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"
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
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"
148 depends on MFD_CROS_EC
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"
331 depends on OF && ARCH_OMAP && OMAP_DM_TIMER
333 Generic PWM framework driver for OMAP Dual-Mode Timer PWM output
335 To compile this driver as a module, choose M here: the module
336 will be called pwm-omap-dmtimer
339 tristate "NXP PCA9685 PWM driver"
343 Generic PWM framework driver for NXP PCA9685 LED controller.
345 To compile this driver as a module, choose M here: the module
346 will be called pwm-pca9685.
349 tristate "PKUnity NetBook-0916 PWM support"
352 Generic PWM framework driver for PKUnity NetBook-0916.
354 To compile this driver as a module, choose M here: the module
355 will be called pwm-puv3.
358 tristate "PXA PWM support"
361 Generic PWM framework driver for PXA.
363 To compile this driver as a module, choose M here: the module
364 will be called pwm-pxa.
367 tristate "Renesas R-Car PWM support"
368 depends on ARCH_RENESAS || COMPILE_TEST
371 This driver exposes the PWM Timer controller found in Renesas
372 R-Car chips through the PWM API.
374 To compile this driver as a module, choose M here: the module
375 will be called pwm-rcar.
377 config PWM_RENESAS_TPU
378 tristate "Renesas TPU PWM support"
379 depends on ARCH_RENESAS || COMPILE_TEST
382 This driver exposes the Timer Pulse Unit (TPU) PWM controller found
383 in Renesas chips through the PWM API.
385 To compile this driver as a module, choose M here: the module
386 will be called pwm-renesas-tpu.
389 tristate "Rockchip PWM support"
390 depends on ARCH_ROCKCHIP
392 Generic PWM framework driver for the PWM controller found on
396 tristate "Samsung PWM support"
397 depends on PLAT_SAMSUNG || ARCH_EXYNOS
399 Generic PWM framework driver for Samsung.
401 To compile this driver as a module, choose M here: the module
402 will be called pwm-samsung.
405 tristate "STMicroelectronics SPEAr PWM support"
406 depends on PLAT_SPEAR
409 Generic PWM framework driver for the PWM controller on ST
412 To compile this driver as a module, choose M here: the module
413 will be called pwm-spear.
416 tristate "STiH4xx PWM support"
420 Generic PWM framework driver for STiH4xx SoCs.
422 To compile this driver as a module, choose M here: the module
423 will be called pwm-sti.
426 tristate "STMicroelectronics STM32 PWM"
427 depends on MFD_STM32_TIMERS
429 Generic PWM framework driver for STM32 SoCs.
431 To compile this driver as a module, choose M here: the module
432 will be called pwm-stm32.
435 tristate "STMicroelectronics STM32 PWM LP"
436 depends on MFD_STM32_LPTIMER || COMPILE_TEST
438 Generic PWM framework driver for STMicroelectronics STM32 SoCs
439 with Low-Power Timer (LPTIM).
441 To compile this driver as a module, choose M here: the module
442 will be called pwm-stm32-lp.
445 bool "STMPE expander PWM export"
448 This enables support for the PWMs found in the STMPE I/O
452 tristate "Allwinner PWM support"
453 depends on ARCH_SUNXI || COMPILE_TEST
454 depends on HAS_IOMEM && COMMON_CLK
456 Generic PWM framework driver for Allwinner SoCs.
458 To compile this driver as a module, choose M here: the module
459 will be called pwm-sun4i.
462 tristate "NVIDIA Tegra PWM support"
463 depends on ARCH_TEGRA
465 Generic PWM framework driver for the PWFM controller found on NVIDIA
468 To compile this driver as a module, choose M here: the module
469 will be called pwm-tegra.
472 tristate "ECAP PWM support"
473 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX || ARCH_KEYSTONE || ARCH_K3
475 PWM driver support for the ECAP APWM controller found on TI SOCs
477 To compile this driver as a module, choose M here: the module
478 will be called pwm-tiecap.
481 tristate "EHRPWM PWM support"
482 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX || ARCH_K3
484 PWM driver support for the EHRPWM controller found on TI SOCs
486 To compile this driver as a module, choose M here: the module
487 will be called pwm-tiehrpwm.
491 default y if (ARCH_OMAP2PLUS) && (PWM_TIECAP || PWM_TIEHRPWM)
493 PWM Subsystem driver support for AM33xx SOC.
495 PWM submodules require PWM config space access from submodule
496 drivers and require common parent driver support.
499 tristate "TWL4030/6030 PWM support"
500 depends on TWL4030_CORE
502 Generic PWM framework driver for TWL4030/6030.
504 To compile this driver as a module, choose M here: the module
505 will be called pwm-twl.
508 tristate "TWL4030/6030 PWM support for LED drivers"
509 depends on TWL4030_CORE
511 Generic PWM framework driver for TWL4030/6030 LED terminals.
513 To compile this driver as a module, choose M here: the module
514 will be called pwm-twl-led.
517 tristate "vt8500 PWM support"
518 depends on ARCH_VT8500
520 Generic PWM framework driver for vt8500.
522 To compile this driver as a module, choose M here: the module
523 will be called pwm-vt8500.
526 tristate "ZTE ZX PWM support"
529 Generic PWM framework driver for ZTE ZX family SoCs.
531 To compile this driver as a module, choose M here: the module
532 will be called pwm-zx.