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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"
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
Boris BREZILLON9421bade2013-01-08 16:36:42 +010053config PWM_ATMEL_TCB
Thierry Redingb133d2a2013-01-30 09:19:55 +010054 tristate "Atmel TC Block PWM support"
Boris BREZILLON9421bade2013-01-08 16:36:42 +010055 depends on ATMEL_TCLIB && OF
56 help
57 Generic PWM framework driver for Atmel Timer Counter Block.
58
59 A Timer Counter Block provides 6 PWM devices grouped by 2.
60 Devices in a given group must have the same period.
61
62 To compile this driver as a module, choose M here: the module
63 will be called pwm-atmel-tcb.
64
Thierry Redinga4315e32012-01-02 20:53:50 +010065config PWM_BFIN
66 tristate "Blackfin PWM support"
67 depends on BFIN_GPTIMERS
68 help
69 Generic PWM framework driver for Blackfin.
70
71 To compile this driver as a module, choose M here: the module
72 will be called pwm-bfin.
73
Alexander Shiyan7eb3f6f2014-03-12 19:53:05 +040074config PWM_CLPS711X
75 tristate "CLPS711X PWM support"
76 depends on ARCH_CLPS711X || COMPILE_TEST
77 help
78 Generic PWM framework driver for Cirrus Logic CLPS711X.
79
80 To compile this driver as a module, choose M here: the module
81 will be called pwm-clps711x.
82
H Hartley Sweetena2308692013-10-15 18:40:03 -070083config PWM_EP93XX
84 tristate "Cirrus Logic EP93xx PWM support"
85 depends on ARCH_EP93XX
86 help
87 Generic PWM framework driver for Cirrus Logic EP93xx.
88
89 To compile this driver as a module, choose M here: the module
90 will be called pwm-ep93xx.
91
Xiubo Lib5051832014-02-27 17:39:49 +080092config PWM_FSL_FTM
93 tristate "Freescale FlexTimer Module (FTM) PWM support"
94 depends on OF
95 help
96 Generic FTM PWM framework driver for Freescale VF610 and
97 Layerscape LS-1 SoCs.
98
99 To compile this driver as a module, choose M here: the module
100 will be called pwm-fsl-ftm.
101
Sascha Hauer29693242012-03-15 10:04:35 +0100102config PWM_IMX
Thierry Redingb133d2a2013-01-30 09:19:55 +0100103 tristate "i.MX PWM support"
Sascha Hauer29693242012-03-15 10:04:35 +0100104 depends on ARCH_MXC
105 help
106 Generic PWM framework driver for i.MX.
107
108 To compile this driver as a module, choose M here: the module
109 will be called pwm-imx.
110
Thierry Redingf6b8a572012-08-22 10:01:24 +0200111config PWM_JZ4740
112 tristate "Ingenic JZ4740 PWM support"
113 depends on MACH_JZ4740
114 help
115 Generic PWM framework driver for Ingenic JZ4740 based
116 machines.
117
118 To compile this driver as a module, choose M here: the module
119 will be called pwm-jz4740.
120
Milo Kimaf66b3c2013-12-06 11:18:43 +0900121config PWM_LP3943
122 tristate "TI/National Semiconductor LP3943 PWM support"
123 depends on MFD_LP3943
124 help
125 Generic PWM framework driver for LP3943 which supports two PWM
126 channels.
127
128 To compile this driver as a module, choose M here: the module
129 will be called pwm-lp3943.
130
Alexandre Pereira da Silva2132fa82012-07-10 11:38:10 -0300131config PWM_LPC32XX
132 tristate "LPC32XX PWM support"
133 depends on ARCH_LPC32XX
134 help
135 Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
136 PWM controllers.
137
138 To compile this driver as a module, choose M here: the module
139 will be called pwm-lpc32xx.
140
Shawn Guo4dce82c2012-04-04 10:50:52 +0800141config PWM_MXS
142 tristate "Freescale MXS PWM support"
143 depends on ARCH_MXS && OF
Shawn Guo01bf32e2012-06-26 16:58:09 +0800144 select STMP_DEVICE
Shawn Guo4dce82c2012-04-04 10:50:52 +0800145 help
146 Generic PWM framework driver for Freescale MXS.
147
148 To compile this driver as a module, choose M here: the module
149 will be called pwm-mxs.
150
Steffen Trumtrar88b613e2013-05-30 09:50:12 +0200151config PWM_PCA9685
152 tristate "NXP PCA9685 PWM driver"
Axel Lin2c80a492013-12-17 11:51:29 +0800153 depends on OF && I2C
154 select REGMAP_I2C
Steffen Trumtrar88b613e2013-05-30 09:50:12 +0200155 help
156 Generic PWM framework driver for NXP PCA9685 LED controller.
157
158 To compile this driver as a module, choose M here: the module
159 will be called pwm-pca9685.
160
Thierry Reding79c11b62012-08-31 08:29:24 +0200161config PWM_PUV3
162 tristate "PKUnity NetBook-0916 PWM support"
163 depends on ARCH_PUV3
164 help
165 Generic PWM framework driver for PKUnity NetBook-0916.
166
167 To compile this driver as a module, choose M here: the module
168 will be called pwm-puv3.
169
Thierry Reding17b2b472012-01-02 21:22:38 +0100170config PWM_PXA
171 tristate "PXA PWM support"
172 depends on ARCH_PXA
173 help
174 Generic PWM framework driver for PXA.
175
176 To compile this driver as a module, choose M here: the module
177 will be called pwm-pxa.
178
Laurent Pinchart99b82ab2013-06-13 18:54:44 +0200179config PWM_RENESAS_TPU
180 tristate "Renesas TPU PWM support"
Laurent Pinchart94d88d62013-11-27 02:18:33 +0100181 depends on ARCH_SHMOBILE || COMPILE_TEST
Richard Weinberger2974b092014-01-31 13:45:18 +0100182 depends on HAS_IOMEM
Laurent Pinchart99b82ab2013-06-13 18:54:44 +0200183 help
184 This driver exposes the Timer Pulse Unit (TPU) PWM controller found
185 in Renesas chips through the PWM API.
186
187 To compile this driver as a module, choose M here: the module
188 will be called pwm-renesas-tpu.
189
Sascha Hauer215c29d2012-03-15 10:04:36 +0100190config PWM_SAMSUNG
Thierry Redingb133d2a2013-01-30 09:19:55 +0100191 tristate "Samsung PWM support"
Sascha Hauer215c29d2012-03-15 10:04:36 +0100192 depends on PLAT_SAMSUNG
193 help
194 Generic PWM framework driver for Samsung.
195
196 To compile this driver as a module, choose M here: the module
197 will be called pwm-samsung.
198
Shiraz Hashimce203642012-10-25 09:39:13 +0530199config PWM_SPEAR
200 tristate "STMicroelectronics SPEAr PWM support"
201 depends on PLAT_SPEAR
202 depends on OF
203 help
204 Generic PWM framework driver for the PWM controller on ST
205 SPEAr SoCs.
206
207 To compile this driver as a module, choose M here: the module
208 will be called pwm-spear.
209
Thierry Reding0134b932011-12-21 07:47:07 +0100210config PWM_TEGRA
211 tristate "NVIDIA Tegra PWM support"
212 depends on ARCH_TEGRA
213 help
214 Generic PWM framework driver for the PWFM controller found on NVIDIA
215 Tegra SoCs.
216
217 To compile this driver as a module, choose M here: the module
218 will be called pwm-tegra.
219
Philip, Avinash8e0cb052012-07-25 16:58:18 +0530220config PWM_TIECAP
221 tristate "ECAP PWM support"
Philip Avinash1bf0f202013-03-20 12:09:24 +0530222 depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
Philip, Avinash8e0cb052012-07-25 16:58:18 +0530223 help
224 PWM driver support for the ECAP APWM controller found on AM33XX
225 TI SOC
226
227 To compile this driver as a module, choose M here: the module
228 will be called pwm-tiecap.
229
Philip, Avinash19891b22012-07-25 16:58:19 +0530230config PWM_TIEHRPWM
231 tristate "EHRPWM PWM support"
Philip Avinash1bf0f202013-03-20 12:09:24 +0530232 depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
Philip, Avinash19891b22012-07-25 16:58:19 +0530233 help
234 PWM driver support for the EHRPWM controller found on AM33XX
235 TI SOC
236
237 To compile this driver as a module, choose M here: the module
238 will be called pwm-tiehrpwm.
239
Philip, Avinashaf0ba002012-11-27 14:18:06 +0530240config PWM_TIPWMSS
241 bool
Philip Avinash1bf0f202013-03-20 12:09:24 +0530242 default y if SOC_AM33XX && (PWM_TIECAP || PWM_TIEHRPWM)
Philip, Avinashaf0ba002012-11-27 14:18:06 +0530243 help
244 PWM Subsystem driver support for AM33xx SOC.
245
246 PWM submodules require PWM config space access from submodule
247 drivers and require common parent driver support.
248
Peter Ujfalusi3744c262012-11-27 11:09:57 +0100249config PWM_TWL
250 tristate "TWL4030/6030 PWM support"
251 depends on TWL4030_CORE
252 help
253 Generic PWM framework driver for TWL4030/6030.
254
255 To compile this driver as a module, choose M here: the module
256 will be called pwm-twl.
257
Peter Ujfalusiaa765642012-11-27 11:09:58 +0100258config PWM_TWL_LED
259 tristate "TWL4030/6030 PWM support for LED drivers"
260 depends on TWL4030_CORE
261 help
262 Generic PWM framework driver for TWL4030/6030 LED terminals.
263
264 To compile this driver as a module, choose M here: the module
265 will be called pwm-twl-led.
266
Sascha Hauera245cce2012-03-15 10:04:37 +0100267config PWM_VT8500
Thierry Redingb133d2a2013-01-30 09:19:55 +0100268 tristate "vt8500 PWM support"
Sascha Hauera245cce2012-03-15 10:04:37 +0100269 depends on ARCH_VT8500
270 help
271 Generic PWM framework driver for vt8500.
272
273 To compile this driver as a module, choose M here: the module
274 will be called pwm-vt8500.
275
Sascha Hauer0c2498f2011-01-28 09:40:40 +0100276endif