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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 OF
57 depends on ARCH_AT91 || COMPILE_TEST
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 ATMEL_TCLIB && OF
79 help
80 Generic PWM framework driver for Atmel Timer Counter Block.
81
82 A Timer Counter Block provides 6 PWM devices grouped by 2.
83 Devices in a given group must have the same period.
84
85 To compile this driver as a module, choose M here: the module
86 will be called pwm-atmel-tcb.
87
88config PWM_BCM_IPROC
89 tristate "iProc PWM support"
90 depends on ARCH_BCM_IPROC || COMPILE_TEST
91 depends on COMMON_CLK
92 default ARCH_BCM_IPROC
93 help
94 Generic PWM framework driver for Broadcom iProc PWM block. This
95 block is used in Broadcom iProc SoC's.
96
97 To compile this driver as a module, choose M here: the module
98 will be called pwm-bcm-iproc.
99
100config PWM_BCM_KONA
101 tristate "Kona PWM support"
102 depends on ARCH_BCM_MOBILE || ARCH_BCM_CYGNUS || COMPILE_TEST
103 depends on HAVE_CLK && HAS_IOMEM
104 default ARCH_BCM_MOBILE || ARCH_BCM_CYGNUS
105 help
106 Generic PWM framework driver for Broadcom Kona PWM block.
107
108 To compile this driver as a module, choose M here: the module
109 will be called pwm-bcm-kona.
110
111config PWM_BCM2835
112 tristate "BCM2835 PWM support"
113 depends on ARCH_BCM2835 || ARCH_BRCMSTB || COMPILE_TEST
114 help
115 PWM framework driver for BCM2835 controller (Raspberry Pi)
116
117 To compile this driver as a module, choose M here: the module
118 will be called pwm-bcm2835.
119
120config PWM_BERLIN
121 tristate "Marvell Berlin PWM support"
122 depends on ARCH_BERLIN || COMPILE_TEST
123 help
124 PWM framework driver for Marvell Berlin SoCs.
125
126 To compile this driver as a module, choose M here: the module
127 will be called pwm-berlin.
128
129config PWM_BRCMSTB
130 tristate "Broadcom STB PWM support"
131 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
132 help
133 Generic PWM framework driver for the Broadcom Set-top-Box
134 SoCs (BCM7xxx).
135
136 To compile this driver as a module, choose M Here: the module
137 will be called pwm-brcmstb.c.
138
139config PWM_CLPS711X
140 tristate "CLPS711X PWM support"
141 depends on ARCH_CLPS711X || COMPILE_TEST
142 depends on HAS_IOMEM
143 help
144 Generic PWM framework driver for Cirrus Logic CLPS711X.
145
146 To compile this driver as a module, choose M here: the module
147 will be called pwm-clps711x.
148
149config PWM_CRC
150 bool "Intel Crystalcove (CRC) PWM support"
151 depends on X86 && INTEL_SOC_PMIC
152 help
153 Generic PWM framework driver for Crystalcove (CRC) PMIC based PWM
154 control.
155
156config PWM_CROS_EC
157 tristate "ChromeOS EC PWM driver"
158 depends on CROS_EC
159 help
160 PWM driver for exposing a PWM attached to the ChromeOS Embedded
161 Controller.
162
163config PWM_EP93XX
164 tristate "Cirrus Logic EP93xx PWM support"
165 depends on ARCH_EP93XX || COMPILE_TEST
166 help
167 Generic PWM framework driver for Cirrus Logic EP93xx.
168
169 To compile this driver as a module, choose M here: the module
170 will be called pwm-ep93xx.
171
172config PWM_FSL_FTM
173 tristate "Freescale FlexTimer Module (FTM) PWM support"
174 depends on HAS_IOMEM
175 depends on OF
176 select REGMAP_MMIO
177 help
178 Generic FTM PWM framework driver for Freescale VF610 and
179 Layerscape LS-1 SoCs.
180
181 To compile this driver as a module, choose M here: the module
182 will be called pwm-fsl-ftm.
183
184config PWM_HIBVT
185 tristate "HiSilicon BVT PWM support"
186 depends on ARCH_HISI || COMPILE_TEST
187 help
188 Generic PWM framework driver for HiSilicon BVT SoCs.
189
190 To compile this driver as a module, choose M here: the module
191 will be called pwm-hibvt.
192
193config PWM_IMG
194 tristate "Imagination Technologies PWM driver"
195 depends on HAS_IOMEM
196 depends on MFD_SYSCON
197 depends on COMMON_CLK
198 depends on MIPS || COMPILE_TEST
199 help
200 Generic PWM framework driver for Imagination Technologies
201 PWM block which supports 4 channels.
202
203 To compile this driver as a module, choose M here: the module
204 will be called pwm-img
205
206config PWM_IMX1
207 tristate "i.MX1 PWM support"
208 depends on ARCH_MXC || COMPILE_TEST
209 help
210 Generic PWM framework driver for i.MX1 and i.MX21
211
212 To compile this driver as a module, choose M here: the module
213 will be called pwm-imx1.
214
215config PWM_IMX27
216 tristate "i.MX27 PWM support"
217 depends on ARCH_MXC || COMPILE_TEST
218 help
219 Generic PWM framework driver for i.MX27 and later i.MX SoCs.
220
221 To compile this driver as a module, choose M here: the module
222 will be called pwm-imx27.
223
224config PWM_IMX_TPM
225 tristate "i.MX TPM PWM support"
226 depends on ARCH_MXC || COMPILE_TEST
227 depends on HAVE_CLK && HAS_IOMEM
228 help
229 Generic PWM framework driver for i.MX7ULP TPM module, TPM's full
230 name is Low Power Timer/Pulse Width Modulation Module.
231
232 To compile this driver as a module, choose M here: the module
233 will be called pwm-imx-tpm.
234
235config PWM_IQS620A
236 tristate "Azoteq IQS620A PWM support"
237 depends on MFD_IQS62X || COMPILE_TEST
238 help
239 Generic PWM framework driver for the Azoteq IQS620A multi-function
240 sensor.
241
242 To compile this driver as a module, choose M here: the module will
243 be called pwm-iqs620a.
244
245config PWM_JZ4740
246 tristate "Ingenic JZ47xx PWM support"
247 depends on MIPS
248 depends on COMMON_CLK
249 select MFD_SYSCON
250 help
251 Generic PWM framework driver for Ingenic JZ47xx based
252 machines.
253
254 To compile this driver as a module, choose M here: the module
255 will be called pwm-jz4740.
256
257config PWM_LP3943
258 tristate "TI/National Semiconductor LP3943 PWM support"
259 depends on MFD_LP3943
260 help
261 Generic PWM framework driver for LP3943 which supports two PWM
262 channels.
263
264 To compile this driver as a module, choose M here: the module
265 will be called pwm-lp3943.
266
267config PWM_LPC18XX_SCT
268 tristate "LPC18xx/43xx PWM/SCT support"
269 depends on ARCH_LPC18XX || COMPILE_TEST
270 help
271 Generic PWM framework driver for NXP LPC18xx PWM/SCT which
272 supports 16 channels.
273 A maximum of 15 channels can be requested simultaneously and
274 must have the same period.
275
276 To compile this driver as a module, choose M here: the module
277 will be called pwm-lpc18xx-sct.
278
279config PWM_LPC32XX
280 tristate "LPC32XX PWM support"
281 depends on ARCH_LPC32XX || COMPILE_TEST
282 help
283 Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
284 PWM controllers.
285
286 To compile this driver as a module, choose M here: the module
287 will be called pwm-lpc32xx.
288
289config PWM_LPSS
290 tristate
291
292config PWM_LPSS_PCI
293 tristate "Intel LPSS PWM PCI driver"
294 depends on X86 && PCI
295 select PWM_LPSS
296 help
297 The PCI driver for Intel Low Power Subsystem PWM controller.
298
299 To compile this driver as a module, choose M here: the module
300 will be called pwm-lpss-pci.
301
302config PWM_LPSS_PLATFORM
303 tristate "Intel LPSS PWM platform driver"
304 depends on X86 && ACPI
305 select PWM_LPSS
306 help
307 The platform driver for Intel Low Power Subsystem PWM controller.
308
309 To compile this driver as a module, choose M here: the module
310 will be called pwm-lpss-platform.
311
312config PWM_MESON
313 tristate "Amlogic Meson PWM driver"
314 depends on ARCH_MESON || COMPILE_TEST
315 depends on COMMON_CLK
316 help
317 The platform driver for Amlogic Meson PWM controller.
318
319 To compile this driver as a module, choose M here: the module
320 will be called pwm-meson.
321
322config PWM_MTK_DISP
323 tristate "MediaTek display PWM driver"
324 depends on ARCH_MEDIATEK || COMPILE_TEST
325 depends on HAS_IOMEM
326 help
327 Generic PWM framework driver for MediaTek disp-pwm device.
328 The PWM is used to control the backlight brightness for display.
329
330 To compile this driver as a module, choose M here: the module
331 will be called pwm-mtk-disp.
332
333config PWM_MEDIATEK
334 tristate "MediaTek PWM support"
335 depends on ARCH_MEDIATEK || RALINK || COMPILE_TEST
336 help
337 Generic PWM framework driver for Mediatek ARM SoC.
338
339 To compile this driver as a module, choose M here: the module
340 will be called pwm-mediatek.
341
342config PWM_MXS
343 tristate "Freescale MXS PWM support"
344 depends on OF
345 depends on ARCH_MXS || COMPILE_TEST
346 select STMP_DEVICE
347 help
348 Generic PWM framework driver for Freescale MXS.
349
350 To compile this driver as a module, choose M here: the module
351 will be called pwm-mxs.
352
353config PWM_OMAP_DMTIMER
354 tristate "OMAP Dual-Mode Timer PWM support"
355 depends on OF
356 depends on OMAP_DM_TIMER || COMPILE_TEST
357 help
358 Generic PWM framework driver for OMAP Dual-Mode Timer PWM output
359
360 To compile this driver as a module, choose M here: the module
361 will be called pwm-omap-dmtimer
362
363config PWM_PCA9685
364 tristate "NXP PCA9685 PWM driver"
365 depends on I2C
366 select REGMAP_I2C
367 help
368 Generic PWM framework driver for NXP PCA9685 LED controller.
369
370 To compile this driver as a module, choose M here: the module
371 will be called pwm-pca9685.
372
373config PWM_PXA
374 tristate "PXA PWM support"
375 depends on ARCH_PXA || COMPILE_TEST
376 help
377 Generic PWM framework driver for PXA.
378
379 To compile this driver as a module, choose M here: the module
380 will be called pwm-pxa.
381
382config PWM_RCAR
383 tristate "Renesas R-Car PWM support"
384 depends on ARCH_RENESAS || COMPILE_TEST
385 depends on HAS_IOMEM
386 help
387 This driver exposes the PWM Timer controller found in Renesas
388 R-Car chips through the PWM API.
389
390 To compile this driver as a module, choose M here: the module
391 will be called pwm-rcar.
392
393config PWM_RENESAS_TPU
394 tristate "Renesas TPU PWM support"
395 depends on ARCH_RENESAS || COMPILE_TEST
396 depends on HAS_IOMEM
397 help
398 This driver exposes the Timer Pulse Unit (TPU) PWM controller found
399 in Renesas chips through the PWM API.
400
401 To compile this driver as a module, choose M here: the module
402 will be called pwm-renesas-tpu.
403
404config PWM_ROCKCHIP
405 tristate "Rockchip PWM support"
406 depends on ARCH_ROCKCHIP || COMPILE_TEST
407 help
408 Generic PWM framework driver for the PWM controller found on
409 Rockchip SoCs.
410
411config PWM_SAMSUNG
412 tristate "Samsung PWM support"
413 depends on PLAT_SAMSUNG || ARCH_EXYNOS || COMPILE_TEST
414 help
415 Generic PWM framework driver for Samsung.
416
417 To compile this driver as a module, choose M here: the module
418 will be called pwm-samsung.
419
420config PWM_SIFIVE
421 tristate "SiFive PWM support"
422 depends on OF
423 depends on COMMON_CLK
424 depends on RISCV || COMPILE_TEST
425 help
426 Generic PWM framework driver for SiFive SoCs.
427
428 To compile this driver as a module, choose M here: the module
429 will be called pwm-sifive.
430
431config PWM_SPEAR
432 tristate "STMicroelectronics SPEAr PWM support"
433 depends on PLAT_SPEAR || COMPILE_TEST
434 depends on OF
435 help
436 Generic PWM framework driver for the PWM controller on ST
437 SPEAr SoCs.
438
439 To compile this driver as a module, choose M here: the module
440 will be called pwm-spear.
441
442config PWM_SPRD
443 tristate "Spreadtrum PWM support"
444 depends on ARCH_SPRD || COMPILE_TEST
445 depends on HAS_IOMEM
446 help
447 Generic PWM framework driver for the PWM controller on
448 Spreadtrum SoCs.
449
450 To compile this driver as a module, choose M here: the module
451 will be called pwm-sprd.
452
453config PWM_STI
454 tristate "STiH4xx PWM support"
455 depends on ARCH_STI || COMPILE_TEST
456 depends on OF
457 help
458 Generic PWM framework driver for STiH4xx SoCs.
459
460 To compile this driver as a module, choose M here: the module
461 will be called pwm-sti.
462
463config PWM_STM32
464 tristate "STMicroelectronics STM32 PWM"
465 depends on MFD_STM32_TIMERS || COMPILE_TEST
466 help
467 Generic PWM framework driver for STM32 SoCs.
468
469 To compile this driver as a module, choose M here: the module
470 will be called pwm-stm32.
471
472config PWM_STM32_LP
473 tristate "STMicroelectronics STM32 PWM LP"
474 depends on MFD_STM32_LPTIMER || COMPILE_TEST
475 help
476 Generic PWM framework driver for STMicroelectronics STM32 SoCs
477 with Low-Power Timer (LPTIM).
478
479 To compile this driver as a module, choose M here: the module
480 will be called pwm-stm32-lp.
481
482config PWM_STMPE
483 bool "STMPE expander PWM export"
484 depends on MFD_STMPE
485 help
486 This enables support for the PWMs found in the STMPE I/O
487 expanders.
488
489config PWM_SUN4I
490 tristate "Allwinner PWM support"
491 depends on ARCH_SUNXI || COMPILE_TEST
492 depends on HAS_IOMEM && COMMON_CLK
493 help
494 Generic PWM framework driver for Allwinner SoCs.
495
496 To compile this driver as a module, choose M here: the module
497 will be called pwm-sun4i.
498
499config PWM_TEGRA
500 tristate "NVIDIA Tegra PWM support"
501 depends on ARCH_TEGRA || COMPILE_TEST
502 help
503 Generic PWM framework driver for the PWFM controller found on NVIDIA
504 Tegra SoCs.
505
506 To compile this driver as a module, choose M here: the module
507 will be called pwm-tegra.
508
509config PWM_TIECAP
510 tristate "ECAP PWM support"
511 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX || ARCH_KEYSTONE || ARCH_K3 || COMPILE_TEST
512 help
513 PWM driver support for the ECAP APWM controller found on TI SOCs
514
515 To compile this driver as a module, choose M here: the module
516 will be called pwm-tiecap.
517
518config PWM_TIEHRPWM
519 tristate "EHRPWM PWM support"
520 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX || ARCH_K3 || COMPILE_TEST
521 help
522 PWM driver support for the EHRPWM controller found on TI SOCs
523
524 To compile this driver as a module, choose M here: the module
525 will be called pwm-tiehrpwm.
526
527config PWM_TWL
528 tristate "TWL4030/6030 PWM support"
529 depends on TWL4030_CORE
530 help
531 Generic PWM framework driver for TWL4030/6030.
532
533 To compile this driver as a module, choose M here: the module
534 will be called pwm-twl.
535
536config PWM_TWL_LED
537 tristate "TWL4030/6030 PWM support for LED drivers"
538 depends on TWL4030_CORE
539 help
540 Generic PWM framework driver for TWL4030/6030 LED terminals.
541
542 To compile this driver as a module, choose M here: the module
543 will be called pwm-twl-led.
544
545config PWM_VT8500
546 tristate "vt8500 PWM support"
547 depends on ARCH_VT8500 || COMPILE_TEST
548 help
549 Generic PWM framework driver for vt8500.
550
551 To compile this driver as a module, choose M here: the module
552 will be called pwm-vt8500.
553
554config PWM_ZX
555 tristate "ZTE ZX PWM support"
556 depends on ARCH_ZX || COMPILE_TEST
557 help
558 Generic PWM framework driver for ZTE ZX family SoCs.
559
560 To compile this driver as a module, choose M here: the module
561 will be called pwm-zx.
562
563endif
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_CLPS711X
144 tristate "CLPS711X PWM support"
145 depends on ARCH_CLPS711X || COMPILE_TEST
146 depends on HAS_IOMEM
147 help
148 Generic PWM framework driver for Cirrus Logic CLPS711X.
149
150 To compile this driver as a module, choose M here: the module
151 will be called pwm-clps711x.
152
153config PWM_CRC
154 bool "Intel Crystalcove (CRC) PWM support"
155 depends on X86 && INTEL_SOC_PMIC
156 help
157 Generic PWM framework driver for Crystalcove (CRC) PMIC based PWM
158 control.
159
160config PWM_CROS_EC
161 tristate "ChromeOS EC PWM driver"
162 depends on CROS_EC
163 help
164 PWM driver for exposing a PWM attached to the ChromeOS Embedded
165 Controller.
166
167config PWM_DWC
168 tristate "DesignWare PWM Controller"
169 depends on PCI
170 help
171 PWM driver for Synopsys DWC PWM Controller attached to a PCI bus.
172
173 To compile this driver as a module, choose M here: the module
174 will be called pwm-dwc.
175
176config PWM_EP93XX
177 tristate "Cirrus Logic EP93xx PWM support"
178 depends on ARCH_EP93XX || COMPILE_TEST
179 depends on HAS_IOMEM
180 help
181 Generic PWM framework driver for Cirrus Logic EP93xx.
182
183 To compile this driver as a module, choose M here: the module
184 will be called pwm-ep93xx.
185
186config PWM_FSL_FTM
187 tristate "Freescale FlexTimer Module (FTM) PWM support"
188 depends on HAS_IOMEM
189 depends on OF
190 select REGMAP_MMIO
191 help
192 Generic FTM PWM framework driver for Freescale VF610 and
193 Layerscape LS-1 SoCs.
194
195 To compile this driver as a module, choose M here: the module
196 will be called pwm-fsl-ftm.
197
198config PWM_HIBVT
199 tristate "HiSilicon BVT PWM support"
200 depends on ARCH_HISI || COMPILE_TEST
201 depends on HAS_IOMEM
202 help
203 Generic PWM framework driver for HiSilicon BVT SoCs.
204
205 To compile this driver as a module, choose M here: the module
206 will be called pwm-hibvt.
207
208config PWM_IMG
209 tristate "Imagination Technologies PWM driver"
210 depends on HAS_IOMEM
211 depends on MFD_SYSCON
212 depends on COMMON_CLK
213 depends on MIPS || COMPILE_TEST
214 help
215 Generic PWM framework driver for Imagination Technologies
216 PWM block which supports 4 channels.
217
218 To compile this driver as a module, choose M here: the module
219 will be called pwm-img
220
221config PWM_IMX1
222 tristate "i.MX1 PWM support"
223 depends on ARCH_MXC || COMPILE_TEST
224 depends on HAS_IOMEM
225 help
226 Generic PWM framework driver for i.MX1 and i.MX21
227
228 To compile this driver as a module, choose M here: the module
229 will be called pwm-imx1.
230
231config PWM_IMX27
232 tristate "i.MX27 PWM support"
233 depends on ARCH_MXC || COMPILE_TEST
234 depends on HAS_IOMEM
235 help
236 Generic PWM framework driver for i.MX27 and later i.MX SoCs.
237
238 To compile this driver as a module, choose M here: the module
239 will be called pwm-imx27.
240
241config PWM_IMX_TPM
242 tristate "i.MX TPM PWM support"
243 depends on ARCH_MXC || COMPILE_TEST
244 depends on HAVE_CLK && HAS_IOMEM
245 help
246 Generic PWM framework driver for i.MX7ULP TPM module, TPM's full
247 name is Low Power Timer/Pulse Width Modulation Module.
248
249 To compile this driver as a module, choose M here: the module
250 will be called pwm-imx-tpm.
251
252config PWM_INTEL_LGM
253 tristate "Intel LGM PWM support"
254 depends on HAS_IOMEM
255 depends on (OF && X86) || COMPILE_TEST
256 select REGMAP_MMIO
257 help
258 Generic PWM fan controller driver for LGM SoC.
259
260 To compile this driver as a module, choose M here: the module
261 will be called pwm-intel-lgm.
262
263config PWM_IQS620A
264 tristate "Azoteq IQS620A PWM support"
265 depends on MFD_IQS62X || COMPILE_TEST
266 help
267 Generic PWM framework driver for the Azoteq IQS620A multi-function
268 sensor.
269
270 To compile this driver as a module, choose M here: the module will
271 be called pwm-iqs620a.
272
273config PWM_JZ4740
274 tristate "Ingenic JZ47xx PWM support"
275 depends on MIPS
276 depends on COMMON_CLK
277 select MFD_SYSCON
278 help
279 Generic PWM framework driver for Ingenic JZ47xx based
280 machines.
281
282 To compile this driver as a module, choose M here: the module
283 will be called pwm-jz4740.
284
285config PWM_KEEMBAY
286 tristate "Intel Keem Bay PWM driver"
287 depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST)
288 help
289 The platform driver for Intel Keem Bay PWM controller.
290
291 To compile this driver as a module, choose M here: the module
292 will be called pwm-keembay.
293
294config PWM_LP3943
295 tristate "TI/National Semiconductor LP3943 PWM support"
296 depends on MFD_LP3943
297 help
298 Generic PWM framework driver for LP3943 which supports two PWM
299 channels.
300
301 To compile this driver as a module, choose M here: the module
302 will be called pwm-lp3943.
303
304config PWM_LPC18XX_SCT
305 tristate "LPC18xx/43xx PWM/SCT support"
306 depends on ARCH_LPC18XX || COMPILE_TEST
307 depends on HAS_IOMEM
308 help
309 Generic PWM framework driver for NXP LPC18xx PWM/SCT which
310 supports 16 channels.
311 A maximum of 15 channels can be requested simultaneously and
312 must have the same period.
313
314 To compile this driver as a module, choose M here: the module
315 will be called pwm-lpc18xx-sct.
316
317config PWM_LPC32XX
318 tristate "LPC32XX PWM support"
319 depends on ARCH_LPC32XX || COMPILE_TEST
320 depends on HAS_IOMEM
321 help
322 Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
323 PWM controllers.
324
325 To compile this driver as a module, choose M here: the module
326 will be called pwm-lpc32xx.
327
328config PWM_LPSS
329 depends on HAS_IOMEM
330 tristate
331
332config PWM_LPSS_PCI
333 tristate "Intel LPSS PWM PCI driver"
334 depends on X86 || COMPILE_TEST
335 depends on HAS_IOMEM && PCI
336 select PWM_LPSS
337 help
338 The PCI driver for Intel Low Power Subsystem PWM controller.
339
340 To compile this driver as a module, choose M here: the module
341 will be called pwm-lpss-pci.
342
343config PWM_LPSS_PLATFORM
344 tristate "Intel LPSS PWM platform driver"
345 depends on (X86 && ACPI) || COMPILE_TEST
346 depends on HAS_IOMEM
347 select PWM_LPSS
348 help
349 The platform 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-platform.
353
354config PWM_MESON
355 tristate "Amlogic Meson PWM driver"
356 depends on ARCH_MESON || COMPILE_TEST
357 depends on COMMON_CLK && HAS_IOMEM
358 help
359 The platform driver for Amlogic Meson PWM controller.
360
361 To compile this driver as a module, choose M here: the module
362 will be called pwm-meson.
363
364config PWM_MTK_DISP
365 tristate "MediaTek display PWM driver"
366 depends on ARCH_MEDIATEK || COMPILE_TEST
367 depends on HAS_IOMEM
368 help
369 Generic PWM framework driver for MediaTek disp-pwm device.
370 The PWM is used to control the backlight brightness for display.
371
372 To compile this driver as a module, choose M here: the module
373 will be called pwm-mtk-disp.
374
375config PWM_MEDIATEK
376 tristate "MediaTek PWM support"
377 depends on ARCH_MEDIATEK || RALINK || COMPILE_TEST
378 depends on HAS_IOMEM
379 help
380 Generic PWM framework driver for Mediatek ARM SoC.
381
382 To compile this driver as a module, choose M here: the module
383 will be called pwm-mediatek.
384
385config PWM_MXS
386 tristate "Freescale MXS PWM support"
387 depends on ARCH_MXS || COMPILE_TEST
388 depends on HAS_IOMEM && OF
389 select STMP_DEVICE
390 help
391 Generic PWM framework driver for Freescale MXS.
392
393 To compile this driver as a module, choose M here: the module
394 will be called pwm-mxs.
395
396config PWM_NTXEC
397 tristate "Netronix embedded controller PWM support"
398 depends on MFD_NTXEC
399 help
400 Say yes here if you want to support the PWM output of the embedded
401 controller found in certain e-book readers designed by the original
402 design manufacturer Netronix.
403
404config PWM_OMAP_DMTIMER
405 tristate "OMAP Dual-Mode Timer PWM support"
406 depends on OF
407 depends on OMAP_DM_TIMER || COMPILE_TEST
408 help
409 Generic PWM framework driver for OMAP Dual-Mode Timer PWM output
410
411 To compile this driver as a module, choose M here: the module
412 will be called pwm-omap-dmtimer
413
414config PWM_PCA9685
415 tristate "NXP PCA9685 PWM driver"
416 depends on I2C
417 select REGMAP_I2C
418 help
419 Generic PWM framework driver for NXP PCA9685 LED controller.
420
421 To compile this driver as a module, choose M here: the module
422 will be called pwm-pca9685.
423
424config PWM_PXA
425 tristate "PXA PWM support"
426 depends on ARCH_PXA || COMPILE_TEST
427 depends on HAS_IOMEM
428 help
429 Generic PWM framework driver for PXA.
430
431 To compile this driver as a module, choose M here: the module
432 will be called pwm-pxa.
433
434config PWM_RASPBERRYPI_POE
435 tristate "Raspberry Pi Firwmware PoE Hat PWM support"
436 # Make sure not 'y' when RASPBERRYPI_FIRMWARE is 'm'. This can only
437 # happen when COMPILE_TEST=y, hence the added !RASPBERRYPI_FIRMWARE.
438 depends on RASPBERRYPI_FIRMWARE || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE)
439 help
440 Enable Raspberry Pi firmware controller PWM bus used to control the
441 official RPI PoE hat
442
443config PWM_RCAR
444 tristate "Renesas R-Car PWM support"
445 depends on ARCH_RENESAS || COMPILE_TEST
446 depends on HAS_IOMEM
447 help
448 This driver exposes the PWM Timer controller found in Renesas
449 R-Car chips through the PWM API.
450
451 To compile this driver as a module, choose M here: the module
452 will be called pwm-rcar.
453
454config PWM_RENESAS_TPU
455 tristate "Renesas TPU PWM support"
456 depends on ARCH_RENESAS || COMPILE_TEST
457 depends on HAS_IOMEM
458 help
459 This driver exposes the Timer Pulse Unit (TPU) PWM controller found
460 in Renesas chips through the PWM API.
461
462 To compile this driver as a module, choose M here: the module
463 will be called pwm-renesas-tpu.
464
465config PWM_ROCKCHIP
466 tristate "Rockchip PWM support"
467 depends on ARCH_ROCKCHIP || COMPILE_TEST
468 depends on HAS_IOMEM
469 help
470 Generic PWM framework driver for the PWM controller found on
471 Rockchip SoCs.
472
473config PWM_SAMSUNG
474 tristate "Samsung PWM support"
475 depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST
476 depends on HAS_IOMEM
477 help
478 Generic PWM framework driver for Samsung.
479
480 To compile this driver as a module, choose M here: the module
481 will be called pwm-samsung.
482
483config PWM_SIFIVE
484 tristate "SiFive PWM support"
485 depends on OF
486 depends on COMMON_CLK && HAS_IOMEM
487 depends on RISCV || COMPILE_TEST
488 help
489 Generic PWM framework driver for SiFive SoCs.
490
491 To compile this driver as a module, choose M here: the module
492 will be called pwm-sifive.
493
494config PWM_SL28CPLD
495 tristate "Kontron sl28cpld PWM support"
496 depends on MFD_SL28CPLD || COMPILE_TEST
497 help
498 Generic PWM framework driver for board management controller
499 found on the Kontron sl28 CPLD.
500
501 To compile this driver as a module, choose M here: the module
502 will be called pwm-sl28cpld.
503
504config PWM_SPEAR
505 tristate "STMicroelectronics SPEAr PWM support"
506 depends on PLAT_SPEAR || COMPILE_TEST
507 depends on HAS_IOMEM && OF
508 help
509 Generic PWM framework driver for the PWM controller on ST
510 SPEAr SoCs.
511
512 To compile this driver as a module, choose M here: the module
513 will be called pwm-spear.
514
515config PWM_SPRD
516 tristate "Spreadtrum PWM support"
517 depends on ARCH_SPRD || COMPILE_TEST
518 depends on HAS_IOMEM
519 help
520 Generic PWM framework driver for the PWM controller on
521 Spreadtrum SoCs.
522
523 To compile this driver as a module, choose M here: the module
524 will be called pwm-sprd.
525
526config PWM_STI
527 tristate "STiH4xx PWM support"
528 depends on ARCH_STI || COMPILE_TEST
529 depends on HAS_IOMEM && OF
530 help
531 Generic PWM framework driver for STiH4xx SoCs.
532
533 To compile this driver as a module, choose M here: the module
534 will be called pwm-sti.
535
536config PWM_STM32
537 tristate "STMicroelectronics STM32 PWM"
538 depends on MFD_STM32_TIMERS || COMPILE_TEST
539 help
540 Generic PWM framework driver for STM32 SoCs.
541
542 To compile this driver as a module, choose M here: the module
543 will be called pwm-stm32.
544
545config PWM_STM32_LP
546 tristate "STMicroelectronics STM32 PWM LP"
547 depends on MFD_STM32_LPTIMER || COMPILE_TEST
548 help
549 Generic PWM framework driver for STMicroelectronics STM32 SoCs
550 with Low-Power Timer (LPTIM).
551
552 To compile this driver as a module, choose M here: the module
553 will be called pwm-stm32-lp.
554
555config PWM_STMPE
556 bool "STMPE expander PWM export"
557 depends on MFD_STMPE
558 help
559 This enables support for the PWMs found in the STMPE I/O
560 expanders.
561
562config PWM_SUN4I
563 tristate "Allwinner PWM support"
564 depends on ARCH_SUNXI || COMPILE_TEST
565 depends on HAS_IOMEM && COMMON_CLK
566 help
567 Generic PWM framework driver for Allwinner SoCs.
568
569 To compile this driver as a module, choose M here: the module
570 will be called pwm-sun4i.
571
572config PWM_TEGRA
573 tristate "NVIDIA Tegra PWM support"
574 depends on ARCH_TEGRA || COMPILE_TEST
575 depends on HAS_IOMEM
576 help
577 Generic PWM framework driver for the PWFM controller found on NVIDIA
578 Tegra SoCs.
579
580 To compile this driver as a module, choose M here: the module
581 will be called pwm-tegra.
582
583config PWM_TIECAP
584 tristate "ECAP PWM support"
585 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX || ARCH_KEYSTONE || ARCH_K3 || COMPILE_TEST
586 depends on HAS_IOMEM
587 help
588 PWM driver support for the ECAP APWM controller found on TI SOCs
589
590 To compile this driver as a module, choose M here: the module
591 will be called pwm-tiecap.
592
593config PWM_TIEHRPWM
594 tristate "EHRPWM PWM support"
595 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX || ARCH_K3 || COMPILE_TEST
596 depends on HAS_IOMEM
597 help
598 PWM driver support for the EHRPWM controller found on TI SOCs
599
600 To compile this driver as a module, choose M here: the module
601 will be called pwm-tiehrpwm.
602
603config PWM_TWL
604 tristate "TWL4030/6030 PWM support"
605 depends on TWL4030_CORE
606 help
607 Generic PWM framework driver for TWL4030/6030.
608
609 To compile this driver as a module, choose M here: the module
610 will be called pwm-twl.
611
612config PWM_TWL_LED
613 tristate "TWL4030/6030 PWM support for LED drivers"
614 depends on TWL4030_CORE
615 help
616 Generic PWM framework driver for TWL4030/6030 LED terminals.
617
618 To compile this driver as a module, choose M here: the module
619 will be called pwm-twl-led.
620
621config PWM_VISCONTI
622 tristate "Toshiba Visconti PWM support"
623 depends on ARCH_VISCONTI || COMPILE_TEST
624 help
625 PWM Subsystem driver support for Toshiba Visconti SoCs.
626
627 To compile this driver as a module, choose M here: the module
628 will be called pwm-visconti.
629
630config PWM_VT8500
631 tristate "vt8500 PWM support"
632 depends on ARCH_VT8500 || COMPILE_TEST
633 depends on HAS_IOMEM
634 help
635 Generic PWM framework driver for vt8500.
636
637 To compile this driver as a module, choose M here: the module
638 will be called pwm-vt8500.
639
640endif