From patchwork Wed Apr 10 12:26:48 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu X-Patchwork-Id: 13624177 Received: from mail-lj1-f177.google.com (mail-lj1-f177.google.com [209.85.208.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9599215B14C for ; Wed, 10 Apr 2024 12:27:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.177 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712752034; cv=none; b=CG23audxDDaXRwhwL2Oh8IlGbPGaFLmyvXU1PBMXy3RLqiJIl7enCoGi7Mu39U+Jsi8CzqAXWzgc0Spaco/wTWjzRzZDfOBKaL8tc0YVvE+XElU75pjQ47clP85Qm41MqFOhdh7pJFBkQyuEB9FCSF7NXdkcHH7s9JNVZGLhWSc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712752034; c=relaxed/simple; bh=TJKT/pPUusOMgixv4Q5e6XG+MpMem0x+/efc18RrB88=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=pzPY/ZgI3jQjnxoPdCb6zsU/qd9icz6VZZoi25QQhh6s42031kqVMBPDTDbWYbPNQ7qwzS6Z6jIuudQirnpF1NkPoB0yj+sd63GUrUgy5I1tqtfInlceuEZjAsirSBdhfNqSJJCVHWhwhPGh1RGlhMePgF0S8GS77Vbq4F0a/9I= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=tuxon.dev; spf=pass smtp.mailfrom=tuxon.dev; dkim=pass (2048-bit key) header.d=tuxon.dev header.i=@tuxon.dev header.b=DX1BPzrn; arc=none smtp.client-ip=209.85.208.177 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=tuxon.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=tuxon.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=tuxon.dev header.i=@tuxon.dev header.b="DX1BPzrn" Received: by mail-lj1-f177.google.com with SMTP id 38308e7fff4ca-2d8129797fcso90735881fa.1 for ; Wed, 10 Apr 2024 05:27:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuxon.dev; s=google; t=1712752029; x=1713356829; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=1BZbAtu1RktUOhtr/eXu+3740J0qR/Eht6n39nZDjco=; b=DX1BPzrngHnVc108nU2rPg4X+HHaSO4SzvpS+Ci8fghwfMv8ItAkDUaaialy8YnjeT n6K+kPhdcR5pBP1zyg/JHragxnPgRJeL3NaGanA1SK5Ph2J5PxqvsZszI56h+PAfd/OP pCp2hlS8VA4Mj5I7WDhN7UJBKIPAxRvERKcN4peMQv5/wRUcqXKsI0onkYhZIIzaHpYq 9MHCLY+lpKfOg2J9T46XKMrpPKi+vEyLuCbUiMAYROXIKbnjC38FeXnEOY1GgXwdE6Gt 4qYsSXs+KE8ik95avdIT2L2MktG7NjWyQVa1twI0LlhFRjTmdNI/ymBjj38191P94EGP W5vA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1712752029; x=1713356829; 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=1BZbAtu1RktUOhtr/eXu+3740J0qR/Eht6n39nZDjco=; b=pB3hgub0Z6I0HP3Q1uymfBX+xzPML3l93lI6l+H7Dnr9MEWabtmbNkrJV59drrSuL9 wbzVSZeuDAz1t7U9mJGyxTrlLxseJRSWZE59PgP2MK1qLG8c5wQjGWX6Ct1q5aeN7nNY GRd0L0BE9a0z7lvX6pKW8pkgWYhPls6yR/5PejPKDlD0TZrk5PToVKochXJ6EXHJ9EgU fGUmA5Qkqarsfc82WSIAqqegalfroxGQSSOh0zYJbC2u/dOyqRdXmIQESOhIvMR/D7lG Yl2rfWhzI4crsMSefI6jangQexADRFC+bIIvDK+vaakc0x92e1dxPdXP3netwPcG72WL EGdA== X-Gm-Message-State: AOJu0YzPAKMxSzwAWxXmPRGGQKhq9yqszvsJdkqyAAGMqMBsiDV3IF9I HlOXKpfqmn+sDcipXOkqnYPqEMl0TGB6jAhL0VNnsSlaUpRb8+ErTFHzBDmW2P4= X-Google-Smtp-Source: AGHT+IEycXW0nrhq5FASqePeqckHqiK9kjSHcUnm6/pG6A586NTQNYl+wrG+AdZzDo1aZ7WWxP306Q== X-Received: by 2002:a2e:b613:0:b0:2d7:1ce5:3e24 with SMTP id r19-20020a2eb613000000b002d71ce53e24mr1998196ljn.34.1712752029459; Wed, 10 Apr 2024 05:27:09 -0700 (PDT) Received: from claudiu-X670E-Pro-RS.. ([82.78.167.8]) by smtp.gmail.com with ESMTPSA id m2-20020a05600c3b0200b004171f151a5csm1679446wms.16.2024.04.10.05.27.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 10 Apr 2024 05:27:08 -0700 (PDT) From: Claudiu X-Google-Original-From: Claudiu To: geert+renesas@glider.be, mturquette@baylibre.com, sboyd@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, magnus.damm@gmail.com Cc: linux-renesas-soc@vger.kernel.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, claudiu.beznea@tuxon.dev, Claudiu Beznea Subject: [PATCH v3 0/9] clk: renesas: rzg2l: Add support for power domains Date: Wed, 10 Apr 2024 15:26:48 +0300 Message-Id: <20240410122657.2051132-1-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Claudiu Beznea Hi, Series adds support for power domains on rzg2l driver. RZ/G2L kind of devices support a functionality called MSTOP (module stop/standby). According to hardware manual the module could be switch to standby after its clocks are disabled. The reverse order of operation should be done when enabling a module (get the module out of standby, enable its clocks etc). In [1] the MSTOP settings were implemented by adding code in driver to attach the MSTOP state to the IP clocks. But it has been proposed to implement it as power domain. The result is this series. Along with MSTOP functionality there is also module power down functionality (which is currently available only on RZ/G3S). This has been also implemented through power domains. The DT bindings were updated with power domain IDs (plain integers that matches the DT with driver data structures). The current DT bindings were updated with module IDs for the modules listed in tables with name "Registers for Module Standby Mode" (see HW manual) exception being RZ/G3S where, due to the power down functionality, the DDR, TZCDDR, OTFDE_DDR were also added, to avoid system being blocked due to the following lines of code from patch 6/9. + /* Prepare for power down the BUSes in power down mode. */ + if (info->pm_domain_pwrdn_mstop) + writel(CPG_PWRDN_MSTOP_ENABLE, priv->base + CPG_PWRDN_MSTOP); Domain IDs were added to all SoC specific bindings. Thank you, Claudiu Beznea Changes in v3: - collected tags - dinamically detect if a SCIF is serial console and populate pd->suspend_check - dropped patch 09/10 from v2 Changes in v2: - addressed review comments - dropped: - dt-bindings: clock: r9a09g011-cpg: Add always-on power domain IDs - clk: renesas: r9a07g043: Add initial support for power domains - clk: renesas: r9a07g044: Add initial support for power domains - clk: renesas: r9a09g011: Add initial support for power domains - clk: renesas: r9a09g011: Add initial support for power domains - arm64: dts: renesas: r9a07g043: Update #power-domain-cells = <1> - arm64: dts: renesas: r9a07g044: Update #power-domain-cells = <1> - arm64: dts: renesas: r9a07g054: Update #power-domain-cells = <1> - arm64: dts: renesas: r9a09g011: Update #power-domain-cells = <1> as suggested in the review process - dropped "arm64: dts: renesas: rzg3s-smarc-som: Guard the ethernet IRQ GPIOs with proper flags" patch as it was integrated - added suspend to RAM support - collected tag [1] https://lore.kernel.org/all/20231120070024.4079344-4-claudiu.beznea.uj@bp.renesas.com/ Claudiu Beznea (9): dt-bindings: clock: r9a07g043-cpg: Add power domain IDs dt-bindings: clock: r9a07g044-cpg: Add power domain IDs dt-bindings: clock: r9a07g054-cpg: Add power domain IDs dt-bindings: clock: r9a08g045-cpg: Add power domain IDs dt-bindings: clock: renesas,rzg2l-cpg: Update #power-domain-cells = <1> for RZ/G3S clk: renesas: rzg2l: Extend power domain support clk: renesas: r9a08g045: Add support for power domains clk: renesas: rzg2l-cpg: Add suspend/resume support for power domains arm64: dts: renesas: r9a08g045: Update #power-domain-cells = <1> .../bindings/clock/renesas,rzg2l-cpg.yaml | 18 +- arch/arm64/boot/dts/renesas/r9a08g045.dtsi | 20 +- drivers/clk/renesas/r9a08g045-cpg.c | 61 ++++ drivers/clk/renesas/rzg2l-cpg.c | 269 +++++++++++++++++- drivers/clk/renesas/rzg2l-cpg.h | 77 +++++ include/dt-bindings/clock/r9a07g043-cpg.h | 52 ++++ include/dt-bindings/clock/r9a07g044-cpg.h | 58 ++++ include/dt-bindings/clock/r9a07g054-cpg.h | 58 ++++ include/dt-bindings/clock/r9a08g045-cpg.h | 70 +++++ 9 files changed, 659 insertions(+), 24 deletions(-)