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Sascha Hauer0c2498f2011-01-28 09:40:40 +01001menuconfig PWM
Thierry Redingb817bf52012-08-16 08:01:21 +02002 bool "Pulse-Width Modulation (PWM) Support"
Sascha Hauer0c2498f2011-01-28 09:40:40 +01003 help
Thierry Redingb817bf52012-08-16 08:01:21 +02004 Generic Pulse-Width Modulation (PWM) support.
Sascha Hauer0c2498f2011-01-28 09:40:40 +01005
Thierry Redingb817bf52012-08-16 08:01:21 +02006 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.
Sascha Hauer0c2498f2011-01-28 09:40:40 +010028
29if PWM
30
H Hartley Sweeten76abbdde2013-06-11 10:38:59 -070031config PWM_SYSFS
32 bool
33 default y if SYSFS
34
Thierry Reding6173f8f2012-08-31 11:46:24 +020035config 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
Bo Shen32b16d42013-12-13 14:41:49 +080044config PWM_ATMEL
45 tristate "Atmel PWM support"
Alexandre Bellonibb4bbba2014-05-29 01:20:10 +020046 depends on ARCH_AT91 || AVR32
Bo Shen32b16d42013-12-13 14:41:49 +080047 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
Boris Brezillon2b4984b2014-10-07 15:38:14 +020053config PWM_ATMEL_HLCDC_PWM
54 tristate "Atmel HLCDC PWM support"
55 depends on MFD_ATMEL_HLCDC
Thierry Redingd2048c42014-12-18 10:09:42 +010056 depends on HAVE_CLK
Boris Brezillon2b4984b2014-10-07 15:38:14 +020057 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
Boris BREZILLON9421bade2013-01-08 16:36:42 +010065config PWM_ATMEL_TCB
Thierry Redingb133d2a2013-01-30 09:19:55 +010066 tristate "Atmel TC Block PWM support"
Boris BREZILLON9421bade2013-01-08 16:36:42 +010067 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
Yendapally Reddy Dhananjaya Reddydaa5abc2016-07-05 02:00:25 -040077config PWM_BCM_IPROC
78 tristate "iProc PWM support"
79 depends on ARCH_BCM_IPROC
80 help
81 Generic PWM framework driver for Broadcom iProc PWM block. This
82 block is used in Broadcom iProc SoC's.
83
84 To compile this driver as a module, choose M here: the module
85 will be called pwm-bcm-iproc.
86
Tim Kryger6a4e4bf2014-04-25 11:31:12 -070087config PWM_BCM_KONA
88 tristate "Kona PWM support"
89 depends on ARCH_BCM_MOBILE
90 help
91 Generic PWM framework driver for Broadcom Kona PWM block.
92
93 To compile this driver as a module, choose M here: the module
94 will be called pwm-bcm-kona.
95
Bart Tanghee5a06dc2014-10-08 12:14:32 +020096config PWM_BCM2835
97 tristate "BCM2835 PWM support"
98 depends on ARCH_BCM2835
99 help
100 PWM framework driver for BCM2835 controller (Raspberry Pi)
101
102 To compile this driver as a module, choose M here: the module
103 will be called pwm-bcm2835.
104
Antoine Ténart59d5c8b2015-10-02 16:59:47 +0200105config PWM_BERLIN
106 tristate "Marvell Berlin PWM support"
107 depends on ARCH_BERLIN
108 help
109 PWM framework driver for Marvell Berlin SoCs.
110
111 To compile this driver as a module, choose M here: the module
112 will be called pwm-berlin.
113
Thierry Redinga4315e32012-01-02 20:53:50 +0100114config PWM_BFIN
115 tristate "Blackfin PWM support"
116 depends on BFIN_GPTIMERS
117 help
118 Generic PWM framework driver for Blackfin.
119
120 To compile this driver as a module, choose M here: the module
121 will be called pwm-bfin.
122
Florian Fainelli3a9f5952015-09-14 16:47:06 -0700123config PWM_BRCMSTB
124 tristate "Broadcom STB PWM support"
125 depends on ARCH_BRCMSTB || BMIPS_GENERIC
126 help
127 Generic PWM framework driver for the Broadcom Set-top-Box
128 SoCs (BCM7xxx).
129
130 To compile this driver as a module, choose M Here: the module
131 will be called pwm-brcmstb.c.
132
Alexander Shiyan7eb3f6f2014-03-12 19:53:05 +0400133config PWM_CLPS711X
134 tristate "CLPS711X PWM support"
135 depends on ARCH_CLPS711X || COMPILE_TEST
Chen Gangdec02f92014-10-04 17:48:42 +0800136 depends on HAS_IOMEM
Alexander Shiyan7eb3f6f2014-03-12 19:53:05 +0400137 help
138 Generic PWM framework driver for Cirrus Logic CLPS711X.
139
140 To compile this driver as a module, choose M here: the module
141 will be called pwm-clps711x.
142
Shobhit Kumara3f37a12015-06-26 14:32:08 +0530143config PWM_CRC
144 bool "Intel Crystalcove (CRC) PWM support"
145 depends on X86 && INTEL_SOC_PMIC
146 help
147 Generic PWM framework driver for Crystalcove (CRC) PMIC based PWM
148 control.
149
Brian Norris1f0d3bb2016-07-15 16:28:44 -0700150config PWM_CROS_EC
151 tristate "ChromeOS EC PWM driver"
152 depends on MFD_CROS_EC
153 help
154 PWM driver for exposing a PWM attached to the ChromeOS Embedded
155 Controller.
156
H Hartley Sweetena2308692013-10-15 18:40:03 -0700157config PWM_EP93XX
158 tristate "Cirrus Logic EP93xx PWM support"
159 depends on ARCH_EP93XX
160 help
161 Generic PWM framework driver for Cirrus Logic EP93xx.
162
163 To compile this driver as a module, choose M here: the module
164 will be called pwm-ep93xx.
165
Xiubo Lib5051832014-02-27 17:39:49 +0800166config PWM_FSL_FTM
167 tristate "Freescale FlexTimer Module (FTM) PWM support"
Vegard Nossum36d5be42016-01-02 14:02:07 +0100168 depends on HAS_IOMEM
Xiubo Lib5051832014-02-27 17:39:49 +0800169 depends on OF
Fabio Estevam00018a82014-08-21 20:50:25 -0300170 select REGMAP_MMIO
Xiubo Lib5051832014-02-27 17:39:49 +0800171 help
172 Generic FTM PWM framework driver for Freescale VF610 and
173 Layerscape LS-1 SoCs.
174
175 To compile this driver as a module, choose M here: the module
176 will be called pwm-fsl-ftm.
177
Naidu Tellapati277bb6a2015-01-09 14:54:47 -0300178config PWM_IMG
179 tristate "Imagination Technologies PWM driver"
180 depends on HAS_IOMEM
181 depends on MFD_SYSCON
182 depends on COMMON_CLK
183 depends on MIPS || COMPILE_TEST
184 help
185 Generic PWM framework driver for Imagination Technologies
186 PWM block which supports 4 channels.
187
188 To compile this driver as a module, choose M here: the module
189 will be called pwm-img
190
Sascha Hauer29693242012-03-15 10:04:35 +0100191config PWM_IMX
Thierry Redingb133d2a2013-01-30 09:19:55 +0100192 tristate "i.MX PWM support"
Sascha Hauer29693242012-03-15 10:04:35 +0100193 depends on ARCH_MXC
194 help
195 Generic PWM framework driver for i.MX.
196
197 To compile this driver as a module, choose M here: the module
198 will be called pwm-imx.
199
Thierry Redingf6b8a572012-08-22 10:01:24 +0200200config PWM_JZ4740
201 tristate "Ingenic JZ4740 PWM support"
202 depends on MACH_JZ4740
203 help
204 Generic PWM framework driver for Ingenic JZ4740 based
205 machines.
206
207 To compile this driver as a module, choose M here: the module
208 will be called pwm-jz4740.
209
Milo Kimaf66b3c2013-12-06 11:18:43 +0900210config PWM_LP3943
211 tristate "TI/National Semiconductor LP3943 PWM support"
212 depends on MFD_LP3943
213 help
214 Generic PWM framework driver for LP3943 which supports two PWM
215 channels.
216
217 To compile this driver as a module, choose M here: the module
218 will be called pwm-lp3943.
219
Ariel D'Alessandro841e6f92015-08-05 23:31:46 -0300220config PWM_LPC18XX_SCT
221 tristate "LPC18xx/43xx PWM/SCT support"
222 depends on ARCH_LPC18XX
223 help
224 Generic PWM framework driver for NXP LPC18xx PWM/SCT which
225 supports 16 channels.
226 A maximum of 15 channels can be requested simultaneously and
227 must have the same period.
228
229 To compile this driver as a module, choose M here: the module
230 will be called pwm-lpc18xx-sct.
231
Alexandre Pereira da Silva2132fa82012-07-10 11:38:10 -0300232config PWM_LPC32XX
233 tristate "LPC32XX PWM support"
234 depends on ARCH_LPC32XX
235 help
236 Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
237 PWM controllers.
238
239 To compile this driver as a module, choose M here: the module
240 will be called pwm-lpc32xx.
241
Mika Westerbergd16a5aa2014-03-20 22:04:23 +0800242config PWM_LPSS
Andy Shevchenko6f90a002015-11-18 13:25:17 +0200243 tristate
Mika Westerbergd16a5aa2014-03-20 22:04:23 +0800244
Andy Shevchenkoc558e392014-08-19 19:17:35 +0300245config PWM_LPSS_PCI
246 tristate "Intel LPSS PWM PCI driver"
Andy Shevchenko6f90a002015-11-18 13:25:17 +0200247 depends on X86 && PCI
248 select PWM_LPSS
Andy Shevchenkoc558e392014-08-19 19:17:35 +0300249 help
250 The PCI driver for Intel Low Power Subsystem PWM controller.
251
252 To compile this driver as a module, choose M here: the module
253 will be called pwm-lpss-pci.
254
255config PWM_LPSS_PLATFORM
256 tristate "Intel LPSS PWM platform driver"
Andy Shevchenko6f90a002015-11-18 13:25:17 +0200257 depends on X86 && ACPI
258 select PWM_LPSS
Andy Shevchenkoc558e392014-08-19 19:17:35 +0300259 help
260 The platform driver for Intel Low Power Subsystem PWM controller.
261
262 To compile this driver as a module, choose M here: the module
263 will be called pwm-lpss-platform.
264
Neil Armstrong211ed632016-08-22 17:36:30 +0200265config PWM_MESON
266 tristate "Amlogic Meson PWM driver"
267 depends on ARCH_MESON
268 help
269 The platform driver for Amlogic Meson PWM controller.
270
271 To compile this driver as a module, choose M here: the module
272 will be called pwm-meson.
273
YH Huang7e3b7dc2015-08-18 15:27:54 +0800274config PWM_MTK_DISP
275 tristate "MediaTek display PWM driver"
276 depends on ARCH_MEDIATEK || COMPILE_TEST
277 depends on HAS_IOMEM
278 help
279 Generic PWM framework driver for MediaTek disp-pwm device.
280 The PWM is used to control the backlight brightness for display.
281
282 To compile this driver as a module, choose M here: the module
283 will be called pwm-mtk-disp.
284
Shawn Guo4dce82c2012-04-04 10:50:52 +0800285config PWM_MXS
286 tristate "Freescale MXS PWM support"
287 depends on ARCH_MXS && OF
Shawn Guo01bf32e2012-06-26 16:58:09 +0800288 select STMP_DEVICE
Shawn Guo4dce82c2012-04-04 10:50:52 +0800289 help
290 Generic PWM framework driver for Freescale MXS.
291
292 To compile this driver as a module, choose M here: the module
293 will be called pwm-mxs.
294
Neil Armstrong6604c652015-11-02 12:14:21 +0100295config PWM_OMAP_DMTIMER
296 tristate "OMAP Dual-Mode Timer PWM support"
297 depends on OF && ARCH_OMAP && OMAP_DM_TIMER
298 help
299 Generic PWM framework driver for OMAP Dual-Mode Timer PWM output
300
301 To compile this driver as a module, choose M here: the module
302 will be called pwm-omap-dmtimer
303
Steffen Trumtrar88b613e2013-05-30 09:50:12 +0200304config PWM_PCA9685
305 tristate "NXP PCA9685 PWM driver"
Andy Shevchenko912b8432015-10-07 13:18:49 +0300306 depends on I2C
Axel Lin2c80a492013-12-17 11:51:29 +0800307 select REGMAP_I2C
Steffen Trumtrar88b613e2013-05-30 09:50:12 +0200308 help
309 Generic PWM framework driver for NXP PCA9685 LED controller.
310
311 To compile this driver as a module, choose M here: the module
312 will be called pwm-pca9685.
313
Thierry Reding79c11b62012-08-31 08:29:24 +0200314config PWM_PUV3
315 tristate "PKUnity NetBook-0916 PWM support"
316 depends on ARCH_PUV3
317 help
318 Generic PWM framework driver for PKUnity NetBook-0916.
319
320 To compile this driver as a module, choose M here: the module
321 will be called pwm-puv3.
322
Thierry Reding17b2b472012-01-02 21:22:38 +0100323config PWM_PXA
324 tristate "PXA PWM support"
325 depends on ARCH_PXA
326 help
327 Generic PWM framework driver for PXA.
328
329 To compile this driver as a module, choose M here: the module
330 will be called pwm-pxa.
331
David Collins8885f792017-01-26 14:36:34 -0800332config PWM_QPNP
333 tristate "Qualcomm Technologies, Inc. QPNP LPG/PWM support"
334 depends on SPMI
335 help
336 This driver supports PWM/LPG devices in Qualcomm Technologies, Inc.
337 PMIC chips which comply with QPNP. QPNP is an SPMI based PMIC
338 implementation. These devices support Pulse Width Modulation output
339 with user generated patterns. They share a lookup table with size of
340 64 entries.
341
Yoshihiro Shimodaed6c1472015-09-30 17:47:53 +0900342config PWM_RCAR
343 tristate "Renesas R-Car PWM support"
Ryo Kodama48169982016-03-31 13:39:11 +0200344 depends on ARCH_RENESAS || COMPILE_TEST
Yoshihiro Shimodaed6c1472015-09-30 17:47:53 +0900345 depends on HAS_IOMEM
346 help
347 This driver exposes the PWM Timer controller found in Renesas
348 R-Car chips through the PWM API.
349
350 To compile this driver as a module, choose M here: the module
351 will be called pwm-rcar.
352
Fenglin Wu50b1eba2017-11-16 08:39:11 +0800353config PWM_QTI_LPG
354 tristate "Qualcomm Technologies, Inc. LPG driver"
355 depends on MFD_SPMI_PMIC && OF
356 help
357 This driver supports the LPG (Light Pulse Generator) module found in
358 Qualcomm Technologies, Inc. PMIC chips. Each LPG channel can be
359 configured to operate in PWM mode to output a fixed amplitude with
360 variable duty cycle or in LUT (Look up table) mode to output PWM
361 signal with a modulated amplitude.
362
Laurent Pinchart99b82ab2013-06-13 18:54:44 +0200363config PWM_RENESAS_TPU
364 tristate "Renesas TPU PWM support"
Simon Horman03d99532016-02-25 10:03:23 +0900365 depends on ARCH_RENESAS || COMPILE_TEST
Richard Weinberger2974b092014-01-31 13:45:18 +0100366 depends on HAS_IOMEM
Laurent Pinchart99b82ab2013-06-13 18:54:44 +0200367 help
368 This driver exposes the Timer Pulse Unit (TPU) PWM controller found
369 in Renesas chips through the PWM API.
370
371 To compile this driver as a module, choose M here: the module
372 will be called pwm-renesas-tpu.
373
Beniamino Galvani101353c2014-06-21 16:22:06 +0200374config PWM_ROCKCHIP
375 tristate "Rockchip PWM support"
376 depends on ARCH_ROCKCHIP
377 help
378 Generic PWM framework driver for the PWM controller found on
379 Rockchip SoCs.
380
Sascha Hauer215c29d2012-03-15 10:04:36 +0100381config PWM_SAMSUNG
Thierry Redingb133d2a2013-01-30 09:19:55 +0100382 tristate "Samsung PWM support"
Abhilash Kesavan06e4cb62014-10-31 18:08:46 +0530383 depends on PLAT_SAMSUNG || ARCH_EXYNOS
Sascha Hauer215c29d2012-03-15 10:04:36 +0100384 help
385 Generic PWM framework driver for Samsung.
386
387 To compile this driver as a module, choose M here: the module
388 will be called pwm-samsung.
389
Shiraz Hashimce203642012-10-25 09:39:13 +0530390config PWM_SPEAR
391 tristate "STMicroelectronics SPEAr PWM support"
392 depends on PLAT_SPEAR
393 depends on OF
394 help
395 Generic PWM framework driver for the PWM controller on ST
396 SPEAr SoCs.
397
398 To compile this driver as a module, choose M here: the module
399 will be called pwm-spear.
400
Lee Jones378fe112014-07-14 15:33:27 +0100401config PWM_STI
402 tristate "STiH4xx PWM support"
403 depends on ARCH_STI
404 depends on OF
405 help
406 Generic PWM framework driver for STiH4xx SoCs.
407
408 To compile this driver as a module, choose M here: the module
409 will be called pwm-sti.
410
Linus Walleijef1f09e2016-04-05 23:22:37 +0200411config PWM_STMPE
412 bool "STMPE expander PWM export"
413 depends on MFD_STMPE
414 help
415 This enables support for the PWMs found in the STMPE I/O
416 expanders.
417
Alexandre Belloni09853ce2014-12-17 22:15:39 +0100418config PWM_SUN4I
419 tristate "Allwinner PWM support"
420 depends on ARCH_SUNXI || COMPILE_TEST
421 depends on HAS_IOMEM && COMMON_CLK
422 help
423 Generic PWM framework driver for Allwinner SoCs.
424
425 To compile this driver as a module, choose M here: the module
426 will be called pwm-sun4i.
427
Thierry Reding0134b932011-12-21 07:47:07 +0100428config PWM_TEGRA
429 tristate "NVIDIA Tegra PWM support"
430 depends on ARCH_TEGRA
431 help
432 Generic PWM framework driver for the PWFM controller found on NVIDIA
433 Tegra SoCs.
434
435 To compile this driver as a module, choose M here: the module
436 will be called pwm-tegra.
437
Philip, Avinash8e0cb052012-07-25 16:58:18 +0530438config PWM_TIECAP
439 tristate "ECAP PWM support"
Vignesh R25ebc9e2015-09-08 20:44:05 +0530440 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
Philip, Avinash8e0cb052012-07-25 16:58:18 +0530441 help
442 PWM driver support for the ECAP APWM controller found on AM33XX
443 TI SOC
444
445 To compile this driver as a module, choose M here: the module
446 will be called pwm-tiecap.
447
Philip, Avinash19891b22012-07-25 16:58:19 +0530448config PWM_TIEHRPWM
449 tristate "EHRPWM PWM support"
Vignesh R25ebc9e2015-09-08 20:44:05 +0530450 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
Philip, Avinash19891b22012-07-25 16:58:19 +0530451 help
452 PWM driver support for the EHRPWM controller found on AM33XX
453 TI SOC
454
455 To compile this driver as a module, choose M here: the module
456 will be called pwm-tiehrpwm.
457
Philip, Avinashaf0ba002012-11-27 14:18:06 +0530458config PWM_TIPWMSS
459 bool
Vignesh R25ebc9e2015-09-08 20:44:05 +0530460 default y if (ARCH_OMAP2PLUS) && (PWM_TIECAP || PWM_TIEHRPWM)
Philip, Avinashaf0ba002012-11-27 14:18:06 +0530461 help
462 PWM Subsystem driver support for AM33xx SOC.
463
464 PWM submodules require PWM config space access from submodule
465 drivers and require common parent driver support.
466
Peter Ujfalusi3744c262012-11-27 11:09:57 +0100467config PWM_TWL
468 tristate "TWL4030/6030 PWM support"
469 depends on TWL4030_CORE
470 help
471 Generic PWM framework driver for TWL4030/6030.
472
473 To compile this driver as a module, choose M here: the module
474 will be called pwm-twl.
475
Peter Ujfalusiaa765642012-11-27 11:09:58 +0100476config PWM_TWL_LED
477 tristate "TWL4030/6030 PWM support for LED drivers"
478 depends on TWL4030_CORE
479 help
480 Generic PWM framework driver for TWL4030/6030 LED terminals.
481
482 To compile this driver as a module, choose M here: the module
483 will be called pwm-twl-led.
484
Sascha Hauera245cce2012-03-15 10:04:37 +0100485config PWM_VT8500
Thierry Redingb133d2a2013-01-30 09:19:55 +0100486 tristate "vt8500 PWM support"
Sascha Hauera245cce2012-03-15 10:04:37 +0100487 depends on ARCH_VT8500
488 help
489 Generic PWM framework driver for vt8500.
490
491 To compile this driver as a module, choose M here: the module
492 will be called pwm-vt8500.
493
Sascha Hauer0c2498f2011-01-28 09:40:40 +0100494endif