xref: /openbmc/linux/drivers/pwm/Kconfig (revision d683469b)
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_AB8500
37	tristate "AB8500 PWM support"
38	depends on AB8500_CORE && ARCH_U8500
39	help
40	  Generic PWM framework driver for Analog Baseband AB8500.
41
42	  To compile this driver as a module, choose M here: the module
43	  will be called pwm-ab8500.
44
45config PWM_ATMEL
46	tristate "Atmel PWM support"
47	depends on ARCH_AT91 && OF
48	help
49	  Generic PWM framework driver for Atmel SoC.
50
51	  To compile this driver as a module, choose M here: the module
52	  will be called pwm-atmel.
53
54config PWM_ATMEL_HLCDC_PWM
55	tristate "Atmel HLCDC PWM support"
56	depends on MFD_ATMEL_HLCDC
57	depends on HAVE_CLK
58	help
59	  Generic PWM framework driver for the PWM output of the HLCDC
60	  (Atmel High-end LCD Controller). This PWM output is mainly used
61	  to control the LCD backlight.
62
63	  To compile this driver as a module, choose M here: the module
64	  will be called pwm-atmel-hlcdc.
65
66config PWM_ATMEL_TCB
67	tristate "Atmel TC Block PWM support"
68	depends on ATMEL_TCLIB && OF
69	help
70	  Generic PWM framework driver for Atmel Timer Counter Block.
71
72	  A Timer Counter Block provides 6 PWM devices grouped by 2.
73	  Devices in a given group must have the same period.
74
75	  To compile this driver as a module, choose M here: the module
76	  will be called pwm-atmel-tcb.
77
78config PWM_BCM_IPROC
79	tristate "iProc PWM support"
80	depends on ARCH_BCM_IPROC || COMPILE_TEST
81	depends on COMMON_CLK
82	default ARCH_BCM_IPROC
83	help
84	  Generic PWM framework driver for Broadcom iProc PWM block. This
85	  block is used in Broadcom iProc SoC's.
86
87	  To compile this driver as a module, choose M here: the module
88	  will be called pwm-bcm-iproc.
89
90config PWM_BCM_KONA
91	tristate "Kona PWM support"
92	depends on ARCH_BCM_MOBILE || ARCH_BCM_CYGNUS || COMPILE_TEST
93	depends on HAVE_CLK && HAS_IOMEM
94	default ARCH_BCM_MOBILE || ARCH_BCM_CYGNUS
95	help
96	  Generic PWM framework driver for Broadcom Kona PWM block.
97
98	  To compile this driver as a module, choose M here: the module
99	  will be called pwm-bcm-kona.
100
101config PWM_BCM2835
102	tristate "BCM2835 PWM support"
103	depends on ARCH_BCM2835 || ARCH_BRCMSTB
104	help
105	  PWM framework driver for BCM2835 controller (Raspberry Pi)
106
107	  To compile this driver as a module, choose M here: the module
108	  will be called pwm-bcm2835.
109
110config PWM_BERLIN
111	tristate "Marvell Berlin PWM support"
112	depends on ARCH_BERLIN
113	help
114	  PWM framework driver for Marvell Berlin SoCs.
115
116	  To compile this driver as a module, choose M here: the module
117	  will be called pwm-berlin.
118
119config PWM_BRCMSTB
120	tristate "Broadcom STB PWM support"
121	depends on ARCH_BRCMSTB || BMIPS_GENERIC
122	help
123	  Generic PWM framework driver for the Broadcom Set-top-Box
124	  SoCs (BCM7xxx).
125
126	  To compile this driver as a module, choose M Here: the module
127	  will be called pwm-brcmstb.c.
128
129config PWM_CLPS711X
130	tristate "CLPS711X PWM support"
131	depends on ARCH_CLPS711X || COMPILE_TEST
132	depends on HAS_IOMEM
133	help
134	  Generic PWM framework driver for Cirrus Logic CLPS711X.
135
136	  To compile this driver as a module, choose M here: the module
137	  will be called pwm-clps711x.
138
139config PWM_CRC
140	bool "Intel Crystalcove (CRC) PWM support"
141	depends on X86 && INTEL_SOC_PMIC
142	help
143	  Generic PWM framework driver for Crystalcove (CRC) PMIC based PWM
144	  control.
145
146config PWM_CROS_EC
147	tristate "ChromeOS EC PWM driver"
148	depends on CROS_EC
149	help
150	  PWM driver for exposing a PWM attached to the ChromeOS Embedded
151	  Controller.
152
153config PWM_EP93XX
154	tristate "Cirrus Logic EP93xx PWM support"
155	depends on ARCH_EP93XX
156	help
157	  Generic PWM framework driver for Cirrus Logic EP93xx.
158
159	  To compile this driver as a module, choose M here: the module
160	  will be called pwm-ep93xx.
161
162config PWM_FSL_FTM
163	tristate "Freescale FlexTimer Module (FTM) PWM support"
164	depends on HAS_IOMEM
165	depends on OF
166	select REGMAP_MMIO
167	help
168	  Generic FTM PWM framework driver for Freescale VF610 and
169	  Layerscape LS-1 SoCs.
170
171	  To compile this driver as a module, choose M here: the module
172	  will be called pwm-fsl-ftm.
173
174config PWM_HIBVT
175	tristate "HiSilicon BVT PWM support"
176	depends on ARCH_HISI || COMPILE_TEST
177	help
178	  Generic PWM framework driver for HiSilicon BVT SoCs.
179
180	  To compile this driver as a module, choose M here: the module
181	  will be called pwm-hibvt.
182
183config PWM_IMG
184	tristate "Imagination Technologies PWM driver"
185	depends on HAS_IOMEM
186	depends on MFD_SYSCON
187	depends on COMMON_CLK
188	depends on MIPS || COMPILE_TEST
189	help
190	  Generic PWM framework driver for Imagination Technologies
191	  PWM block which supports 4 channels.
192
193	  To compile this driver as a module, choose M here: the module
194	  will be called pwm-img
195
196config PWM_IMX1
197	tristate "i.MX1 PWM support"
198	depends on ARCH_MXC
199	help
200	  Generic PWM framework driver for i.MX1 and i.MX21
201
202	  To compile this driver as a module, choose M here: the module
203	  will be called pwm-imx1.
204
205config PWM_IMX27
206	tristate "i.MX27 PWM support"
207	depends on ARCH_MXC
208	help
209	  Generic PWM framework driver for i.MX27 and later i.MX SoCs.
210
211	  To compile this driver as a module, choose M here: the module
212	  will be called pwm-imx27.
213
214config PWM_IMX_TPM
215	tristate "i.MX TPM PWM support"
216	depends on ARCH_MXC || COMPILE_TEST
217	depends on HAVE_CLK && HAS_IOMEM
218	help
219	  Generic PWM framework driver for i.MX7ULP TPM module, TPM's full
220	  name is Low Power Timer/Pulse Width Modulation Module.
221
222	  To compile this driver as a module, choose M here: the module
223	  will be called pwm-imx-tpm.
224
225config PWM_JZ4740
226	tristate "Ingenic JZ47xx PWM support"
227	depends on MACH_INGENIC
228	help
229	  Generic PWM framework driver for Ingenic JZ47xx based
230	  machines.
231
232	  To compile this driver as a module, choose M here: the module
233	  will be called pwm-jz4740.
234
235config PWM_LP3943
236	tristate "TI/National Semiconductor LP3943 PWM support"
237	depends on MFD_LP3943
238	help
239	  Generic PWM framework driver for LP3943 which supports two PWM
240	  channels.
241
242	  To compile this driver as a module, choose M here: the module
243	  will be called pwm-lp3943.
244
245config PWM_LPC18XX_SCT
246	tristate "LPC18xx/43xx PWM/SCT support"
247	depends on ARCH_LPC18XX
248	help
249	  Generic PWM framework driver for NXP LPC18xx PWM/SCT which
250	  supports 16 channels.
251	  A maximum of 15 channels can be requested simultaneously and
252	  must have the same period.
253
254	  To compile this driver as a module, choose M here: the module
255	  will be called pwm-lpc18xx-sct.
256
257config PWM_LPC32XX
258	tristate "LPC32XX PWM support"
259	depends on ARCH_LPC32XX
260	help
261	  Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
262	  PWM controllers.
263
264	  To compile this driver as a module, choose M here: the module
265	  will be called pwm-lpc32xx.
266
267config PWM_LPSS
268	tristate
269
270config PWM_LPSS_PCI
271	tristate "Intel LPSS PWM PCI driver"
272	depends on X86 && PCI
273	select PWM_LPSS
274	help
275	  The PCI driver for Intel Low Power Subsystem PWM controller.
276
277	  To compile this driver as a module, choose M here: the module
278	  will be called pwm-lpss-pci.
279
280config PWM_LPSS_PLATFORM
281	tristate "Intel LPSS PWM platform driver"
282	depends on X86 && ACPI
283	select PWM_LPSS
284	help
285	  The platform driver for Intel Low Power Subsystem PWM controller.
286
287	  To compile this driver as a module, choose M here: the module
288	  will be called pwm-lpss-platform.
289
290config PWM_MESON
291	tristate "Amlogic Meson PWM driver"
292	depends on ARCH_MESON
293	help
294	  The platform driver for Amlogic Meson PWM controller.
295
296	  To compile this driver as a module, choose M here: the module
297	  will be called pwm-meson.
298
299config PWM_MTK_DISP
300	tristate "MediaTek display PWM driver"
301	depends on ARCH_MEDIATEK || COMPILE_TEST
302	depends on HAS_IOMEM
303	help
304	  Generic PWM framework driver for MediaTek disp-pwm device.
305	  The PWM is used to control the backlight brightness for display.
306
307	  To compile this driver as a module, choose M here: the module
308	  will be called pwm-mtk-disp.
309
310config PWM_MEDIATEK
311	tristate "MediaTek PWM support"
312	depends on ARCH_MEDIATEK || RALINK || COMPILE_TEST
313	help
314	  Generic PWM framework driver for Mediatek ARM SoC.
315
316	  To compile this driver as a module, choose M here: the module
317	  will be called pwm-mediatek.
318
319config PWM_MXS
320	tristate "Freescale MXS PWM support"
321	depends on ARCH_MXS && OF
322	select STMP_DEVICE
323	help
324	  Generic PWM framework driver for Freescale MXS.
325
326	  To compile this driver as a module, choose M here: the module
327	  will be called pwm-mxs.
328
329config PWM_OMAP_DMTIMER
330	tristate "OMAP Dual-Mode Timer PWM support"
331	depends on OF
332	depends on OMAP_DM_TIMER || COMPILE_TEST
333	help
334	  Generic PWM framework driver for OMAP Dual-Mode Timer PWM output
335
336	  To compile this driver as a module, choose M here: the module
337	  will be called pwm-omap-dmtimer
338
339config PWM_PCA9685
340	tristate "NXP PCA9685 PWM driver"
341	depends on I2C
342	select REGMAP_I2C
343	help
344	  Generic PWM framework driver for NXP PCA9685 LED controller.
345
346	  To compile this driver as a module, choose M here: the module
347	  will be called pwm-pca9685.
348
349config PWM_PUV3
350	tristate "PKUnity NetBook-0916 PWM support"
351	depends on ARCH_PUV3
352	help
353	  Generic PWM framework driver for PKUnity NetBook-0916.
354
355	  To compile this driver as a module, choose M here: the module
356	  will be called pwm-puv3.
357
358config PWM_PXA
359	tristate "PXA PWM support"
360	depends on ARCH_PXA
361	help
362	  Generic PWM framework driver for PXA.
363
364	  To compile this driver as a module, choose M here: the module
365	  will be called pwm-pxa.
366
367config PWM_RCAR
368	tristate "Renesas R-Car PWM support"
369	depends on ARCH_RENESAS || COMPILE_TEST
370	depends on HAS_IOMEM
371	help
372	  This driver exposes the PWM Timer controller found in Renesas
373	  R-Car chips through the PWM API.
374
375	  To compile this driver as a module, choose M here: the module
376	  will be called pwm-rcar.
377
378config PWM_RENESAS_TPU
379	tristate "Renesas TPU PWM support"
380	depends on ARCH_RENESAS || COMPILE_TEST
381	depends on HAS_IOMEM
382	help
383	  This driver exposes the Timer Pulse Unit (TPU) PWM controller found
384	  in Renesas chips through the PWM API.
385
386	  To compile this driver as a module, choose M here: the module
387	  will be called pwm-renesas-tpu.
388
389config PWM_ROCKCHIP
390	tristate "Rockchip PWM support"
391	depends on ARCH_ROCKCHIP
392	help
393	  Generic PWM framework driver for the PWM controller found on
394	  Rockchip SoCs.
395
396config PWM_SAMSUNG
397	tristate "Samsung PWM support"
398	depends on PLAT_SAMSUNG || ARCH_EXYNOS
399	help
400	  Generic PWM framework driver for Samsung.
401
402	  To compile this driver as a module, choose M here: the module
403	  will be called pwm-samsung.
404
405config PWM_SIFIVE
406	tristate "SiFive PWM support"
407	depends on OF
408	depends on COMMON_CLK
409	depends on RISCV || COMPILE_TEST
410	help
411	  Generic PWM framework driver for SiFive SoCs.
412
413	  To compile this driver as a module, choose M here: the module
414	  will be called pwm-sifive.
415
416config PWM_SPEAR
417	tristate "STMicroelectronics SPEAr PWM support"
418	depends on PLAT_SPEAR
419	depends on OF
420	help
421	  Generic PWM framework driver for the PWM controller on ST
422	  SPEAr SoCs.
423
424	  To compile this driver as a module, choose M here: the module
425	  will be called pwm-spear.
426
427config PWM_SPRD
428	tristate "Spreadtrum PWM support"
429	depends on ARCH_SPRD || COMPILE_TEST
430	depends on HAS_IOMEM
431	help
432	  Generic PWM framework driver for the PWM controller on
433	  Spreadtrum SoCs.
434
435	  To compile this driver as a module, choose M here: the module
436	  will be called pwm-sprd.
437
438config PWM_STI
439	tristate "STiH4xx PWM support"
440	depends on ARCH_STI
441	depends on OF
442	help
443	  Generic PWM framework driver for STiH4xx SoCs.
444
445	  To compile this driver as a module, choose M here: the module
446	  will be called pwm-sti.
447
448config PWM_STM32
449	tristate "STMicroelectronics STM32 PWM"
450	depends on MFD_STM32_TIMERS
451	help
452	  Generic PWM framework driver for STM32 SoCs.
453
454	  To compile this driver as a module, choose M here: the module
455	  will be called pwm-stm32.
456
457config PWM_STM32_LP
458	tristate "STMicroelectronics STM32 PWM LP"
459	depends on MFD_STM32_LPTIMER || COMPILE_TEST
460	help
461	  Generic PWM framework driver for STMicroelectronics STM32 SoCs
462	  with Low-Power Timer (LPTIM).
463
464	  To compile this driver as a module, choose M here: the module
465	  will be called pwm-stm32-lp.
466
467config PWM_STMPE
468	bool "STMPE expander PWM export"
469	depends on MFD_STMPE
470	help
471	  This enables support for the PWMs found in the STMPE I/O
472	  expanders.
473
474config PWM_SUN4I
475	tristate "Allwinner PWM support"
476	depends on ARCH_SUNXI || COMPILE_TEST
477	depends on HAS_IOMEM && COMMON_CLK
478	help
479	  Generic PWM framework driver for Allwinner SoCs.
480
481	  To compile this driver as a module, choose M here: the module
482	  will be called pwm-sun4i.
483
484config PWM_TEGRA
485	tristate "NVIDIA Tegra PWM support"
486	depends on ARCH_TEGRA
487	help
488	  Generic PWM framework driver for the PWFM controller found on NVIDIA
489	  Tegra SoCs.
490
491	  To compile this driver as a module, choose M here: the module
492	  will be called pwm-tegra.
493
494config PWM_TIECAP
495	tristate "ECAP PWM support"
496	depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX || ARCH_KEYSTONE || ARCH_K3
497	help
498	  PWM driver support for the ECAP APWM controller found on TI SOCs
499
500	  To compile this driver as a module, choose M here: the module
501	  will be called pwm-tiecap.
502
503config PWM_TIEHRPWM
504	tristate "EHRPWM PWM support"
505	depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX || ARCH_K3
506	help
507	  PWM driver support for the EHRPWM controller found on TI SOCs
508
509	  To compile this driver as a module, choose M here: the module
510	  will be called pwm-tiehrpwm.
511
512config PWM_TWL
513	tristate "TWL4030/6030 PWM support"
514	depends on TWL4030_CORE
515	help
516	  Generic PWM framework driver for TWL4030/6030.
517
518	  To compile this driver as a module, choose M here: the module
519	  will be called pwm-twl.
520
521config PWM_TWL_LED
522	tristate "TWL4030/6030 PWM support for LED drivers"
523	depends on TWL4030_CORE
524	help
525	  Generic PWM framework driver for TWL4030/6030 LED terminals.
526
527	  To compile this driver as a module, choose M here: the module
528	  will be called pwm-twl-led.
529
530config PWM_VT8500
531	tristate "vt8500 PWM support"
532	depends on ARCH_VT8500
533	help
534	  Generic PWM framework driver for vt8500.
535
536	  To compile this driver as a module, choose M here: the module
537	  will be called pwm-vt8500.
538
539config PWM_ZX
540	tristate "ZTE ZX PWM support"
541	depends on ARCH_ZX
542	help
543	  Generic PWM framework driver for ZTE ZX family SoCs.
544
545	  To compile this driver as a module, choose M here: the module
546	  will be called pwm-zx.
547
548endif
549