From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-qt1-f178.google.com (mail-qt1-f178.google.com [209.85.160.178]) (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 1D0FF288C30 for ; Thu, 26 Jun 2025 14:18:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.178 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750947517; cv=none; b=mLpTGDv8L8Yixyqe20cI9QjgME5KSj3U1fST5H7p/7mvs+SR7zjpKkhaqgdH7dHqjA6kYvx193RhtPFL3+SflFIOe0+Eb7NaNgYk0pXlElVkqZTYO0qfYOGBg/6Aas26Pjn/lXTg6kt7uGXbgwQnGvXh2fqX25rSn0xyDDxfS9s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750947517; c=relaxed/simple; bh=X0GjaqTTAa5JidnwmIm7FesIRgbpydxFUu/Rva0HYuA=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=sJYlKRkSLyzwo2cfUeCnthmCcssuuv4WfEqUQKURvuZIxo5OMnSsZU/wY0YN1ajytc/F0TLeSZiDcKoVzk8lRGIS9T4MzFy8KKJ2YgW/SwSZY/qNjhYlw1r5w0KlKtFus2hHdLOk5ZHrHvwcUMQTU8UDd49UNEmPfbtPXdS4GQc= 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=VNMLL8rl; arc=none smtp.client-ip=209.85.160.178 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="VNMLL8rl" Received: by mail-qt1-f178.google.com with SMTP id d75a77b69052e-4a6f6d52af7so11828961cf.1 for ; Thu, 26 Jun 2025 07:18:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=riscstar-com.20230601.gappssmtp.com; s=20230601; t=1750947513; x=1751552313; 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=c1+njo/PU0WQA3UwaVXdY9MyHtDa5fqeWJD6Uqs2k9w=; b=VNMLL8rllbupPZMvcyxhWWcoHrF6OS0EKkR/8C2YYXpkhhfnuSGgzKE5ReCi6P0MsY MfmsRVlki/es7j3vwOn0MPJOLxYRsLu8kmc2DjTi9oTaDFcLHKBKg6d7uQDMkOmOmQVs LUWVV8vQfGf/qNhGB0v/fZnHmGaIje++/mJbTTfnn5J/dSOHNwUtjH5Sdy/wZ9JI2aEZ 1mhNK3s0cjIbDid3M5csMOTADJop6mONVhjQItwPyTUhnVZwOQVy/W11rVpK6vFJ4phd HsKxBnqLcBgCNX5PAGYk7mz1aguP+uynBOLNqBoYM2FbM/z1PqRWuK8dsdFBobyhTWKt /4FA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1750947513; x=1751552313; 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=c1+njo/PU0WQA3UwaVXdY9MyHtDa5fqeWJD6Uqs2k9w=; b=ByQxk1g0KNxG43eJ6iOgVrt0kiLHptEdOUrEiFvJq/QZg45sD+u4B1xl7ZkoDzSJUF 5+AW5OicgF8CoAjYGNn2170OIRqn9QSH5EZmrencPfr0/C0dkcuCnH4iHe+q84v2BiTw 3ZAvdECk55+K84RnO5eSlULNlLspNbRo760GkxH8ur9JHvkkbx7RqC433gwrX6twUBM+ xxq/Nfz1LasdqRMXwhVtjjRE36jyMWGtb2Bcp6bDNJ0YF/ugyrNxukE+MGGS+E8ne3MH GL/21tLgeoVY7HNfTP0wPGKUdQsWEaqjhKlctT31gQmd+JxG7mHf1zh0RD92OduR2PAK vd4g== X-Forwarded-Encrypted: i=1; AJvYcCX94ameC/M4tlmtmtV3gnUwVebDTBZiF0ED1jPcYIUEnEnvHLb3qDEldV7PUPRuk+qC1XRay+fTonC1RX0=@vger.kernel.org X-Gm-Message-State: AOJu0YxqZQqp95kauDLPhIxySMkAi/v9M8zBQoYVFnwS5S8rHIF4urNc OPp9B1K9y4T5vskBzpW11LJAuwUXzKVfu0WUrV5TDrfCIi/vRAYhr6Fcw/C4eClsc+8= X-Gm-Gg: ASbGnctkUzcxpDjTNkstVDRWFr62vRW5sLQgXrz962eH1bw+8oZmem63+3fVfqhuDNg o+niHUhSEZ+Fw6LsslYRrYEnoEul/VZx4TSo/IOrOYwwtVF9hs4yY4evYniDtDX0wSkA3ESdpuB wmCdBvWMVEwMQYcc3bIWzj8G9kqRFcHhfmMnZ0aHfhsvE1OZpmYagP+X0KDboDySO9vOJKyh9lg JzNtmLAZBVoLOP4umisQ0GLtyWR/Z13/Bv/Mpe1HcZK3IsP3yN5IG2loyZvvCCs9E3jS6bjyY81 Z1sVYQ5qObn5+4OlVHOSCGS40WRModIkMCchpWmGmNPECxJ/mj2LiajIFGvRY+t+v0JzPFrIzv+ IjGDxCBkecjnWkMvLG1IVHDtAqwVwWc7ap3A= X-Google-Smtp-Source: AGHT+IH50fVe+8buCV/yNDQQL4G1EmkNFITk4SYtG40d0e2VPlg856V2s5HzZ2dfEIhiKOw+A+yqaA== X-Received: by 2002:ac8:7d43:0:b0:4a5:a7a8:fd83 with SMTP id d75a77b69052e-4a7f2a3c555mr61902301cf.44.1750947512103; Thu, 26 Jun 2025 07:18:32 -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 d75a77b69052e-4a779d6df17sm70266101cf.30.2025.06.26.07.18.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 26 Jun 2025 07:18:31 -0700 (PDT) From: Alex Elder To: lee@kernel.org, lgirdwood@gmail.com, broonie@kernel.org, alexandre.belloni@bootlin.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org Cc: mat.jonczyk@o2.pl, dlan@gentoo.org, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, alex@ghiti.fr, troymitchell988@gmail.com, guodong@riscstar.com, linux-rtc@vger.kernel.org, devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, spacemit@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH v5 0/7] spacemit: introduce P1 PMIC support Date: Thu, 26 Jun 2025 09:18:19 -0500 Message-ID: <20250626141827.1140403-1-elder@riscstar.com> X-Mailer: git-send-email 2.45.2 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The SpacemiT P1 is an I2C-controlled PMIC that implements 6 buck converters and 12 LDOs. It contains a load switch, ADC channels, GPIOs, a real-time clock, and a watchdog timer. This series introduces a multifunction driver for the P1 PMIC as well as drivers for its regulators and RTC. This version updates the RTC code in patch 4 based on a few review comments from Alexandre Belloni. -Alex This series is available here: https://github.com/riscstar/linux/tree/outgoing/pmic-v5 Between version 4 and version 5: - Only check the seconds register for change when looping on read - Return without re-enabling the RTC if writing registers fails - If the RTC is disabled when reading, return an error Here is version 4 of this series: https://lore.kernel.org/lkml/20250625164119.1068842-1-elder@riscstar.com/ More complete history is available at that link. Alex Elder (7): dt-bindings: mfd: add support the SpacemiT P1 PMIC mfd: simple-mfd-i2c: add SpacemiT P1 support regulator: spacemit: support SpacemiT P1 regulators rtc: spacemit: support the SpacemiT P1 RTC riscv: dts: spacemit: enable the i2c8 adapter riscv: dts: spacemit: define fixed regulators riscv: dts: spacemit: define regulator constraints .../devicetree/bindings/mfd/spacemit,p1.yaml | 86 +++++++++ .../boot/dts/spacemit/k1-bananapi-f3.dts | 138 +++++++++++++++ arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi | 7 + arch/riscv/boot/dts/spacemit/k1.dtsi | 11 ++ drivers/mfd/Kconfig | 11 ++ drivers/mfd/simple-mfd-i2c.c | 18 ++ drivers/regulator/Kconfig | 12 ++ drivers/regulator/Makefile | 1 + drivers/regulator/spacemit-p1.c | 157 ++++++++++++++++ drivers/rtc/Kconfig | 10 ++ drivers/rtc/Makefile | 1 + drivers/rtc/rtc-spacemit-p1.c | 167 ++++++++++++++++++ 12 files changed, 619 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/spacemit,p1.yaml create mode 100644 drivers/regulator/spacemit-p1.c create mode 100644 drivers/rtc/rtc-spacemit-p1.c base-commit: ecb259c4f70dd5c83907809f45bf4dc6869961d7 -- 2.45.2