xref: /openbmc/linux/drivers/pwm/Kconfig (revision 14340de5)
1menuconfig PWM
2	bool "Pulse-Width Modulation (PWM) Support"
3	help
4	  Generic Pulse-Width Modulation (PWM) support.
5
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.
28
29if PWM
30
31config PWM_SYSFS
32	bool
33	default y if SYSFS
34
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
44config PWM_ATMEL
45	tristate "Atmel PWM support"
46	depends on ARCH_AT91
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
53config PWM_ATMEL_HLCDC_PWM
54	tristate "Atmel HLCDC PWM support"
55	depends on MFD_ATMEL_HLCDC
56	depends on HAVE_CLK
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
65config PWM_ATMEL_TCB
66	tristate "Atmel TC Block PWM support"
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
77config PWM_BCM_IPROC
78	tristate "iProc PWM support"
79	depends on ARCH_BCM_IPROC || COMPILE_TEST
80	depends on COMMON_CLK
81	default ARCH_BCM_IPROC
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
89config PWM_BCM_KONA
90	tristate "Kona PWM support"
91	depends on ARCH_BCM_MOBILE || ARCH_BCM_CYGNUS || COMPILE_TEST
92	depends on HAVE_CLK && HAS_IOMEM
93	default ARCH_BCM_MOBILE || ARCH_BCM_CYGNUS
94	help
95	  Generic PWM framework driver for Broadcom Kona PWM block.
96
97	  To compile this driver as a module, choose M here: the module
98	  will be called pwm-bcm-kona.
99
100config PWM_BCM2835
101	tristate "BCM2835 PWM support"
102	depends on ARCH_BCM2835
103	help
104	  PWM framework driver for BCM2835 controller (Raspberry Pi)
105
106	  To compile this driver as a module, choose M here: the module
107	  will be called pwm-bcm2835.
108
109config PWM_BERLIN
110	tristate "Marvell Berlin PWM support"
111	depends on ARCH_BERLIN
112	help
113	  PWM framework driver for Marvell Berlin SoCs.
114
115	  To compile this driver as a module, choose M here: the module
116	  will be called pwm-berlin.
117
118config PWM_BRCMSTB
119	tristate "Broadcom STB PWM support"
120	depends on ARCH_BRCMSTB || BMIPS_GENERIC
121	help
122	  Generic PWM framework driver for the Broadcom Set-top-Box
123	  SoCs (BCM7xxx).
124
125	  To compile this driver as a module, choose M Here: the module
126	  will be called pwm-brcmstb.c.
127
128config PWM_CLPS711X
129	tristate "CLPS711X PWM support"
130	depends on ARCH_CLPS711X || COMPILE_TEST
131	depends on HAS_IOMEM
132	help
133	  Generic PWM framework driver for Cirrus Logic CLPS711X.
134
135	  To compile this driver as a module, choose M here: the module
136	  will be called pwm-clps711x.
137
138config PWM_CRC
139	bool "Intel Crystalcove (CRC) PWM support"
140	depends on X86 && INTEL_SOC_PMIC
141	help
142	  Generic PWM framework driver for Crystalcove (CRC) PMIC based PWM
143	  control.
144
145config PWM_CROS_EC
146	tristate "ChromeOS EC PWM driver"
147	depends on MFD_CROS_EC
148	help
149	  PWM driver for exposing a PWM attached to the ChromeOS Embedded
150	  Controller.
151
152config PWM_EP93XX
153	tristate "Cirrus Logic EP93xx PWM support"
154	depends on ARCH_EP93XX
155	help
156	  Generic PWM framework driver for Cirrus Logic EP93xx.
157
158	  To compile this driver as a module, choose M here: the module
159	  will be called pwm-ep93xx.
160
161config PWM_FSL_FTM
162	tristate "Freescale FlexTimer Module (FTM) PWM support"
163	depends on HAS_IOMEM
164	depends on OF
165	select REGMAP_MMIO
166	help
167	  Generic FTM PWM framework driver for Freescale VF610 and
168	  Layerscape LS-1 SoCs.
169
170	  To compile this driver as a module, choose M here: the module
171	  will be called pwm-fsl-ftm.
172
173config PWM_HIBVT
174	tristate "HiSilicon BVT PWM support"
175	depends on ARCH_HISI || COMPILE_TEST
176	help
177	  Generic PWM framework driver for HiSilicon BVT SoCs.
178
179	  To compile this driver as a module, choose M here: the module
180	  will be called pwm-hibvt.
181
182config PWM_IMG
183	tristate "Imagination Technologies PWM driver"
184	depends on HAS_IOMEM
185	depends on MFD_SYSCON
186	depends on COMMON_CLK
187	depends on MIPS || COMPILE_TEST
188	help
189	  Generic PWM framework driver for Imagination Technologies
190	  PWM block which supports 4 channels.
191
192	  To compile this driver as a module, choose M here: the module
193	  will be called pwm-img
194
195config PWM_IMX1
196	tristate "i.MX1 PWM support"
197	depends on ARCH_MXC
198	help
199	  Generic PWM framework driver for i.MX1 and i.MX21
200
201	  To compile this driver as a module, choose M here: the module
202	  will be called pwm-imx1.
203
204config PWM_IMX27
205	tristate "i.MX27 PWM support"
206	depends on ARCH_MXC
207	help
208	  Generic PWM framework driver for i.MX27 and later i.MX SoCs.
209
210	  To compile this driver as a module, choose M here: the module
211	  will be called pwm-imx27.
212
213config PWM_IMX_TPM
214	tristate "i.MX TPM PWM support"
215	depends on ARCH_MXC || COMPILE_TEST
216	depends on HAVE_CLK && HAS_IOMEM
217	help
218	  Generic PWM framework driver for i.MX7ULP TPM module, TPM's full
219	  name is Low Power Timer/Pulse Width Modulation Module.
220
221	  To compile this driver as a module, choose M here: the module
222	  will be called pwm-imx-tpm.
223
224config PWM_JZ4740
225	tristate "Ingenic JZ47xx PWM support"
226	depends on MACH_INGENIC
227	help
228	  Generic PWM framework driver for Ingenic JZ47xx based
229	  machines.
230
231	  To compile this driver as a module, choose M here: the module
232	  will be called pwm-jz4740.
233
234config PWM_LP3943
235	tristate "TI/National Semiconductor LP3943 PWM support"
236	depends on MFD_LP3943
237	help
238	  Generic PWM framework driver for LP3943 which supports two PWM
239	  channels.
240
241	  To compile this driver as a module, choose M here: the module
242	  will be called pwm-lp3943.
243
244config PWM_LPC18XX_SCT
245	tristate "LPC18xx/43xx PWM/SCT support"
246	depends on ARCH_LPC18XX
247	help
248	  Generic PWM framework driver for NXP LPC18xx PWM/SCT which
249	  supports 16 channels.
250	  A maximum of 15 channels can be requested simultaneously and
251	  must have the same period.
252
253	  To compile this driver as a module, choose M here: the module
254	  will be called pwm-lpc18xx-sct.
255
256config PWM_LPC32XX
257	tristate "LPC32XX PWM support"
258	depends on ARCH_LPC32XX
259	help
260	  Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
261	  PWM controllers.
262
263	  To compile this driver as a module, choose M here: the module
264	  will be called pwm-lpc32xx.
265
266config PWM_LPSS
267	tristate
268
269config PWM_LPSS_PCI
270	tristate "Intel LPSS PWM PCI driver"
271	depends on X86 && PCI
272	select PWM_LPSS
273	help
274	  The PCI driver for Intel Low Power Subsystem PWM controller.
275
276	  To compile this driver as a module, choose M here: the module
277	  will be called pwm-lpss-pci.
278
279config PWM_LPSS_PLATFORM
280	tristate "Intel LPSS PWM platform driver"
281	depends on X86 && ACPI
282	select PWM_LPSS
283	help
284	  The platform driver for Intel Low Power Subsystem PWM controller.
285
286	  To compile this driver as a module, choose M here: the module
287	  will be called pwm-lpss-platform.
288
289config PWM_MESON
290	tristate "Amlogic Meson PWM driver"
291	depends on ARCH_MESON
292	help
293	  The platform driver for Amlogic Meson PWM controller.
294
295	  To compile this driver as a module, choose M here: the module
296	  will be called pwm-meson.
297
298config PWM_MTK_DISP
299	tristate "MediaTek display PWM driver"
300	depends on ARCH_MEDIATEK || COMPILE_TEST
301	depends on HAS_IOMEM
302	help
303	  Generic PWM framework driver for MediaTek disp-pwm device.
304	  The PWM is used to control the backlight brightness for display.
305
306	  To compile this driver as a module, choose M here: the module
307	  will be called pwm-mtk-disp.
308
309config PWM_MEDIATEK
310	tristate "MediaTek PWM support"
311	depends on ARCH_MEDIATEK || RALINK || COMPILE_TEST
312	help
313	  Generic PWM framework driver for Mediatek ARM SoC.
314
315	  To compile this driver as a module, choose M here: the module
316	  will be called pwm-mediatek.
317
318config PWM_MXS
319	tristate "Freescale MXS PWM support"
320	depends on ARCH_MXS && OF
321	select STMP_DEVICE
322	help
323	  Generic PWM framework driver for Freescale MXS.
324
325	  To compile this driver as a module, choose M here: the module
326	  will be called pwm-mxs.
327
328config PWM_OMAP_DMTIMER
329	tristate "OMAP Dual-Mode Timer PWM support"
330	depends on OF && ARCH_OMAP && OMAP_DM_TIMER
331	help
332	  Generic PWM framework driver for OMAP Dual-Mode Timer PWM output
333
334	  To compile this driver as a module, choose M here: the module
335	  will be called pwm-omap-dmtimer
336
337config PWM_PCA9685
338	tristate "NXP PCA9685 PWM driver"
339	depends on I2C
340	select REGMAP_I2C
341	help
342	  Generic PWM framework driver for NXP PCA9685 LED controller.
343
344	  To compile this driver as a module, choose M here: the module
345	  will be called pwm-pca9685.
346
347config PWM_PUV3
348	tristate "PKUnity NetBook-0916 PWM support"
349	depends on ARCH_PUV3
350	help
351	  Generic PWM framework driver for PKUnity NetBook-0916.
352
353	  To compile this driver as a module, choose M here: the module
354	  will be called pwm-puv3.
355
356config PWM_PXA
357	tristate "PXA PWM support"
358	depends on ARCH_PXA
359	help
360	  Generic PWM framework driver for PXA.
361
362	  To compile this driver as a module, choose M here: the module
363	  will be called pwm-pxa.
364
365config PWM_RCAR
366	tristate "Renesas R-Car PWM support"
367	depends on ARCH_RENESAS || COMPILE_TEST
368	depends on HAS_IOMEM
369	help
370	  This driver exposes the PWM Timer controller found in Renesas
371	  R-Car chips through the PWM API.
372
373	  To compile this driver as a module, choose M here: the module
374	  will be called pwm-rcar.
375
376config PWM_RENESAS_TPU
377	tristate "Renesas TPU PWM support"
378	depends on ARCH_RENESAS || COMPILE_TEST
379	depends on HAS_IOMEM
380	help
381	  This driver exposes the Timer Pulse Unit (TPU) PWM controller found
382	  in Renesas chips through the PWM API.
383
384	  To compile this driver as a module, choose M here: the module
385	  will be called pwm-renesas-tpu.
386
387config PWM_ROCKCHIP
388	tristate "Rockchip PWM support"
389	depends on ARCH_ROCKCHIP
390	help
391	  Generic PWM framework driver for the PWM controller found on
392	  Rockchip SoCs.
393
394config PWM_SAMSUNG
395	tristate "Samsung PWM support"
396	depends on PLAT_SAMSUNG || ARCH_EXYNOS
397	help
398	  Generic PWM framework driver for Samsung.
399
400	  To compile this driver as a module, choose M here: the module
401	  will be called pwm-samsung.
402
403config PWM_SPEAR
404	tristate "STMicroelectronics SPEAr PWM support"
405	depends on PLAT_SPEAR
406	depends on OF
407	help
408	  Generic PWM framework driver for the PWM controller on ST
409	  SPEAr SoCs.
410
411	  To compile this driver as a module, choose M here: the module
412	  will be called pwm-spear.
413
414config PWM_STI
415	tristate "STiH4xx PWM support"
416	depends on ARCH_STI
417	depends on OF
418	help
419	  Generic PWM framework driver for STiH4xx SoCs.
420
421	  To compile this driver as a module, choose M here: the module
422	  will be called pwm-sti.
423
424config PWM_STM32
425	tristate "STMicroelectronics STM32 PWM"
426	depends on MFD_STM32_TIMERS
427	help
428	  Generic PWM framework driver for STM32 SoCs.
429
430	  To compile this driver as a module, choose M here: the module
431	  will be called pwm-stm32.
432
433config PWM_STM32_LP
434	tristate "STMicroelectronics STM32 PWM LP"
435	depends on MFD_STM32_LPTIMER || COMPILE_TEST
436	help
437	  Generic PWM framework driver for STMicroelectronics STM32 SoCs
438	  with Low-Power Timer (LPTIM).
439
440	  To compile this driver as a module, choose M here: the module
441	  will be called pwm-stm32-lp.
442
443config PWM_STMPE
444	bool "STMPE expander PWM export"
445	depends on MFD_STMPE
446	help
447	  This enables support for the PWMs found in the STMPE I/O
448	  expanders.
449
450config PWM_SUN4I
451	tristate "Allwinner PWM support"
452	depends on ARCH_SUNXI || COMPILE_TEST
453	depends on HAS_IOMEM && COMMON_CLK
454	help
455	  Generic PWM framework driver for Allwinner SoCs.
456
457	  To compile this driver as a module, choose M here: the module
458	  will be called pwm-sun4i.
459
460config PWM_TEGRA
461	tristate "NVIDIA Tegra PWM support"
462	depends on ARCH_TEGRA
463	help
464	  Generic PWM framework driver for the PWFM controller found on NVIDIA
465	  Tegra SoCs.
466
467	  To compile this driver as a module, choose M here: the module
468	  will be called pwm-tegra.
469
470config  PWM_TIECAP
471	tristate "ECAP PWM support"
472	depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX || ARCH_KEYSTONE || ARCH_K3
473	help
474	  PWM driver support for the ECAP APWM controller found on TI SOCs
475
476	  To compile this driver as a module, choose M here: the module
477	  will be called pwm-tiecap.
478
479config  PWM_TIEHRPWM
480	tristate "EHRPWM PWM support"
481	depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX || ARCH_K3
482	help
483	  PWM driver support for the EHRPWM controller found on TI SOCs
484
485	  To compile this driver as a module, choose M here: the module
486	  will be called pwm-tiehrpwm.
487
488config  PWM_TIPWMSS
489	bool
490	default y if (ARCH_OMAP2PLUS) && (PWM_TIECAP || PWM_TIEHRPWM)
491	help
492	  PWM Subsystem driver support for AM33xx SOC.
493
494	  PWM submodules require PWM config space access from submodule
495	  drivers and require common parent driver support.
496
497config PWM_TWL
498	tristate "TWL4030/6030 PWM support"
499	depends on TWL4030_CORE
500	help
501	  Generic PWM framework driver for TWL4030/6030.
502
503	  To compile this driver as a module, choose M here: the module
504	  will be called pwm-twl.
505
506config PWM_TWL_LED
507	tristate "TWL4030/6030 PWM support for LED drivers"
508	depends on TWL4030_CORE
509	help
510	  Generic PWM framework driver for TWL4030/6030 LED terminals.
511
512	  To compile this driver as a module, choose M here: the module
513	  will be called pwm-twl-led.
514
515config PWM_VT8500
516	tristate "vt8500 PWM support"
517	depends on ARCH_VT8500
518	help
519	  Generic PWM framework driver for vt8500.
520
521	  To compile this driver as a module, choose M here: the module
522	  will be called pwm-vt8500.
523
524config PWM_ZX
525	tristate "ZTE ZX PWM support"
526	depends on ARCH_ZX
527	help
528	  Generic PWM framework driver for ZTE ZX family SoCs.
529
530	  To compile this driver as a module, choose M here: the module
531	  will be called pwm-zx.
532
533endif
534