1 # SPDX-License-Identifier: GPL-2.0-only
3 bool "Pulse-Width Modulation (PWM) Support"
5 Generic Pulse-Width Modulation (PWM) support.
7 In Pulse-Width Modulation, a variation of the width of pulses
8 in a rectangular pulse signal is used as a means to alter the
9 average power of the signal. Applications include efficient
10 power delivery and voltage regulation. In computer systems,
11 PWMs are commonly used to control fans or the brightness of
14 This framework provides a generic interface to PWM devices
15 within the Linux kernel. On the driver side it provides an API
16 to register and unregister a PWM chip, an abstraction of a PWM
17 controller, that supports one or more PWM devices. Client
18 drivers can request PWM devices and use the generic framework
19 to configure as well as enable and disable them.
21 This generic framework replaces the legacy PWM framework which
22 allows only a single driver implementing the required API. Not
23 all legacy implementations have been ported to the framework
24 yet. The framework provides an API that is backward compatible
25 with the legacy framework so that existing client drivers
26 continue to work as expected.
37 tristate "AB8500 PWM support"
38 depends on AB8500_CORE && ARCH_U8500
40 Generic PWM framework driver for Analog Baseband AB8500.
42 To compile this driver as a module, choose M here: the module
43 will be called pwm-ab8500.
46 tristate "Atmel PWM support"
47 depends on ARCH_AT91 && OF
49 Generic PWM framework driver for Atmel SoC.
51 To compile this driver as a module, choose M here: the module
52 will be called pwm-atmel.
54 config PWM_ATMEL_HLCDC_PWM
55 tristate "Atmel HLCDC PWM support"
56 depends on MFD_ATMEL_HLCDC
59 Generic PWM framework driver for the PWM output of the HLCDC
60 (Atmel High-end LCD Controller). This PWM output is mainly used
61 to control the LCD backlight.
63 To compile this driver as a module, choose M here: the module
64 will be called pwm-atmel-hlcdc.
67 tristate "Atmel TC Block PWM support"
68 depends on ATMEL_TCLIB && OF
70 Generic PWM framework driver for Atmel Timer Counter Block.
72 A Timer Counter Block provides 6 PWM devices grouped by 2.
73 Devices in a given group must have the same period.
75 To compile this driver as a module, choose M here: the module
76 will be called pwm-atmel-tcb.
79 tristate "iProc PWM support"
80 depends on ARCH_BCM_IPROC || COMPILE_TEST
82 default ARCH_BCM_IPROC
84 Generic PWM framework driver for Broadcom iProc PWM block. This
85 block is used in Broadcom iProc SoC's.
87 To compile this driver as a module, choose M here: the module
88 will be called pwm-bcm-iproc.
91 tristate "Kona PWM support"
92 depends on ARCH_BCM_MOBILE || ARCH_BCM_CYGNUS || COMPILE_TEST
93 depends on HAVE_CLK && HAS_IOMEM
94 default ARCH_BCM_MOBILE || ARCH_BCM_CYGNUS
96 Generic PWM framework driver for Broadcom Kona PWM block.
98 To compile this driver as a module, choose M here: the module
99 will be called pwm-bcm-kona.
102 tristate "BCM2835 PWM support"
103 depends on ARCH_BCM2835 || ARCH_BRCMSTB
105 PWM framework driver for BCM2835 controller (Raspberry Pi)
107 To compile this driver as a module, choose M here: the module
108 will be called pwm-bcm2835.
111 tristate "Marvell Berlin PWM support"
112 depends on ARCH_BERLIN
114 PWM framework driver for Marvell Berlin SoCs.
116 To compile this driver as a module, choose M here: the module
117 will be called pwm-berlin.
120 tristate "Broadcom STB PWM support"
121 depends on ARCH_BRCMSTB || BMIPS_GENERIC
123 Generic PWM framework driver for the Broadcom Set-top-Box
126 To compile this driver as a module, choose M Here: the module
127 will be called pwm-brcmstb.c.
130 tristate "CLPS711X PWM support"
131 depends on ARCH_CLPS711X || COMPILE_TEST
134 Generic PWM framework driver for Cirrus Logic CLPS711X.
136 To compile this driver as a module, choose M here: the module
137 will be called pwm-clps711x.
140 bool "Intel Crystalcove (CRC) PWM support"
141 depends on X86 && INTEL_SOC_PMIC
143 Generic PWM framework driver for Crystalcove (CRC) PMIC based PWM
147 tristate "ChromeOS EC PWM driver"
150 PWM driver for exposing a PWM attached to the ChromeOS Embedded
154 tristate "Cirrus Logic EP93xx PWM support"
155 depends on ARCH_EP93XX
157 Generic PWM framework driver for Cirrus Logic EP93xx.
159 To compile this driver as a module, choose M here: the module
160 will be called pwm-ep93xx.
163 tristate "Freescale FlexTimer Module (FTM) PWM support"
168 Generic FTM PWM framework driver for Freescale VF610 and
169 Layerscape LS-1 SoCs.
171 To compile this driver as a module, choose M here: the module
172 will be called pwm-fsl-ftm.
175 tristate "HiSilicon BVT PWM support"
176 depends on ARCH_HISI || COMPILE_TEST
178 Generic PWM framework driver for HiSilicon BVT SoCs.
180 To compile this driver as a module, choose M here: the module
181 will be called pwm-hibvt.
184 tristate "Imagination Technologies PWM driver"
186 depends on MFD_SYSCON
187 depends on COMMON_CLK
188 depends on MIPS || COMPILE_TEST
190 Generic PWM framework driver for Imagination Technologies
191 PWM block which supports 4 channels.
193 To compile this driver as a module, choose M here: the module
194 will be called pwm-img
197 tristate "i.MX1 PWM support"
200 Generic PWM framework driver for i.MX1 and i.MX21
202 To compile this driver as a module, choose M here: the module
203 will be called pwm-imx1.
206 tristate "i.MX27 PWM support"
209 Generic PWM framework driver for i.MX27 and later i.MX SoCs.
211 To compile this driver as a module, choose M here: the module
212 will be called pwm-imx27.
215 tristate "i.MX TPM PWM support"
216 depends on ARCH_MXC || COMPILE_TEST
217 depends on HAVE_CLK && HAS_IOMEM
219 Generic PWM framework driver for i.MX7ULP TPM module, TPM's full
220 name is Low Power Timer/Pulse Width Modulation Module.
222 To compile this driver as a module, choose M here: the module
223 will be called pwm-imx-tpm.
226 tristate "Ingenic JZ47xx PWM support"
227 depends on MACH_INGENIC
229 Generic PWM framework driver for Ingenic JZ47xx based
232 To compile this driver as a module, choose M here: the module
233 will be called pwm-jz4740.
236 tristate "TI/National Semiconductor LP3943 PWM support"
237 depends on MFD_LP3943
239 Generic PWM framework driver for LP3943 which supports two PWM
242 To compile this driver as a module, choose M here: the module
243 will be called pwm-lp3943.
245 config PWM_LPC18XX_SCT
246 tristate "LPC18xx/43xx PWM/SCT support"
247 depends on ARCH_LPC18XX
249 Generic PWM framework driver for NXP LPC18xx PWM/SCT which
250 supports 16 channels.
251 A maximum of 15 channels can be requested simultaneously and
252 must have the same period.
254 To compile this driver as a module, choose M here: the module
255 will be called pwm-lpc18xx-sct.
258 tristate "LPC32XX PWM support"
259 depends on ARCH_LPC32XX
261 Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
264 To compile this driver as a module, choose M here: the module
265 will be called pwm-lpc32xx.
271 tristate "Intel LPSS PWM PCI driver"
272 depends on X86 && PCI
275 The PCI driver for Intel Low Power Subsystem PWM controller.
277 To compile this driver as a module, choose M here: the module
278 will be called pwm-lpss-pci.
280 config PWM_LPSS_PLATFORM
281 tristate "Intel LPSS PWM platform driver"
282 depends on X86 && ACPI
285 The platform driver for Intel Low Power Subsystem PWM controller.
287 To compile this driver as a module, choose M here: the module
288 will be called pwm-lpss-platform.
291 tristate "Amlogic Meson PWM driver"
292 depends on ARCH_MESON
294 The platform driver for Amlogic Meson PWM controller.
296 To compile this driver as a module, choose M here: the module
297 will be called pwm-meson.
300 tristate "MediaTek display PWM driver"
301 depends on ARCH_MEDIATEK || COMPILE_TEST
304 Generic PWM framework driver for MediaTek disp-pwm device.
305 The PWM is used to control the backlight brightness for display.
307 To compile this driver as a module, choose M here: the module
308 will be called pwm-mtk-disp.
311 tristate "MediaTek PWM support"
312 depends on ARCH_MEDIATEK || RALINK || COMPILE_TEST
314 Generic PWM framework driver for Mediatek ARM SoC.
316 To compile this driver as a module, choose M here: the module
317 will be called pwm-mediatek.
320 tristate "Freescale MXS PWM support"
321 depends on ARCH_MXS && OF
324 Generic PWM framework driver for Freescale MXS.
326 To compile this driver as a module, choose M here: the module
327 will be called pwm-mxs.
329 config PWM_OMAP_DMTIMER
330 tristate "OMAP Dual-Mode Timer PWM support"
332 depends on OMAP_DM_TIMER || COMPILE_TEST
334 Generic PWM framework driver for OMAP Dual-Mode Timer PWM output
336 To compile this driver as a module, choose M here: the module
337 will be called pwm-omap-dmtimer
340 tristate "NXP PCA9685 PWM driver"
344 Generic PWM framework driver for NXP PCA9685 LED controller.
346 To compile this driver as a module, choose M here: the module
347 will be called pwm-pca9685.
350 tristate "PKUnity NetBook-0916 PWM support"
353 Generic PWM framework driver for PKUnity NetBook-0916.
355 To compile this driver as a module, choose M here: the module
356 will be called pwm-puv3.
359 tristate "PXA PWM support"
362 Generic PWM framework driver for PXA.
364 To compile this driver as a module, choose M here: the module
365 will be called pwm-pxa.
368 tristate "Renesas R-Car PWM support"
369 depends on ARCH_RENESAS || COMPILE_TEST
372 This driver exposes the PWM Timer controller found in Renesas
373 R-Car chips through the PWM API.
375 To compile this driver as a module, choose M here: the module
376 will be called pwm-rcar.
378 config PWM_RENESAS_TPU
379 tristate "Renesas TPU PWM support"
380 depends on ARCH_RENESAS || COMPILE_TEST
383 This driver exposes the Timer Pulse Unit (TPU) PWM controller found
384 in Renesas chips through the PWM API.
386 To compile this driver as a module, choose M here: the module
387 will be called pwm-renesas-tpu.
390 tristate "Rockchip PWM support"
391 depends on ARCH_ROCKCHIP
393 Generic PWM framework driver for the PWM controller found on
397 tristate "Samsung PWM support"
398 depends on PLAT_SAMSUNG || ARCH_EXYNOS
400 Generic PWM framework driver for Samsung.
402 To compile this driver as a module, choose M here: the module
403 will be called pwm-samsung.
406 tristate "SiFive PWM support"
408 depends on COMMON_CLK
409 depends on RISCV || COMPILE_TEST
411 Generic PWM framework driver for SiFive SoCs.
413 To compile this driver as a module, choose M here: the module
414 will be called pwm-sifive.
417 tristate "STMicroelectronics SPEAr PWM support"
418 depends on PLAT_SPEAR
421 Generic PWM framework driver for the PWM controller on ST
424 To compile this driver as a module, choose M here: the module
425 will be called pwm-spear.
428 tristate "Spreadtrum PWM support"
429 depends on ARCH_SPRD || COMPILE_TEST
432 Generic PWM framework driver for the PWM controller on
435 To compile this driver as a module, choose M here: the module
436 will be called pwm-sprd.
439 tristate "STiH4xx PWM support"
443 Generic PWM framework driver for STiH4xx SoCs.
445 To compile this driver as a module, choose M here: the module
446 will be called pwm-sti.
449 tristate "STMicroelectronics STM32 PWM"
450 depends on MFD_STM32_TIMERS
452 Generic PWM framework driver for STM32 SoCs.
454 To compile this driver as a module, choose M here: the module
455 will be called pwm-stm32.
458 tristate "STMicroelectronics STM32 PWM LP"
459 depends on MFD_STM32_LPTIMER || COMPILE_TEST
461 Generic PWM framework driver for STMicroelectronics STM32 SoCs
462 with Low-Power Timer (LPTIM).
464 To compile this driver as a module, choose M here: the module
465 will be called pwm-stm32-lp.
468 bool "STMPE expander PWM export"
471 This enables support for the PWMs found in the STMPE I/O
475 tristate "Allwinner PWM support"
476 depends on ARCH_SUNXI || COMPILE_TEST
477 depends on HAS_IOMEM && COMMON_CLK
479 Generic PWM framework driver for Allwinner SoCs.
481 To compile this driver as a module, choose M here: the module
482 will be called pwm-sun4i.
485 tristate "NVIDIA Tegra PWM support"
486 depends on ARCH_TEGRA
488 Generic PWM framework driver for the PWFM controller found on NVIDIA
491 To compile this driver as a module, choose M here: the module
492 will be called pwm-tegra.
495 tristate "ECAP PWM support"
496 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX || ARCH_KEYSTONE || ARCH_K3
498 PWM driver support for the ECAP APWM controller found on TI SOCs
500 To compile this driver as a module, choose M here: the module
501 will be called pwm-tiecap.
504 tristate "EHRPWM PWM support"
505 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX || ARCH_K3
507 PWM driver support for the EHRPWM controller found on TI SOCs
509 To compile this driver as a module, choose M here: the module
510 will be called pwm-tiehrpwm.
513 tristate "TWL4030/6030 PWM support"
514 depends on TWL4030_CORE
516 Generic PWM framework driver for TWL4030/6030.
518 To compile this driver as a module, choose M here: the module
519 will be called pwm-twl.
522 tristate "TWL4030/6030 PWM support for LED drivers"
523 depends on TWL4030_CORE
525 Generic PWM framework driver for TWL4030/6030 LED terminals.
527 To compile this driver as a module, choose M here: the module
528 will be called pwm-twl-led.
531 tristate "vt8500 PWM support"
532 depends on ARCH_VT8500
534 Generic PWM framework driver for vt8500.
536 To compile this driver as a module, choose M here: the module
537 will be called pwm-vt8500.
540 tristate "ZTE ZX PWM support"
543 Generic PWM framework driver for ZTE ZX family SoCs.
545 To compile this driver as a module, choose M here: the module
546 will be called pwm-zx.