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[60.250.196.139]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-7fd156dfe2fsm8905748a12.31.2024.12.10.02.45.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 10 Dec 2024 02:45:54 -0800 (PST) From: Ming Yu X-Google-Original-From: Ming Yu To: tmyu0@nuvoton.com, lee@kernel.org, linus.walleij@linaro.org, brgl@bgdev.pl, andi.shyti@kernel.org, mkl@pengutronix.de, mailhol.vincent@wanadoo.fr, andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, wim@linux-watchdog.org, linux@roeck-us.net, jdelvare@suse.com, alexandre.belloni@bootlin.com Cc: linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, linux-i2c@vger.kernel.org, linux-can@vger.kernel.org, netdev@vger.kernel.org, linux-watchdog@vger.kernel.org, linux-hwmon@vger.kernel.org, linux-rtc@vger.kernel.org Subject: [PATCH v3 0/7] Add Nuvoton NCT6694 MFD drivers Date: Tue, 10 Dec 2024 18:45:17 +0800 Message-Id: <20241210104524.2466586-1-tmyu0@nuvoton.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 This patch series introduces support for Nuvoton NCT6694, a peripheral expander based on USB interface. It models the chip as an MFD driver (1/7), GPIO driver(2/7), I2C Adapter driver(3/7), CANfd driver(4/7), WDT driver(5/7), HWMON driver(6/7), and RTC driver(7/7). The MFD driver implements USB device functionality to issue custom-define USB bulk pipe packets for NCT6694. Each child device can use the USB functions nct6694_read_msg() and nct6694_write_msg() to issue a command. They can also request interrupt that will be called when the USB device receives its interrupt pipe. The following introduces the custom-define USB transactions: nct6694_read_msg - Send bulk-out pipe to write request packet Receive bulk-in pipe to read response packet Receive bulk-in pipe to read data packet nct6694_write_msg - Send bulk-out pipe to write request packet Send bulk-out pipe to write data packet Receive bulk-in pipe to read response packet Receive bulk-in pipe to read data packet Changes since version 2: - Add MODULE_ALIAS() for each child driver - Modify gpio line names be a local variable in gpio-nct6694.c - Drop unnecessary platform_get_drvdata() in gpio-nct6694.c - Rename each command in nct6694_canfd.c - Modify each function name consistently in nct6694_canfd.c - Modify the pretimeout validation procedure in nct6694_wdt.c - Fix warnings in nct6694-hwmon.c Changes since version 1: - Implement IRQ domain to handle IRQ demux in nct6694.c - Modify USB_DEVICE to USB_DEVICE_AND_INTERFACE_INFO API in nct6694.c - Add each driver's command structure - Fix USB functions in nct6694.c - Fix platform driver registration in each child driver - Sort each driver's header files alphabetically - Drop unnecessary header in gpio-nct6694.c - Add gpio line names in gpio-nct6694.c - Fix errors and warnings in nct6694_canfd.c - Fix TX-flow control in nct6694_canfd.c - Fix warnings in nct6694_wdt.c - Drop unnecessary logs in nct6694_wdt.c - Modify start() function to setup device in nct6694_wdt.c - Add voltage sensors functionality in nct6694-hwmon.c - Add temperature sensors functionality in nct6694-hwmon.c - Fix overwrite error return values in nct6694-hwmon.c - Add write value limitation for each write() function in nct6694-hwmon.c - Drop unnecessary logs in rtc-nct6694.c - Fix overwrite error return values in rtc-nct6694.c - Modify to use dev_err_probe API in rtc-nct6694.c Ming Yu (7): mfd: Add core driver for Nuvoton NCT6694 gpio: Add Nuvoton NCT6694 GPIO support i2c: Add Nuvoton NCT6694 I2C support can: Add Nuvoton NCT6694 CAN support watchdog: Add Nuvoton NCT6694 WDT support hwmon: Add Nuvoton NCT6694 HWMON support rtc: Add Nuvoton NCT6694 RTC support MAINTAINERS | 13 + drivers/gpio/Kconfig | 12 + drivers/gpio/Makefile | 1 + drivers/gpio/gpio-nct6694.c | 438 +++++++++++++++ drivers/hwmon/Kconfig | 10 + drivers/hwmon/Makefile | 1 + drivers/hwmon/nct6694-hwmon.c | 768 ++++++++++++++++++++++++++ drivers/i2c/busses/Kconfig | 10 + drivers/i2c/busses/Makefile | 1 + drivers/i2c/busses/i2c-nct6694.c | 153 +++++ drivers/mfd/Kconfig | 10 + drivers/mfd/Makefile | 2 + drivers/mfd/nct6694.c | 382 +++++++++++++ drivers/net/can/Kconfig | 10 + drivers/net/can/Makefile | 1 + drivers/net/can/nct6694_canfd.c | 920 +++++++++++++++++++++++++++++++ drivers/rtc/Kconfig | 10 + drivers/rtc/Makefile | 1 + drivers/rtc/rtc-nct6694.c | 264 +++++++++ drivers/watchdog/Kconfig | 11 + drivers/watchdog/Makefile | 1 + drivers/watchdog/nct6694_wdt.c | 277 ++++++++++ include/linux/mfd/nct6694.h | 139 +++++ 23 files changed, 3435 insertions(+) create mode 100644 drivers/gpio/gpio-nct6694.c create mode 100644 drivers/hwmon/nct6694-hwmon.c create mode 100644 drivers/i2c/busses/i2c-nct6694.c create mode 100644 drivers/mfd/nct6694.c create mode 100644 drivers/net/can/nct6694_canfd.c create mode 100644 drivers/rtc/rtc-nct6694.c create mode 100644 drivers/watchdog/nct6694_wdt.c create mode 100644 include/linux/mfd/nct6694.h