5916 Commits
Author SHA1 Message Date
Linus Torvalds 25c456dab5 Merge tag 'mfd-next-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
 "Core:
   - Add a resource-managed version of alloc_workqueue()
     (`devm_alloc_workqueue()`)
   - Preserve the Open Firmware (OF) node when an ACPI handle
     is present

  Apple SMC:
   - Wire up the Apple SMC power driver by adding a new MFD cell

  Atmel HLCDC:
   - Fetch the LVDS PLL clock as a fallback if the generic sys_clk
     is unavailable

  Broadcom BCM2835 PM:
   - Add support for the BCM2712 power management device
   - Introduce a hardware type identifier to distinguish SoC variants

  Congatec CGBC, KEMPLD, RSMU, Si476x:
   - Fix various kernel-doc warnings and correct struct member names

  DLN2:
   - Drop redundant USB device references and switch to managed
     resource allocations
   - Update bare 'unsigned' types to 'unsigned int'

  ENE KB3930:
   - Use the of_device_is_system_power_controller() wrapper

  EZX PCAP:
   - Avoid rescheduling after destroying the workqueue by switching
     to a device-managed workqueue
   - Drop redundant memory allocation error messages
   - Return directly instead of using empty goto statements

  Freescale i.MX25 TSADC:
   - Convert devicetree bindings from TXT to YAML format

  Freescale MC13xxx:
   - Fix a memory leak in subdevice platform data allocation by
     using devm_kmemdup()

  Intel LPC ICH:
   - Expose a software node for the GPIO controller cell to fix
     GPIO lookups

  Intel LPSS:
   - Add PCI IDs for the Intel Nova Lake-H platform

  Maxim MAX77620:
   - Convert devicetree bindings from TXT to YAML format
   - Document an optional I2C address for the MAX77663 RTC device

  Maxim MAX77705:
   - Make the max77705_pm_ops variable static to resolve a
     sparse warning

  MediaTek MT6397:
   - Correct the hardware CIDs for the MT6328, MT6331, and MT6332
     PMICs to allow proper driver binding

  ROHM BD71828:
   - Enable system wakeup via the power button

  ROHM BD72720:
   - Add a new compatible string for the ROHM BD73900 PMIC

  SpacemiT P1:
   - Drop the deprecated "vin-supply" property from the devicetree
     bindings
   - Add individual regulator supply properties to match actual
     hardware topology

  STMicroelectronics STPMIC1:
   - Attempt system shutdown a second time to handle transient I2C
     communication failures

  Viperboard:
   - Drop redundant USB device references"

* tag 'mfd-next-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (28 commits)
  mfd: core: Preserve OF node when ACPI handle is present
  mfd: ene-kb3930: Use of_device_is_system_power_controller() wrapper
  mfd: intel-lpss: Add Intel Nova Lake-H PCI IDs
  dt-bindings: mfd: max77620: Document optional RTC address for MAX77663
  dt-bindings: mfd: max77620: Convert to DT schema
  mfd: ezx-pcap: Avoid rescheduling after destroying workqueue
  mfd: ezx-pcap: Return directly instead of empty gotos
  mfd: ezx-pcap: Drop memory allocation error message
  mfd: bcm2835-pm: Add BCM2712 PM device support
  mfd: bcm2835-pm: Introduce SoC-specific type identifier
  dt-bindings: mfd: bd72720: Add ROHM BD73900
  mfd: si476x: Fix kernel-doc warnings
  mfd: rsmu: Remove a empty kernel-doc line
  mfd: kempld: Fix kernel-doc struct member names
  mfd: congatec: Fix kernel-doc struct member names
  dt-bindings: mfd: Convert fsl-imx25-tsadc.txt to yaml format
  mfd: viperboard: Drop redundant device reference
  mfd: dln2: Switch to managed resources and fix bare unsigned types
  mfd: macsmc: Wire up Apple SMC power driver
  mfd: mt6397: Properly fix CID of MT6328, MT6331 and MT6332
  ...
2026-04-20 11:31:01 -07:00
Linus Torvalds 99ef60d119 Merge tag 'usb-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB / Thunderbolt updates from Greg KH:
 "Here is the big set of USB and Thunderbolt changes for 7.1-rc1.

  Lots of little things in here, nothing major, just constant
  improvements, updates, and new features. Highlights are:

   - new USB power supply driver support.

     These changes did touch outside of drivers/usb/ but got acks from
     the relevant mantainers for them.

   - dts file updates and conversions

   - string function conversions into "safer" ones

   - new device quirks

   - xhci driver updates

   - usb gadget driver minor fixes

   - typec driver additions and updates

   - small number of thunderbolt driver changes

   - dwc3 driver updates and additions of new hardware support

   - other minor driver updates

  All of these have been in the linux-next tree for a while with no
  reported issues"

* tag 'usb-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (176 commits)
  usb: dwc3: starfive: Add JHB100 USB 2.0 DRD controller
  dt-bindings: usb: dwc3: add support for StarFive JHB100
  dt-bindings: usb: atmel,at91sam9rl-udc: convert to DT schema
  dt-bindings: usb: atmel,at91rm9200-udc: convert to DT schema
  dt-bindings: usb: generic-ehci: fix schema structure and add at91sam9g45 constraints
  dt-bindings: usb: generic-ohci: add AT91RM9200 OHCI binding support
  arm: dts: at91: remove unused #address-cells/#size-cells from sam9x60 udc node
  drivers/usb/host: Fix spelling error 'seperate' -> 'separate'
  usbip: tools: add hint when no exported devices are found
  USB: serial: iuu_phoenix: fix iuutool author name
  usb: gadget: f_ncm: validate minimum block_len in ncm_unwrap_ntb()
  usb: gadget: f_phonet: fix skb frags[] overflow in pn_rx_complete()
  usb: gadget: f_hid: Add missing error code
  usb: typec: cros_ec_ucsi: Load driver from OF and ACPI definitions
  dt-bindings: chrome: Add cros-ec-ucsi compatibility to typec binding
  USB: of: Simplify with scoped for each OF child loop
  usbip: validate number_of_packets in usbip_pack_ret_submit()
  usb: gadget: renesas_usb3: validate endpoint index in standard request handlers
  usb: core: config: reverse the size check of the SSP isoc endpoint descriptor
  usb: typec: ucsi: Set usb mode on partner change
  ...
2026-04-19 08:47:40 -07:00
Linus Torvalds 31b43c079f Merge tag 'soc-drivers-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC driver updates from Arnd Bergmann:
 "The driver updates again are all over the place with many minor fixes
  going into platform specific code. The most notable changes are:

   - Support for Microchip pic64gx system controllers
   - Work on cleaning up devicetree bindings for SoC drivers, and
     converting them into the new format
   - Lots of smaller changes for Qualcomm SoC drivers, including support
     for a number of newly supported chips
   - reset controller API cleanups and a new driver for Cix Sky1
   - Reworks of the Tegra PMC and CBB drivers, along with a change to
     how individual Tegra SoCs get selected in Kconfig and BPMP firmware
     driver updates including a refresh of the ABI header to match the
     version used by firmware
   - STM32 updates to the firewall bus driver and support for the debug
     bus through OP-TEE
   - SCMI firmware driver improvements for reliability, in particular
     for dealing with broken firmware interrupts
   - Memory driver updates for Tegra, and a patch to remove the unused
     Baikal T1 driver"

* tag 'soc-drivers-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (193 commits)
  firmware: arm_ffa: Use the correct buffer size during RXTX_MAP
  firmware: qcom: scm: Allow QSEECOM on Lenovo IdeaCentre Mini X
  clk: spear: fix resource leak in clk_register_vco_pll()
  reset: rzv2h-usb2phy: Add support for VBUS mux controller registration
  reset: rzv2h-usb2phy: Convert to regmap API
  dt-bindings: reset: renesas,rzv2h-usb2phy: Document RZ/G3E USB2PHY reset
  dt-bindings: reset: renesas,rzv2h-usb2phy: Add '#mux-state-cells' property
  soc: microchip: add mpfs gpio interrupt mux driver
  dt-bindings: soc: microchip: document PolarFire SoC's gpio interrupt mux
  gpio: mpfs: Add interrupt support
  soc: qcom: ubwc: add helpers to get programmable values
  soc: qcom: ubwc: add helper to get min_acc length
  firmware: qcom: scm: Register gunyah watchdog device
  soc: qcom: socinfo: Add SoC ID for SA8650P
  dt-bindings: arm: qcom,ids: Add SoC ID for SA8650P
  firmware: qcom: scm: Allow QSEECOM on Mahua CRD
  soc: qcom: wcnss: simplify allocation of req
  soc: qcom: pd-mapper: Add support for Eliza
  soc: qcom: aoss: compare against normalized cooling state
  soc: qcom: llcc: fix v1 SB syndrome register offset
  ...
2026-04-16 20:34:34 -07:00
Brian MakandLee Jones caa5a5d44d mfd: core: Preserve OF node when ACPI handle is present
Switch device_set_node to set_primary_fwnode, so that the ACPI fwnode
does not overwrite the of_node with NULL.

This allows MFD children with both OF nodes and ACPI handles to have OF
nodes again.

Cc: stable@vger.kernel.org
Fixes: 51e3b25709 ("mfd: core: Make use of device_set_node()")
Signed-off-by: Brian Mak <makb@juniper.net>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20260325223024.35992-1-makb@juniper.net
Signed-off-by: Lee Jones <lee@kernel.org>
2026-03-31 13:38:25 +01:00
Krzysztof KozlowskiandLee Jones 70910aadff mfd: ene-kb3930: Use of_device_is_system_power_controller() wrapper
Instead of checking for exact device node property, use the
of_device_is_system_power_controller() wrapper.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://patch.msgid.link/20260323092052.64684-2-krzysztof.kozlowski@oss.qualcomm.com
Signed-off-by: Lee Jones <lee@kernel.org>
2026-03-31 10:48:30 +01:00
Amit Sunil DhamneandGreg Kroah-Hartman b422f7c072 mfd: max77759: add register bitmasks and modify irq configs for charger
Add register bitmasks for charger function.
In addition split the charger IRQs further such that each bit represents
an IRQ downstream of charger regmap irq chip. In addition populate the
ack_base to offload irq ack to the regmap irq chip framework.

Signed-off-by: Amit Sunil Dhamne <amitsd@google.com>
Reviewed-by: André Draszik <andre.draszik@linaro.org>
Link: https://patch.msgid.link/20260325-max77759-charger-v9-3-4486dd297adc@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-03-30 16:58:33 +02:00
Saranya GopalandLee Jones d6e0ef4468 mfd: intel-lpss: Add Intel Nova Lake-H PCI IDs
Add Intel Nova Lake-H LPSS PCI IDs.

Signed-off-by: Saranya Gopal <saranya.gopal@intel.com>
Co-developed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20260313100337.3471-1-ilpo.jarvinen@linux.intel.com
Signed-off-by: Lee Jones <lee@kernel.org>
2026-03-25 14:17:46 +00:00
Krzysztof KozlowskiandLee Jones 30eedf2446 mfd: ezx-pcap: Avoid rescheduling after destroying workqueue
Driver allocates workqueue and then registers additional interrupt
handler with devm interface.  This means that device removal will not
use a reversed order, but first destroy workqueue and then, via devm
release handlers, free the interrupt.

The interrupt handler registered with devm does not directly
use/schedule work items on the workqueue and the remove() function
correctly removes other IRQs handlers, however the code mixing devm and
non-devm interfaces is difficult to analyze and read.

Make the code flow much more obvious by using devm interface for
allocating the workqueue, so it will be freed with the rest of devm
resources.

Change is not equivalent in the workqueue itself: use non-legacy API
which does not set (__WQ_LEGACY | WQ_MEM_RECLAIM).  The workqueue is
used to update device registers, thus there is no point to run it for
memory reclaim.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20260305-workqueue-devm-v2-9-66a38741c652@oss.qualcomm.com
Signed-off-by: Lee Jones <lee@kernel.org>
2026-03-25 12:45:59 +00:00
Krzysztof KozlowskiandLee Jones ef5a54c542 mfd: ezx-pcap: Return directly instead of empty gotos
Code is easier to read if empty error paths simply return, instead of
jumping to empty label doing only "return ret".

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20260305-workqueue-devm-v2-8-66a38741c652@oss.qualcomm.com
Signed-off-by: Lee Jones <lee@kernel.org>
2026-03-25 12:45:55 +00:00
Krzysztof KozlowskiandLee Jones fa9ccb6b7f mfd: ezx-pcap: Drop memory allocation error message
Drivers should not print error messages on memory allocation failures,
because core already does it.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20260305-workqueue-devm-v2-7-66a38741c652@oss.qualcomm.com
Signed-off-by: Lee Jones <lee@kernel.org>
2026-03-25 12:45:52 +00:00
Phil ElwellandLee Jones 44fb5d7b9d mfd: bcm2835-pm: Add BCM2712 PM device support
The BCM2712 SoC includes a power management block that serves as the
power domain for the V3D graphics block. Unlike other PM blocks in
the BCM2835 family, it does not feature an ASB register space.

Conditionally register the PM device depending on the SoC variant.

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Co-developed-by: Stanimir Varbanov <svarbanov@suse.de>
Signed-off-by: Stanimir Varbanov <svarbanov@suse.de>
Signed-off-by: Andrea della Porta <andrea.porta@suse.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://patch.msgid.link/c0b5793868f138bf5c928a12b2763d3e183e2e59.1772839224.git.andrea.porta@suse.com
Signed-off-by: Lee Jones <lee@kernel.org>
2026-03-25 12:45:49 +00:00
Phil ElwellandLee Jones fe0e422cbc mfd: bcm2835-pm: Introduce SoC-specific type identifier
Power management blocks across the BCM2835 family share a common
base but require variant-specific handling. For instance, the
BCM2712 lacks ASB register space, yet it manages the power domain
for the V3D graphics block.

Add a hardware type identifier to the driver's private data. This
allows the driver to distinguish between SoC models and implement
custom quirks or features as needed.

Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Co-developed-by: Stanimir Varbanov <svarbanov@suse.de>
Signed-off-by: Stanimir Varbanov <svarbanov@suse.de>
Signed-off-by: Andrea della Porta <andrea.porta@suse.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://patch.msgid.link/c4bb218654e91f312a01b419d3d408e5131f7673.1772839224.git.andrea.porta@suse.com
Signed-off-by: Lee Jones <lee@kernel.org>
2026-03-25 12:45:45 +00:00
Johan HovoldandLee Jones 1a408a6778 mfd: viperboard: Drop redundant device reference
Driver core holds a reference to the USB interface and its parent USB
device while the interface is bound to a driver and there is no need to
take additional references unless the structures are needed after
disconnect.

Drop the redundant device reference to reduce cargo culting, make it
easier to spot drivers where an extra reference is needed, and reduce
the risk of memory leaks when drivers fail to release it.

Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20260305104051.15727-1-johan@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
2026-03-25 12:45:18 +00:00
Subhash RawatandLee Jones a2753f06e3 mfd: dln2: Switch to managed resources and fix bare unsigned types
Convert dln2_probe and dln2_setup_rx_urbs to use devm_kzalloc() and
devm_kmalloc() respectively. This simplifies resource management by
allowing the removal of manual kfree() calls in dln2_free() and
dln2_free_rx_urbs().

Additionally, update bare 'unsigned' types to 'unsigned int' to satisfy
checkpatch.pl warnings and comply with the Linux kernel coding style.

Signed-off-by: Subhash Rawat <rawatsubhash02@gmail.com>
Link: https://patch.msgid.link/20260303183236.574940-1-rawatsubhash02@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
2026-03-25 12:45:15 +00:00
Hector MartinandLee Jones 9abc081c94 mfd: macsmc: Wire up Apple SMC power driver
Add the cell for the macsmc-power driver so it is probed by the
MFD core.

Signed-off-by: Hector Martin <marcan@marcan.st>
Reviewed-by: Neal Gompa <neal@gompa.dev>
Reviewed-by: Sven Peter <sven@kernel.org>
Signed-off-by: Michael Reeves <michael.reeves077@gmail.com>
Link: https://patch.msgid.link/20260217-b4-macsmc-power-v7-2-4a4d63664362@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
2026-03-25 12:45:13 +00:00
Akari TsuyukusaandLee Jones a09506820a mfd: mt6397: Properly fix CID of MT6328, MT6331 and MT6332
CIDs set for MT6328, MT6331 and MT6332 are not appropriate.
Many Android downstream kernels define CID as below,

MT6328:

    #define PMIC6328_E1_CID_CODE    0x2810
    #define PMIC6328_E2_CID_CODE    0x2820
    #define PMIC6328_E3_CID_CODE    0x2830

MT6331/MT6332:

    #define PMIC6331_E1_CID_CODE    0x3110
    #define PMIC6331_E2_CID_CODE    0x3120
    #define PMIC6331_E3_CID_CODE    0x3130

    #define PMIC6332_E1_CID_CODE    0x3210
    #define PMIC6332_E2_CID_CODE    0x3220
    #define PMIC6332_E3_CID_CODE    0x3230

The current configuration incorrectly uses the revision code as the CID.
Therefore, the driver cannot detect the same PMIC of different revisions.
(E1/E2 for MT6328, E1/E3 for MT6331/MT6332)
Based on these, the CID of MT6328, MT6331 and MT6332 should be corrected.

Additionally, the incorrect MT6331/MT6332 CID overlaps with the MT6320's
actual CID:

    #define PMIC6320_E1_CID_CODE    0x1020
    #define PMIC6320_E2_CID_CODE    0x2020

This causes a conflict in the switch-case statement of mt6397-irq.c,
this prevents adding support for MT6320.

Signed-off-by: Akari Tsuyukusa <akkun11.open@gmail.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://patch.msgid.link/20260302140045.651727-1-akkun11.open@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
2026-03-25 12:45:09 +00:00
Bartosz GolaszewskiandLee Jones 0735e3007c mfd: lpc_ich: Expose the GPIO controller cell's software node
One of the users of this driver - meraki-mx100 - abuses the software
node API by setting up a dummy software node without any logical link to
this GPIO controller and uses the fact that the GPIO core matches the
controller's label against the swnode's name to make the lookup work.

We want to remove this behavior from GPIOLIB in favor of actual matching
of firmware nodes but that would break this user. To facilitate that:
create a software node for the GPIO controller cell and expose its
address in the provided MFD header.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20260218-meraki-swnodes-v2-1-92c521da241c@oss.qualcomm.com
Signed-off-by: Lee Jones <lee@kernel.org>
2026-03-25 12:45:01 +00:00
Manikandan MuralidharanandLee Jones 239cd6a417 mfd: atmel-hlcdc: Fetch LVDS PLL clock for LVDS display
The XLCDC IP supports parallel RGB, MIPI DSI and LVDS Display.
The LCD Generic clock (sys_clk) is used for Parallel RGB and MIPI
displays, while the LVDS PLL clock (lvds_pll_clk) is used for LVDS
displays.Since both the clocks cannot co-exist together in the DT
for a given display, this patch tries sys_clk first (RGB/MIPI),
fallback to lvds_pll_clk (LVDS).

Signed-off-by: Manikandan Muralidharan <manikandan.m@microchip.com>
Signed-off-by: Dharma Balasubiramani <dharma.b@microchip.com>
Link: https://patch.msgid.link/20260223101920.284697-2-manikandan.m@microchip.com
Signed-off-by: Lee Jones <lee@kernel.org>
2026-03-25 12:44:57 +00:00
Johan HovoldandLee Jones c2b06b133c mfd: dln2: Drop redundant device reference
Driver core holds a reference to the USB interface and its parent USB
device while the interface is bound to a driver and there is no need to
take additional references unless the structures are needed after
disconnect.

Drop the redundant device reference to reduce cargo culting, make it
easier to spot drivers where an extra reference is needed, and reduce
the risk of memory leaks when drivers fail to release it.

Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20260305130358.24681-1-johan@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
2026-03-25 12:44:54 +00:00
Krzysztof KozlowskiandLee Jones f385ec3259 mfd: max77705: Make max77705_pm_ops variable static
File-scope 'max77705_pm_ops' is not used outside of this unit, so make
it static to silence sparse warning:

  max77705.c:160:1: warning: symbol 'max77705_pm_ops' was not declared. Should it be static?

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://patch.msgid.link/20260216110432.160084-2-krzysztof.kozlowski@oss.qualcomm.com
Signed-off-by: Lee Jones <lee@kernel.org>
2026-03-25 12:44:51 +00:00
Andreas KemnadeandLee Jones eaa0a41774 mfd: rohm-bd71828: Enable wakeup via power button
It is normally expected to get out of deeper power saving states by
pressing the power button, so enable wakeup for it.

Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Acked-by: Matti Vaittinen <mazziesaccount@gmail.com>
Link: https://patch.msgid.link/20260206093757.573377-1-andreas@kemnade.info
Signed-off-by: Lee Jones <lee@kernel.org>
2026-03-25 12:44:49 +00:00
Marek VasutandLee Jones ffdc5c51f8 mfd: stpmic1: Attempt system shutdown twice in case PMIC is confused
Attempt to shut down again, in case the first attempt failed.
The STPMIC1 might get confused and the first regmap_update_bits()
returns with -ETIMEDOUT / -110 . If that or similar transient
failure occurs, try to shut down again. If the second attempt
fails, there is some bigger problem, report it to user.

Cc: stable@vger.kernel.org
Fixes: 6e9df38f35 ("mfd: stpmic1: Add PMIC poweroff via sys-off handler")
Signed-off-by: Marek Vasut <marex@nabladev.com>
Link: https://patch.msgid.link/20260122111423.62591-1-marex@nabladev.com
Signed-off-by: Lee Jones <lee@kernel.org>
2026-03-25 12:44:46 +00:00
Abdun NihaalandLee Jones a5a65a7fb2 mfd: mc13xxx-core: Fix memory leak in mc13xxx_add_subdevice_pdata()
The memory allocated for cell.name using kmemdup() is not freed when
mfd_add_devices() fails. Fix that by using devm_kmemdup().

Fixes: 8e00593557 ("mfd: Add mc13892 support to mc13xxx")
Signed-off-by: Abdun Nihaal <nihaal@cse.iitm.ac.in>
Link: https://patch.msgid.link/20260120102622.66921-1-nihaal@cse.iitm.ac.in
Signed-off-by: Lee Jones <lee@kernel.org>
2026-03-25 12:44:43 +00:00
Maciej StrozekandMark Brown a6fe20d67d mfd: cs42l43: Add support for the B variant
Introducing CS42L43B codec, a variant of CS42L43 which can be driven by
the same driver.

Changes in CS42L43 driver specific for CS42L43B:
- Decimator 1 and 2 are dedicated to ADC, can't be selected for PDM
- Decimators 3 and 4 are connected to PDM1
- Added Decimator 5 and 6 for PDM2
- Supports SoundWire Clock Gearing
- Updated ROM requiring no patching
- Reduced RAM space
- Each ISRC has 4 decimators now

Signed-off-by: Maciej Strozek <mstrozek@opensource.cirrus.com>
Acked-by: Lee Jones <lee@kernel.org>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://patch.msgid.link/20260306152829.3130530-4-mstrozek@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-03-09 10:29:32 +00:00
Krzysztof KozlowskiandKrzysztof Kozlowski a2be37eedb firmware: exynos-acpm: Drop fake 'const' on handle pointer
All the functions operating on the 'handle' pointer are claiming it is a
pointer to const thus they should not modify the handle.  In fact that's
a false statement, because first thing these functions do is drop the
cast to const with container_of:

  struct acpm_info *acpm = handle_to_acpm_info(handle);

And with such cast the handle is easily writable with simple:

  acpm->handle.ops.pmic_ops.read_reg = NULL;

The code is not correct logically, either, because functions like
acpm_get_by_node() and acpm_handle_put() are meant to modify the handle
reference counting, thus they must modify the handle.  Modification here
happens anyway, even if the reference counting is stored in the
container which the handle is part of.

The code does not have actual visible bug, but incorrect 'const'
annotations could lead to incorrect compiler decisions.

Fixes: a88927b534 ("firmware: add Exynos ACPM protocol driver")
Cc: stable@vger.kernel.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://patch.msgid.link/20260224104203.42950-2-krzysztof.kozlowski@oss.qualcomm.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2026-02-28 15:47:03 +01:00