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linux/drivers/reset/Kconfig
Linus Torvalds 2d945dde7f This is the usual collection of primarily clk driver updates. The big part of 
the diff is all the new Qualcomm clk drivers added for a few SoCs they're
 working on. The other two vendors with significant work this cycle are Renesas
 and Amlogic. Renesas adds a bunch of clks to existing drivers and supports some
 new SoCs while Amlogic is starting a significant refactoring to simplify their
 code.
 
 The core framework gained a pair of helpers to get the 'struct device' or
 'struct device_node' associated with a 'struct clk_hw'. Some associated KUnit
 tests were added for these simple helpers as well. Beyond that core change
 there are lots of little fixes throughout the clk drivers for the stuff we see
 every day, wrong clk driver data that affects tree topology or supported
 frequencies, etc. They're not found until the clks are actually used by some
 consumer device driver.
 
 New Drivers:
  - Global, display, gpu, video, camera, tcsr, and rpmh clock controller for the
    Qualcomm Milos SoC
  - Camera, display, GPU, and video clock controllers for Qualcomm QCS615
  - Video clock controller driver for Qualcomm SM6350
  - Camera clock controller driver for Qualcomm SC8180X
  - I3C clocks and resets on Renesas RZ/G3E
  - Expanded Serial Peripheral Interface (xSPI) clocks and resets on
    Renesas RZ/V2H(P) and RZ/V2N
  - SPI (RSPI) clocks and resets on Renesas RZ/V2H(P)
  - SDHI and I2C clocks on Renesas RZ/T2H and RZ/N2H
  - Ethernet clocks and resets on Renesas RZ/G3E
  - Initial support for the Renesas RZ/T2H (R9A09G077) and RZ/N2H
    (R9A09G087) SoCs
  - Ethernet clocks and resets on Renesas RZ/V2H and RZ/V2N
  - Timer, I2C, watchdog, GPU, and USB2.0 clocks and resets on Renesas
    RZ/V2N
 
 Updates:
  - Support atomic PWMs in the PWM clk driver
  - clk_hw_get_dev() and clk_hw_get_of_node() helpers
  - Replace round_rate() with determine_rate() in various clk drivers
  - Convert clk DT bindings to DT schema format for DT validation
  - Various clk driver cleanups and refactorings from static analysis tools and
    possibly real humans
  - A lot of little fixes here and there to things like clk tree topology,
    missing frequencies, flagging clks as critical, etc. The full details are in
    the commits and sub-tree merge logs
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "This is the usual collection of primarily clk driver updates.

  The big part of the diff is all the new Qualcomm clk drivers added for
  a few SoCs they're working on. The other two vendors with significant
  work this cycle are Renesas and Amlogic. Renesas adds a bunch of clks
  to existing drivers and supports some new SoCs while Amlogic is
  starting a significant refactoring to simplify their code.

  The core framework gained a pair of helpers to get the 'struct device'
  or 'struct device_node' associated with a 'struct clk_hw'. Some
  associated KUnit tests were added for these simple helpers as well.

  Beyond that core change there are lots of little fixes throughout the
  clk drivers for the stuff we see every day, wrong clk driver data that
  affects tree topology or supported frequencies, etc. They're not found
  until the clks are actually used by some consumer device driver.

  New Drivers:
   - Global, display, gpu, video, camera, tcsr, and rpmh clock
     controller for the Qualcomm Milos SoC
   - Camera, display, GPU, and video clock controllers for Qualcomm
     QCS615
   - Video clock controller driver for Qualcomm SM6350
   - Camera clock controller driver for Qualcomm SC8180X
   - I3C clocks and resets on Renesas RZ/G3E
   - Expanded Serial Peripheral Interface (xSPI) clocks and resets on
     Renesas RZ/V2H(P) and RZ/V2N
   - SPI (RSPI) clocks and resets on Renesas RZ/V2H(P)
   - SDHI and I2C clocks on Renesas RZ/T2H and RZ/N2H
   - Ethernet clocks and resets on Renesas RZ/G3E
   - Initial support for the Renesas RZ/T2H (R9A09G077) and RZ/N2H
     (R9A09G087) SoCs
   - Ethernet clocks and resets on Renesas RZ/V2H and RZ/V2N
   - Timer, I2C, watchdog, GPU, and USB2.0 clocks and resets on Renesas
     RZ/V2N

  Updates:
   - Support atomic PWMs in the PWM clk driver
   - clk_hw_get_dev() and clk_hw_get_of_node() helpers
   - Replace round_rate() with determine_rate() in various clk drivers
   - Convert clk DT bindings to DT schema format for DT validation
   - Various clk driver cleanups and refactorings from static analysis
     tools and possibly real humans
   - A lot of little fixes here and there to things like clk tree
     topology, missing frequencies, flagging clks as critical, etc"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (216 commits)
  clk: clocking-wizard: Fix the round rate handling for versal
  clk: Fix typos
  clk: spacemit: ccu_pll: fix error return value in recalc_rate callback
  clk: tegra: periph: Make tegra_clk_periph_ops static
  clk: tegra: periph: Fix error handling and resolve unsigned compare warning
  clk: imx: scu: convert from round_rate() to determine_rate()
  clk: imx: pllv4: convert from round_rate() to determine_rate()
  clk: imx: pllv3: convert from round_rate() to determine_rate()
  clk: imx: pllv2: convert from round_rate() to determine_rate()
  clk: imx: pll14xx: convert from round_rate() to determine_rate()
  clk: imx: pfd: convert from round_rate() to determine_rate()
  clk: imx: frac-pll: convert from round_rate() to determine_rate()
  clk: imx: fracn-gppll: convert from round_rate() to determine_rate()
  clk: imx: fixup-div: convert from round_rate() to determine_rate()
  clk: imx: cpu: convert from round_rate() to determine_rate()
  clk: imx: busy: convert from round_rate() to determine_rate()
  clk: imx: composite-93: remove round_rate() in favor of determine_rate()
  clk: imx: composite-8m: remove round_rate() in favor of determine_rate()
  clk: qcom: Remove redundant pm_runtime_mark_last_busy() calls
  clk: imx: Remove redundant pm_runtime_mark_last_busy() calls
  ...
2025-07-31 13:36:27 -07:00

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# SPDX-License-Identifier: GPL-2.0-only
config ARCH_HAS_RESET_CONTROLLER
bool
menuconfig RESET_CONTROLLER
bool "Reset Controller Support"
default y if ARCH_HAS_RESET_CONTROLLER
help
Generic Reset Controller support.
This framework is designed to abstract reset handling of devices
via GPIOs or SoC-internal reset controller modules.
If unsure, say no.
if RESET_CONTROLLER
config RESET_A10SR
tristate "Altera Arria10 System Resource Reset"
depends on MFD_ALTERA_A10SR || COMPILE_TEST
help
This option enables support for the external reset functions for
peripheral PHYs on the Altera Arria10 System Resource Chip.
config RESET_ATH79
bool "AR71xx Reset Driver" if COMPILE_TEST
default ATH79
help
This enables the ATH79 reset controller driver that supports the
AR71xx SoC reset controller.
config RESET_AXS10X
bool "AXS10x Reset Driver" if COMPILE_TEST
default ARC_PLAT_AXS10X
help
This enables the reset controller driver for AXS10x.
config RESET_BCM6345
bool "BCM6345 Reset Controller"
depends on BMIPS_GENERIC || COMPILE_TEST
default BMIPS_GENERIC
help
This enables the reset controller driver for BCM6345 SoCs.
config RESET_BERLIN
tristate "Berlin Reset Driver"
depends on ARCH_BERLIN || COMPILE_TEST
default m if ARCH_BERLIN
help
This enables the reset controller driver for Marvell Berlin SoCs.
config RESET_BRCMSTB
tristate "Broadcom STB reset controller"
depends on ARCH_BRCMSTB || ARCH_BCM2835 || COMPILE_TEST
default ARCH_BRCMSTB || ARCH_BCM2835
help
This enables the reset controller driver for Broadcom STB SoCs using
a SUN_TOP_CTRL_SW_INIT style controller.
config RESET_BRCMSTB_RESCAL
tristate "Broadcom STB RESCAL reset controller"
depends on HAS_IOMEM
depends on ARCH_BRCMSTB || ARCH_BCM2835 || COMPILE_TEST
default ARCH_BRCMSTB || ARCH_BCM2835
help
This enables the RESCAL reset controller for SATA, PCIe0, or PCIe1 on
BCM7216 or the BCM2712.
config RESET_EYEQ
bool "Mobileye EyeQ reset controller"
depends on MACH_EYEQ5 || MACH_EYEQ6H || COMPILE_TEST
select AUXILIARY_BUS
default MACH_EYEQ5 || MACH_EYEQ6H
help
This enables the Mobileye EyeQ reset controller, used in EyeQ5, EyeQ6L
and EyeQ6H SoCs.
It has one or more domains, with a varying number of resets in each.
Registers are located in a shared register region called OLB. EyeQ6H
has multiple reset instances.
config RESET_GPIO
tristate "GPIO reset controller"
depends on GPIOLIB
help
This enables a generic reset controller for resets attached via
GPIOs. Typically for OF platforms this driver expects "reset-gpios"
property.
If compiled as module, it will be called reset-gpio.
config RESET_HSDK
bool "Synopsys HSDK Reset Driver"
depends on HAS_IOMEM
depends on ARC_SOC_HSDK || COMPILE_TEST
help
This enables the reset controller driver for HSDK board.
config RESET_IMX_SCU
tristate "i.MX8Q Reset Driver"
depends on IMX_SCU && HAVE_ARM_SMCCC
depends on (ARM64 && ARCH_MXC) || COMPILE_TEST
help
This enables the reset controller driver for i.MX8QM/i.MX8QXP
config RESET_IMX7
tristate "i.MX7/8 Reset Driver"
depends on HAS_IOMEM
depends on SOC_IMX7D || (ARM64 && ARCH_MXC) || COMPILE_TEST
default y if SOC_IMX7D
select MFD_SYSCON
help
This enables the reset controller driver for i.MX7 SoCs.
config RESET_IMX8MP_AUDIOMIX
tristate "i.MX8MP AudioMix Reset Driver"
depends on ARCH_MXC || COMPILE_TEST
select AUXILIARY_BUS
default CLK_IMX8MP
help
This enables the reset controller driver for i.MX8MP AudioMix
config RESET_INTEL_GW
bool "Intel Reset Controller Driver"
depends on X86 || COMPILE_TEST
depends on OF && HAS_IOMEM
select REGMAP_MMIO
help
This enables the reset controller driver for Intel Gateway SoCs.
Say Y to control the reset signals provided by reset controller.
Otherwise, say N.
config RESET_K210
bool "Reset controller driver for Canaan Kendryte K210 SoC"
depends on (SOC_CANAAN_K210 || COMPILE_TEST) && OF
select MFD_SYSCON
default SOC_CANAAN_K210
help
Support for the Canaan Kendryte K210 RISC-V SoC reset controller.
Say Y if you want to control reset signals provided by this
controller.
config RESET_K230
tristate "Reset controller driver for Canaan Kendryte K230 SoC"
depends on ARCH_CANAAN || COMPILE_TEST
depends on OF
help
Support for the Canaan Kendryte K230 RISC-V SoC reset controller.
Say Y if you want to control reset signals provided by this
controller.
config RESET_LANTIQ
bool "Lantiq XWAY Reset Driver" if COMPILE_TEST
default SOC_TYPE_XWAY
help
This enables the reset controller driver for Lantiq / Intel XWAY SoCs.
config RESET_LPC18XX
bool "LPC18xx/43xx Reset Driver" if COMPILE_TEST
default ARCH_LPC18XX
help
This enables the reset controller driver for NXP LPC18xx/43xx SoCs.
config RESET_MCHP_SPARX5
tristate "Microchip Sparx5 reset driver"
depends on ARCH_SPARX5 || SOC_LAN966 || MCHP_LAN966X_PCI || COMPILE_TEST
default y if SPARX5_SWITCH
select MFD_SYSCON
help
This driver supports switch core reset for the Microchip Sparx5 SoC.
config RESET_NPCM
bool "NPCM BMC Reset Driver" if COMPILE_TEST
default ARCH_NPCM
select AUXILIARY_BUS
help
This enables the reset controller driver for Nuvoton NPCM
BMC SoCs.
config RESET_NUVOTON_MA35D1
bool "Nuvoton MA35D1 Reset Driver"
depends on ARCH_MA35 || COMPILE_TEST
default ARCH_MA35
help
This enables the reset controller driver for Nuvoton MA35D1 SoC.
config RESET_PISTACHIO
bool "Pistachio Reset Driver"
depends on MIPS || COMPILE_TEST
help
This enables the reset driver for ImgTec Pistachio SoCs.
config RESET_POLARFIRE_SOC
bool "Microchip PolarFire SoC (MPFS) Reset Driver"
depends on MCHP_CLK_MPFS
select AUXILIARY_BUS
default MCHP_CLK_MPFS
help
This driver supports peripheral reset for the Microchip PolarFire SoC
config RESET_QCOM_AOSS
tristate "Qcom AOSS Reset Driver"
depends on ARCH_QCOM || COMPILE_TEST
help
This enables the AOSS (always on subsystem) reset driver
for Qualcomm SDM845 SoCs. Say Y if you want to control
reset signals provided by AOSS for Modem, Venus, ADSP,
GPU, Camera, Wireless, Display subsystem. Otherwise, say N.
config RESET_QCOM_PDC
tristate "Qualcomm PDC Reset Driver"
depends on ARCH_QCOM || COMPILE_TEST
help
This enables the PDC (Power Domain Controller) reset driver
for Qualcomm Technologies Inc SDM845 SoCs. Say Y if you want
to control reset signals provided by PDC for Modem, Compute,
Display, GPU, Debug, AOP, Sensors, Audio, SP and APPS.
config RESET_RASPBERRYPI
tristate "Raspberry Pi 4 Firmware Reset Driver"
depends on RASPBERRYPI_FIRMWARE || (RASPBERRYPI_FIRMWARE=n && COMPILE_TEST)
default USB_XHCI_PCI
help
Raspberry Pi 4's co-processor controls some of the board's HW
initialization process, but it's up to Linux to trigger it when
relevant. This driver provides a reset controller capable of
interfacing with RPi4's co-processor and model these firmware
initialization routines as reset lines.
config RESET_RZG2L_USBPHY_CTRL
tristate "Renesas RZ/G2L USBPHY control driver"
depends on ARCH_RZG2L || COMPILE_TEST
help
Support for USBPHY Control found on RZ/G2L family. It mainly
controls reset and power down of the USB/PHY.
config RESET_RZV2H_USB2PHY
tristate "Renesas RZ/V2H(P) (and similar SoCs) USB2PHY Reset driver"
depends on ARCH_RENESAS || COMPILE_TEST
help
Support for USB2PHY Port reset Control found on the RZ/V2H(P) SoC
(and similar SoCs).
config RESET_SCMI
tristate "Reset driver controlled via ARM SCMI interface"
depends on ARM_SCMI_PROTOCOL || COMPILE_TEST
default ARM_SCMI_PROTOCOL
help
This driver provides support for reset signal/domains that are
controlled by firmware that implements the SCMI interface.
This driver uses SCMI Message Protocol to interact with the
firmware controlling all the reset signals.
config RESET_SIMPLE
bool "Simple Reset Controller Driver" if COMPILE_TEST || EXPERT
default ARCH_ASPEED || ARCH_BCMBCA || ARCH_BITMAIN || ARCH_REALTEK || ARCH_SOPHGO || ARCH_STM32 || (ARCH_INTEL_SOCFPGA && ARM64) || ARCH_SUNXI || ARC
depends on HAS_IOMEM
help
This enables a simple reset controller driver for reset lines that
that can be asserted and deasserted by toggling bits in a contiguous,
exclusive register space.
Currently this driver supports:
- Altera SoCFPGAs
- ASPEED BMC SoCs
- Bitmain BM1880 SoC
- Realtek SoCs
- RCC reset controller in STM32 MCUs
- Allwinner SoCs
- SiFive FU740 SoCs
- Sophgo SoCs
config RESET_SOCFPGA
bool "SoCFPGA Reset Driver" if COMPILE_TEST && (!ARM || !ARCH_INTEL_SOCFPGA)
default ARM && ARCH_INTEL_SOCFPGA
select RESET_SIMPLE
help
This enables the reset driver for the SoCFPGA ARMv7 platforms. This
driver gets initialized early during platform init calls.
config RESET_SPACEMIT
tristate "SpacemiT reset driver"
depends on ARCH_SPACEMIT || COMPILE_TEST
select AUXILIARY_BUS
default ARCH_SPACEMIT
help
This enables the reset controller driver for SpacemiT SoCs,
including the K1.
config RESET_SUNPLUS
bool "Sunplus SoCs Reset Driver" if COMPILE_TEST
default ARCH_SUNPLUS
help
This enables the reset driver support for Sunplus SoCs.
The reset lines that can be asserted and deasserted by toggling bits
in a contiguous, exclusive register space. The register is HIWORD_MASKED,
which means each register holds 16 reset lines.
config RESET_SUNXI
bool "Allwinner SoCs Reset Driver" if COMPILE_TEST && !ARCH_SUNXI
default ARCH_SUNXI
select RESET_SIMPLE
help
This enables the reset driver for Allwinner SoCs.
config RESET_TH1520
tristate "T-HEAD TH1520 reset controller"
depends on ARCH_THEAD || COMPILE_TEST
select REGMAP_MMIO
help
This driver provides support for the T-HEAD TH1520 SoC reset controller,
which manages hardware reset lines for SoC components such as the GPU.
Enable this option if you need to control hardware resets on TH1520-based
systems.
config RESET_TI_SCI
tristate "TI System Control Interface (TI-SCI) reset driver"
depends on TI_SCI_PROTOCOL || (COMPILE_TEST && TI_SCI_PROTOCOL=n)
help
This enables the reset driver support over TI System Control Interface
available on some new TI's SoCs. If you wish to use reset resources
managed by the TI System Controller, say Y here. Otherwise, say N.
config RESET_TI_SYSCON
tristate "TI SYSCON Reset Driver"
depends on HAS_IOMEM
select MFD_SYSCON
help
This enables the reset driver support for TI devices with
memory-mapped reset registers as part of a syscon device node. If
you wish to use the reset framework for such memory-mapped devices,
say Y here. Otherwise, say N.
config RESET_TI_TPS380X
tristate "TI TPS380x Reset Driver"
select GPIOLIB
help
This enables the reset driver support for TI TPS380x devices. If
you wish to use the reset framework for such devices, say Y here.
Otherwise, say N.
config RESET_TN48M_CPLD
tristate "Delta Networks TN48M switch CPLD reset controller"
depends on MFD_TN48M_CPLD || COMPILE_TEST
default MFD_TN48M_CPLD
help
This enables the reset controller driver for the Delta TN48M CPLD.
It provides reset signals for Armada 7040 and 385 SoC-s, Alleycat 3X
switch MAC-s, Alaska OOB ethernet PHY, Quad Alaska ethernet PHY-s and
Microchip PD69200 PoE PSE controller.
This driver can also be built as a module. If so, the module will be
called reset-tn48m.
config RESET_UNIPHIER
tristate "Reset controller driver for UniPhier SoCs"
depends on ARCH_UNIPHIER || COMPILE_TEST
depends on OF && MFD_SYSCON
default ARCH_UNIPHIER
help
Support for reset controllers on UniPhier SoCs.
Say Y if you want to control reset signals provided by System Control
block, Media I/O block, Peripheral Block.
config RESET_UNIPHIER_GLUE
tristate "Reset driver in glue layer for UniPhier SoCs"
depends on (ARCH_UNIPHIER || COMPILE_TEST) && OF
default ARCH_UNIPHIER
select RESET_SIMPLE
help
Support for peripheral core reset included in its own glue layer
on UniPhier SoCs. Say Y if you want to control reset signals
provided by the glue layer.
config RESET_ZYNQ
bool "ZYNQ Reset Driver" if COMPILE_TEST
default ARCH_ZYNQ
help
This enables the reset controller driver for Xilinx Zynq SoCs.
config RESET_ZYNQMP
bool "ZYNQMP Reset Driver" if COMPILE_TEST
default ARCH_ZYNQMP
help
This enables the reset controller driver for Xilinx ZynqMP SoCs.
source "drivers/reset/amlogic/Kconfig"
source "drivers/reset/starfive/Kconfig"
source "drivers/reset/sti/Kconfig"
source "drivers/reset/hisilicon/Kconfig"
source "drivers/reset/tegra/Kconfig"
endif
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