1 # SPDX-License-Identifier: GPL-2.0
6 The <linux/clk.h> calls support software clock gating and
7 thus are a key power management tool on many systems.
9 config HAVE_CLK_PREPARE
12 config HAVE_LEGACY_CLK # TODO: Remove once all legacy users are migrated
16 Select this option when the clock API in <linux/clk.h> is implemented
17 by platform/architecture code. This method is deprecated. Modern
18 code should select COMMON_CLK instead and not define a custom
22 bool "Common Clock Framework"
23 depends on !HAVE_LEGACY_CLK
24 select HAVE_CLK_PREPARE
28 The common clock framework is a single definition of struct
29 clk, useful across many platforms, as well as an
30 implementation of the clock API in include/linux/clk.h.
31 Architectures utilizing the common struct clk should select
36 config COMMON_CLK_WM831X
37 tristate "Clock driver for WM831x/2x PMICs"
40 Supports the clocking subsystem of the WM831x/2x series of
41 PMICs from Wolfson Microelectronics.
43 source "drivers/clk/versatile/Kconfig"
46 bool "PLL Driver for HSDK platform"
47 depends on ARC_SOC_HSDK || COMPILE_TEST
50 This driver supports the HSDK core, system, ddr, tunnel and hdmi PLLs
54 tristate "Ti LMK04832 JESD204B Compliant Clock Jitter Cleaner"
58 Say yes here to build support for Texas Instruments' LMK04832 Ultra
59 Low-Noise JESD204B Compliant Clock Jitter Cleaner With Dual Loop PLLs
61 config COMMON_CLK_APPLE_NCO
62 tristate "Clock driver for Apple SoC NCOs"
63 depends on ARCH_APPLE || COMPILE_TEST
66 This driver supports NCO (Numerically Controlled Oscillator) blocks
67 found on Apple SoCs such as t8103 (M1). The blocks are typically
68 generators of audio clocks.
70 config COMMON_CLK_MAX77686
71 tristate "Clock driver for Maxim 77620/77686/77802 MFD"
72 depends on MFD_MAX77686 || MFD_MAX77620 || COMPILE_TEST
74 This driver supports Maxim 77620/77686/77802 crystal oscillator
77 config COMMON_CLK_MAX9485
78 tristate "Maxim 9485 Programmable Clock Generator"
81 This driver supports Maxim 9485 Programmable Audio Clock Generator
83 config COMMON_CLK_RK808
84 tristate "Clock driver for RK805/RK808/RK809/RK817/RK818"
87 This driver supports RK805, RK809 and RK817, RK808 and RK818 crystal oscillator clock.
88 These multi-function devices have two fixed-rate oscillators, clocked at 32KHz each.
89 Clkout1 is always on, Clkout2 can off by control register.
91 config COMMON_CLK_HI655X
92 tristate "Clock driver for Hi655x" if EXPERT
93 depends on (MFD_HI655X_PMIC || COMPILE_TEST)
95 default MFD_HI655X_PMIC
97 This driver supports the hi655x PMIC clock. This
98 multi-function device has one fixed-rate oscillator, clocked
101 config COMMON_CLK_SCMI
102 tristate "Clock driver controlled via SCMI interface"
103 depends on ARM_SCMI_PROTOCOL || COMPILE_TEST
105 This driver provides support for clocks that are controlled
106 by firmware that implements the SCMI interface.
108 This driver uses SCMI Message Protocol to interact with the
109 firmware providing all the clock controls.
111 config COMMON_CLK_SCPI
112 tristate "Clock driver controlled via SCPI interface"
113 depends on ARM_SCPI_PROTOCOL || COMPILE_TEST
115 This driver provides support for clocks that are controlled
116 by firmware that implements the SCPI interface.
118 This driver uses SCPI Message Protocol to interact with the
119 firmware providing all the clock controls.
121 config COMMON_CLK_SI5341
122 tristate "Clock driver for SiLabs 5341 and 5340 A/B/C/D devices"
126 This driver supports Silicon Labs Si5341 and Si5340 programmable clock
127 generators. Not all features of these chips are currently supported
128 by the driver, in particular it only supports XTAL input. The chip can
129 be pre-programmed to support other configurations and features not yet
130 implemented in the driver.
132 config COMMON_CLK_SI5351
133 tristate "Clock driver for SiLabs 5351A/B/C"
137 This driver supports Silicon Labs 5351A/B/C programmable clock
140 config COMMON_CLK_SI514
141 tristate "Clock driver for SiLabs 514 devices"
146 This driver supports the Silicon Labs 514 programmable clock
149 config COMMON_CLK_SI544
150 tristate "Clock driver for SiLabs 544 devices"
154 This driver supports the Silicon Labs 544 programmable clock
157 config COMMON_CLK_SI570
158 tristate "Clock driver for SiLabs 570 and compatible devices"
163 This driver supports Silicon Labs 570/571/598/599 programmable
166 config COMMON_CLK_BM1880
167 bool "Clock driver for Bitmain BM1880 SoC"
168 depends on ARCH_BITMAIN || COMPILE_TEST
171 This driver supports the clocks on Bitmain BM1880 SoC.
173 config COMMON_CLK_CDCE706
174 tristate "Clock driver for TI CDCE706 clock synthesizer"
178 This driver supports TI CDCE706 programmable 3-PLL clock synthesizer.
180 config COMMON_CLK_TPS68470
181 tristate "Clock Driver for TI TPS68470 PMIC"
183 depends on INTEL_SKL_INT3472 || COMPILE_TEST
186 This driver supports the clocks provided by the TPS68470 PMIC.
188 config COMMON_CLK_CDCE925
189 tristate "Clock driver for TI CDCE913/925/937/949 devices"
194 This driver supports the TI CDCE913/925/937/949 programmable clock
195 synthesizer. Each chip has different number of PLLs and outputs.
196 For example, the CDCE925 contains two PLLs with spread-spectrum
197 clocking support and five output dividers. The driver only supports
198 the following setup, and uses a fixed setting for the output muxes.
199 Y1 is derived from the input clock
200 Y2 and Y3 derive from PLL1
201 Y4 and Y5 derive from PLL2
202 Given a target output frequency, the driver will set the PLL and
203 divider to best approximate the desired output.
205 config COMMON_CLK_CS2000_CP
206 tristate "Clock driver for CS2000 Fractional-N Clock Synthesizer & Clock Multiplier"
210 If you say yes here you get support for the CS2000 clock multiplier.
212 config COMMON_CLK_EN7523
213 bool "Clock driver for Airoha EN7523 SoC system clocks"
215 depends on ARCH_AIROHA || COMPILE_TEST
218 This driver provides the fixed clocks and gates present on Airoha
221 config COMMON_CLK_EP93XX
222 tristate "Clock driver for Cirrus Logic ep93xx SoC"
223 depends on ARCH_EP93XX || COMPILE_TEST
227 This driver supports the SoC clocks on the Cirrus Logic ep93xx.
229 config COMMON_CLK_EYEQ
230 bool "Clock driver for the Mobileye EyeQ platform"
231 depends on MACH_EYEQ5 || MACH_EYEQ6H || COMPILE_TEST
233 default MACH_EYEQ5 || MACH_EYEQ6H
235 This driver provides clocks found on Mobileye EyeQ5, EyeQ6L and Eye6H
236 SoCs. Controllers live in shared register regions called OLB. Driver
237 provides read-only PLLs, derived from the main crystal clock (which
238 must be constant). It also exposes some divider clocks.
240 config COMMON_CLK_FSL_FLEXSPI
241 tristate "Clock driver for FlexSPI on Layerscape SoCs"
242 depends on ARCH_LAYERSCAPE || COMPILE_TEST
243 default ARCH_LAYERSCAPE && SPI_NXP_FLEXSPI
245 On Layerscape SoCs there is a special clock for the FlexSPI
248 config COMMON_CLK_FSL_SAI
249 bool "Clock driver for BCLK of Freescale SAI cores"
250 depends on ARCH_LAYERSCAPE || COMPILE_TEST
252 This driver supports the Freescale SAI (Synchronous Audio Interface)
253 to be used as a generic clock output. Some SoCs have restrictions
254 regarding the possible pin multiplexer settings. Eg. on some SoCs
255 two SAI interfaces can only be enabled together. If just one is
256 needed, the BCLK pin of the second one can be used as general
257 purpose clock output. Ideally, it can be used to drive an audio
258 codec (sometimes known as MCLK).
260 config COMMON_CLK_GEMINI
261 bool "Clock driver for Cortina Systems Gemini SoC"
262 depends on ARCH_GEMINI || COMPILE_TEST
264 select RESET_CONTROLLER
266 This driver supports the SoC clocks on the Cortina Systems Gemini
267 platform, also known as SL3516 or CS3516.
269 config COMMON_CLK_LAN966X
270 tristate "Generic Clock Controller driver for LAN966X SoC"
273 depends on SOC_LAN966 || ARCH_LAN969X || COMPILE_TEST
275 This driver provides support for Generic Clock Controller(GCK) on
276 LAN966X SoC. GCK generates and supplies clock to various peripherals
279 config COMMON_CLK_ASPEED
280 bool "Clock driver for Aspeed BMC SoCs"
281 depends on ARCH_ASPEED || COMPILE_TEST
284 select RESET_CONTROLLER
286 This driver supports the SoC clocks on the Aspeed BMC platforms.
288 The G4 and G5 series, including the ast2400 and ast2500, are supported
291 config COMMON_CLK_S2MPS11
292 tristate "Clock driver for S2MPS1X/S5M8767 MFD"
293 depends on MFD_SEC_CORE || COMPILE_TEST
295 This driver supports S2MPS11/S2MPS14/S5M8767 crystal oscillator
296 clock. These multi-function devices have two (S2MPS14) or three
297 (S2MPS11, S5M8767) fixed-rate oscillators, clocked at 32KHz each.
300 tristate "Clock driver for the TWL PMIC family"
301 depends on TWL4030_CORE
303 Enable support for controlling the clock resources on TWL family
304 PMICs. These devices have some 32K clock outputs which can be
305 controlled by software. For now, the TWL6032 and TWL6030 clocks are
309 tristate "External McPDM functional clock from twl6040"
310 depends on TWL6040_CORE
312 Enable the external functional clock support on OMAP4+ platforms for
313 McPDM. McPDM module is using the external bit clock on the McPDM bus
316 config COMMON_CLK_AXI_CLKGEN
317 tristate "AXI clkgen driver"
318 depends on HAS_IOMEM || COMPILE_TEST
321 Support for the Analog Devices axi-clkgen pcore clock generator for Xilinx
322 FPGAs. It is commonly used in Analog Devices' reference designs.
325 bool "Clock driver for Freescale QorIQ platforms"
327 depends on PPC_E500MC || SOC_LS1021A || ARCH_LAYERSCAPE || COMPILE_TEST
329 This adds the clock driver support for Freescale QorIQ platforms
330 using common clock framework.
332 config CLK_LS1028A_PLLDIG
333 tristate "Clock driver for LS1028A Display output"
334 depends on ARCH_LAYERSCAPE || COMPILE_TEST
335 default ARCH_LAYERSCAPE
337 This driver support the Display output interfaces(LCD, DPHY) pixel clocks
338 of the QorIQ Layerscape LS1028A, as implemented TSMC CLN28HPM PLL. Not all
339 features of the PLL are currently supported by the driver. By default,
340 configured bypass mode with this PLL.
342 config COMMON_CLK_XGENE
343 bool "Clock driver for APM XGene SoC"
345 depends on ARM64 || COMPILE_TEST
347 Support for the APM X-Gene SoC reference, PLL, and device clocks.
349 config COMMON_CLK_LOCHNAGAR
350 tristate "Cirrus Logic Lochnagar clock driver"
351 depends on MFD_LOCHNAGAR
353 This driver supports the clocking features of the Cirrus Logic
354 Lochnagar audio development board.
356 config COMMON_CLK_NPCM8XX
357 tristate "Clock driver for the NPCM8XX SoC Family"
358 depends on ARCH_NPCM || COMPILE_TEST
360 This driver supports the clocks on the Nuvoton BMC NPCM8XX SoC Family,
361 all the clocks are initialized by the bootloader, so this driver
362 allows only reading of current settings directly from the hardware.
364 config COMMON_CLK_LOONGSON2
365 bool "Clock driver for Loongson-2 SoC"
366 depends on LOONGARCH || COMPILE_TEST
368 This driver provides support for clock controller on Loongson-2 SoC.
369 The clock controller can generates and supplies clock to various
370 peripherals within the SoC.
371 Say Y here to support Loongson-2 SoC clock driver.
373 config COMMON_CLK_NXP
374 def_bool COMMON_CLK && (ARCH_LPC18XX || ARCH_LPC32XX)
375 select REGMAP_MMIO if ARCH_LPC32XX
376 select MFD_SYSCON if ARCH_LPC18XX
378 Support for clock providers on NXP platforms.
380 config COMMON_CLK_PALMAS
381 tristate "Clock driver for TI Palmas devices"
382 depends on MFD_PALMAS
384 This driver supports TI Palmas devices 32KHz output KG and KG_AUDIO
385 using common clock framework.
387 config COMMON_CLK_PWM
388 tristate "Clock driver for PWMs used as clock outputs"
391 Adapter driver so that any PWM output can be (mis)used as clock signal
394 config COMMON_CLK_PXA
395 def_bool COMMON_CLK && ARCH_PXA
397 Support for the Marvell PXA SoC.
399 config COMMON_CLK_RS9_PCIE
400 tristate "Clock driver for Renesas 9-series PCIe clock generators"
405 This driver supports the Renesas 9-series PCIe clock generator
406 models 9FGV/9DBV/9DMV/9FGL/9DML/9QXL/9SQ.
408 config COMMON_CLK_SI521XX
409 tristate "Clock driver for SkyWorks Si521xx PCIe clock generators"
414 This driver supports the SkyWorks Si521xx PCIe clock generator
415 models Si52144/Si52146/Si52147.
417 config COMMON_CLK_VC3
418 tristate "Clock driver for Renesas VersaClock 3 devices"
423 This driver supports the Renesas VersaClock 3 programmable clock
426 config COMMON_CLK_VC5
427 tristate "Clock driver for IDT VersaClock 5,6 devices"
432 This driver supports the IDT VersaClock 5 and VersaClock 6
433 programmable clock generators.
435 config COMMON_CLK_VC7
436 tristate "Clock driver for Renesas Versaclock 7 devices"
441 Renesas Versaclock7 is a family of configurable clock generator
442 and jitter attenuator ICs with fractional and integer dividers.
444 config COMMON_CLK_STM32F
445 def_bool COMMON_CLK && (MACH_STM32F429 || MACH_STM32F469 || MACH_STM32F746)
447 Support for stm32f4 and stm32f7 SoC families clocks
449 config COMMON_CLK_STM32H7
450 def_bool COMMON_CLK && MACH_STM32H743
452 Support for stm32h7 SoC family clocks
454 config COMMON_CLK_MMP2
455 def_bool COMMON_CLK && (MACH_MMP2_DT || MACH_MMP3_DT)
457 Support for Marvell MMP2 and MMP3 SoC clocks
459 config COMMON_CLK_MMP2_AUDIO
460 tristate "Clock driver for MMP2 Audio subsystem"
461 depends on COMMON_CLK_MMP2 || COMPILE_TEST
463 This driver supports clocks for Audio subsystem on MMP2 SoC.
465 config COMMON_CLK_BD718XX
466 tristate "Clock driver for 32K clk gates on ROHM PMICs"
467 depends on MFD_ROHM_BD718XX || MFD_ROHM_BD71828
469 This driver supports ROHM BD71837, BD71847, BD71850, BD71815
470 and BD71828 PMICs clock gates.
472 config COMMON_CLK_FIXED_MMIO
473 bool "Clock driver for Memory Mapped Fixed values"
474 depends on COMMON_CLK && OF
477 Support for Memory Mapped IO Fixed clocks
479 config COMMON_CLK_K210
480 bool "Clock driver for the Canaan Kendryte K210 SoC"
481 depends on OF && RISCV && SOC_CANAAN_K210
482 default SOC_CANAAN_K210
484 Support for the Canaan Kendryte K210 RISC-V SoC clocks.
486 config COMMON_CLK_SP7021
487 tristate "Clock driver for Sunplus SP7021 SoC"
488 depends on SOC_SP7021 || COMPILE_TEST
491 This driver supports the Sunplus SP7021 SoC clocks.
492 It implements SP7021 PLLs/gate.
493 Not all features of the PLL are currently supported
496 source "drivers/clk/actions/Kconfig"
497 source "drivers/clk/analogbits/Kconfig"
498 source "drivers/clk/baikal-t1/Kconfig"
499 source "drivers/clk/bcm/Kconfig"
500 source "drivers/clk/hisilicon/Kconfig"
501 source "drivers/clk/imgtec/Kconfig"
502 source "drivers/clk/imx/Kconfig"
503 source "drivers/clk/ingenic/Kconfig"
504 source "drivers/clk/keystone/Kconfig"
505 source "drivers/clk/mediatek/Kconfig"
506 source "drivers/clk/meson/Kconfig"
507 source "drivers/clk/mstar/Kconfig"
508 source "drivers/clk/microchip/Kconfig"
509 source "drivers/clk/mvebu/Kconfig"
510 source "drivers/clk/nuvoton/Kconfig"
511 source "drivers/clk/pistachio/Kconfig"
512 source "drivers/clk/qcom/Kconfig"
513 source "drivers/clk/ralink/Kconfig"
514 source "drivers/clk/renesas/Kconfig"
515 source "drivers/clk/rockchip/Kconfig"
516 source "drivers/clk/samsung/Kconfig"
517 source "drivers/clk/sifive/Kconfig"
518 source "drivers/clk/socfpga/Kconfig"
519 source "drivers/clk/sophgo/Kconfig"
520 source "drivers/clk/sprd/Kconfig"
521 source "drivers/clk/starfive/Kconfig"
522 source "drivers/clk/sunxi/Kconfig"
523 source "drivers/clk/sunxi-ng/Kconfig"
524 source "drivers/clk/tegra/Kconfig"
525 source "drivers/clk/thead/Kconfig"
526 source "drivers/clk/stm32/Kconfig"
527 source "drivers/clk/ti/Kconfig"
528 source "drivers/clk/uniphier/Kconfig"
529 source "drivers/clk/visconti/Kconfig"
530 source "drivers/clk/x86/Kconfig"
531 source "drivers/clk/xilinx/Kconfig"
532 source "drivers/clk/zynqmp/Kconfig"
535 config CLK_KUNIT_TEST
536 tristate "Basic Clock Framework Kunit Tests" if !KUNIT_ALL_TESTS
538 default KUNIT_ALL_TESTS
541 Kunit tests for the common clock framework.
543 config CLK_FIXED_RATE_KUNIT_TEST
544 tristate "Basic fixed rate clk type KUnit test" if !KUNIT_ALL_TESTS
546 default KUNIT_ALL_TESTS
549 KUnit tests for the basic fixed rate clk type.
551 config CLK_GATE_KUNIT_TEST
552 tristate "Basic gate type Kunit test" if !KUNIT_ALL_TESTS
555 default KUNIT_ALL_TESTS
557 Kunit test for the basic clk gate type.
559 config CLK_FD_KUNIT_TEST
560 tristate "Basic fractional divider type Kunit test" if !KUNIT_ALL_TESTS
562 default KUNIT_ALL_TESTS
564 Kunit test for the clk-fractional-divider type.