Merge tag 'v3.10.58' into update
[GitHub/mt8127/android_kernel_alcatel_ttab.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_AB8500
32 tristate "AB8500 PWM support"
33 depends on AB8500_CORE && ARCH_U8500
34 help
35 Generic PWM framework driver for Analog Baseband AB8500.
36
37 To compile this driver as a module, choose M here: the module
38 will be called pwm-ab8500.
39
9421bade 40config PWM_ATMEL_TCB
b133d2a1 41 tristate "Atmel TC Block PWM support"
9421bade
BB
42 depends on ATMEL_TCLIB && OF
43 help
44 Generic PWM framework driver for Atmel Timer Counter Block.
45
46 A Timer Counter Block provides 6 PWM devices grouped by 2.
47 Devices in a given group must have the same period.
48
49 To compile this driver as a module, choose M here: the module
50 will be called pwm-atmel-tcb.
51
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52config PWM_BFIN
53 tristate "Blackfin PWM support"
54 depends on BFIN_GPTIMERS
55 help
56 Generic PWM framework driver for Blackfin.
57
58 To compile this driver as a module, choose M here: the module
59 will be called pwm-bfin.
60
29693248 61config PWM_IMX
b133d2a1 62 tristate "i.MX PWM support"
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63 depends on ARCH_MXC
64 help
65 Generic PWM framework driver for i.MX.
66
67 To compile this driver as a module, choose M here: the module
68 will be called pwm-imx.
69
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70config PWM_JZ4740
71 tristate "Ingenic JZ4740 PWM support"
72 depends on MACH_JZ4740
73 help
74 Generic PWM framework driver for Ingenic JZ4740 based
75 machines.
76
77 To compile this driver as a module, choose M here: the module
78 will be called pwm-jz4740.
79
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80config PWM_LPC32XX
81 tristate "LPC32XX PWM support"
82 depends on ARCH_LPC32XX
83 help
84 Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
85 PWM controllers.
86
87 To compile this driver as a module, choose M here: the module
88 will be called pwm-lpc32xx.
89
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90config PWM_MXS
91 tristate "Freescale MXS PWM support"
92 depends on ARCH_MXS && OF
01bf32e9 93 select STMP_DEVICE
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94 help
95 Generic PWM framework driver for Freescale MXS.
96
97 To compile this driver as a module, choose M here: the module
98 will be called pwm-mxs.
99
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100config PWM_PUV3
101 tristate "PKUnity NetBook-0916 PWM support"
102 depends on ARCH_PUV3
103 help
104 Generic PWM framework driver for PKUnity NetBook-0916.
105
106 To compile this driver as a module, choose M here: the module
107 will be called pwm-puv3.
108
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109config PWM_PXA
110 tristate "PXA PWM support"
111 depends on ARCH_PXA
112 help
113 Generic PWM framework driver for PXA.
114
115 To compile this driver as a module, choose M here: the module
116 will be called pwm-pxa.
117
215c29d3 118config PWM_SAMSUNG
b133d2a1 119 tristate "Samsung PWM support"
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120 depends on PLAT_SAMSUNG
121 help
122 Generic PWM framework driver for Samsung.
123
124 To compile this driver as a module, choose M here: the module
125 will be called pwm-samsung.
126
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127config PWM_SPEAR
128 tristate "STMicroelectronics SPEAr PWM support"
129 depends on PLAT_SPEAR
130 depends on OF
131 help
132 Generic PWM framework driver for the PWM controller on ST
133 SPEAr SoCs.
134
135 To compile this driver as a module, choose M here: the module
136 will be called pwm-spear.
137
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138config PWM_TEGRA
139 tristate "NVIDIA Tegra PWM support"
140 depends on ARCH_TEGRA
141 help
142 Generic PWM framework driver for the PWFM controller found on NVIDIA
143 Tegra SoCs.
144
145 To compile this driver as a module, choose M here: the module
146 will be called pwm-tegra.
147
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148config PWM_TIECAP
149 tristate "ECAP PWM support"
1bf0f20b 150 depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
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151 help
152 PWM driver support for the ECAP APWM controller found on AM33XX
153 TI SOC
154
155 To compile this driver as a module, choose M here: the module
156 will be called pwm-tiecap.
157
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158config PWM_TIEHRPWM
159 tristate "EHRPWM PWM support"
1bf0f20b 160 depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
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161 help
162 PWM driver support for the EHRPWM controller found on AM33XX
163 TI SOC
164
165 To compile this driver as a module, choose M here: the module
166 will be called pwm-tiehrpwm.
167
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168config PWM_TIPWMSS
169 bool
1bf0f20b 170 default y if SOC_AM33XX && (PWM_TIECAP || PWM_TIEHRPWM)
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171 help
172 PWM Subsystem driver support for AM33xx SOC.
173
174 PWM submodules require PWM config space access from submodule
175 drivers and require common parent driver support.
176
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177config PWM_TWL
178 tristate "TWL4030/6030 PWM support"
179 depends on TWL4030_CORE
180 help
181 Generic PWM framework driver for TWL4030/6030.
182
183 To compile this driver as a module, choose M here: the module
184 will be called pwm-twl.
185
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186config PWM_TWL_LED
187 tristate "TWL4030/6030 PWM support for LED drivers"
188 depends on TWL4030_CORE
189 help
190 Generic PWM framework driver for TWL4030/6030 LED terminals.
191
192 To compile this driver as a module, choose M here: the module
193 will be called pwm-twl-led.
194
a245cceb 195config PWM_VT8500
b133d2a1 196 tristate "vt8500 PWM support"
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197 depends on ARCH_VT8500
198 help
199 Generic PWM framework driver for vt8500.
200
201 To compile this driver as a module, choose M here: the module
202 will be called pwm-vt8500.
203
0c2498f1 204endif