From: Robert Marko Date: Mon, 12 Jan 2026 16:14:52 +0000 (+0100) Subject: mfd: simple-mfd-i2c: Add Delta TN48M CPLD support X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8f34c1a64c5394d2b51d3fba197947dc4b0b48a0;p=thirdparty%2Flinux.git mfd: simple-mfd-i2c: Add Delta TN48M CPLD support Delta TN48M switches have a Lattice CPLD that serves multiple purposes including being a GPIO expander. So, lets use the simple I2C MFD driver to provide the MFD core. Also add a virtual symbol which pulls in the simple-mfd-i2c driver and provide a common symbol on which the subdevice drivers can depend on. Fixes: b3dcb5de6209 ("gpio: Add Delta TN48M CPLD GPIO driver") Signed-off-by: Robert Marko Link: https://lore.kernel.org/20220131133049.77780-2-robert.marko@sartura.hr Link: https://lore.kernel.org/linux-gpio/20260112064950.3837737-1-rdunlap@infradead.org/ Signed-off-by: Linus Walleij Link: https://patch.msgid.link/20260112-mfd-tn48m-v11-1-00c798d8cd2a@kernel.org Signed-off-by: Lee Jones --- diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 7b8d6868e170..7192c9d1d268 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -407,6 +407,17 @@ config MFD_CS47L92 help Support for Cirrus Logic CS42L92, CS47L92 and CS47L93 Smart Codecs +config MFD_TN48M_CPLD + tristate "Delta Networks TN48M switch CPLD driver" + depends on I2C + depends on ARCH_MVEBU || COMPILE_TEST + select MFD_SIMPLE_MFD_I2C + help + Select this option to enable support for Delta Networks TN48M switch + CPLD. It consists of reset and GPIO drivers. CPLD provides GPIOS-s + for the SFP slots as well as power supply related information. + SFP support depends on the GPIO driver being selected. + config PMIC_DA903X bool "Dialog Semiconductor DA9030/DA9034 PMIC Support" depends on I2C=y diff --git a/drivers/mfd/simple-mfd-i2c.c b/drivers/mfd/simple-mfd-i2c.c index 8b751d8e3b5a..7315fad618e4 100644 --- a/drivers/mfd/simple-mfd-i2c.c +++ b/drivers/mfd/simple-mfd-i2c.c @@ -116,6 +116,7 @@ static const struct simple_mfd_data spacemit_p1 = { }; static const struct of_device_id simple_mfd_i2c_of_match[] = { + { .compatible = "delta,tn48m-cpld" }, { .compatible = "fsl,ls1028aqds-fpga" }, { .compatible = "fsl,lx2160aqds-fpga" }, { .compatible = "fsl,lx2160ardb-fpga" },