From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-qt1-f170.google.com (mail-qt1-f170.google.com [209.85.160.170]) (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 247AA288CB5 for ; Thu, 26 Jun 2025 14:18:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.170 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750947516; cv=none; b=K1axBmBgd+73/8w4VuaopIGMCog4kF/gfU+5RLt6EZGx0MujBAFsdgZS45YC6+VkCHqwKdy1PTCmYjvWacoNzoxyGc58agt4UShs04gXrbfrYqE40L00qZc0VC19VEfxakUnb3jitG5LEP9oWbtA6NvFborIqCXHlwCZtyVbv/4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750947516; c=relaxed/simple; bh=X0GjaqTTAa5JidnwmIm7FesIRgbpydxFUu/Rva0HYuA=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=Yp/vbZ6NGirA/6aBi/ZVrYv+s7EC3nkOlStVHDVa1+oG8dcrRIi/hV2mV7l5FQnvEsGoLoNJ5hxQhdYPsf/k+vi8gMXVUqxzKyqXVMUdkfUaIambulU7PzRKdkytifOxIHaQ1ASJl1nOIhHhAgtqRep5SzICPSjMh8ySGtvZBu8= 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=209.85.160.170 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-f170.google.com with SMTP id d75a77b69052e-4a5903bceffso14499341cf.3 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=ctxmLNrZD6jFxuw5DCx6HN45PqwNT+tzzP2ZEuwJxFt+qRJ1y6UtP9wCvt/lJT5GMG +gG5Pn020lYDho3Ed/a04j1d/i6seaGAIrF04Py1LaQtEQL6StMBt9jFgo+EDp0B8iae nT85bTYaacjEnaKkbjAioOh5r06hcQqo04kd7r2Rc2ODX96CoMsCm/NLBtGu9s3ZGfLh 8gbCyuBfC0TfpA7yzAL4ppeE1sVNGbyGYN+i4ozBM4+XAFT2Bni/Ub6YKIaaYLf1Jo36 K2hdXrCmM3jgNKca1278KQsdBD0xvkbPC0p/tJvb8mk2n20fTisKPJahmWzF7JURY7dn y01w== X-Forwarded-Encrypted: i=1; AJvYcCUUe6CGxeOPAJ46EeiQGhe+XKBVdPiipGOsGxtZ509u8hUXKkTHxskvF8OAhrJYOKxYWx26+x9Pl04=@vger.kernel.org X-Gm-Message-State: AOJu0Yzf9/Z+c8ZpJrbwtor5Ffg3xDlrf3aG8X1NQsPRvsDRuRBHMCUE tJryOkZqckiekVqyXmEfKJhzZu/REjW4zcT5AQPrmJoP46/avC5oRHppTAZrXG8KaAM= X-Gm-Gg: ASbGnct7OdgRfTPhK3YH0gwO3DqQ712LbPh9O2hDBtzm/hSDIiHTwbyyXLMzA2B0aZG +ACFEZVCbqLuNehI2hkwrh0X5YwZ+1PbYc4s7uEKp0PeE/X3QFKmRceJy2CG+u/Wq0EqMj1MvGC sZZbp0qwwz3UVNiANPvUChc7K7O9uXzFXKJrEksncjZ7KS0QlsazGi32kah1jDdjhWgHIqb2WVZ h4kET0rsMx+U7PrE9ebvTdnFC8TNjTfIevWuXdY2BdJtZ9qBw+EItrZWSj/3D3YuBvuubwmatSb uLprQw9MI4IhWYr6SrZb2gLoBSu6PTaWIcWMi57jNxzvLSgdVrZVcsu/hlWuCA2hpwmxu8JCdrN 4s26U0kEITQZIqeUycf0RdO7WzHyOtkhXVj4= 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-rtc@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