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
29 The common clock framework is a single definition of struct
30 clk, useful across many platforms, as well as an
31 implementation of the clock API in include/linux/clk.h.
32 Architectures utilizing the common struct clk should select
37 config COMMON_CLK_WM831X
38 tristate "Clock driver for WM831x/2x PMICs"
41 Supports the clocking subsystem of the WM831x/2x series of
42 PMICs from Wolfson Microelectronics.
44 source "drivers/clk/versatile/Kconfig"
47 bool "PLL Driver for HSDK platform"
48 depends on ARC_SOC_HSDK || COMPILE_TEST
51 This driver supports the HSDK core, system, ddr, tunnel and hdmi PLLs
55 tristate "Ti LMK04832 JESD204B Compliant Clock Jitter Cleaner"
59 Say yes here to build support for Texas Instruments' LMK04832 Ultra
60 Low-Noise JESD204B Compliant Clock Jitter Cleaner With Dual Loop PLLs
62 config COMMON_CLK_APPLE_NCO
63 tristate "Clock driver for Apple SoC NCOs"
64 depends on ARCH_APPLE || COMPILE_TEST
67 This driver supports NCO (Numerically Controlled Oscillator) blocks
68 found on Apple SoCs such as t8103 (M1). The blocks are typically
69 generators of audio clocks.
71 config COMMON_CLK_MAX77686
72 tristate "Clock driver for Maxim 77620/77686/77802 MFD"
73 depends on MFD_MAX77686 || MFD_MAX77620 || COMPILE_TEST
75 This driver supports Maxim 77620/77686/77802 crystal oscillator
78 config COMMON_CLK_MAX9485
79 tristate "Maxim 9485 Programmable Clock Generator"
82 This driver supports Maxim 9485 Programmable Audio Clock Generator
84 config COMMON_CLK_RK808
85 tristate "Clock driver for RK805/RK808/RK809/RK817/RK818"
88 This driver supports RK805, RK809 and RK817, RK808 and RK818 crystal oscillator clock.
89 These multi-function devices have two fixed-rate oscillators, clocked at 32KHz each.
90 Clkout1 is always on, Clkout2 can off by control register.
92 config COMMON_CLK_HI655X
93 tristate "Clock driver for Hi655x" if EXPERT
94 depends on (MFD_HI655X_PMIC || COMPILE_TEST)
96 default MFD_HI655X_PMIC
98 This driver supports the hi655x PMIC clock. This
99 multi-function device has one fixed-rate oscillator, clocked
102 config COMMON_CLK_SCMI
103 tristate "Clock driver controlled via SCMI interface"
104 depends on ARM_SCMI_PROTOCOL || COMPILE_TEST
106 This driver provides support for clocks that are controlled
107 by firmware that implements the SCMI interface.
109 This driver uses SCMI Message Protocol to interact with the
110 firmware providing all the clock controls.
112 config COMMON_CLK_SCPI
113 tristate "Clock driver controlled via SCPI interface"
114 depends on ARM_SCPI_PROTOCOL || COMPILE_TEST
116 This driver provides support for clocks that are controlled
117 by firmware that implements the SCPI interface.
119 This driver uses SCPI Message Protocol to interact with the
120 firmware providing all the clock controls.
122 config COMMON_CLK_SI5341
123 tristate "Clock driver for SiLabs 5341 and 5340 A/B/C/D devices"
127 This driver supports Silicon Labs Si5341 and Si5340 programmable clock
128 generators. Not all features of these chips are currently supported
129 by the driver, in particular it only supports XTAL input. The chip can
130 be pre-programmed to support other configurations and features not yet
131 implemented in the driver.
133 config COMMON_CLK_SI5351
134 tristate "Clock driver for SiLabs 5351A/B/C"
138 This driver supports Silicon Labs 5351A/B/C programmable clock
141 config COMMON_CLK_SI514
142 tristate "Clock driver for SiLabs 514 devices"
147 This driver supports the Silicon Labs 514 programmable clock
150 config COMMON_CLK_SI544
151 tristate "Clock driver for SiLabs 544 devices"
155 This driver supports the Silicon Labs 544 programmable clock
158 config COMMON_CLK_SI570
159 tristate "Clock driver for SiLabs 570 and compatible devices"
164 This driver supports Silicon Labs 570/571/598/599 programmable
167 config COMMON_CLK_BM1880
168 bool "Clock driver for Bitmain BM1880 SoC"
169 depends on ARCH_BITMAIN || COMPILE_TEST
172 This driver supports the clocks on Bitmain BM1880 SoC.
174 config COMMON_CLK_CDCE706
175 tristate "Clock driver for TI CDCE706 clock synthesizer"
179 This driver supports TI CDCE706 programmable 3-PLL clock synthesizer.
181 config COMMON_CLK_TPS68470
182 tristate "Clock Driver for TI TPS68470 PMIC"
184 depends on INTEL_SKL_INT3472 || COMPILE_TEST
187 This driver supports the clocks provided by the TPS68470 PMIC.
189 config COMMON_CLK_CDCE925
190 tristate "Clock driver for TI CDCE913/925/937/949 devices"
195 This driver supports the TI CDCE913/925/937/949 programmable clock
196 synthesizer. Each chip has different number of PLLs and outputs.
197 For example, the CDCE925 contains two PLLs with spread-spectrum
198 clocking support and five output dividers. The driver only supports
199 the following setup, and uses a fixed setting for the output muxes.
200 Y1 is derived from the input clock
201 Y2 and Y3 derive from PLL1
202 Y4 and Y5 derive from PLL2
203 Given a target output frequency, the driver will set the PLL and
204 divider to best approximate the desired output.
206 config COMMON_CLK_CS2000_CP
207 tristate "Clock driver for CS2000 Fractional-N Clock Synthesizer & Clock Multiplier"
211 If you say yes here you get support for the CS2000 clock multiplier.
213 config COMMON_CLK_EN7523
214 bool "Clock driver for Airoha EN7523 SoC system clocks"
216 depends on ARCH_AIROHA || COMPILE_TEST
219 This driver provides the fixed clocks and gates present on Airoha
222 config COMMON_CLK_FSL_FLEXSPI
223 tristate "Clock driver for FlexSPI on Layerscape SoCs"
224 depends on ARCH_LAYERSCAPE || COMPILE_TEST
225 default ARCH_LAYERSCAPE && SPI_NXP_FLEXSPI
227 On Layerscape SoCs there is a special clock for the FlexSPI
230 config COMMON_CLK_FSL_SAI
231 bool "Clock driver for BCLK of Freescale SAI cores"
232 depends on ARCH_LAYERSCAPE || COMPILE_TEST
234 This driver supports the Freescale SAI (Synchronous Audio Interface)
235 to be used as a generic clock output. Some SoCs have restrictions
236 regarding the possible pin multiplexer settings. Eg. on some SoCs
237 two SAI interfaces can only be enabled together. If just one is
238 needed, the BCLK pin of the second one can be used as general
239 purpose clock output. Ideally, it can be used to drive an audio
240 codec (sometimes known as MCLK).
242 config COMMON_CLK_GEMINI
243 bool "Clock driver for Cortina Systems Gemini SoC"
244 depends on ARCH_GEMINI || COMPILE_TEST
246 select RESET_CONTROLLER
248 This driver supports the SoC clocks on the Cortina Systems Gemini
249 platform, also known as SL3516 or CS3516.
251 config COMMON_CLK_LAN966X
252 bool "Generic Clock Controller driver for LAN966X SoC"
255 depends on SOC_LAN966 || COMPILE_TEST
257 This driver provides support for Generic Clock Controller(GCK) on
258 LAN966X SoC. GCK generates and supplies clock to various peripherals
261 config COMMON_CLK_ASPEED
262 bool "Clock driver for Aspeed BMC SoCs"
263 depends on ARCH_ASPEED || COMPILE_TEST
266 select RESET_CONTROLLER
268 This driver supports the SoC clocks on the Aspeed BMC platforms.
270 The G4 and G5 series, including the ast2400 and ast2500, are supported
273 config COMMON_CLK_S2MPS11
274 tristate "Clock driver for S2MPS1X/S5M8767 MFD"
275 depends on MFD_SEC_CORE || COMPILE_TEST
277 This driver supports S2MPS11/S2MPS14/S5M8767 crystal oscillator
278 clock. These multi-function devices have two (S2MPS14) or three
279 (S2MPS11, S5M8767) fixed-rate oscillators, clocked at 32KHz each.
282 tristate "External McPDM functional clock from twl6040"
283 depends on TWL6040_CORE
285 Enable the external functional clock support on OMAP4+ platforms for
286 McPDM. McPDM module is using the external bit clock on the McPDM bus
289 config COMMON_CLK_AXI_CLKGEN
290 tristate "AXI clkgen driver"
291 depends on HAS_IOMEM || COMPILE_TEST
294 Support for the Analog Devices axi-clkgen pcore clock generator for Xilinx
295 FPGAs. It is commonly used in Analog Devices' reference designs.
298 bool "Clock driver for Freescale QorIQ platforms"
300 depends on PPC_E500MC || SOC_LS1021A || ARCH_LAYERSCAPE || COMPILE_TEST
302 This adds the clock driver support for Freescale QorIQ platforms
303 using common clock framework.
305 config CLK_LS1028A_PLLDIG
306 tristate "Clock driver for LS1028A Display output"
307 depends on ARCH_LAYERSCAPE || COMPILE_TEST
308 default ARCH_LAYERSCAPE
310 This driver support the Display output interfaces(LCD, DPHY) pixel clocks
311 of the QorIQ Layerscape LS1028A, as implemented TSMC CLN28HPM PLL. Not all
312 features of the PLL are currently supported by the driver. By default,
313 configured bypass mode with this PLL.
315 config COMMON_CLK_XGENE
316 bool "Clock driver for APM XGene SoC"
318 depends on ARM64 || COMPILE_TEST
320 Support for the APM X-Gene SoC reference, PLL, and device clocks.
322 config COMMON_CLK_LOCHNAGAR
323 tristate "Cirrus Logic Lochnagar clock driver"
324 depends on MFD_LOCHNAGAR
326 This driver supports the clocking features of the Cirrus Logic
327 Lochnagar audio development board.
329 config COMMON_CLK_NXP
330 def_bool COMMON_CLK && (ARCH_LPC18XX || ARCH_LPC32XX)
331 select REGMAP_MMIO if ARCH_LPC32XX
332 select MFD_SYSCON if ARCH_LPC18XX
334 Support for clock providers on NXP platforms.
336 config COMMON_CLK_PALMAS
337 tristate "Clock driver for TI Palmas devices"
338 depends on MFD_PALMAS
340 This driver supports TI Palmas devices 32KHz output KG and KG_AUDIO
341 using common clock framework.
343 config COMMON_CLK_PWM
344 tristate "Clock driver for PWMs used as clock outputs"
347 Adapter driver so that any PWM output can be (mis)used as clock signal
350 config COMMON_CLK_PXA
351 def_bool COMMON_CLK && ARCH_PXA
353 Support for the Marvell PXA SoC.
355 config COMMON_CLK_OXNAS
356 bool "Clock driver for the OXNAS SoC Family"
357 depends on ARCH_OXNAS || COMPILE_TEST
360 Support for the OXNAS SoC Family clocks.
362 config COMMON_CLK_RS9_PCIE
363 tristate "Clock driver for Renesas 9-series PCIe clock generators"
368 This driver supports the Renesas 9-series PCIe clock generator
369 models 9FGV/9DBV/9DMV/9FGL/9DML/9QXL/9SQ.
371 config COMMON_CLK_VC5
372 tristate "Clock driver for IDT VersaClock 5,6 devices"
377 This driver supports the IDT VersaClock 5 and VersaClock 6
378 programmable clock generators.
380 config COMMON_CLK_STM32MP135
381 def_bool COMMON_CLK && MACH_STM32MP13
383 Support for stm32mp135 SoC family clocks
385 config COMMON_CLK_STM32MP157
386 def_bool COMMON_CLK && MACH_STM32MP157
388 Support for stm32mp157 SoC family clocks
390 config COMMON_CLK_STM32F
391 def_bool COMMON_CLK && (MACH_STM32F429 || MACH_STM32F469 || MACH_STM32F746)
393 Support for stm32f4 and stm32f7 SoC families clocks
395 config COMMON_CLK_STM32H7
396 def_bool COMMON_CLK && MACH_STM32H743
398 Support for stm32h7 SoC family clocks
400 config COMMON_CLK_MMP2
401 def_bool COMMON_CLK && (MACH_MMP2_DT || MACH_MMP3_DT)
403 Support for Marvell MMP2 and MMP3 SoC clocks
405 config COMMON_CLK_MMP2_AUDIO
406 tristate "Clock driver for MMP2 Audio subsystem"
407 depends on COMMON_CLK_MMP2 || COMPILE_TEST
409 This driver supports clocks for Audio subsystem on MMP2 SoC.
411 config COMMON_CLK_BD718XX
412 tristate "Clock driver for 32K clk gates on ROHM PMICs"
413 depends on MFD_ROHM_BD718XX || MFD_ROHM_BD71828
415 This driver supports ROHM BD71837, BD71847, BD71850, BD71815
416 and BD71828 PMICs clock gates.
418 config COMMON_CLK_FIXED_MMIO
419 bool "Clock driver for Memory Mapped Fixed values"
420 depends on COMMON_CLK && OF
422 Support for Memory Mapped IO Fixed clocks
424 config COMMON_CLK_K210
425 bool "Clock driver for the Canaan Kendryte K210 SoC"
426 depends on OF && RISCV && SOC_CANAAN
429 Support for the Canaan Kendryte K210 RISC-V SoC clocks.
431 source "drivers/clk/actions/Kconfig"
432 source "drivers/clk/analogbits/Kconfig"
433 source "drivers/clk/baikal-t1/Kconfig"
434 source "drivers/clk/bcm/Kconfig"
435 source "drivers/clk/hisilicon/Kconfig"
436 source "drivers/clk/imgtec/Kconfig"
437 source "drivers/clk/imx/Kconfig"
438 source "drivers/clk/ingenic/Kconfig"
439 source "drivers/clk/keystone/Kconfig"
440 source "drivers/clk/mediatek/Kconfig"
441 source "drivers/clk/meson/Kconfig"
442 source "drivers/clk/mstar/Kconfig"
443 source "drivers/clk/microchip/Kconfig"
444 source "drivers/clk/mvebu/Kconfig"
445 source "drivers/clk/pistachio/Kconfig"
446 source "drivers/clk/qcom/Kconfig"
447 source "drivers/clk/ralink/Kconfig"
448 source "drivers/clk/renesas/Kconfig"
449 source "drivers/clk/rockchip/Kconfig"
450 source "drivers/clk/samsung/Kconfig"
451 source "drivers/clk/sifive/Kconfig"
452 source "drivers/clk/socfpga/Kconfig"
453 source "drivers/clk/sprd/Kconfig"
454 source "drivers/clk/starfive/Kconfig"
455 source "drivers/clk/sunxi/Kconfig"
456 source "drivers/clk/sunxi-ng/Kconfig"
457 source "drivers/clk/tegra/Kconfig"
458 source "drivers/clk/ti/Kconfig"
459 source "drivers/clk/uniphier/Kconfig"
460 source "drivers/clk/visconti/Kconfig"
461 source "drivers/clk/x86/Kconfig"
462 source "drivers/clk/xilinx/Kconfig"
463 source "drivers/clk/zynqmp/Kconfig"
466 config CLK_KUNIT_TEST
467 tristate "Basic Clock Framework Kunit Tests" if !KUNIT_ALL_TESTS
469 default KUNIT_ALL_TESTS
471 Kunit tests for the common clock framework.
473 config CLK_GATE_KUNIT_TEST
474 tristate "Basic gate type Kunit test" if !KUNIT_ALL_TESTS
476 default KUNIT_ALL_TESTS
478 Kunit test for the basic clk gate type.