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 "CLPS711X PWM support"
76 depends on ARCH_CLPS711X || COMPILE_TEST
78 Generic PWM framework driver for Cirrus Logic CLPS711X.
80 To compile this driver as a module, choose M here: the module
81 will be called pwm-clps711x.
84 tristate "Cirrus Logic EP93xx PWM support"
85 depends on ARCH_EP93XX
87 Generic PWM framework driver for Cirrus Logic EP93xx.
89 To compile this driver as a module, choose M here: the module
90 will be called pwm-ep93xx.
93 tristate "Freescale FlexTimer Module (FTM) PWM support"
96 Generic FTM PWM framework driver for Freescale VF610 and
99 To compile this driver as a module, choose M here: the module
100 will be called pwm-fsl-ftm.
103 tristate "i.MX PWM support"
106 Generic PWM framework driver for i.MX.
108 To compile this driver as a module, choose M here: the module
109 will be called pwm-imx.
112 tristate "Ingenic JZ4740 PWM support"
113 depends on MACH_JZ4740
115 Generic PWM framework driver for Ingenic JZ4740 based
118 To compile this driver as a module, choose M here: the module
119 will be called pwm-jz4740.
122 tristate "TI/National Semiconductor LP3943 PWM support"
123 depends on MFD_LP3943
125 Generic PWM framework driver for LP3943 which supports two PWM
128 To compile this driver as a module, choose M here: the module
129 will be called pwm-lp3943.
132 tristate "LPC32XX PWM support"
133 depends on ARCH_LPC32XX
135 Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
138 To compile this driver as a module, choose M here: the module
139 will be called pwm-lpc32xx.
142 tristate "Intel LPSS PWM support"
145 Generic PWM framework driver for Intel Low Power Subsystem PWM
148 To compile this driver as a module, choose M here: the module
149 will be called pwm-lpss.
152 tristate "Freescale MXS PWM support"
153 depends on ARCH_MXS && OF
156 Generic PWM framework driver for Freescale MXS.
158 To compile this driver as a module, choose M here: the module
159 will be called pwm-mxs.
162 tristate "NXP PCA9685 PWM driver"
166 Generic PWM framework driver for NXP PCA9685 LED controller.
168 To compile this driver as a module, choose M here: the module
169 will be called pwm-pca9685.
172 tristate "PKUnity NetBook-0916 PWM support"
175 Generic PWM framework driver for PKUnity NetBook-0916.
177 To compile this driver as a module, choose M here: the module
178 will be called pwm-puv3.
181 tristate "PXA PWM support"
184 Generic PWM framework driver for PXA.
186 To compile this driver as a module, choose M here: the module
187 will be called pwm-pxa.
189 config PWM_RENESAS_TPU
190 tristate "Renesas TPU PWM support"
191 depends on ARCH_SHMOBILE || COMPILE_TEST
194 This driver exposes the Timer Pulse Unit (TPU) PWM controller found
195 in Renesas chips through the PWM API.
197 To compile this driver as a module, choose M here: the module
198 will be called pwm-renesas-tpu.
201 tristate "Samsung PWM support"
202 depends on PLAT_SAMSUNG
204 Generic PWM framework driver for Samsung.
206 To compile this driver as a module, choose M here: the module
207 will be called pwm-samsung.
210 tristate "STMicroelectronics SPEAr PWM support"
211 depends on PLAT_SPEAR
214 Generic PWM framework driver for the PWM controller on ST
217 To compile this driver as a module, choose M here: the module
218 will be called pwm-spear.
221 tristate "NVIDIA Tegra PWM support"
222 depends on ARCH_TEGRA
224 Generic PWM framework driver for the PWFM controller found on NVIDIA
227 To compile this driver as a module, choose M here: the module
228 will be called pwm-tegra.
231 tristate "ECAP PWM support"
232 depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
234 PWM driver support for the ECAP APWM controller found on AM33XX
237 To compile this driver as a module, choose M here: the module
238 will be called pwm-tiecap.
241 tristate "EHRPWM PWM support"
242 depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
244 PWM driver support for the EHRPWM controller found on AM33XX
247 To compile this driver as a module, choose M here: the module
248 will be called pwm-tiehrpwm.
252 default y if SOC_AM33XX && (PWM_TIECAP || PWM_TIEHRPWM)
254 PWM Subsystem driver support for AM33xx SOC.
256 PWM submodules require PWM config space access from submodule
257 drivers and require common parent driver support.
260 tristate "TWL4030/6030 PWM support"
261 depends on TWL4030_CORE
263 Generic PWM framework driver for TWL4030/6030.
265 To compile this driver as a module, choose M here: the module
266 will be called pwm-twl.
269 tristate "TWL4030/6030 PWM support for LED drivers"
270 depends on TWL4030_CORE
272 Generic PWM framework driver for TWL4030/6030 LED terminals.
274 To compile this driver as a module, choose M here: the module
275 will be called pwm-twl-led.
278 tristate "vt8500 PWM support"
279 depends on ARCH_VT8500
281 Generic PWM framework driver for vt8500.
283 To compile this driver as a module, choose M here: the module
284 will be called pwm-vt8500.