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 "Atmel TC Block PWM support"
42 depends on ATMEL_TCLIB && OF
44 Generic PWM framework driver for Atmel Timer Counter Block.
46 A Timer Counter Block provides 6 PWM devices grouped by 2.
47 Devices in a given group must have the same period.
49 To compile this driver as a module, choose M here: the module
50 will be called pwm-atmel-tcb.
53 tristate "Blackfin PWM support"
54 depends on BFIN_GPTIMERS
56 Generic PWM framework driver for Blackfin.
58 To compile this driver as a module, choose M here: the module
59 will be called pwm-bfin.
62 tristate "i.MX PWM support"
65 Generic PWM framework driver for i.MX.
67 To compile this driver as a module, choose M here: the module
68 will be called pwm-imx.
71 tristate "Ingenic JZ4740 PWM support"
72 depends on MACH_JZ4740
74 Generic PWM framework driver for Ingenic JZ4740 based
77 To compile this driver as a module, choose M here: the module
78 will be called pwm-jz4740.
81 tristate "LPC32XX PWM support"
82 depends on ARCH_LPC32XX
84 Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
87 To compile this driver as a module, choose M here: the module
88 will be called pwm-lpc32xx.
91 tristate "Freescale MXS PWM support"
92 depends on ARCH_MXS && OF
95 Generic PWM framework driver for Freescale MXS.
97 To compile this driver as a module, choose M here: the module
98 will be called pwm-mxs.
101 tristate "NXP PCA9685 PWM driver"
102 depends on OF && REGMAP_I2C
104 Generic PWM framework driver for NXP PCA9685 LED controller.
106 To compile this driver as a module, choose M here: the module
107 will be called pwm-pca9685.
110 tristate "PKUnity NetBook-0916 PWM support"
113 Generic PWM framework driver for PKUnity NetBook-0916.
115 To compile this driver as a module, choose M here: the module
116 will be called pwm-puv3.
119 tristate "PXA PWM support"
122 Generic PWM framework driver for PXA.
124 To compile this driver as a module, choose M here: the module
125 will be called pwm-pxa.
128 tristate "Samsung PWM support"
129 depends on PLAT_SAMSUNG
131 Generic PWM framework driver for Samsung.
133 To compile this driver as a module, choose M here: the module
134 will be called pwm-samsung.
137 tristate "STMicroelectronics SPEAr PWM support"
138 depends on PLAT_SPEAR
141 Generic PWM framework driver for the PWM controller on ST
144 To compile this driver as a module, choose M here: the module
145 will be called pwm-spear.
148 tristate "NVIDIA Tegra PWM support"
149 depends on ARCH_TEGRA
151 Generic PWM framework driver for the PWFM controller found on NVIDIA
154 To compile this driver as a module, choose M here: the module
155 will be called pwm-tegra.
158 tristate "ECAP PWM support"
159 depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
161 PWM driver support for the ECAP APWM controller found on AM33XX
164 To compile this driver as a module, choose M here: the module
165 will be called pwm-tiecap.
168 tristate "EHRPWM PWM support"
169 depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
171 PWM driver support for the EHRPWM controller found on AM33XX
174 To compile this driver as a module, choose M here: the module
175 will be called pwm-tiehrpwm.
179 default y if SOC_AM33XX && (PWM_TIECAP || PWM_TIEHRPWM)
181 PWM Subsystem driver support for AM33xx SOC.
183 PWM submodules require PWM config space access from submodule
184 drivers and require common parent driver support.
187 tristate "TWL4030/6030 PWM support"
188 depends on TWL4030_CORE
190 Generic PWM framework driver for TWL4030/6030.
192 To compile this driver as a module, choose M here: the module
193 will be called pwm-twl.
196 tristate "TWL4030/6030 PWM support for LED drivers"
197 depends on TWL4030_CORE
199 Generic PWM framework driver for TWL4030/6030 LED terminals.
201 To compile this driver as a module, choose M here: the module
202 will be called pwm-twl-led.
205 tristate "vt8500 PWM support"
206 depends on ARCH_VT8500
208 Generic PWM framework driver for vt8500.
210 To compile this driver as a module, choose M here: the module
211 will be called pwm-vt8500.