ASoC: rsnd: move priv member settings to upper side
[deliverable/linux.git] / drivers / pwm / Kconfig
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0c2498f1 1menuconfig PWM
b817bf5c 2 bool "Pulse-Width Modulation (PWM) Support"
0c2498f1 3 help
b817bf5c 4 Generic Pulse-Width Modulation (PWM) support.
0c2498f1 5
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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.
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28
29if PWM
30
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31config PWM_SYSFS
32 bool
33 default y if SYSFS
34
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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
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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
9421bade 53config PWM_ATMEL_TCB
b133d2a1 54 tristate "Atmel TC Block PWM support"
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55 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
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65config 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
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74config PWM_EP93XX
75 tristate "Cirrus Logic EP93xx PWM support"
76 depends on ARCH_EP93XX
77 help
78 Generic PWM framework driver for Cirrus Logic EP93xx.
79
80 To compile this driver as a module, choose M here: the module
81 will be called pwm-ep93xx.
82
29693248 83config PWM_IMX
b133d2a1 84 tristate "i.MX PWM support"
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85 depends on ARCH_MXC
86 help
87 Generic PWM framework driver for i.MX.
88
89 To compile this driver as a module, choose M here: the module
90 will be called pwm-imx.
91
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92config PWM_JZ4740
93 tristate "Ingenic JZ4740 PWM support"
94 depends on MACH_JZ4740
95 help
96 Generic PWM framework driver for Ingenic JZ4740 based
97 machines.
98
99 To compile this driver as a module, choose M here: the module
100 will be called pwm-jz4740.
101
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102config PWM_LP3943
103 tristate "TI/National Semiconductor LP3943 PWM support"
104 depends on MFD_LP3943
105 help
106 Generic PWM framework driver for LP3943 which supports two PWM
107 channels.
108
109 To compile this driver as a module, choose M here: the module
110 will be called pwm-lp3943.
111
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112config PWM_LPC32XX
113 tristate "LPC32XX PWM support"
114 depends on ARCH_LPC32XX
115 help
116 Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
117 PWM controllers.
118
119 To compile this driver as a module, choose M here: the module
120 will be called pwm-lpc32xx.
121
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122config PWM_MXS
123 tristate "Freescale MXS PWM support"
124 depends on ARCH_MXS && OF
01bf32e9 125 select STMP_DEVICE
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126 help
127 Generic PWM framework driver for Freescale MXS.
128
129 To compile this driver as a module, choose M here: the module
130 will be called pwm-mxs.
131
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132config PWM_PCA9685
133 tristate "NXP PCA9685 PWM driver"
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134 depends on OF && I2C
135 select REGMAP_I2C
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136 help
137 Generic PWM framework driver for NXP PCA9685 LED controller.
138
139 To compile this driver as a module, choose M here: the module
140 will be called pwm-pca9685.
141
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142config PWM_PUV3
143 tristate "PKUnity NetBook-0916 PWM support"
144 depends on ARCH_PUV3
145 help
146 Generic PWM framework driver for PKUnity NetBook-0916.
147
148 To compile this driver as a module, choose M here: the module
149 will be called pwm-puv3.
150
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151config PWM_PXA
152 tristate "PXA PWM support"
153 depends on ARCH_PXA
154 help
155 Generic PWM framework driver for PXA.
156
157 To compile this driver as a module, choose M here: the module
158 will be called pwm-pxa.
159
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160config PWM_RENESAS_TPU
161 tristate "Renesas TPU PWM support"
94d88d63 162 depends on ARCH_SHMOBILE || COMPILE_TEST
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163 help
164 This driver exposes the Timer Pulse Unit (TPU) PWM controller found
165 in Renesas chips through the PWM API.
166
167 To compile this driver as a module, choose M here: the module
168 will be called pwm-renesas-tpu.
169
215c29d3 170config PWM_SAMSUNG
b133d2a1 171 tristate "Samsung PWM support"
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172 depends on PLAT_SAMSUNG
173 help
174 Generic PWM framework driver for Samsung.
175
176 To compile this driver as a module, choose M here: the module
177 will be called pwm-samsung.
178
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179config PWM_SPEAR
180 tristate "STMicroelectronics SPEAr PWM support"
181 depends on PLAT_SPEAR
182 depends on OF
183 help
184 Generic PWM framework driver for the PWM controller on ST
185 SPEAr SoCs.
186
187 To compile this driver as a module, choose M here: the module
188 will be called pwm-spear.
189
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190config PWM_TEGRA
191 tristate "NVIDIA Tegra PWM support"
192 depends on ARCH_TEGRA
193 help
194 Generic PWM framework driver for the PWFM controller found on NVIDIA
195 Tegra SoCs.
196
197 To compile this driver as a module, choose M here: the module
198 will be called pwm-tegra.
199
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200config PWM_TIECAP
201 tristate "ECAP PWM support"
1bf0f20b 202 depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
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203 help
204 PWM driver support for the ECAP APWM controller found on AM33XX
205 TI SOC
206
207 To compile this driver as a module, choose M here: the module
208 will be called pwm-tiecap.
209
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210config PWM_TIEHRPWM
211 tristate "EHRPWM PWM support"
1bf0f20b 212 depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
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213 help
214 PWM driver support for the EHRPWM controller found on AM33XX
215 TI SOC
216
217 To compile this driver as a module, choose M here: the module
218 will be called pwm-tiehrpwm.
219
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220config PWM_TIPWMSS
221 bool
1bf0f20b 222 default y if SOC_AM33XX && (PWM_TIECAP || PWM_TIEHRPWM)
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223 help
224 PWM Subsystem driver support for AM33xx SOC.
225
226 PWM submodules require PWM config space access from submodule
227 drivers and require common parent driver support.
228
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229config PWM_TWL
230 tristate "TWL4030/6030 PWM support"
231 depends on TWL4030_CORE
232 help
233 Generic PWM framework driver for TWL4030/6030.
234
235 To compile this driver as a module, choose M here: the module
236 will be called pwm-twl.
237
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238config PWM_TWL_LED
239 tristate "TWL4030/6030 PWM support for LED drivers"
240 depends on TWL4030_CORE
241 help
242 Generic PWM framework driver for TWL4030/6030 LED terminals.
243
244 To compile this driver as a module, choose M here: the module
245 will be called pwm-twl-led.
246
a245cceb 247config PWM_VT8500
b133d2a1 248 tristate "vt8500 PWM support"
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249 depends on ARCH_VT8500
250 help
251 Generic PWM framework driver for vt8500.
252
253 To compile this driver as a module, choose M here: the module
254 will be called pwm-vt8500.
255
0c2498f1 256endif
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