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.
36 tristate "AB8500 PWM support"
37 depends on AB8500_CORE && ARCH_U8500
39 Generic PWM framework driver for Analog Baseband AB8500.
41 To compile this driver as a module, choose M here: the module
42 will be called pwm-ab8500.
45 tristate "Atmel PWM support"
48 Generic PWM framework driver for Atmel SoC.
50 To compile this driver as a module, choose M here: the module
51 will be called pwm-atmel.
54 tristate "Atmel TC Block PWM support"
55 depends on ATMEL_TCLIB && OF
57 Generic PWM framework driver for Atmel Timer Counter Block.
59 A Timer Counter Block provides 6 PWM devices grouped by 2.
60 Devices in a given group must have the same period.
62 To compile this driver as a module, choose M here: the module
63 will be called pwm-atmel-tcb.
66 tristate "Blackfin PWM support"
67 depends on BFIN_GPTIMERS
69 Generic PWM framework driver for Blackfin.
71 To compile this driver as a module, choose M here: the module
72 will be called pwm-bfin.
75 tristate "Cirrus Logic EP93xx PWM support"
76 depends on ARCH_EP93XX
78 Generic PWM framework driver for Cirrus Logic EP93xx.
80 To compile this driver as a module, choose M here: the module
81 will be called pwm-ep93xx.
84 tristate "i.MX PWM support"
87 Generic PWM framework driver for i.MX.
89 To compile this driver as a module, choose M here: the module
90 will be called pwm-imx.
93 tristate "Ingenic JZ4740 PWM support"
94 depends on MACH_JZ4740
96 Generic PWM framework driver for Ingenic JZ4740 based
99 To compile this driver as a module, choose M here: the module
100 will be called pwm-jz4740.
103 tristate "TI/National Semiconductor LP3943 PWM support"
104 depends on MFD_LP3943
106 Generic PWM framework driver for LP3943 which supports two PWM
109 To compile this driver as a module, choose M here: the module
110 will be called pwm-lp3943.
113 tristate "LPC32XX PWM support"
114 depends on ARCH_LPC32XX
116 Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
119 To compile this driver as a module, choose M here: the module
120 will be called pwm-lpc32xx.
123 tristate "Intel LPSS PWM support"
125 Generic PWM framework driver for Intel Low Power Subsystem PWM
128 To compile this driver as a module, choose M here: the module
129 will be called pwm-lpss.
132 tristate "Intel LPSS PWM PCI driver"
133 depends on PWM_LPSS && PCI
135 The PCI driver for Intel Low Power Subsystem PWM controller.
137 To compile this driver as a module, choose M here: the module
138 will be called pwm-lpss-pci.
140 config PWM_LPSS_PLATFORM
141 tristate "Intel LPSS PWM platform driver"
142 depends on PWM_LPSS && ACPI
144 The platform driver for Intel Low Power Subsystem PWM controller.
146 To compile this driver as a module, choose M here: the module
147 will be called pwm-lpss-platform.
150 tristate "Freescale MXS PWM support"
151 depends on ARCH_MXS && OF
154 Generic PWM framework driver for Freescale MXS.
156 To compile this driver as a module, choose M here: the module
157 will be called pwm-mxs.
160 tristate "NXP PCA9685 PWM driver"
164 Generic PWM framework driver for NXP PCA9685 LED controller.
166 To compile this driver as a module, choose M here: the module
167 will be called pwm-pca9685.
170 tristate "PKUnity NetBook-0916 PWM support"
173 Generic PWM framework driver for PKUnity NetBook-0916.
175 To compile this driver as a module, choose M here: the module
176 will be called pwm-puv3.
179 tristate "PXA PWM support"
182 Generic PWM framework driver for PXA.
184 To compile this driver as a module, choose M here: the module
185 will be called pwm-pxa.
187 config PWM_RENESAS_TPU
188 tristate "Renesas TPU PWM support"
189 depends on ARCH_SHMOBILE || COMPILE_TEST
191 This driver exposes the Timer Pulse Unit (TPU) PWM controller found
192 in Renesas chips through the PWM API.
194 To compile this driver as a module, choose M here: the module
195 will be called pwm-renesas-tpu.
198 tristate "Samsung PWM support"
199 depends on PLAT_SAMSUNG
201 Generic PWM framework driver for Samsung.
203 To compile this driver as a module, choose M here: the module
204 will be called pwm-samsung.
207 tristate "STMicroelectronics SPEAr PWM support"
208 depends on PLAT_SPEAR
211 Generic PWM framework driver for the PWM controller on ST
214 To compile this driver as a module, choose M here: the module
215 will be called pwm-spear.
218 tristate "NVIDIA Tegra PWM support"
219 depends on ARCH_TEGRA
221 Generic PWM framework driver for the PWFM controller found on NVIDIA
224 To compile this driver as a module, choose M here: the module
225 will be called pwm-tegra.
228 tristate "ECAP PWM support"
229 depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
231 PWM driver support for the ECAP APWM controller found on AM33XX
234 To compile this driver as a module, choose M here: the module
235 will be called pwm-tiecap.
238 tristate "EHRPWM PWM support"
239 depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
241 PWM driver support for the EHRPWM controller found on AM33XX
244 To compile this driver as a module, choose M here: the module
245 will be called pwm-tiehrpwm.
249 default y if SOC_AM33XX && (PWM_TIECAP || PWM_TIEHRPWM)
251 PWM Subsystem driver support for AM33xx SOC.
253 PWM submodules require PWM config space access from submodule
254 drivers and require common parent driver support.
257 tristate "TWL4030/6030 PWM support"
258 depends on TWL4030_CORE
260 Generic PWM framework driver for TWL4030/6030.
262 To compile this driver as a module, choose M here: the module
263 will be called pwm-twl.
266 tristate "TWL4030/6030 PWM support for LED drivers"
267 depends on TWL4030_CORE
269 Generic PWM framework driver for TWL4030/6030 LED terminals.
271 To compile this driver as a module, choose M here: the module
272 will be called pwm-twl-led.
275 tristate "vt8500 PWM support"
276 depends on ARCH_VT8500
278 Generic PWM framework driver for vt8500.
280 To compile this driver as a module, choose M here: the module
281 will be called pwm-vt8500.