ya7tWBBXSklfkr9EK6+mKTk1ImVlXR/2gF4Mefli/6npyXEZ+Id6V2QeA== X-Received: by 2002:a1c:f60b:0:b0:3fa:991c:2af9 with SMTP id w11-20020a1cf60b000000b003fa991c2af9mr5860825wmc.16.1691413980429; Mon, 07 Aug 2023 06:13:00 -0700 (PDT) Received: from krzk-bin.. ([178.197.222.113]) by smtp.gmail.com with ESMTPSA id j9-20020a5d4489000000b0031411b7087dsm10618428wrq.20.2023.08.07.06.12.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 07 Aug 2023 06:13:00 -0700 (PDT) From: Krzysztof Kozlowski To: Sylwester Nawrocki , Mauro Carvalho Chehab , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Alim Akhtar , linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Krzysztof Kozlowski , Rob Herring Subject: [PATCH v2 1/3] media: dt-bindings: samsung,exynos4212-fimc-is: replace duplicate pmu node with phandle Date: Mon, 7 Aug 2023 15:12:54 +0200 Message-Id: <20230807131256.254243-1-krzysztof.kozlowski@linaro.org> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org The FIMC IS camera must access the PMU (Power Management Unit) IO memory to control camera power. This was achieved by duplicating the PMU node as its child like: soc@0 { system-controller@10020000 { ... }; // Real PMU camera@11800000 { fimc-is@12000000 { // FIMC IS camera node pmu@10020000 { reg = <0x10020000 0x3000>; // Fake PMU node }; }; }; }; This is not a correct representation of the hardware. Mapping the PMU (Power Management Unit) IO memory should be via syscon-like phandle (samsung,pmu-syscon, already used for other drivers), not by duplicating "pmu" Devicetree node inside the FIMC IS. Reviewed-by: Rob Herring Signed-off-by: Krzysztof Kozlowski --- Changes in v2: 1. Add Rb tag. --- .../media/samsung,exynos4212-fimc-is.yaml | 15 ++++++++++----- .../devicetree/bindings/media/samsung,fimc.yaml | 5 +---- 2 files changed, 11 insertions(+), 9 deletions(-) diff --git a/Documentation/devicetree/bindings/media/samsung,exynos4212-fimc-is.yaml b/Documentation/devicetree/bindings/media/samsung,exynos4212-fimc-is.yaml index 3691cd4962b2..3a5ff3f47060 100644 --- a/Documentation/devicetree/bindings/media/samsung,exynos4212-fimc-is.yaml +++ b/Documentation/devicetree/bindings/media/samsung,exynos4212-fimc-is.yaml @@ -75,13 +75,20 @@ properties: power-domains: maxItems: 1 + samsung,pmu-syscon: + $ref: /schemas/types.yaml#/definitions/phandle + description: + Power Management Unit (PMU) system controller interface, used to + power/start the ISP. + patternProperties: "^pmu@[0-9a-f]+$": type: object additionalProperties: false + deprecated: true description: Node representing the SoC's Power Management Unit (duplicated with the - correct PMU node in the SoC). + correct PMU node in the SoC). Deprecated, use samsung,pmu-syscon. properties: reg: @@ -131,6 +138,7 @@ required: - clock-names - interrupts - ranges + - samsung,pmu-syscon - '#size-cells' additionalProperties: false @@ -179,15 +187,12 @@ examples: <&sysmmu_fimc_fd>, <&sysmmu_fimc_mcuctl>; iommu-names = "isp", "drc", "fd", "mcuctl"; power-domains = <&pd_isp>; + samsung,pmu-syscon = <&pmu_system_controller>; #address-cells = <1>; #size-cells = <1>; ranges; - pmu@10020000 { - reg = <0x10020000 0x3000>; - }; - i2c-isp@12140000 { compatible = "samsung,exynos4212-i2c-isp"; reg = <0x12140000 0x100>; diff --git a/Documentation/devicetree/bindings/media/samsung,fimc.yaml b/Documentation/devicetree/bindings/media/samsung,fimc.yaml index 79ff6d83a9fd..530a08f5d3fe 100644 --- a/Documentation/devicetree/bindings/media/samsung,fimc.yaml +++ b/Documentation/devicetree/bindings/media/samsung,fimc.yaml @@ -236,15 +236,12 @@ examples: <&sysmmu_fimc_fd>, <&sysmmu_fimc_mcuctl>; iommu-names = "isp", "drc", "fd", "mcuctl"; power-domains = <&pd_isp>; + samsung,pmu-syscon = <&pmu_system_controller>; #address-cells = <1>; #size-cells = <1>; ranges; - pmu@10020000 { - reg = <0x10020000 0x3000>; - }; - i2c-isp@12140000 { compatible = "samsung,exynos4212-i2c-isp"; reg = <0x12140000 0x100>;