From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f54.google.com (mail-io1-f54.google.com [209.85.166.54]) (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 A0B1823814F for ; Mon, 14 Apr 2025 19:17:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.54 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744658244; cv=none; b=bDMSV07rve30RwkQtsXRkdqUl2/k185rscCit1JGXwp5EUzhRc3WpJH9Twu8auZSkiesNiUjvDV19LSNc4ShkmN38opVECWxZ7deRe/vQDjnXILTxTRw7HZNnEmTH9Zhr8cHbGFB5UaTp1rtUhrfyxUvvpSmVZ1djeBVPmvqUHc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744658244; c=relaxed/simple; bh=oZwsWyN19YQuLxvi70G/U0IIHVAnZHz9qoqnnkeShL8=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=WYTyUCktOlvi5xIoADtzYPIfucEMkrCCJfMa+vbM+2yZ3L8Lp8zrN5KQ71SzsR5Toxg8PxbFzB/enBcNXVOgWTwXZrpxwF/tDnm2eqMhOp4pVcYqkPD12mb9JTOFCl3661V9hUxsv/hvlhtt4N4f4/UWNGnSOfDBm+anoiPW1uI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=riscstar.com; spf=pass smtp.mailfrom=riscstar.com; dkim=pass (2048-bit key) header.d=riscstar-com.20230601.gappssmtp.com header.i=@riscstar-com.20230601.gappssmtp.com header.b=WiReNg3l; arc=none smtp.client-ip=209.85.166.54 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=riscstar.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=riscstar.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=riscstar-com.20230601.gappssmtp.com header.i=@riscstar-com.20230601.gappssmtp.com header.b="WiReNg3l" Received: by mail-io1-f54.google.com with SMTP id ca18e2360f4ac-85517db52a2so86620239f.3 for ; Mon, 14 Apr 2025 12:17:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=riscstar-com.20230601.gappssmtp.com; s=20230601; t=1744658241; x=1745263041; 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=NOnX2shAz2EreIKfS+XNRjetpp9PVDTaCPEwF/lvRS8=; b=WiReNg3ltf06AJz+dZ5PQQf92X9ZKOz0Qjmbwf/wY8EX6voqW+yx0qsXbeL3oBxKqP eZhMD5BjkLY5/TsLiavNXOmsEM9r7Aik7Pufufv3Q02pCpYmdZNQ8o6sXh4KkKCds88t F6SH99obRBtuUnYq0jZpikRcKjs+QciWT2o0ivc8dVlDPHSUf9BGGRRqgDKGGdzttoEV lIAhPOhvQAOxeg/EZStL8W5WVnPyDUL8v0kiaNlufdV2nrmCQi9SLNsK5a1ghnMqGDC4 3WIcqlIInp+uOker8gLx7Ze0S7VO+3d/CBRxBCv3fYx7/aFNDSGUqqLbUvGrOdYXNrKb MCaw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1744658241; x=1745263041; 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=NOnX2shAz2EreIKfS+XNRjetpp9PVDTaCPEwF/lvRS8=; b=P5VGXuZU0UljOo+8l18YSdXsbQbHcfXMA1jdePQcluA2xdvaXDp9isEr6MZYLdxYQI Nq+AANmJC1etUBd2+quN8BLH1c8UsTmWyqrRDjUY3iWcaJmsSh6fzKBEgT+YJNjmVEqq KLovuDdRURQSap57TYtsPILiKmAL9IMZrTL6YBFPGPZbDMmRYcaG2gDIhN72snoaa7PM +rLf04Gbe1X/RIK/HGXMdsKvB4IqLDQa7ipjA8bc8DbsW/IunQA31odaPMSgwSmaKgPJ fNUyn+GLq/+bWNIvNM5/KuPh6MKLeb3O6n6hgoKHgwH9N4d6O0QqNc+2DIRUciqqjwBx Wj0g== X-Forwarded-Encrypted: i=1; AJvYcCXhA35fIYj1H2nGrpHx3pjRKM7RRyok7KLJdT7lXEjWK8izK2KuDEGUQESo+bcbsmyOcKJBJGihniP1@vger.kernel.org X-Gm-Message-State: AOJu0Yy0kdUcEqo2s/2RMy0wDie/Rn/4U99TtCdBGkd0mt8cifydoxby +pp61z8QXiUda81XJzmSlQyQJoFNGXEc3izXQj9CZ5wyFIEl/wJs5qSblJBqJyE= X-Gm-Gg: ASbGncvXwlgnYl3TDv1kFHuwTA537QFKOYde7JYzsWGjnCSllMCfVPLxdXSZuqcYl+b U028bCQGgg1L9ekdxnmUIZXiF9CnwqQowqIJcdJ/sSCWzMjTZIbbvTJG3jFKKaytmUTxn3tc3+o 7PnmXaRobS1iB+lZjgyRC7j0AGbUByo6a/ksO1WAag+CuUoMmoVG6M2Cgr0nRQ5bm5oI859p9An c5pvCB9KhpgwfDs9h2jweD9sWoW0r9J6vNjCZZahMrhkgMwRSaPwvL5OhimyxUDOeKJutiQna2t uUV+Hrx7ZSZVTQKCJkNwmF9jMMwJC2CRb9lxP341raxfUoBJfNP7Z+Rmn3WwY2ze//fPD2JHaIX k/fv+n/olwctjIQ== X-Google-Smtp-Source: AGHT+IF+wewcSr2YJ4blAeH5OccXBibu/mClWnQWAdm112vnTse7zLtH44BvxSZA8DZrAtcKFRUvag== X-Received: by 2002:a05:6e02:2145:b0:3d5:890b:d9df with SMTP id e9e14a558f8ab-3d7ec266fd2mr117489655ab.15.1744658241457; Mon, 14 Apr 2025 12:17:21 -0700 (PDT) Received: from localhost.localdomain (c-73-228-159-35.hsd1.mn.comcast.net. [73.228.159.35]) by smtp.gmail.com with ESMTPSA id 8926c6da1cb9f-4f505e026d1sm2715662173.94.2025.04.14.12.17.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 14 Apr 2025 12:17:21 -0700 (PDT) From: Alex Elder To: mturquette@baylibre.com, sboyd@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org Cc: p.zabel@pengutronix.de, dlan@gentoo.org, heylenay@4d2.org, guodong@riscstar.com, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, spacemit@lists.linux.dev, devicetree@vger.kernel.org, linux-clk@vger.kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 0/7] clk: spacemit: add K1 reset support Date: Mon, 14 Apr 2025 14:17:07 -0500 Message-ID: <20250414191715.2264758-1-elder@riscstar.com> X-Mailer: git-send-email 2.45.2 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit This series adds reset controller support for the SpacemiT K1 SoC. As before, this version is built upon the clock controller driver that Haylen Chu has out for review (currently at v7): https://lore.kernel.org/lkml/20250412074423.38517-2-heylenay@4d2.org/ All of these patches are available here: https://github.com/riscstar/linux/tree/outgoing/reset-v4 Between version 3 and version 4: - Now based on Haylen Chu's v7 clock code, built on v6.15-rc2. - Added Krzysztof's Reviewed-by on the first patch. Here is version 2 of this series. https://lore.kernel.org/lkml/20250409211741.1171584-1-elder@riscstar.com/ Between version 2 and version 3 there was no feedback, however: - Haylen posted v6 of the clock series, and it included some changes that affected the logic in this reset code. - I was informed that defining CCU nodes without any clocks led to warnings about "clocks" being a required property when running "make dtbs_check". For that reason, I made clock properties optional for reset-only CCU nodes. - This code is now based on v6.15-rc1, which includes a few commits that were listed as dependencies previously. Here is version 2 of this series. https://lore.kernel.org/lkml/20250328210233.1077035-1-elder@riscstar.com/ Between version 1 and version 2: - Added Rob's Reviewed-by tag on the first patch - Renamed the of_match_data data type (and one or two other symbols) to use "spacemit" rather than "k1". - Replaced the abbreviated "rst" or "RST" in names of newly-defined sympols with "reset" or "RESET" respectively. - Eliminated rcdev_to_controller(), which was only used once. - Changed a function that unsafely did a read/modify/write of a register to use regmap_update_bits() instead as suggested by Haylen. - Eliminated a null check for a pointer known to be non-null. - Reordered the assignment of reset controller device fields. - Added a "sentinel" comment as requested by Yixun. - Updated to be based on Linux v6.14 final. Here is the first version of this series. https://lore.kernel.org/lkml/20250321151831.623575-1-elder@riscstar.com/ -Alex Alex Elder (7): dt-bindings: soc: spacemit: define spacemit,k1-ccu resets clk: spacemit: rename spacemit_ccu_data fields clk: spacemit: add reset controller support clk: spacemit: define existing syscon resets clk: spacemit: make clocks optional clk: spacemit: define new syscons with only resets riscv: dts: spacemit: add reset support for the K1 SoC .../soc/spacemit/spacemit,k1-syscon.yaml | 29 +- arch/riscv/boot/dts/spacemit/k1.dtsi | 18 + drivers/clk/spacemit/ccu-k1.c | 330 +++++++++++++++++- .../dt-bindings/clock/spacemit,k1-syscon.h | 128 +++++++ 4 files changed, 482 insertions(+), 23 deletions(-) base-commit: 846ce0a9d3e86830a3c6253c3b62104b369d6a95 -- 2.45.2