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0c2498f1 1menuconfig PWM
b817bf5c 2 bool "Pulse-Width Modulation (PWM) Support"
0c2498f1 3 help
b817bf5c 4 Generic Pulse-Width Modulation (PWM) support.
0c2498f1 5
b817bf5c
TR
6 In Pulse-Width Modulation, a variation of the width of pulses
7 in a rectangular pulse signal is used as a means to alter the
8 average power of the signal. Applications include efficient
9 power delivery and voltage regulation. In computer systems,
10 PWMs are commonly used to control fans or the brightness of
11 display backlights.
12
13 This framework provides a generic interface to PWM devices
14 within the Linux kernel. On the driver side it provides an API
15 to register and unregister a PWM chip, an abstraction of a PWM
16 controller, that supports one or more PWM devices. Client
17 drivers can request PWM devices and use the generic framework
18 to configure as well as enable and disable them.
19
20 This generic framework replaces the legacy PWM framework which
21 allows only a single driver implementing the required API. Not
22 all legacy implementations have been ported to the framework
23 yet. The framework provides an API that is backward compatible
24 with the legacy framework so that existing client drivers
25 continue to work as expected.
26
27 If unsure, say no.
0c2498f1
SH
28
29if PWM
30
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31config PWM_SYSFS
32 bool
33 default y if SYSFS
34
6173f8f4
TR
35config PWM_AB8500
36 tristate "AB8500 PWM support"
37 depends on AB8500_CORE && ARCH_U8500
38 help
39 Generic PWM framework driver for Analog Baseband AB8500.
40
41 To compile this driver as a module, choose M here: the module
42 will be called pwm-ab8500.
43
32b16d46
BS
44config PWM_ATMEL
45 tristate "Atmel PWM support"
a687a533 46 depends on ARCH_AT91
32b16d46
BS
47 help
48 Generic PWM framework driver for Atmel SoC.
49
50 To compile this driver as a module, choose M here: the module
51 will be called pwm-atmel.
52
2b4984be
BB
53config PWM_ATMEL_HLCDC_PWM
54 tristate "Atmel HLCDC PWM support"
55 depends on MFD_ATMEL_HLCDC
d2048c49 56 depends on HAVE_CLK
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BB
57 help
58 Generic PWM framework driver for the PWM output of the HLCDC
59 (Atmel High-end LCD Controller). This PWM output is mainly used
60 to control the LCD backlight.
61
62 To compile this driver as a module, choose M here: the module
63 will be called pwm-atmel-hlcdc.
64
9421bade 65config PWM_ATMEL_TCB
b133d2a1 66 tristate "Atmel TC Block PWM support"
9421bade
BB
67 depends on ATMEL_TCLIB && OF
68 help
69 Generic PWM framework driver for Atmel Timer Counter Block.
70
71 A Timer Counter Block provides 6 PWM devices grouped by 2.
72 Devices in a given group must have the same period.
73
74 To compile this driver as a module, choose M here: the module
75 will be called pwm-atmel-tcb.
76
daa5abc4
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77config PWM_BCM_IPROC
78 tristate "iProc PWM support"
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SB
79 depends on ARCH_BCM_IPROC || COMPILE_TEST
80 depends on COMMON_CLK
81 default ARCH_BCM_IPROC
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82 help
83 Generic PWM framework driver for Broadcom iProc PWM block. This
84 block is used in Broadcom iProc SoC's.
85
86 To compile this driver as a module, choose M here: the module
87 will be called pwm-bcm-iproc.
88
6a4e4bff
TK
89config PWM_BCM_KONA
90 tristate "Kona PWM support"
91 depends on ARCH_BCM_MOBILE
92 help
93 Generic PWM framework driver for Broadcom Kona PWM block.
94
95 To compile this driver as a module, choose M here: the module
96 will be called pwm-bcm-kona.
97
e5a06dc5
BT
98config PWM_BCM2835
99 tristate "BCM2835 PWM support"
100 depends on ARCH_BCM2835
101 help
102 PWM framework driver for BCM2835 controller (Raspberry Pi)
103
104 To compile this driver as a module, choose M here: the module
105 will be called pwm-bcm2835.
106
59d5c8b1
AT
107config PWM_BERLIN
108 tristate "Marvell Berlin PWM support"
109 depends on ARCH_BERLIN
110 help
111 PWM framework driver for Marvell Berlin SoCs.
112
113 To compile this driver as a module, choose M here: the module
114 will be called pwm-berlin.
115
3a9f5957
FF
116config PWM_BRCMSTB
117 tristate "Broadcom STB PWM support"
118 depends on ARCH_BRCMSTB || BMIPS_GENERIC
119 help
120 Generic PWM framework driver for the Broadcom Set-top-Box
121 SoCs (BCM7xxx).
122
123 To compile this driver as a module, choose M Here: the module
124 will be called pwm-brcmstb.c.
125
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126config PWM_CLPS711X
127 tristate "CLPS711X PWM support"
128 depends on ARCH_CLPS711X || COMPILE_TEST
dec02f98 129 depends on HAS_IOMEM
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AS
130 help
131 Generic PWM framework driver for Cirrus Logic CLPS711X.
132
133 To compile this driver as a module, choose M here: the module
134 will be called pwm-clps711x.
135
a3f37a10
SK
136config PWM_CRC
137 bool "Intel Crystalcove (CRC) PWM support"
138 depends on X86 && INTEL_SOC_PMIC
139 help
140 Generic PWM framework driver for Crystalcove (CRC) PMIC based PWM
141 control.
142
1f0d3bb0
BN
143config PWM_CROS_EC
144 tristate "ChromeOS EC PWM driver"
145 depends on MFD_CROS_EC
146 help
147 PWM driver for exposing a PWM attached to the ChromeOS Embedded
148 Controller.
149
a2308698
HS
150config PWM_EP93XX
151 tristate "Cirrus Logic EP93xx PWM support"
152 depends on ARCH_EP93XX
153 help
154 Generic PWM framework driver for Cirrus Logic EP93xx.
155
156 To compile this driver as a module, choose M here: the module
157 will be called pwm-ep93xx.
158
b505183b
XL
159config PWM_FSL_FTM
160 tristate "Freescale FlexTimer Module (FTM) PWM support"
36d5be4b 161 depends on HAS_IOMEM
b505183b 162 depends on OF
00018a8a 163 select REGMAP_MMIO
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XL
164 help
165 Generic FTM PWM framework driver for Freescale VF610 and
166 Layerscape LS-1 SoCs.
167
168 To compile this driver as a module, choose M here: the module
169 will be called pwm-fsl-ftm.
170
d09f0081 171config PWM_HIBVT
172 tristate "HiSilicon BVT PWM support"
173 depends on ARCH_HISI || COMPILE_TEST
174 help
175 Generic PWM framework driver for HiSilicon BVT SoCs.
176
177 To compile this driver as a module, choose M here: the module
178 will be called pwm-hibvt.
179
277bb6a2
NT
180config PWM_IMG
181 tristate "Imagination Technologies PWM driver"
182 depends on HAS_IOMEM
183 depends on MFD_SYSCON
184 depends on COMMON_CLK
185 depends on MIPS || COMPILE_TEST
186 help
187 Generic PWM framework driver for Imagination Technologies
188 PWM block which supports 4 channels.
189
190 To compile this driver as a module, choose M here: the module
191 will be called pwm-img
192
29693248 193config PWM_IMX
b133d2a1 194 tristate "i.MX PWM support"
29693248
SH
195 depends on ARCH_MXC
196 help
197 Generic PWM framework driver for i.MX.
198
199 To compile this driver as a module, choose M here: the module
200 will be called pwm-imx.
201
f6b8a570 202config PWM_JZ4740
b4190062
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203 tristate "Ingenic JZ47xx PWM support"
204 depends on MACH_INGENIC
f6b8a570 205 help
b4190062 206 Generic PWM framework driver for Ingenic JZ47xx based
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207 machines.
208
209 To compile this driver as a module, choose M here: the module
210 will be called pwm-jz4740.
211
af66b3c0
MK
212config PWM_LP3943
213 tristate "TI/National Semiconductor LP3943 PWM support"
214 depends on MFD_LP3943
215 help
216 Generic PWM framework driver for LP3943 which supports two PWM
217 channels.
218
219 To compile this driver as a module, choose M here: the module
220 will be called pwm-lp3943.
221
841e6f90
AA
222config PWM_LPC18XX_SCT
223 tristate "LPC18xx/43xx PWM/SCT support"
224 depends on ARCH_LPC18XX
225 help
226 Generic PWM framework driver for NXP LPC18xx PWM/SCT which
227 supports 16 channels.
228 A maximum of 15 channels can be requested simultaneously and
229 must have the same period.
230
231 To compile this driver as a module, choose M here: the module
232 will be called pwm-lpc18xx-sct.
233
2132fa8d
APS
234config PWM_LPC32XX
235 tristate "LPC32XX PWM support"
236 depends on ARCH_LPC32XX
237 help
238 Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
239 PWM controllers.
240
241 To compile this driver as a module, choose M here: the module
242 will be called pwm-lpc32xx.
243
d16a5aa9 244config PWM_LPSS
6f90a00c 245 tristate
d16a5aa9 246
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247config PWM_LPSS_PCI
248 tristate "Intel LPSS PWM PCI driver"
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249 depends on X86 && PCI
250 select PWM_LPSS
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251 help
252 The PCI driver for Intel Low Power Subsystem PWM controller.
253
254 To compile this driver as a module, choose M here: the module
255 will be called pwm-lpss-pci.
256
257config PWM_LPSS_PLATFORM
258 tristate "Intel LPSS PWM platform driver"
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259 depends on X86 && ACPI
260 select PWM_LPSS
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261 help
262 The platform driver for Intel Low Power Subsystem PWM controller.
263
264 To compile this driver as a module, choose M here: the module
265 will be called pwm-lpss-platform.
266
211ed630
NA
267config PWM_MESON
268 tristate "Amlogic Meson PWM driver"
269 depends on ARCH_MESON
270 help
271 The platform driver for Amlogic Meson PWM controller.
272
273 To compile this driver as a module, choose M here: the module
274 will be called pwm-meson.
275
7e3b7dc7
YH
276config PWM_MTK_DISP
277 tristate "MediaTek display PWM driver"
278 depends on ARCH_MEDIATEK || COMPILE_TEST
279 depends on HAS_IOMEM
280 help
281 Generic PWM framework driver for MediaTek disp-pwm device.
282 The PWM is used to control the backlight brightness for display.
283
284 To compile this driver as a module, choose M here: the module
285 will be called pwm-mtk-disp.
286
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287config PWM_MEDIATEK
288 tristate "MediaTek PWM support"
8cdc43af 289 depends on ARCH_MEDIATEK || RALINK || COMPILE_TEST
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290 help
291 Generic PWM framework driver for Mediatek ARM SoC.
292
293 To compile this driver as a module, choose M here: the module
aa12d7a7 294 will be called pwm-mediatek.
caf065f8 295
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296config PWM_MXS
297 tristate "Freescale MXS PWM support"
298 depends on ARCH_MXS && OF
01bf32e9 299 select STMP_DEVICE
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SG
300 help
301 Generic PWM framework driver for Freescale MXS.
302
303 To compile this driver as a module, choose M here: the module
304 will be called pwm-mxs.
305
6604c655
NA
306config PWM_OMAP_DMTIMER
307 tristate "OMAP Dual-Mode Timer PWM support"
308 depends on OF && ARCH_OMAP && OMAP_DM_TIMER
309 help
310 Generic PWM framework driver for OMAP Dual-Mode Timer PWM output
311
312 To compile this driver as a module, choose M here: the module
313 will be called pwm-omap-dmtimer
314
88b613e6
ST
315config PWM_PCA9685
316 tristate "NXP PCA9685 PWM driver"
912b8439 317 depends on I2C
2c80a492 318 select REGMAP_I2C
88b613e6
ST
319 help
320 Generic PWM framework driver for NXP PCA9685 LED controller.
321
322 To compile this driver as a module, choose M here: the module
323 will be called pwm-pca9685.
324
79c11b6f
TR
325config PWM_PUV3
326 tristate "PKUnity NetBook-0916 PWM support"
327 depends on ARCH_PUV3
328 help
329 Generic PWM framework driver for PKUnity NetBook-0916.
330
331 To compile this driver as a module, choose M here: the module
332 will be called pwm-puv3.
333
17b2b478
TR
334config PWM_PXA
335 tristate "PXA PWM support"
336 depends on ARCH_PXA
337 help
338 Generic PWM framework driver for PXA.
339
340 To compile this driver as a module, choose M here: the module
341 will be called pwm-pxa.
342
ed6c1476
YS
343config PWM_RCAR
344 tristate "Renesas R-Car PWM support"
48169988 345 depends on ARCH_RENESAS || COMPILE_TEST
ed6c1476
YS
346 depends on HAS_IOMEM
347 help
348 This driver exposes the PWM Timer controller found in Renesas
349 R-Car chips through the PWM API.
350
351 To compile this driver as a module, choose M here: the module
352 will be called pwm-rcar.
353
99b82abb
LP
354config PWM_RENESAS_TPU
355 tristate "Renesas TPU PWM support"
03d99531 356 depends on ARCH_RENESAS || COMPILE_TEST
2974b098 357 depends on HAS_IOMEM
99b82abb
LP
358 help
359 This driver exposes the Timer Pulse Unit (TPU) PWM controller found
360 in Renesas chips through the PWM API.
361
362 To compile this driver as a module, choose M here: the module
363 will be called pwm-renesas-tpu.
364
101353c8
BG
365config PWM_ROCKCHIP
366 tristate "Rockchip PWM support"
367 depends on ARCH_ROCKCHIP
368 help
369 Generic PWM framework driver for the PWM controller found on
370 Rockchip SoCs.
371
215c29d3 372config PWM_SAMSUNG
b133d2a1 373 tristate "Samsung PWM support"
06e4cb6b 374 depends on PLAT_SAMSUNG || ARCH_EXYNOS
215c29d3
SH
375 help
376 Generic PWM framework driver for Samsung.
377
378 To compile this driver as a module, choose M here: the module
379 will be called pwm-samsung.
380
ce20364b
SH
381config PWM_SPEAR
382 tristate "STMicroelectronics SPEAr PWM support"
383 depends on PLAT_SPEAR
384 depends on OF
385 help
386 Generic PWM framework driver for the PWM controller on ST
387 SPEAr SoCs.
388
389 To compile this driver as a module, choose M here: the module
390 will be called pwm-spear.
391
378fe115
LJ
392config PWM_STI
393 tristate "STiH4xx PWM support"
394 depends on ARCH_STI
395 depends on OF
396 help
397 Generic PWM framework driver for STiH4xx SoCs.
398
399 To compile this driver as a module, choose M here: the module
400 will be called pwm-sti.
401
7edf7369
BG
402config PWM_STM32
403 tristate "STMicroelectronics STM32 PWM"
d968e504 404 depends on MFD_STM32_TIMERS
7edf7369
BG
405 help
406 Generic PWM framework driver for STM32 SoCs.
407
408 To compile this driver as a module, choose M here: the module
409 will be called pwm-stm32.
410
e70a540b
FG
411config PWM_STM32_LP
412 tristate "STMicroelectronics STM32 PWM LP"
413 depends on MFD_STM32_LPTIMER || COMPILE_TEST
414 help
415 Generic PWM framework driver for STMicroelectronics STM32 SoCs
416 with Low-Power Timer (LPTIM).
417
418 To compile this driver as a module, choose M here: the module
419 will be called pwm-stm32-lp.
420
ef1f09ec
LW
421config PWM_STMPE
422 bool "STMPE expander PWM export"
423 depends on MFD_STMPE
424 help
425 This enables support for the PWMs found in the STMPE I/O
426 expanders.
427
09853ce7
AB
428config PWM_SUN4I
429 tristate "Allwinner PWM support"
430 depends on ARCH_SUNXI || COMPILE_TEST
431 depends on HAS_IOMEM && COMMON_CLK
432 help
433 Generic PWM framework driver for Allwinner SoCs.
434
435 To compile this driver as a module, choose M here: the module
436 will be called pwm-sun4i.
437
0134b932
TR
438config PWM_TEGRA
439 tristate "NVIDIA Tegra PWM support"
440 depends on ARCH_TEGRA
441 help
442 Generic PWM framework driver for the PWFM controller found on NVIDIA
443 Tegra SoCs.
444
445 To compile this driver as a module, choose M here: the module
446 will be called pwm-tegra.
447
8e0cb05b
PA
448config PWM_TIECAP
449 tristate "ECAP PWM support"
6f37709f 450 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX || ARCH_KEYSTONE || ARCH_K3
8e0cb05b 451 help
6f37709f 452 PWM driver support for the ECAP APWM controller found on TI SOCs
8e0cb05b
PA
453
454 To compile this driver as a module, choose M here: the module
455 will be called pwm-tiecap.
456
19891b20
PA
457config PWM_TIEHRPWM
458 tristate "EHRPWM PWM support"
25ebc9ec 459 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
19891b20
PA
460 help
461 PWM driver support for the EHRPWM controller found on AM33XX
462 TI SOC
463
464 To compile this driver as a module, choose M here: the module
465 will be called pwm-tiehrpwm.
466
af0ba001
PA
467config PWM_TIPWMSS
468 bool
25ebc9ec 469 default y if (ARCH_OMAP2PLUS) && (PWM_TIECAP || PWM_TIEHRPWM)
af0ba001
PA
470 help
471 PWM Subsystem driver support for AM33xx SOC.
472
473 PWM submodules require PWM config space access from submodule
474 drivers and require common parent driver support.
475
3744c263
PU
476config PWM_TWL
477 tristate "TWL4030/6030 PWM support"
478 depends on TWL4030_CORE
479 help
480 Generic PWM framework driver for TWL4030/6030.
481
482 To compile this driver as a module, choose M here: the module
483 will be called pwm-twl.
484
aa765647
PU
485config PWM_TWL_LED
486 tristate "TWL4030/6030 PWM support for LED drivers"
487 depends on TWL4030_CORE
488 help
489 Generic PWM framework driver for TWL4030/6030 LED terminals.
490
491 To compile this driver as a module, choose M here: the module
492 will be called pwm-twl-led.
493
a245cceb 494config PWM_VT8500
b133d2a1 495 tristate "vt8500 PWM support"
a245cceb
SH
496 depends on ARCH_VT8500
497 help
498 Generic PWM framework driver for vt8500.
499
500 To compile this driver as a module, choose M here: the module
501 will be called pwm-vt8500.
502
4836193c
SG
503config PWM_ZX
504 tristate "ZTE ZX PWM support"
505 depends on ARCH_ZX
506 help
507 Generic PWM framework driver for ZTE ZX family SoCs.
508
509 To compile this driver as a module, choose M here: the module
510 will be called pwm-zx.
511
0c2498f1 512endif