kernel/linux.git/drivers/mfd, branch v6.12.80

mfd: omap-usb-host: Fix OF populate on driver rebind

2026-03-04T12:21:47+00:00

[ Upstream commit 24804ba508a3e240501c521685a1c4eb9f574f8e ] Since commit c6e126de43e7 ("of: Keep track of populated platform devices") child devices will not be created by of_platform_populate() if the devices had previously been deregistered individually so that the OF_POPULATED flag is still set in the corresponding OF nodes. Switch to using of_platform_depopulate() instead of open coding so that the child devices are created if the driver is rebound. Fixes: c6e126de43e7 ("of: Keep track of populated platform devices") Cc: stable@vger.kernel.org # 3.16 Signed-off-by: Johan Hovold Reviewed-by: Andreas Kemnade Link: https://patch.msgid.link/20251219110714.23919-1-johan@kernel.org Signed-off-by: Lee Jones Signed-off-by: Sasha Levin

mfd: qcom-pm8xxx: Fix OF populate on driver rebind

2026-03-04T12:21:47+00:00

[ Upstream commit 27a8acea47a93fea6ad0e2df4c20a9b51490e4d9 ] Since commit c6e126de43e7 ("of: Keep track of populated platform devices") child devices will not be created by of_platform_populate() if the devices had previously been deregistered individually so that the OF_POPULATED flag is still set in the corresponding OF nodes. Switch to using of_platform_depopulate() instead of open coding so that the child devices are created if the driver is rebound. Fixes: c6e126de43e7 ("of: Keep track of populated platform devices") Cc: stable@vger.kernel.org # 3.16 Signed-off-by: Johan Hovold Reviewed-by: Dmitry Baryshkov Reviewed-by: Konrad Dybcio Link: https://patch.msgid.link/20251219110947.24101-1-johan@kernel.org Signed-off-by: Lee Jones Signed-off-by: Sasha Levin

mfd: core: Add locking around 'mfd_of_node_list'

2026-03-04T12:21:47+00:00

[ Upstream commit 20117c92bcf9c11afd64d7481d8f94fdf410726e ] Manipulating a list in the kernel isn't safe without some sort of mutual exclusion. Add a mutex any time we access / modify 'mfd_of_node_list' to prevent possible crashes. Cc: stable@vger.kernel.org Fixes: 466a62d7642f ("mfd: core: Make a best effort attempt to match devices with the correct of_nodes") Signed-off-by: Douglas Anderson Link: https://patch.msgid.link/20251210113002.1.I6ceaca2cfb7eb25737012b166671f516696be4fd@changeid Signed-off-by: Lee Jones Signed-off-by: Sasha Levin

mfd: intel-lpss: Add Intel Nova Lake-S PCI IDs

2026-03-04T12:21:26+00:00

[ Upstream commit cefd793fa17de708d043adab50e7f96f414b0f1d ] Add Intel Nova Lake-S LPSS PCI IDs. Signed-off-by: Ilpo Järvinen Acked-by: Andy Shevchenko Link: https://patch.msgid.link/20260113172151.48062-1-ilpo.jarvinen@linux.intel.com Signed-off-by: Lee Jones Signed-off-by: Sasha Levin

Revert "mfd: da9052-spi: Change read-mask to write-mask"

2026-03-04T12:21:26+00:00

[ Upstream commit 12daa9c1954542bf98bb942fb2dadf19de79a44b ] This reverts commit 2e3378f6c79a1b3f7855ded1ef306ea4406352ed. Almost every register in this chip can be customized via OTP memory. Somehow the value for R19, which decide if the flag is set on read or write operation, seems to have been overwritten for the chip the original patch were written for. Revert the change to follow the default behavior. Signed-off-by: Marcus Folkesson Link: https://patch.msgid.link/20251124-da9052-revert-v1-1-fbeb2c894002@gmail.com Signed-off-by: Lee Jones Signed-off-by: Sasha Levin

mfd: simple-mfd-i2c: Add Delta TN48M CPLD support

2026-03-04T12:20:32+00:00

[ Upstream commit 8f34c1a64c5394d2b51d3fba197947dc4b0b48a0 ] 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 Signed-off-by: Sasha Levin

mfd: simple-mfd-i2c: Keep compatible strings in alphabetical order

2026-03-04T12:20:32+00:00

[ Upstream commit 3ed50d77924ff2e35918739df145dd429cee0ce4 ] Reorder the of_device_id structures so that they are in alphabetical order. Signed-off-by: Ioana Ciornei Signed-off-by: Lee Jones Stable-dep-of: 8f34c1a64c53 ("mfd: simple-mfd-i2c: Add Delta TN48M CPLD support") Signed-off-by: Sasha Levin

mfd: simple-mfd-i2c: Add SpacemiT P1 support

2026-03-04T12:20:32+00:00

[ Upstream commit 6fc5d415c10e98ac1b31dd1d5653443e691cdcff ] Enable support for the RTC and regulators found in the SpacemiT P1 PMIC. Support is implemented by the simple I2C MFD driver. The P1 PMIC is normally implemented with the SpacemiT K1 SoC. This PMIC provides 6 buck converters and 12 LDO regulators. It also implements a switch, watchdog timer, real-time clock, and more. Initially its RTC and regulators are supported. Signed-off-by: Alex Elder Link: https://lore.kernel.org/r/20250825172057.163883-3-elder@riscstar.com Signed-off-by: Lee Jones Stable-dep-of: 8f34c1a64c53 ("mfd: simple-mfd-i2c: Add Delta TN48M CPLD support") Signed-off-by: Sasha Levin

mfd: simple-mfd-i2c: Add compatible strings for Layerscape QIXIS FPGA

2026-03-04T12:20:31+00:00

[ Upstream commit 81a2c31257411296862487aaade98b7d9e25dc72 ] The QIXIS FPGA found on Layerscape boards such as LX2160AQDS, LS1028AQDS etc deals with power-on-reset timing, muxing etc. Use the simple-mfd-i2c as its core driver by adding its compatible string (already found in some dt files). By using the simple-mfd-i2c driver, any child device will have access to the i2c regmap created by it. Signed-off-by: Ioana Ciornei Link: https://lore.kernel.org/r/20250707153120.1371719-1-ioana.ciornei@nxp.com Signed-off-by: Lee Jones Stable-dep-of: 8f34c1a64c53 ("mfd: simple-mfd-i2c: Add Delta TN48M CPLD support") Signed-off-by: Sasha Levin

mfd: simple-mfd-i2c: Add MAX77705 support

2026-03-04T12:20:31+00:00

[ Upstream commit 7b591ef98b3fc1ce20c3ccb86715429b72e2e6f0 ] Add MAX77705 support - fuel gauge and hwmon devices. Hwmon provides charger input and system bus measurements. Signed-off-by: Dzmitry Sankouski Reviewed-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20250123-starqltechn_integration_upstream-v17-4-8b06685b6612@gmail.com Signed-off-by: Lee Jones Stable-dep-of: 8f34c1a64c53 ("mfd: simple-mfd-i2c: Add Delta TN48M CPLD support") Signed-off-by: Sasha Levin