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[73.228.159.35]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-6fd0945183dsm30014526d6.44.2025.06.21.20.29.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 21 Jun 2025 20:29:45 -0700 (PDT) From: Alex Elder To: lee@kernel.org, alexandre.belloni@bootlin.com, lgirdwood@gmail.com, broonie@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org Cc: dlan@gentoo.org, wangruikang@iscas.ac.cn, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, alex@ghiti.fr, troymitchell988@gmail.com, guodong@riscstar.com, devicetree@vger.kernel.org, spacemit@lists.linux.dev, linux-rtc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 0/7] spacemit: introduce P1 PMIC support Date: Sat, 21 Jun 2025 22:29:32 -0500 Message-ID: <20250622032941.3768912-1-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 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 series is available here: https://github.com/riscstar/linux/tree/outgoing/pmic-v3 -Alex Between version 2 and version 3: - Removed "spacemit-pmic.c" and updated "simple-mfd-i2c.c" instead - Added an RTC driver, so that the MFD has more than one sub-device - Other suggestions were directed at "spacemit-pmic.c" Here is version 2 of this series: https://lore.kernel.org/lkml/20250613210150.1468845-1-elder@riscstar.com/ Between version 1 and version 2: - Added Reviewed-by tag from Mark Brown to patch 3 - Implemented suggestions from Vivian Wang: - Fixed a typo in the subject line in patch 1 - Now use module_i2c_driver() for the PMIC driver in patch 2 - Added MODULE_ALIAS() for both drivers (patches 2 and 3) - Defined and used DRV_NAME in both drivers - Added additional Kconfig module help text for both drivers Here is version 1 of this series: https://lore.kernel.org/lkml/20250613210150.1468845-1-elder@riscstar.com/ 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 | 10 ++ 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-p1.c | 137 +++++++++++++++ 12 files changed, 588 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-p1.c base-commit: 5d4809e25903ab8e74034c1f23c787fd26d52934 -- 2.45.2