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 "NVIDIA Tegra PWM support"
117 depends on ARCH_TEGRA
119 Generic PWM framework driver for the PWFM controller found on NVIDIA
122 To compile this driver as a module, choose M here: the module
123 will be called pwm-tegra.
126 tristate "ECAP PWM support"
127 depends on SOC_AM33XX
129 PWM driver support for the ECAP APWM controller found on AM33XX
132 To compile this driver as a module, choose M here: the module
133 will be called pwm-tiecap.
136 tristate "EHRPWM PWM support"
137 depends on SOC_AM33XX
139 PWM driver support for the EHRPWM controller found on AM33XX
142 To compile this driver as a module, choose M here: the module
143 will be called pwm-tiehrpwm.
146 tristate "TWL6030 PWM support"
147 depends on TWL4030_CORE
149 Generic PWM framework driver for TWL6030.
151 To compile this driver as a module, choose M here: the module
152 will be called pwm-twl6030.
155 tristate "vt8500 pwm support"
156 depends on ARCH_VT8500
158 Generic PWM framework driver for vt8500.
160 To compile this driver as a module, choose M here: the module
161 will be called pwm-vt8500.