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1# SPDX-License-Identifier: GPL-2.0-only
2menuconfig PWM
3 bool "Pulse-Width Modulation (PWM) Support"
4 help
5 Generic Pulse-Width Modulation (PWM) support.
6
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
12 display backlights.
13
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.
20
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.
27
28 If unsure, say no.
29
30if PWM
31
32config PWM_SYSFS
33 bool
34 default y if SYSFS
35
36config PWM_DEBUG
37 bool "PWM lowlevel drivers additional checks and debug messages"
38 depends on DEBUG_KERNEL
39 help
40 This option enables some additional checks to help lowlevel driver
41 authors to get their callbacks implemented correctly.
42 It is expected to introduce some runtime overhead and diagnostic
43 output to the kernel log, so only enable while working on a driver.
44
45config PWM_AB8500
46 tristate "AB8500 PWM support"
47 depends on AB8500_CORE && ARCH_U8500
48 help
49 Generic PWM framework driver for Analog Baseband AB8500.
50
51 To compile this driver as a module, choose M here: the module
52 will be called pwm-ab8500.
53
54config PWM_APPLE
55 tristate "Apple SoC PWM support"
56 depends on ARCH_APPLE || COMPILE_TEST
57 help
58 Generic PWM framework driver for PWM controller present on
59 Apple SoCs
60
61 Say Y here if you have an ARM Apple laptop, otherwise say N
62
63 To compile this driver as a module, choose M here: the module
64 will be called pwm-apple.
65
66config PWM_ATMEL
67 tristate "Atmel PWM support"
68 depends on ARCH_AT91 || COMPILE_TEST
69 depends on HAS_IOMEM && OF
70 help
71 Generic PWM framework driver for Atmel SoC.
72
73 To compile this driver as a module, choose M here: the module
74 will be called pwm-atmel.
75
76config PWM_ATMEL_HLCDC_PWM
77 tristate "Atmel HLCDC PWM support"
78 depends on MFD_ATMEL_HLCDC
79 depends on HAVE_CLK
80 help
81 Generic PWM framework driver for the PWM output of the HLCDC
82 (Atmel High-end LCD Controller). This PWM output is mainly used
83 to control the LCD backlight.
84
85 To compile this driver as a module, choose M here: the module
86 will be called pwm-atmel-hlcdc.
87
88config PWM_ATMEL_TCB
89 tristate "Atmel TC Block PWM support"
90 depends on OF
91 select REGMAP_MMIO
92 help
93 Generic PWM framework driver for Atmel Timer Counter Block.
94
95 A Timer Counter Block provides 6 PWM devices grouped by 2.
96 Devices in a given group must have the same period.
97
98 To compile this driver as a module, choose M here: the module
99 will be called pwm-atmel-tcb.
100
101config PWM_BCM_IPROC
102 tristate "iProc PWM support"
103 depends on ARCH_BCM_IPROC || COMPILE_TEST
104 depends on COMMON_CLK && HAS_IOMEM
105 default ARCH_BCM_IPROC
106 help
107 Generic PWM framework driver for Broadcom iProc PWM block. This
108 block is used in Broadcom iProc SoC's.
109
110 To compile this driver as a module, choose M here: the module
111 will be called pwm-bcm-iproc.
112
113config PWM_BCM_KONA
114 tristate "Kona PWM support"
115 depends on ARCH_BCM_MOBILE || ARCH_BCM_CYGNUS || COMPILE_TEST
116 depends on HAVE_CLK && HAS_IOMEM
117 default ARCH_BCM_MOBILE || ARCH_BCM_CYGNUS
118 help
119 Generic PWM framework driver for Broadcom Kona PWM block.
120
121 To compile this driver as a module, choose M here: the module
122 will be called pwm-bcm-kona.
123
124config PWM_BCM2835
125 tristate "BCM2835 PWM support"
126 depends on ARCH_BCM2835 || ARCH_BRCMSTB || COMPILE_TEST
127 depends on HAS_IOMEM
128 help
129 PWM framework driver for BCM2835 controller (Raspberry Pi)
130
131 To compile this driver as a module, choose M here: the module
132 will be called pwm-bcm2835.
133
134config PWM_BERLIN
135 tristate "Marvell Berlin PWM support"
136 depends on ARCH_BERLIN || COMPILE_TEST
137 depends on HAS_IOMEM
138 help
139 PWM framework driver for Marvell Berlin SoCs.
140
141 To compile this driver as a module, choose M here: the module
142 will be called pwm-berlin.
143
144config PWM_BRCMSTB
145 tristate "Broadcom STB PWM support"
146 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
147 depends on HAS_IOMEM
148 help
149 Generic PWM framework driver for the Broadcom Set-top-Box
150 SoCs (BCM7xxx).
151
152 To compile this driver as a module, choose M Here: the module
153 will be called pwm-brcmstb.c.
154
155config PWM_CLK
156 tristate "Clock based PWM support"
157 depends on HAVE_CLK || COMPILE_TEST
158 help
159 Generic PWM framework driver for outputs that can be
160 muxed to clocks.
161
162 To compile this driver as a module, choose M here: the module
163 will be called pwm-clk.
164
165config PWM_CLPS711X
166 tristate "CLPS711X PWM support"
167 depends on ARCH_CLPS711X || COMPILE_TEST
168 depends on HAS_IOMEM
169 help
170 Generic PWM framework driver for Cirrus Logic CLPS711X.
171
172 To compile this driver as a module, choose M here: the module
173 will be called pwm-clps711x.
174
175config PWM_CRC
176 tristate "Intel Crystalcove (CRC) PWM support"
177 depends on INTEL_SOC_PMIC
178 help
179 Generic PWM framework driver for Crystalcove (CRC) PMIC based PWM
180 control.
181
182config PWM_CROS_EC
183 tristate "ChromeOS EC PWM driver"
184 depends on CROS_EC
185 help
186 PWM driver for exposing a PWM attached to the ChromeOS Embedded
187 Controller.
188
189config PWM_DWC_CORE
190 tristate
191 depends on HAS_IOMEM
192 help
193 PWM driver for Synopsys DWC PWM Controller.
194
195 To compile this driver as a module, build the dependecies as
196 modules, this will be called pwm-dwc-core.
197
198config PWM_DWC
199 tristate "DesignWare PWM Controller (PCI bus)"
200 depends on HAS_IOMEM && PCI
201 select PWM_DWC_CORE
202 help
203 PWM driver for Synopsys DWC PWM Controller attached to a PCI bus.
204
205 To compile this driver as a module, choose M here: the module
206 will be called pwm-dwc.
207
208config PWM_EP93XX
209 tristate "Cirrus Logic EP93xx PWM support"
210 depends on ARCH_EP93XX || COMPILE_TEST
211 depends on HAS_IOMEM
212 help
213 Generic PWM framework driver for Cirrus Logic EP93xx.
214
215 To compile this driver as a module, choose M here: the module
216 will be called pwm-ep93xx.
217
218config PWM_FSL_FTM
219 tristate "Freescale FlexTimer Module (FTM) PWM support"
220 depends on HAS_IOMEM
221 depends on OF
222 select REGMAP_MMIO
223 help
224 Generic FTM PWM framework driver for Freescale VF610 and
225 Layerscape LS-1 SoCs.
226
227 To compile this driver as a module, choose M here: the module
228 will be called pwm-fsl-ftm.
229
230config PWM_HIBVT
231 tristate "HiSilicon BVT PWM support"
232 depends on ARCH_HISI || COMPILE_TEST
233 depends on HAS_IOMEM
234 help
235 Generic PWM framework driver for HiSilicon BVT SoCs.
236
237 To compile this driver as a module, choose M here: the module
238 will be called pwm-hibvt.
239
240config PWM_IMG
241 tristate "Imagination Technologies PWM driver"
242 depends on HAS_IOMEM
243 depends on MFD_SYSCON
244 depends on COMMON_CLK
245 depends on MIPS || COMPILE_TEST
246 help
247 Generic PWM framework driver for Imagination Technologies
248 PWM block which supports 4 channels.
249
250 To compile this driver as a module, choose M here: the module
251 will be called pwm-img
252
253config PWM_IMX1
254 tristate "i.MX1 PWM support"
255 depends on ARCH_MXC || COMPILE_TEST
256 depends on HAS_IOMEM
257 help
258 Generic PWM framework driver for i.MX1 and i.MX21
259
260 To compile this driver as a module, choose M here: the module
261 will be called pwm-imx1.
262
263config PWM_IMX27
264 tristate "i.MX27 PWM support"
265 depends on ARCH_MXC || COMPILE_TEST
266 depends on HAS_IOMEM
267 help
268 Generic PWM framework driver for i.MX27 and later i.MX SoCs.
269
270 To compile this driver as a module, choose M here: the module
271 will be called pwm-imx27.
272
273config PWM_IMX_TPM
274 tristate "i.MX TPM PWM support"
275 depends on ARCH_MXC || COMPILE_TEST
276 depends on HAVE_CLK && HAS_IOMEM
277 help
278 Generic PWM framework driver for i.MX7ULP TPM module, TPM's full
279 name is Low Power Timer/Pulse Width Modulation Module.
280
281 To compile this driver as a module, choose M here: the module
282 will be called pwm-imx-tpm.
283
284config PWM_INTEL_LGM
285 tristate "Intel LGM PWM support"
286 depends on HAS_IOMEM
287 depends on (OF && X86) || COMPILE_TEST
288 select REGMAP_MMIO
289 help
290 Generic PWM fan controller driver for LGM SoC.
291
292 To compile this driver as a module, choose M here: the module
293 will be called pwm-intel-lgm.
294
295config PWM_IQS620A
296 tristate "Azoteq IQS620A PWM support"
297 depends on MFD_IQS62X || COMPILE_TEST
298 help
299 Generic PWM framework driver for the Azoteq IQS620A multi-function
300 sensor.
301
302 To compile this driver as a module, choose M here: the module will
303 be called pwm-iqs620a.
304
305config PWM_JZ4740
306 tristate "Ingenic JZ47xx PWM support"
307 depends on MACH_INGENIC || COMPILE_TEST
308 depends on COMMON_CLK && OF
309 select MFD_SYSCON
310 help
311 Generic PWM framework driver for Ingenic JZ47xx based
312 machines.
313
314 To compile this driver as a module, choose M here: the module
315 will be called pwm-jz4740.
316
317config PWM_KEEMBAY
318 tristate "Intel Keem Bay PWM driver"
319 depends on ARCH_KEEMBAY || COMPILE_TEST
320 depends on COMMON_CLK && HAS_IOMEM
321 help
322 The platform driver for Intel Keem Bay PWM controller.
323
324 To compile this driver as a module, choose M here: the module
325 will be called pwm-keembay.
326
327config PWM_LP3943
328 tristate "TI/National Semiconductor LP3943 PWM support"
329 depends on MFD_LP3943
330 help
331 Generic PWM framework driver for LP3943 which supports two PWM
332 channels.
333
334 To compile this driver as a module, choose M here: the module
335 will be called pwm-lp3943.
336
337config PWM_LPC18XX_SCT
338 tristate "LPC18xx/43xx PWM/SCT support"
339 depends on ARCH_LPC18XX || COMPILE_TEST
340 depends on HAS_IOMEM
341 help
342 Generic PWM framework driver for NXP LPC18xx PWM/SCT which
343 supports 16 channels.
344 A maximum of 15 channels can be requested simultaneously and
345 must have the same period.
346
347 To compile this driver as a module, choose M here: the module
348 will be called pwm-lpc18xx-sct.
349
350config PWM_LPC32XX
351 tristate "LPC32XX PWM support"
352 depends on ARCH_LPC32XX || COMPILE_TEST
353 depends on HAS_IOMEM
354 help
355 Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
356 PWM controllers.
357
358 To compile this driver as a module, choose M here: the module
359 will be called pwm-lpc32xx.
360
361config PWM_LPSS
362 depends on HAS_IOMEM
363 tristate
364
365config PWM_LPSS_PCI
366 tristate "Intel LPSS PWM PCI driver"
367 depends on X86 || COMPILE_TEST
368 depends on HAS_IOMEM && PCI
369 select PWM_LPSS
370 help
371 The PCI driver for Intel Low Power Subsystem PWM controller.
372
373 To compile this driver as a module, choose M here: the module
374 will be called pwm-lpss-pci.
375
376config PWM_LPSS_PLATFORM
377 tristate "Intel LPSS PWM platform driver"
378 depends on (X86 && ACPI) || COMPILE_TEST
379 depends on HAS_IOMEM
380 select PWM_LPSS
381 help
382 The platform driver for Intel Low Power Subsystem PWM controller.
383
384 To compile this driver as a module, choose M here: the module
385 will be called pwm-lpss-platform.
386
387config PWM_MESON
388 tristate "Amlogic Meson PWM driver"
389 depends on ARCH_MESON || COMPILE_TEST
390 depends on COMMON_CLK && HAS_IOMEM
391 help
392 The platform driver for Amlogic Meson PWM controller.
393
394 To compile this driver as a module, choose M here: the module
395 will be called pwm-meson.
396
397config PWM_MTK_DISP
398 tristate "MediaTek display PWM driver"
399 depends on ARCH_MEDIATEK || COMPILE_TEST
400 depends on HAS_IOMEM
401 help
402 Generic PWM framework driver for MediaTek disp-pwm device.
403 The PWM is used to control the backlight brightness for display.
404
405 To compile this driver as a module, choose M here: the module
406 will be called pwm-mtk-disp.
407
408config PWM_MEDIATEK
409 tristate "MediaTek PWM support"
410 depends on ARCH_MEDIATEK || RALINK || COMPILE_TEST
411 depends on HAS_IOMEM
412 help
413 Generic PWM framework driver for Mediatek ARM SoC.
414
415 To compile this driver as a module, choose M here: the module
416 will be called pwm-mediatek.
417
418config PWM_MICROCHIP_CORE
419 tristate "Microchip corePWM PWM support"
420 depends on ARCH_MICROCHIP_POLARFIRE || COMPILE_TEST
421 depends on HAS_IOMEM && OF
422 help
423 PWM driver for Microchip FPGA soft IP core.
424
425 To compile this driver as a module, choose M here: the module
426 will be called pwm-microchip-core.
427
428config PWM_MXS
429 tristate "Freescale MXS PWM support"
430 depends on ARCH_MXS || COMPILE_TEST
431 depends on HAS_IOMEM && OF
432 select STMP_DEVICE
433 help
434 Generic PWM framework driver for Freescale MXS.
435
436 To compile this driver as a module, choose M here: the module
437 will be called pwm-mxs.
438
439config PWM_NTXEC
440 tristate "Netronix embedded controller PWM support"
441 depends on MFD_NTXEC
442 help
443 Say yes here if you want to support the PWM output of the embedded
444 controller found in certain e-book readers designed by the original
445 design manufacturer Netronix.
446
447config PWM_OMAP_DMTIMER
448 tristate "OMAP Dual-Mode Timer PWM support"
449 depends on OF
450 depends on OMAP_DM_TIMER || COMPILE_TEST
451 help
452 Generic PWM framework driver for OMAP Dual-Mode Timer PWM output
453
454 To compile this driver as a module, choose M here: the module
455 will be called pwm-omap-dmtimer
456
457config PWM_PCA9685
458 tristate "NXP PCA9685 PWM driver"
459 depends on I2C
460 select REGMAP_I2C
461 help
462 Generic PWM framework driver for NXP PCA9685 LED controller.
463
464 To compile this driver as a module, choose M here: the module
465 will be called pwm-pca9685.
466
467config PWM_PXA
468 tristate "PXA PWM support"
469 depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST
470 depends on HAS_IOMEM
471 help
472 Generic PWM framework driver for PXA.
473
474 To compile this driver as a module, choose M here: the module
475 will be called pwm-pxa.
476
477config PWM_RASPBERRYPI_POE
478 tristate "Raspberry Pi Firwmware PoE Hat PWM support"
479 # Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only
480 # happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE.
481 depends on RASPBERRYPI_FIRMWARE || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE)
482 help
483 Enable Raspberry Pi firmware controller PWM bus used to control the
484 official RPI PoE hat
485
486config PWM_RCAR
487 tristate "Renesas R-Car PWM support"
488 depends on ARCH_RENESAS || COMPILE_TEST
489 depends on HAS_IOMEM
490 help
491 This driver exposes the PWM Timer controller found in Renesas
492 R-Car chips through the PWM API.
493
494 To compile this driver as a module, choose M here: the module
495 will be called pwm-rcar.
496
497config PWM_RENESAS_TPU
498 tristate "Renesas TPU PWM support"
499 depends on ARCH_RENESAS || COMPILE_TEST
500 depends on HAS_IOMEM
501 help
502 This driver exposes the Timer Pulse Unit (TPU) PWM controller found
503 in Renesas chips through the PWM API.
504
505 To compile this driver as a module, choose M here: the module
506 will be called pwm-renesas-tpu.
507
508config PWM_ROCKCHIP
509 tristate "Rockchip PWM support"
510 depends on ARCH_ROCKCHIP || COMPILE_TEST
511 depends on HAS_IOMEM
512 help
513 Generic PWM framework driver for the PWM controller found on
514 Rockchip SoCs.
515
516config PWM_RZ_MTU3
517 tristate "Renesas RZ/G2L MTU3a PWM Timer support"
518 depends on RZ_MTU3
519 depends on HAS_IOMEM
520 help
521 This driver exposes the MTU3a PWM Timer controller found in Renesas
522 RZ/G2L like chips through the PWM API.
523
524 To compile this driver as a module, choose M here: the module
525 will be called pwm-rz-mtu3.
526
527config PWM_SAMSUNG
528 tristate "Samsung PWM support"
529 depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST
530 depends on HAS_IOMEM
531 help
532 Generic PWM framework driver for Samsung S3C24xx, S3C64xx, S5Pv210
533 and Exynos SoCs.
534 Choose Y here only if you build for such Samsung SoC.
535
536 To compile this driver as a module, choose M here: the module
537 will be called pwm-samsung.
538
539config PWM_SIFIVE
540 tristate "SiFive PWM support"
541 depends on OF
542 depends on COMMON_CLK && HAS_IOMEM
543 depends on RISCV || COMPILE_TEST
544 help
545 Generic PWM framework driver for SiFive SoCs.
546
547 To compile this driver as a module, choose M here: the module
548 will be called pwm-sifive.
549
550config PWM_SL28CPLD
551 tristate "Kontron sl28cpld PWM support"
552 depends on MFD_SL28CPLD || COMPILE_TEST
553 help
554 Generic PWM framework driver for board management controller
555 found on the Kontron sl28 CPLD.
556
557 To compile this driver as a module, choose M here: the module
558 will be called pwm-sl28cpld.
559
560config PWM_SPEAR
561 tristate "STMicroelectronics SPEAr PWM support"
562 depends on PLAT_SPEAR || COMPILE_TEST
563 depends on HAS_IOMEM && OF
564 help
565 Generic PWM framework driver for the PWM controller on ST
566 SPEAr SoCs.
567
568 To compile this driver as a module, choose M here: the module
569 will be called pwm-spear.
570
571config PWM_SPRD
572 tristate "Spreadtrum PWM support"
573 depends on ARCH_SPRD || COMPILE_TEST
574 depends on HAS_IOMEM
575 help
576 Generic PWM framework driver for the PWM controller on
577 Spreadtrum SoCs.
578
579 To compile this driver as a module, choose M here: the module
580 will be called pwm-sprd.
581
582config PWM_STI
583 tristate "STiH4xx PWM support"
584 depends on ARCH_STI || COMPILE_TEST
585 depends on HAS_IOMEM && OF
586 help
587 Generic PWM framework driver for STiH4xx SoCs.
588
589 To compile this driver as a module, choose M here: the module
590 will be called pwm-sti.
591
592config PWM_STM32
593 tristate "STMicroelectronics STM32 PWM"
594 depends on MFD_STM32_TIMERS || COMPILE_TEST
595 help
596 Generic PWM framework driver for STM32 SoCs.
597
598 To compile this driver as a module, choose M here: the module
599 will be called pwm-stm32.
600
601config PWM_STM32_LP
602 tristate "STMicroelectronics STM32 PWM LP"
603 depends on MFD_STM32_LPTIMER || COMPILE_TEST
604 help
605 Generic PWM framework driver for STMicroelectronics STM32 SoCs
606 with Low-Power Timer (LPTIM).
607
608 To compile this driver as a module, choose M here: the module
609 will be called pwm-stm32-lp.
610
611config PWM_STMPE
612 bool "STMPE expander PWM export"
613 depends on MFD_STMPE
614 help
615 This enables support for the PWMs found in the STMPE I/O
616 expanders.
617
618config PWM_SUN4I
619 tristate "Allwinner PWM support"
620 depends on ARCH_SUNXI || COMPILE_TEST
621 depends on HAS_IOMEM && COMMON_CLK
622 help
623 Generic PWM framework driver for Allwinner SoCs.
624
625 To compile this driver as a module, choose M here: the module
626 will be called pwm-sun4i.
627
628config PWM_SUNPLUS
629 tristate "Sunplus PWM support"
630 depends on ARCH_SUNPLUS || COMPILE_TEST
631 depends on HAS_IOMEM && OF
632 help
633 Generic PWM framework driver for the PWM controller on
634 Sunplus SoCs.
635
636 To compile this driver as a module, choose M here: the module
637 will be called pwm-sunplus.
638
639config PWM_TEGRA
640 tristate "NVIDIA Tegra PWM support"
641 depends on ARCH_TEGRA || COMPILE_TEST
642 depends on HAS_IOMEM
643 help
644 Generic PWM framework driver for the PWFM controller found on NVIDIA
645 Tegra SoCs.
646
647 To compile this driver as a module, choose M here: the module
648 will be called pwm-tegra.
649
650config PWM_TIECAP
651 tristate "ECAP PWM support"
652 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX || ARCH_KEYSTONE || ARCH_K3 || COMPILE_TEST
653 depends on HAS_IOMEM
654 help
655 PWM driver support for the ECAP APWM controller found on TI SOCs
656
657 To compile this driver as a module, choose M here: the module
658 will be called pwm-tiecap.
659
660config PWM_TIEHRPWM
661 tristate "EHRPWM PWM support"
662 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX || ARCH_K3 || COMPILE_TEST
663 depends on HAS_IOMEM
664 help
665 PWM driver support for the EHRPWM controller found on TI SOCs
666
667 To compile this driver as a module, choose M here: the module
668 will be called pwm-tiehrpwm.
669
670config PWM_TWL
671 tristate "TWL4030/6030 PWM support"
672 depends on TWL4030_CORE
673 help
674 Generic PWM framework driver for TWL4030/6030.
675
676 To compile this driver as a module, choose M here: the module
677 will be called pwm-twl.
678
679config PWM_TWL_LED
680 tristate "TWL4030/6030 PWM support for LED drivers"
681 depends on TWL4030_CORE
682 help
683 Generic PWM framework driver for TWL4030/6030 LED terminals.
684
685 To compile this driver as a module, choose M here: the module
686 will be called pwm-twl-led.
687
688config PWM_VISCONTI
689 tristate "Toshiba Visconti PWM support"
690 depends on ARCH_VISCONTI || COMPILE_TEST
691 help
692 PWM Subsystem driver support for Toshiba Visconti SoCs.
693
694 To compile this driver as a module, choose M here: the module
695 will be called pwm-visconti.
696
697config PWM_VT8500
698 tristate "vt8500 PWM support"
699 depends on ARCH_VT8500 || COMPILE_TEST
700 depends on HAS_IOMEM
701 help
702 Generic PWM framework driver for vt8500.
703
704 To compile this driver as a module, choose M here: the module
705 will be called pwm-vt8500.
706
707config PWM_XILINX
708 tristate "Xilinx AXI Timer PWM support"
709 depends on OF_ADDRESS
710 depends on COMMON_CLK
711 select REGMAP_MMIO
712 help
713 PWM driver for Xilinx LogiCORE IP AXI timers. This timer is
714 typically a soft core which may be present in Xilinx FPGAs.
715 This device may also be present in Microblaze soft processors.
716 If you don't have this IP in your design, choose N.
717
718 To compile this driver as a module, choose M here: the module
719 will be called pwm-xilinx.
720
721endif
1# SPDX-License-Identifier: GPL-2.0-only
2menuconfig PWM
3 bool "Pulse-Width Modulation (PWM) Support"
4 help
5 Generic Pulse-Width Modulation (PWM) support.
6
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
12 display backlights.
13
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.
20
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.
27
28 If unsure, say no.
29
30if PWM
31
32config PWM_DEBUG
33 bool "PWM lowlevel drivers additional checks and debug messages"
34 depends on DEBUG_KERNEL
35 help
36 This option enables some additional checks to help lowlevel driver
37 authors to get their callbacks implemented correctly.
38 It is expected to introduce some runtime overhead and diagnostic
39 output to the kernel log, so only enable while working on a driver.
40
41config PWM_AB8500
42 tristate "AB8500 PWM support"
43 depends on AB8500_CORE && ARCH_U8500
44 help
45 Generic PWM framework driver for Analog Baseband AB8500.
46
47 To compile this driver as a module, choose M here: the module
48 will be called pwm-ab8500.
49
50config PWM_ADP5585
51 tristate "ADP5585 PWM support"
52 depends on MFD_ADP5585
53 help
54 This option enables support for the PWM function found in the Analog
55 Devices ADP5585.
56
57config PWM_APPLE
58 tristate "Apple SoC PWM support"
59 depends on ARCH_APPLE || COMPILE_TEST
60 help
61 Generic PWM framework driver for PWM controller present on
62 Apple SoCs
63
64 Say Y here if you have an ARM Apple laptop, otherwise say N
65
66 To compile this driver as a module, choose M here: the module
67 will be called pwm-apple.
68
69config PWM_ATMEL
70 tristate "Atmel PWM support"
71 depends on ARCH_AT91 || COMPILE_TEST
72 depends on HAS_IOMEM && OF
73 help
74 Generic PWM framework driver for Atmel SoC.
75
76 To compile this driver as a module, choose M here: the module
77 will be called pwm-atmel.
78
79config PWM_ATMEL_HLCDC_PWM
80 tristate "Atmel HLCDC PWM support"
81 depends on MFD_ATMEL_HLCDC
82 depends on HAVE_CLK
83 help
84 Generic PWM framework driver for the PWM output of the HLCDC
85 (Atmel High-end LCD Controller). This PWM output is mainly used
86 to control the LCD backlight.
87
88 To compile this driver as a module, choose M here: the module
89 will be called pwm-atmel-hlcdc.
90
91config PWM_ATMEL_TCB
92 tristate "Atmel TC Block PWM support"
93 depends on OF
94 select REGMAP_MMIO
95 help
96 Generic PWM framework driver for Atmel Timer Counter Block.
97
98 A Timer Counter Block provides 6 PWM devices grouped by 2.
99 Devices in a given group must have the same period.
100
101 To compile this driver as a module, choose M here: the module
102 will be called pwm-atmel-tcb.
103
104config PWM_AXI_PWMGEN
105 tristate "Analog Devices AXI PWM generator"
106 depends on MICROBLAZE || NIOS2 || ARCH_ZYNQ || ARCH_ZYNQMP || ARCH_INTEL_SOCFPGA || COMPILE_TEST
107 select REGMAP_MMIO
108 help
109 This enables support for the Analog Devices AXI PWM generator.
110
111 This is a configurable PWM generator with variable pulse width and
112 period.
113
114 To compile this driver as a module, choose M here: the module will be
115 called pwm-axi-pwmgen.
116
117config PWM_BCM_IPROC
118 tristate "iProc PWM support"
119 depends on ARCH_BCM_IPROC || COMPILE_TEST
120 depends on COMMON_CLK && HAS_IOMEM
121 default ARCH_BCM_IPROC
122 help
123 Generic PWM framework driver for Broadcom iProc PWM block. This
124 block is used in Broadcom iProc SoC's.
125
126 To compile this driver as a module, choose M here: the module
127 will be called pwm-bcm-iproc.
128
129config PWM_BCM_KONA
130 tristate "Kona PWM support"
131 depends on ARCH_BCM_MOBILE || ARCH_BCM_CYGNUS || COMPILE_TEST
132 depends on HAVE_CLK && HAS_IOMEM
133 default ARCH_BCM_MOBILE || ARCH_BCM_CYGNUS
134 help
135 Generic PWM framework driver for Broadcom Kona PWM block.
136
137 To compile this driver as a module, choose M here: the module
138 will be called pwm-bcm-kona.
139
140config PWM_BCM2835
141 tristate "BCM2835 PWM support"
142 depends on ARCH_BCM2835 || ARCH_BRCMSTB || COMPILE_TEST
143 depends on HAS_IOMEM
144 help
145 PWM framework driver for BCM2835 controller (Raspberry Pi)
146
147 To compile this driver as a module, choose M here: the module
148 will be called pwm-bcm2835.
149
150config PWM_BERLIN
151 tristate "Marvell Berlin PWM support"
152 depends on ARCH_BERLIN || COMPILE_TEST
153 depends on HAS_IOMEM
154 help
155 PWM framework driver for Marvell Berlin SoCs.
156
157 To compile this driver as a module, choose M here: the module
158 will be called pwm-berlin.
159
160config PWM_BRCMSTB
161 tristate "Broadcom STB PWM support"
162 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
163 depends on HAS_IOMEM
164 help
165 Generic PWM framework driver for the Broadcom Set-top-Box
166 SoCs (BCM7xxx).
167
168 To compile this driver as a module, choose M Here: the module
169 will be called pwm-brcmstb.c.
170
171config PWM_CLK
172 tristate "Clock based PWM support"
173 depends on HAVE_CLK || COMPILE_TEST
174 help
175 Generic PWM framework driver for outputs that can be
176 muxed to clocks.
177
178 To compile this driver as a module, choose M here: the module
179 will be called pwm-clk.
180
181config PWM_CLPS711X
182 tristate "CLPS711X PWM support"
183 depends on ARCH_CLPS711X || COMPILE_TEST
184 depends on HAS_IOMEM
185 help
186 Generic PWM framework driver for Cirrus Logic CLPS711X.
187
188 To compile this driver as a module, choose M here: the module
189 will be called pwm-clps711x.
190
191config PWM_CRC
192 tristate "Intel Crystalcove (CRC) PWM support"
193 depends on INTEL_SOC_PMIC
194 help
195 Generic PWM framework driver for Crystalcove (CRC) PMIC based PWM
196 control.
197
198config PWM_CROS_EC
199 tristate "ChromeOS EC PWM driver"
200 depends on CROS_EC
201 help
202 PWM driver for exposing a PWM attached to the ChromeOS Embedded
203 Controller.
204
205config PWM_DWC_CORE
206 tristate
207 depends on HAS_IOMEM
208 help
209 PWM driver for Synopsys DWC PWM Controller.
210
211 To compile this driver as a module, build the dependecies as
212 modules, this will be called pwm-dwc-core.
213
214config PWM_DWC
215 tristate "DesignWare PWM Controller (PCI bus)"
216 depends on HAS_IOMEM && PCI
217 select PWM_DWC_CORE
218 help
219 PWM driver for Synopsys DWC PWM Controller attached to a PCI bus.
220
221 To compile this driver as a module, choose M here: the module
222 will be called pwm-dwc.
223
224config PWM_EP93XX
225 tristate "Cirrus Logic EP93xx PWM support"
226 depends on ARCH_EP93XX || COMPILE_TEST
227 depends on HAS_IOMEM
228 help
229 Generic PWM framework driver for Cirrus Logic EP93xx.
230
231 To compile this driver as a module, choose M here: the module
232 will be called pwm-ep93xx.
233
234config PWM_FSL_FTM
235 tristate "Freescale FlexTimer Module (FTM) PWM support"
236 depends on HAS_IOMEM
237 depends on OF
238 select REGMAP_MMIO
239 help
240 Generic FTM PWM framework driver for Freescale VF610 and
241 Layerscape LS-1 SoCs.
242
243 To compile this driver as a module, choose M here: the module
244 will be called pwm-fsl-ftm.
245
246config PWM_GPIO
247 tristate "GPIO PWM support"
248 depends on GPIOLIB
249 depends on HIGH_RES_TIMERS
250 help
251 Generic PWM framework driver for software PWM toggling a GPIO pin
252 from kernel high-resolution timers.
253
254 To compile this driver as a module, choose M here: the module
255 will be called pwm-gpio.
256
257config PWM_HIBVT
258 tristate "HiSilicon BVT PWM support"
259 depends on ARCH_HISI || COMPILE_TEST
260 depends on HAS_IOMEM
261 help
262 Generic PWM framework driver for HiSilicon BVT SoCs.
263
264 To compile this driver as a module, choose M here: the module
265 will be called pwm-hibvt.
266
267config PWM_IMG
268 tristate "Imagination Technologies PWM driver"
269 depends on HAS_IOMEM
270 depends on MFD_SYSCON
271 depends on COMMON_CLK
272 depends on MIPS || COMPILE_TEST
273 help
274 Generic PWM framework driver for Imagination Technologies
275 PWM block which supports 4 channels.
276
277 To compile this driver as a module, choose M here: the module
278 will be called pwm-img
279
280config PWM_IMX1
281 tristate "i.MX1 PWM support"
282 depends on ARCH_MXC || COMPILE_TEST
283 depends on HAS_IOMEM
284 help
285 Generic PWM framework driver for i.MX1 and i.MX21
286
287 To compile this driver as a module, choose M here: the module
288 will be called pwm-imx1.
289
290config PWM_IMX27
291 tristate "i.MX27 PWM support"
292 depends on ARCH_MXC || COMPILE_TEST
293 depends on HAS_IOMEM
294 help
295 Generic PWM framework driver for i.MX27 and later i.MX SoCs.
296
297 To compile this driver as a module, choose M here: the module
298 will be called pwm-imx27.
299
300config PWM_IMX_TPM
301 tristate "i.MX TPM PWM support"
302 depends on ARCH_MXC || COMPILE_TEST
303 depends on HAVE_CLK && HAS_IOMEM
304 help
305 Generic PWM framework driver for i.MX7ULP TPM module, TPM's full
306 name is Low Power Timer/Pulse Width Modulation Module.
307
308 To compile this driver as a module, choose M here: the module
309 will be called pwm-imx-tpm.
310
311config PWM_INTEL_LGM
312 tristate "Intel LGM PWM support"
313 depends on HAS_IOMEM
314 depends on (OF && X86) || COMPILE_TEST
315 select REGMAP_MMIO
316 help
317 Generic PWM fan controller driver for LGM SoC.
318
319 To compile this driver as a module, choose M here: the module
320 will be called pwm-intel-lgm.
321
322config PWM_IQS620A
323 tristate "Azoteq IQS620A PWM support"
324 depends on MFD_IQS62X || COMPILE_TEST
325 help
326 Generic PWM framework driver for the Azoteq IQS620A multi-function
327 sensor.
328
329 To compile this driver as a module, choose M here: the module will
330 be called pwm-iqs620a.
331
332config PWM_JZ4740
333 tristate "Ingenic JZ47xx PWM support"
334 depends on MACH_INGENIC || COMPILE_TEST
335 depends on COMMON_CLK && OF
336 select MFD_SYSCON
337 help
338 Generic PWM framework driver for Ingenic JZ47xx based
339 machines.
340
341 To compile this driver as a module, choose M here: the module
342 will be called pwm-jz4740.
343
344config PWM_KEEMBAY
345 tristate "Intel Keem Bay PWM driver"
346 depends on ARCH_KEEMBAY || COMPILE_TEST
347 depends on COMMON_CLK && HAS_IOMEM
348 help
349 The platform driver for Intel Keem Bay PWM controller.
350
351 To compile this driver as a module, choose M here: the module
352 will be called pwm-keembay.
353
354config PWM_LP3943
355 tristate "TI/National Semiconductor LP3943 PWM support"
356 depends on MFD_LP3943
357 help
358 Generic PWM framework driver for LP3943 which supports two PWM
359 channels.
360
361 To compile this driver as a module, choose M here: the module
362 will be called pwm-lp3943.
363
364config PWM_LPC18XX_SCT
365 tristate "LPC18xx/43xx PWM/SCT support"
366 depends on ARCH_LPC18XX || COMPILE_TEST
367 depends on HAS_IOMEM
368 help
369 Generic PWM framework driver for NXP LPC18xx PWM/SCT which
370 supports 16 channels.
371 A maximum of 15 channels can be requested simultaneously and
372 must have the same period.
373
374 To compile this driver as a module, choose M here: the module
375 will be called pwm-lpc18xx-sct.
376
377config PWM_LPC32XX
378 tristate "LPC32XX PWM support"
379 depends on ARCH_LPC32XX || COMPILE_TEST
380 depends on HAS_IOMEM
381 help
382 Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
383 PWM controllers.
384
385 To compile this driver as a module, choose M here: the module
386 will be called pwm-lpc32xx.
387
388config PWM_LPSS
389 depends on HAS_IOMEM
390 tristate
391
392config PWM_LPSS_PCI
393 tristate "Intel LPSS PWM PCI driver"
394 depends on X86 || COMPILE_TEST
395 depends on HAS_IOMEM && PCI
396 select PWM_LPSS
397 help
398 The PCI driver for Intel Low Power Subsystem PWM controller.
399
400 To compile this driver as a module, choose M here: the module
401 will be called pwm-lpss-pci.
402
403config PWM_LPSS_PLATFORM
404 tristate "Intel LPSS PWM platform driver"
405 depends on (X86 && ACPI) || COMPILE_TEST
406 depends on HAS_IOMEM
407 select PWM_LPSS
408 help
409 The platform driver for Intel Low Power Subsystem PWM controller.
410
411 To compile this driver as a module, choose M here: the module
412 will be called pwm-lpss-platform.
413
414config PWM_MESON
415 tristate "Amlogic Meson PWM driver"
416 depends on ARCH_MESON || COMPILE_TEST
417 depends on COMMON_CLK && HAS_IOMEM
418 help
419 The platform driver for Amlogic Meson PWM controller.
420
421 To compile this driver as a module, choose M here: the module
422 will be called pwm-meson.
423
424config PWM_MTK_DISP
425 tristate "MediaTek display PWM driver"
426 depends on ARCH_MEDIATEK || COMPILE_TEST
427 depends on HAS_IOMEM
428 help
429 Generic PWM framework driver for MediaTek disp-pwm device.
430 The PWM is used to control the backlight brightness for display.
431
432 To compile this driver as a module, choose M here: the module
433 will be called pwm-mtk-disp.
434
435config PWM_MEDIATEK
436 tristate "MediaTek PWM support"
437 depends on ARCH_MEDIATEK || RALINK || COMPILE_TEST
438 depends on HAS_IOMEM
439 help
440 Generic PWM framework driver for Mediatek ARM SoC.
441
442 To compile this driver as a module, choose M here: the module
443 will be called pwm-mediatek.
444
445config PWM_MICROCHIP_CORE
446 tristate "Microchip corePWM PWM support"
447 depends on ARCH_MICROCHIP_POLARFIRE || COMPILE_TEST
448 depends on HAS_IOMEM && OF
449 help
450 PWM driver for Microchip FPGA soft IP core.
451
452 To compile this driver as a module, choose M here: the module
453 will be called pwm-microchip-core.
454
455config PWM_MXS
456 tristate "Freescale MXS PWM support"
457 depends on ARCH_MXS || COMPILE_TEST
458 depends on HAS_IOMEM && OF
459 select STMP_DEVICE
460 help
461 Generic PWM framework driver for Freescale MXS.
462
463 To compile this driver as a module, choose M here: the module
464 will be called pwm-mxs.
465
466config PWM_NTXEC
467 tristate "Netronix embedded controller PWM support"
468 depends on MFD_NTXEC
469 help
470 Say yes here if you want to support the PWM output of the embedded
471 controller found in certain e-book readers designed by the original
472 design manufacturer Netronix.
473
474config PWM_OMAP_DMTIMER
475 tristate "OMAP Dual-Mode Timer PWM support"
476 depends on OF
477 depends on OMAP_DM_TIMER || COMPILE_TEST
478 help
479 Generic PWM framework driver for OMAP Dual-Mode Timer PWM output
480
481 To compile this driver as a module, choose M here: the module
482 will be called pwm-omap-dmtimer
483
484config PWM_PCA9685
485 tristate "NXP PCA9685 PWM driver"
486 depends on I2C
487 select REGMAP_I2C
488 help
489 Generic PWM framework driver for NXP PCA9685 LED controller.
490
491 To compile this driver as a module, choose M here: the module
492 will be called pwm-pca9685.
493
494config PWM_PXA
495 tristate "PXA PWM support"
496 depends on ARCH_PXA || ARCH_MMP || COMPILE_TEST
497 depends on HAS_IOMEM
498 help
499 Generic PWM framework driver for PXA.
500
501 To compile this driver as a module, choose M here: the module
502 will be called pwm-pxa.
503
504config PWM_RASPBERRYPI_POE
505 tristate "Raspberry Pi Firwmware PoE Hat PWM support"
506 # Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only
507 # happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE.
508 depends on RASPBERRYPI_FIRMWARE || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE)
509 help
510 Enable Raspberry Pi firmware controller PWM bus used to control the
511 official RPI PoE hat
512
513config PWM_RCAR
514 tristate "Renesas R-Car PWM support"
515 depends on ARCH_RENESAS || COMPILE_TEST
516 depends on HAS_IOMEM
517 help
518 This driver exposes the PWM Timer controller found in Renesas
519 R-Car chips through the PWM API.
520
521 To compile this driver as a module, choose M here: the module
522 will be called pwm-rcar.
523
524config PWM_RENESAS_TPU
525 tristate "Renesas TPU PWM support"
526 depends on ARCH_RENESAS || COMPILE_TEST
527 depends on HAS_IOMEM
528 help
529 This driver exposes the Timer Pulse Unit (TPU) PWM controller found
530 in Renesas chips through the PWM API.
531
532 To compile this driver as a module, choose M here: the module
533 will be called pwm-renesas-tpu.
534
535config PWM_ROCKCHIP
536 tristate "Rockchip PWM support"
537 depends on ARCH_ROCKCHIP || COMPILE_TEST
538 depends on HAS_IOMEM
539 help
540 Generic PWM framework driver for the PWM controller found on
541 Rockchip SoCs.
542
543config PWM_RZ_MTU3
544 tristate "Renesas RZ/G2L MTU3a PWM Timer support"
545 depends on RZ_MTU3
546 depends on HAS_IOMEM
547 help
548 This driver exposes the MTU3a PWM Timer controller found in Renesas
549 RZ/G2L like chips through the PWM API.
550
551 To compile this driver as a module, choose M here: the module
552 will be called pwm-rz-mtu3.
553
554config PWM_SAMSUNG
555 tristate "Samsung PWM support"
556 depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST
557 depends on HAS_IOMEM
558 help
559 Generic PWM framework driver for Samsung S3C24xx, S3C64xx, S5Pv210
560 and Exynos SoCs.
561 Choose Y here only if you build for such Samsung SoC.
562
563 To compile this driver as a module, choose M here: the module
564 will be called pwm-samsung.
565
566config PWM_SIFIVE
567 tristate "SiFive PWM support"
568 depends on OF
569 depends on COMMON_CLK && HAS_IOMEM
570 depends on RISCV || COMPILE_TEST
571 help
572 Generic PWM framework driver for SiFive SoCs.
573
574 To compile this driver as a module, choose M here: the module
575 will be called pwm-sifive.
576
577config PWM_SL28CPLD
578 tristate "Kontron sl28cpld PWM support"
579 depends on MFD_SL28CPLD || COMPILE_TEST
580 help
581 Generic PWM framework driver for board management controller
582 found on the Kontron sl28 CPLD.
583
584 To compile this driver as a module, choose M here: the module
585 will be called pwm-sl28cpld.
586
587config PWM_SPEAR
588 tristate "STMicroelectronics SPEAr PWM support"
589 depends on PLAT_SPEAR || COMPILE_TEST
590 depends on HAS_IOMEM && OF
591 help
592 Generic PWM framework driver for the PWM controller on ST
593 SPEAr SoCs.
594
595 To compile this driver as a module, choose M here: the module
596 will be called pwm-spear.
597
598config PWM_SPRD
599 tristate "Spreadtrum PWM support"
600 depends on ARCH_SPRD || COMPILE_TEST
601 depends on HAS_IOMEM
602 help
603 Generic PWM framework driver for the PWM controller on
604 Spreadtrum SoCs.
605
606 To compile this driver as a module, choose M here: the module
607 will be called pwm-sprd.
608
609config PWM_STI
610 tristate "STiH4xx PWM support"
611 depends on ARCH_STI || COMPILE_TEST
612 depends on HAS_IOMEM && OF
613 help
614 Generic PWM framework driver for STiH4xx SoCs.
615
616 To compile this driver as a module, choose M here: the module
617 will be called pwm-sti.
618
619config PWM_STM32
620 tristate "STMicroelectronics STM32 PWM"
621 depends on MFD_STM32_TIMERS || COMPILE_TEST
622 help
623 Generic PWM framework driver for STM32 SoCs.
624
625 To compile this driver as a module, choose M here: the module
626 will be called pwm-stm32.
627
628config PWM_STM32_LP
629 tristate "STMicroelectronics STM32 PWM LP"
630 depends on MFD_STM32_LPTIMER || COMPILE_TEST
631 help
632 Generic PWM framework driver for STMicroelectronics STM32 SoCs
633 with Low-Power Timer (LPTIM).
634
635 To compile this driver as a module, choose M here: the module
636 will be called pwm-stm32-lp.
637
638config PWM_STMPE
639 bool "STMPE expander PWM export"
640 depends on MFD_STMPE
641 help
642 This enables support for the PWMs found in the STMPE I/O
643 expanders.
644
645config PWM_SUN4I
646 tristate "Allwinner PWM support"
647 depends on ARCH_SUNXI || COMPILE_TEST
648 depends on HAS_IOMEM && COMMON_CLK
649 help
650 Generic PWM framework driver for Allwinner SoCs.
651
652 To compile this driver as a module, choose M here: the module
653 will be called pwm-sun4i.
654
655config PWM_SUNPLUS
656 tristate "Sunplus PWM support"
657 depends on ARCH_SUNPLUS || COMPILE_TEST
658 depends on HAS_IOMEM && OF
659 help
660 Generic PWM framework driver for the PWM controller on
661 Sunplus SoCs.
662
663 To compile this driver as a module, choose M here: the module
664 will be called pwm-sunplus.
665
666config PWM_TEGRA
667 tristate "NVIDIA Tegra PWM support"
668 depends on ARCH_TEGRA || COMPILE_TEST
669 depends on HAS_IOMEM
670 help
671 Generic PWM framework driver for the PWFM controller found on NVIDIA
672 Tegra SoCs.
673
674 To compile this driver as a module, choose M here: the module
675 will be called pwm-tegra.
676
677config PWM_TIECAP
678 tristate "ECAP PWM support"
679 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX || ARCH_KEYSTONE || ARCH_K3 || COMPILE_TEST
680 depends on HAS_IOMEM
681 help
682 PWM driver support for the ECAP APWM controller found on TI SOCs
683
684 To compile this driver as a module, choose M here: the module
685 will be called pwm-tiecap.
686
687config PWM_TIEHRPWM
688 tristate "EHRPWM PWM support"
689 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX || ARCH_K3 || COMPILE_TEST
690 depends on HAS_IOMEM
691 help
692 PWM driver support for the EHRPWM controller found on TI SOCs
693
694 To compile this driver as a module, choose M here: the module
695 will be called pwm-tiehrpwm.
696
697config PWM_TWL
698 tristate "TWL4030/6030 PWM support"
699 depends on TWL4030_CORE
700 help
701 Generic PWM framework driver for TWL4030/6030.
702
703 To compile this driver as a module, choose M here: the module
704 will be called pwm-twl.
705
706config PWM_TWL_LED
707 tristate "TWL4030/6030 PWM support for LED drivers"
708 depends on TWL4030_CORE
709 help
710 Generic PWM framework driver for TWL4030/6030 LED terminals.
711
712 To compile this driver as a module, choose M here: the module
713 will be called pwm-twl-led.
714
715config PWM_VISCONTI
716 tristate "Toshiba Visconti PWM support"
717 depends on ARCH_VISCONTI || COMPILE_TEST
718 help
719 PWM Subsystem driver support for Toshiba Visconti SoCs.
720
721 To compile this driver as a module, choose M here: the module
722 will be called pwm-visconti.
723
724config PWM_VT8500
725 tristate "vt8500 PWM support"
726 depends on ARCH_VT8500 || COMPILE_TEST
727 depends on HAS_IOMEM
728 help
729 Generic PWM framework driver for vt8500.
730
731 To compile this driver as a module, choose M here: the module
732 will be called pwm-vt8500.
733
734config PWM_XILINX
735 tristate "Xilinx AXI Timer PWM support"
736 depends on OF_ADDRESS
737 depends on COMMON_CLK
738 select REGMAP_MMIO
739 help
740 PWM driver for Xilinx LogiCORE IP AXI timers. This timer is
741 typically a soft core which may be present in Xilinx FPGAs.
742 This device may also be present in Microblaze soft processors.
743 If you don't have this IP in your design, choose N.
744
745 To compile this driver as a module, choose M here: the module
746 will be called pwm-xilinx.
747
748endif