xref: /openbmc/linux/drivers/pwm/Kconfig (revision 0da85d1e) 
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 || AVR32
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_KONA
78	tristate "Kona PWM support"
79	depends on ARCH_BCM_MOBILE
80	help
81	  Generic PWM framework driver for Broadcom Kona PWM block.
82
83	  To compile this driver as a module, choose M here: the module
84	  will be called pwm-bcm-kona.
85
86config PWM_BCM2835
87	tristate "BCM2835 PWM support"
88	depends on ARCH_BCM2835
89	help
90	  PWM framework driver for BCM2835 controller (Raspberry Pi)
91
92	  To compile this driver as a module, choose M here: the module
93	  will be called pwm-bcm2835.
94
95config PWM_BFIN
96	tristate "Blackfin PWM support"
97	depends on BFIN_GPTIMERS
98	help
99	  Generic PWM framework driver for Blackfin.
100
101	  To compile this driver as a module, choose M here: the module
102	  will be called pwm-bfin.
103
104config PWM_CLPS711X
105	tristate "CLPS711X PWM support"
106	depends on ARCH_CLPS711X || COMPILE_TEST
107	depends on HAS_IOMEM
108	help
109	  Generic PWM framework driver for Cirrus Logic CLPS711X.
110
111	  To compile this driver as a module, choose M here: the module
112	  will be called pwm-clps711x.
113
114config PWM_EP93XX
115	tristate "Cirrus Logic EP93xx PWM support"
116	depends on ARCH_EP93XX
117	help
118	  Generic PWM framework driver for Cirrus Logic EP93xx.
119
120	  To compile this driver as a module, choose M here: the module
121	  will be called pwm-ep93xx.
122
123config PWM_FSL_FTM
124	tristate "Freescale FlexTimer Module (FTM) PWM support"
125	depends on OF
126	select REGMAP_MMIO
127	help
128	  Generic FTM PWM framework driver for Freescale VF610 and
129	  Layerscape LS-1 SoCs.
130
131	  To compile this driver as a module, choose M here: the module
132	  will be called pwm-fsl-ftm.
133
134config PWM_IMG
135	tristate "Imagination Technologies PWM driver"
136	depends on HAS_IOMEM
137	depends on MFD_SYSCON
138	depends on COMMON_CLK
139	depends on MIPS || COMPILE_TEST
140	help
141	  Generic PWM framework driver for Imagination Technologies
142	  PWM block which supports 4 channels.
143
144	  To compile this driver as a module, choose M here: the module
145	  will be called pwm-img
146
147config PWM_IMX
148	tristate "i.MX PWM support"
149	depends on ARCH_MXC
150	help
151	  Generic PWM framework driver for i.MX.
152
153	  To compile this driver as a module, choose M here: the module
154	  will be called pwm-imx.
155
156config PWM_JZ4740
157	tristate "Ingenic JZ4740 PWM support"
158	depends on MACH_JZ4740
159	help
160	  Generic PWM framework driver for Ingenic JZ4740 based
161	  machines.
162
163	  To compile this driver as a module, choose M here: the module
164	  will be called pwm-jz4740.
165
166config PWM_LP3943
167	tristate "TI/National Semiconductor LP3943 PWM support"
168	depends on MFD_LP3943
169	help
170	  Generic PWM framework driver for LP3943 which supports two PWM
171	  channels.
172
173	  To compile this driver as a module, choose M here: the module
174	  will be called pwm-lp3943.
175
176config PWM_LPC32XX
177	tristate "LPC32XX PWM support"
178	depends on ARCH_LPC32XX
179	help
180	  Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
181	  PWM controllers.
182
183	  To compile this driver as a module, choose M here: the module
184	  will be called pwm-lpc32xx.
185
186config PWM_LPSS
187	tristate "Intel LPSS PWM support"
188	depends on X86
189	help
190	  Generic PWM framework driver for Intel Low Power Subsystem PWM
191	  controller.
192
193	  To compile this driver as a module, choose M here: the module
194	  will be called pwm-lpss.
195
196config PWM_LPSS_PCI
197	tristate "Intel LPSS PWM PCI driver"
198	depends on PWM_LPSS && PCI
199	help
200	  The PCI driver for Intel Low Power Subsystem PWM controller.
201
202	  To compile this driver as a module, choose M here: the module
203	  will be called pwm-lpss-pci.
204
205config PWM_LPSS_PLATFORM
206	tristate "Intel LPSS PWM platform driver"
207	depends on PWM_LPSS && ACPI
208	help
209	  The platform driver for Intel Low Power Subsystem PWM controller.
210
211	  To compile this driver as a module, choose M here: the module
212	  will be called pwm-lpss-platform.
213
214config PWM_MXS
215	tristate "Freescale MXS PWM support"
216	depends on ARCH_MXS && OF
217	select STMP_DEVICE
218	help
219	  Generic PWM framework driver for Freescale MXS.
220
221	  To compile this driver as a module, choose M here: the module
222	  will be called pwm-mxs.
223
224config PWM_PCA9685
225	tristate "NXP PCA9685 PWM driver"
226	depends on OF && I2C
227	select REGMAP_I2C
228	help
229	  Generic PWM framework driver for NXP PCA9685 LED controller.
230
231	  To compile this driver as a module, choose M here: the module
232	  will be called pwm-pca9685.
233
234config PWM_PUV3
235	tristate "PKUnity NetBook-0916 PWM support"
236	depends on ARCH_PUV3
237	help
238	  Generic PWM framework driver for PKUnity NetBook-0916.
239
240	  To compile this driver as a module, choose M here: the module
241	  will be called pwm-puv3.
242
243config PWM_PXA
244	tristate "PXA PWM support"
245	depends on ARCH_PXA
246	help
247	  Generic PWM framework driver for PXA.
248
249	  To compile this driver as a module, choose M here: the module
250	  will be called pwm-pxa.
251
252config PWM_RENESAS_TPU
253	tristate "Renesas TPU PWM support"
254	depends on ARCH_SHMOBILE || COMPILE_TEST
255	depends on HAS_IOMEM
256	help
257	  This driver exposes the Timer Pulse Unit (TPU) PWM controller found
258	  in Renesas chips through the PWM API.
259
260	  To compile this driver as a module, choose M here: the module
261	  will be called pwm-renesas-tpu.
262
263config PWM_ROCKCHIP
264	tristate "Rockchip PWM support"
265	depends on ARCH_ROCKCHIP
266	help
267	  Generic PWM framework driver for the PWM controller found on
268	  Rockchip SoCs.
269
270config PWM_SAMSUNG
271	tristate "Samsung PWM support"
272	depends on PLAT_SAMSUNG || ARCH_EXYNOS
273	help
274	  Generic PWM framework driver for Samsung.
275
276	  To compile this driver as a module, choose M here: the module
277	  will be called pwm-samsung.
278
279config PWM_SPEAR
280	tristate "STMicroelectronics SPEAr PWM support"
281	depends on PLAT_SPEAR
282	depends on OF
283	help
284	  Generic PWM framework driver for the PWM controller on ST
285	  SPEAr SoCs.
286
287	  To compile this driver as a module, choose M here: the module
288	  will be called pwm-spear.
289
290config PWM_STI
291	tristate "STiH4xx PWM support"
292	depends on ARCH_STI
293	depends on OF
294	help
295	  Generic PWM framework driver for STiH4xx SoCs.
296
297	  To compile this driver as a module, choose M here: the module
298	  will be called pwm-sti.
299
300config PWM_SUN4I
301	tristate "Allwinner PWM support"
302	depends on ARCH_SUNXI || COMPILE_TEST
303	depends on HAS_IOMEM && COMMON_CLK
304	help
305	  Generic PWM framework driver for Allwinner SoCs.
306
307	  To compile this driver as a module, choose M here: the module
308	  will be called pwm-sun4i.
309
310config PWM_TEGRA
311	tristate "NVIDIA Tegra PWM support"
312	depends on ARCH_TEGRA
313	help
314	  Generic PWM framework driver for the PWFM controller found on NVIDIA
315	  Tegra SoCs.
316
317	  To compile this driver as a module, choose M here: the module
318	  will be called pwm-tegra.
319
320config  PWM_TIECAP
321	tristate "ECAP PWM support"
322	depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
323	help
324	  PWM driver support for the ECAP APWM controller found on AM33XX
325	  TI SOC
326
327	  To compile this driver as a module, choose M here: the module
328	  will be called pwm-tiecap.
329
330config  PWM_TIEHRPWM
331	tristate "EHRPWM PWM support"
332	depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
333	help
334	  PWM driver support for the EHRPWM controller found on AM33XX
335	  TI SOC
336
337	  To compile this driver as a module, choose M here: the module
338	  will be called pwm-tiehrpwm.
339
340config  PWM_TIPWMSS
341	bool
342	default y if SOC_AM33XX && (PWM_TIECAP || PWM_TIEHRPWM)
343	help
344	  PWM Subsystem driver support for AM33xx SOC.
345
346	  PWM submodules require PWM config space access from submodule
347	  drivers and require common parent driver support.
348
349config PWM_TWL
350	tristate "TWL4030/6030 PWM support"
351	depends on TWL4030_CORE
352	help
353	  Generic PWM framework driver for TWL4030/6030.
354
355	  To compile this driver as a module, choose M here: the module
356	  will be called pwm-twl.
357
358config PWM_TWL_LED
359	tristate "TWL4030/6030 PWM support for LED drivers"
360	depends on TWL4030_CORE
361	help
362	  Generic PWM framework driver for TWL4030/6030 LED terminals.
363
364	  To compile this driver as a module, choose M here: the module
365	  will be called pwm-twl-led.
366
367config PWM_VT8500
368	tristate "vt8500 PWM support"
369	depends on ARCH_VT8500
370	help
371	  Generic PWM framework driver for vt8500.
372
373	  To compile this driver as a module, choose M here: the module
374	  will be called pwm-vt8500.
375
376endif
377