2 bool "Pulse-Width Modulation (PWM) Support"
4 Generic Pulse-Width Modulation (PWM) support.
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
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.
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.
32 tristate "AB8500 PWM support"
33 depends on AB8500_CORE && ARCH_U8500
35 Generic PWM framework driver for Analog Baseband AB8500.
37 To compile this driver as a module, choose M here: the module
38 will be called pwm-ab8500.
41 tristate "Blackfin PWM support"
42 depends on BFIN_GPTIMERS
44 Generic PWM framework driver for Blackfin.
46 To compile this driver as a module, choose M here: the module
47 will be called pwm-bfin.
50 tristate "i.MX pwm support"
53 Generic PWM framework driver for i.MX.
55 To compile this driver as a module, choose M here: the module
56 will be called pwm-imx.
59 tristate "Ingenic JZ4740 PWM support"
60 depends on MACH_JZ4740
62 Generic PWM framework driver for Ingenic JZ4740 based
65 To compile this driver as a module, choose M here: the module
66 will be called pwm-jz4740.
69 tristate "LPC32XX PWM support"
70 depends on ARCH_LPC32XX
72 Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
75 To compile this driver as a module, choose M here: the module
76 will be called pwm-lpc32xx.
79 tristate "Freescale MXS PWM support"
80 depends on ARCH_MXS && OF
83 Generic PWM framework driver for Freescale MXS.
85 To compile this driver as a module, choose M here: the module
86 will be called pwm-mxs.
89 tristate "PKUnity NetBook-0916 PWM support"
92 Generic PWM framework driver for PKUnity NetBook-0916.
94 To compile this driver as a module, choose M here: the module
95 will be called pwm-puv3.
98 tristate "PXA PWM support"
101 Generic PWM framework driver for PXA.
103 To compile this driver as a module, choose M here: the module
104 will be called pwm-pxa.
107 tristate "Samsung pwm support"
108 depends on PLAT_SAMSUNG
110 Generic PWM framework driver for Samsung.
112 To compile this driver as a module, choose M here: the module
113 will be called pwm-samsung.
116 tristate "STMicroelectronics SPEAr PWM support"
117 depends on PLAT_SPEAR
120 Generic PWM framework driver for the PWM controller on ST
123 To compile this driver as a module, choose M here: the module
124 will be called pwm-spear.
127 tristate "NVIDIA Tegra PWM support"
128 depends on ARCH_TEGRA
130 Generic PWM framework driver for the PWFM controller found on NVIDIA
133 To compile this driver as a module, choose M here: the module
134 will be called pwm-tegra.
137 tristate "ECAP PWM support"
138 depends on SOC_AM33XX
141 PWM driver support for the ECAP APWM controller found on AM33XX
144 To compile this driver as a module, choose M here: the module
145 will be called pwm-tiecap.
148 tristate "EHRPWM PWM support"
149 depends on SOC_AM33XX
152 PWM driver support for the EHRPWM controller found on AM33XX
155 To compile this driver as a module, choose M here: the module
156 will be called pwm-tiehrpwm.
160 depends on SOC_AM33XX && (PWM_TIEHRPWM || PWM_TIECAP)
162 PWM Subsystem driver support for AM33xx SOC.
164 PWM submodules require PWM config space access from submodule
165 drivers and require common parent driver support.
168 tristate "TWL4030/6030 PWM support"
169 depends on TWL4030_CORE
171 Generic PWM framework driver for TWL4030/6030.
173 To compile this driver as a module, choose M here: the module
174 will be called pwm-twl.
177 tristate "TWL4030/6030 PWM support for LED drivers"
178 depends on TWL4030_CORE
180 Generic PWM framework driver for TWL4030/6030 LED terminals.
182 To compile this driver as a module, choose M here: the module
183 will be called pwm-twl-led.
186 tristate "vt8500 pwm support"
187 depends on ARCH_VT8500
189 Generic PWM framework driver for vt8500.
191 To compile this driver as a module, choose M here: the module
192 will be called pwm-vt8500.