From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ed1-f45.google.com (mail-ed1-f45.google.com [209.85.208.45]) (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 37611245AF6; Thu, 13 Feb 2025 21:57:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.45 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739483826; cv=none; b=i2yogb/rTWnpLlOsEfSbRR+VJ1rWWAYlHb+pWPcIdbB924YmMpOLD1t67CD0YJx02shr27JuJ8dBbfywjSNWlbWbTBYJ1x4LcoXTI/saBuOQdUfJBBVZ01PqGeRzRyzaR1/zpXOcOAgTxFccwUZT5esI1MneoCBwy2eZMXwQblE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739483826; c=relaxed/simple; bh=fgj0shuMufr7wTndkCWRL/JXLBXmF7UOuG9EsBz7HPw=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=fZV0YGW37zCZziFJJgjN3/e/wWPOGsM7KnZeAYFIVt5sB6q33y8SLT51daHuzRpQwGQ6LJZcRyZLq4kCul0p6P9F+lmDrUU0yQXPbs6GO02p3bFR1HWy7/fBE+UKkgzEmh54RUbhWJq75WHU2L2zagVfqPfJRM7GACmu9noGKtc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=FhLnIRMg; arc=none smtp.client-ip=209.85.208.45 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="FhLnIRMg" Received: by mail-ed1-f45.google.com with SMTP id 4fb4d7f45d1cf-5de5e3729ecso2778675a12.0; Thu, 13 Feb 2025 13:57:03 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1739483822; x=1740088622; 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=E+t6B+jgVmtMaFtzPH7+S0a4yoIONQBzjfTCZovjoAU=; b=FhLnIRMgFCvsC3YSZxm7282Z9SZDKvsO1ESnWXY6aZFFAS7gOZsfXo2drxNrYmCPkT Fg4UeqPt/0vxJG/WPWBTLhZgt8EzytcaNsrP6mUrrmG4VfLNGI7fkrMrnK/LpwfheEFw 165vKggyC+CQncfqZFpZpF0hVZj4vHXU7zzjrCtuxObDIqRN93k3YJn5oLhsKV2kJKRG SX8EhMnwyeSJ4bJztWgLtkc3zCoLLz91HfeFGCF60Rn2F94+8aPW1Wm/wsyUyJbWYsCC E4H0LJx7FQHYwS/Hn4xWEXNGFU3sgbwdaPsuBhAicsFKXm3sRHTEYwFCrp8p60QTcsG/ MQhw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1739483822; x=1740088622; 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=E+t6B+jgVmtMaFtzPH7+S0a4yoIONQBzjfTCZovjoAU=; b=Wm2QecY7EZbFqp3+jAPfsXWJ0MjzXOH8y1wH6pGR0yabo3X0zjZ2jlJfaJQP4nH/z3 ZqJIGgSUUZAm8tpAUWMIwaL/uqkyGYJIqDqYN5wiqaOqDMZ7MOWjgmnfQ+2wefyvB2vk LrMP3+Lml7t8zgXe7gov/fWZRbRvZjMUWKCbmFkT7nGtyIqzcPE3T+KwpUmqLIMLf6h2 FAtigZwEXvlpMs+b3P67o7gFFnjDeCTzO2MZNTZwdYK/3wnEU0c1YxSuXAMy97I9lJst C95jzrSESlD6X+d52b9D7dw9faMQi5DvYyorXjNRS/Odz2noI1mBs358zwlaImot4MG2 FLww== X-Forwarded-Encrypted: i=1; AJvYcCV7LVGWTFy3c/Egd1ZLzFeH6u7bBJ/deGu8pPgT9fssleOa3zXlbuCi5qkIDN8pk5cBteaPD10Q41bg@vger.kernel.org, AJvYcCX+Q1haAbrMqqlCERb5S/eP4PCg48qGR4iwWQFI6tBubkd809iQPWvhMjnIzBRc4+74sHN5V4PNcv0H0ws=@vger.kernel.org X-Gm-Message-State: AOJu0Yw+RwDuepbA6W3q6oqlhMPUpQYjK0Bv3GUyxzcvSp13bucxI+0w DFsOiLBjaMKRUCAqUN9OKVSY/2FRgVWK20kiQZUWR/zQQnlRiwzr+5z8tmwV X-Gm-Gg: ASbGncuffG3B0aukvbrpWU2Us2nC20nLLDCSgQ0b2QqObE4+3ebUe83tsq+1JvAGp0d SmrXdlgcQfTnbpbyEJYs/Sf/s/p+jaFBVhWw0R9qifUIYi9Q4+40NQgI6IrWbU5ZobT9GheKrCB T11kZL9CX0RXg00ERIolOZy7QFjfHILaAzDiwmVe9slt6b68Jdk23R/bgYyuuGJKzjGi5oLL/6q vv26eCZfe5PomlnOF+SxRakc7ZXmi0husZ9rn/5OrGGgV1RzNzlAgC+wybUt2UNkLUgozkD3E/o +WKproDSb5GBf5CrIFvgXmoQPF1r X-Google-Smtp-Source: AGHT+IFbUWokaBSyVOOLzgLUlMVYFf5zz41axl3e6IJ6OWk1r3JOQRJ5oLgxY2Nm8yuJxa4uuyLdiQ== X-Received: by 2002:a17:906:dc91:b0:ab7:c4db:a044 with SMTP id a640c23a62f3a-ab7f3714983mr925567766b.8.1739483822129; Thu, 13 Feb 2025 13:57:02 -0800 (PST) Received: from giga-mm.. ([2a02:1210:861b:6f00:82ee:73ff:feb8:99e3]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-aba532595dfsm209794266b.70.2025.02.13.13.57.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 13 Feb 2025 13:57:01 -0800 (PST) From: Alexander Sverdlin To: devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, linux-rtc@vger.kernel.org Cc: Alexander Sverdlin , Inochi Amaoto , alexandre.belloni@bootlin.com, robh@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, unicorn_wang@outlook.com, inochiama@outlook.com, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, dlan@gentoo.org, linux-kernel@vger.kernel.org, Jingbao Qiu , Krzysztof Kozlowski Subject: [PATCH v11 0/3] riscv: rtc: sophgo: add rtc support for CV1800 Date: Thu, 13 Feb 2025 22:56:44 +0100 Message-ID: <20250213215655.2311793-1-alexander.sverdlin@gmail.com> X-Mailer: git-send-email 2.48.1 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Real Time Clock (RTC) is an independently powered module within the chip, which includes a 32KHz oscillator and a Power On Reset/POR submodule. It can be used for time display and timed alarm generation. Changes since v10: - only start RTC on set_time; - add machine restart handler (as separate patch 3/3); Changes since v9: - picked up orphaned series; - further simplified bitmask macros; - unconditional RTC start (rtc_enable_sec_counter()); - dropped ANA_CALIB modification; - successfully tested on SG2000; v9: https://lore.kernel.org/linux-riscv/20240428060848.706573-1-qiujingbao.dlmu@gmail.com/ Changes since v8: - delete unused macros - using 0/1 instead of the DISABLE/ENABLE macro - pass in the correct pointer when applying for IRQ - convert the incoming pointer into an appropriate structure pointer in the irq handler v8: https://lore.kernel.org/all/20240204044143.415915-1-qiujingbao.dlmu@gmail.com/ Changes since v7: - pass checkpatch.pl --strict - using u32 replace uint32 - using devm_kzalloc(*) replace devm_kzalloc(sizeof()) - sort header files alphabetically - delete unnecessary header files - fix wrap error - drop dependent description - using hardware automatic calibration replace software calibration. see documentation 197 page v7: https://lore.kernel.org/all/20240122080500.2621-1-qiujingbao.dlmu@gmail.com/ documentation: https://github.com/milkv-duo/duo-files/blob/main/duo/datasheet/CV1800B-CV1801B-Preliminary-Datasheet-full-en.pdf Changes since v6: - completely delete POR dt node - remove syscon tag - use devm_regmap_init_mmio() replace syscon_node_to_regmap v6: https://lore.kernel.org/all/20240115160600.5444-1-qiujingbao.dlmu@gmail.com/ Changes since v5: - remove unnecessary lock - fix cv1800_rtc_alarm_irq_enable() - remove duplicate checks - using alrm->enabled instead of unconditionally enabling - remove disable alarms on probe - using rtc_update_irq() replace mess of alarm - remove leak clk - useing devm_rtc_allocate_device() and devm_rtc_register_device() instead old way - add judgment for rtc_enable_sec_counter() - add POR nodes in DTS. This POR device shares the register region with the RTC device v5: https://lore.kernel.org/all/20240108072253.30183-1-qiujingbao.dlmu@gmail.com/ Changes since v4: - remove POR dt-bindings because it empty - remove MFD dt-bindings because SoC does not have MFDs - add syscon attribute to share registers with POR v4: https://lore.kernel.org/all/20231229090643.116575-1-qiujingbao.dlmu@gmail.com/ Changes since v3: - temporarily not submitting RTC driver code waiting for communication with IC designer - add MFD dt-bindings - add POR dt-bindings v3: https://lore.kernel.org/all/20231226100431.331616-1-qiujingbao.dlmu@gmail.com/ Changes since v2: - add mfd support for CV1800 - add rtc to mfd - using regmap replace iomap - merge register address in dts v2: https://lore.kernel.org/lkml/20231217110952.78784-1-qiujingbao.dlmu@gmail.com/ Changes since v1 - fix duplicate names in subject - using RTC replace RTC controller - improve the properties of dt-bindings - using `unevaluatedProperties` replace `additionalProperties` - dt-bindings passed the test - using `devm_platform_ioremap_resource()` replace `platform_get_resource()` and `devm_ioremap_resource()` - fix random order of the code - fix wrong wrapping of the `devm_request_irq()` and map the flag with dts - using devm_clk_get_enabled replace `devm_clk_get()` and `clk_prepare_enable()` - fix return style - add rtc clock calibration function - use spinlock when write register on read/set time v1: https://lore.kernel.org/lkml/20231121094642.2973795-1-qiujingbao.dlmu@gmail.com/ Alexander Sverdlin (1): rtc: sophgo: cv18xx: Add restart handler Jingbao Qiu (2): dt-bindings: rtc: sophgo: add RTC support for Sophgo CV1800 series SoC rtc: sophgo: add rtc support for Sophgo CV1800 SoC .../bindings/rtc/sophgo,cv1800-rtc.yaml | 53 ++++ drivers/rtc/Kconfig | 10 + drivers/rtc/Makefile | 1 + drivers/rtc/rtc-cv1800.c | 277 ++++++++++++++++++ 4 files changed, 341 insertions(+) create mode 100644 Documentation/devicetree/bindings/rtc/sophgo,cv1800-rtc.yaml create mode 100644 drivers/rtc/rtc-cv1800.c -- 2.48.1