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