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"
46 depends on ARCH_AT91 || AVR32
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 "Kona PWM support"
67 depends on ARCH_BCM_MOBILE
69 Generic PWM framework driver for Broadcom Kona PWM block.
71 To compile this driver as a module, choose M here: the module
72 will be called pwm-bcm-kona.
75 tristate "Blackfin PWM support"
76 depends on BFIN_GPTIMERS
78 Generic PWM framework driver for Blackfin.
80 To compile this driver as a module, choose M here: the module
81 will be called pwm-bfin.
84 tristate "CLPS711X PWM support"
85 depends on ARCH_CLPS711X || COMPILE_TEST
87 Generic PWM framework driver for Cirrus Logic CLPS711X.
89 To compile this driver as a module, choose M here: the module
90 will be called pwm-clps711x.
93 tristate "Cirrus Logic EP93xx PWM support"
94 depends on ARCH_EP93XX
96 Generic PWM framework driver for Cirrus Logic EP93xx.
98 To compile this driver as a module, choose M here: the module
99 will be called pwm-ep93xx.
102 tristate "Freescale FlexTimer Module (FTM) PWM support"
105 Generic FTM PWM framework driver for Freescale VF610 and
106 Layerscape LS-1 SoCs.
108 To compile this driver as a module, choose M here: the module
109 will be called pwm-fsl-ftm.
112 tristate "i.MX PWM support"
115 Generic PWM framework driver for i.MX.
117 To compile this driver as a module, choose M here: the module
118 will be called pwm-imx.
121 tristate "Ingenic JZ4740 PWM support"
122 depends on MACH_JZ4740
124 Generic PWM framework driver for Ingenic JZ4740 based
127 To compile this driver as a module, choose M here: the module
128 will be called pwm-jz4740.
131 tristate "TI/National Semiconductor LP3943 PWM support"
132 depends on MFD_LP3943
134 Generic PWM framework driver for LP3943 which supports two PWM
137 To compile this driver as a module, choose M here: the module
138 will be called pwm-lp3943.
141 tristate "LPC32XX PWM support"
142 depends on ARCH_LPC32XX
144 Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
147 To compile this driver as a module, choose M here: the module
148 will be called pwm-lpc32xx.
151 tristate "Intel LPSS PWM support"
154 Generic PWM framework driver for Intel Low Power Subsystem PWM
157 To compile this driver as a module, choose M here: the module
158 will be called pwm-lpss.
161 tristate "Freescale MXS PWM support"
162 depends on ARCH_MXS && OF
165 Generic PWM framework driver for Freescale MXS.
167 To compile this driver as a module, choose M here: the module
168 will be called pwm-mxs.
171 tristate "NXP PCA9685 PWM driver"
175 Generic PWM framework driver for NXP PCA9685 LED controller.
177 To compile this driver as a module, choose M here: the module
178 will be called pwm-pca9685.
181 tristate "PKUnity NetBook-0916 PWM support"
184 Generic PWM framework driver for PKUnity NetBook-0916.
186 To compile this driver as a module, choose M here: the module
187 will be called pwm-puv3.
190 tristate "PXA PWM support"
193 Generic PWM framework driver for PXA.
195 To compile this driver as a module, choose M here: the module
196 will be called pwm-pxa.
198 config PWM_RENESAS_TPU
199 tristate "Renesas TPU PWM support"
200 depends on ARCH_SHMOBILE || COMPILE_TEST
203 This driver exposes the Timer Pulse Unit (TPU) PWM controller found
204 in Renesas chips through the PWM API.
206 To compile this driver as a module, choose M here: the module
207 will be called pwm-renesas-tpu.
210 tristate "Rockchip PWM support"
211 depends on ARCH_ROCKCHIP
213 Generic PWM framework driver for the PWM controller found on
217 tristate "Samsung PWM support"
218 depends on PLAT_SAMSUNG
220 Generic PWM framework driver for Samsung.
222 To compile this driver as a module, choose M here: the module
223 will be called pwm-samsung.
226 tristate "STMicroelectronics SPEAr PWM support"
227 depends on PLAT_SPEAR
230 Generic PWM framework driver for the PWM controller on ST
233 To compile this driver as a module, choose M here: the module
234 will be called pwm-spear.
237 tristate "STiH4xx PWM support"
241 Generic PWM framework driver for STiH4xx SoCs.
243 To compile this driver as a module, choose M here: the module
244 will be called pwm-sti.
247 tristate "NVIDIA Tegra PWM support"
248 depends on ARCH_TEGRA
250 Generic PWM framework driver for the PWFM controller found on NVIDIA
253 To compile this driver as a module, choose M here: the module
254 will be called pwm-tegra.
257 tristate "ECAP PWM support"
258 depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
260 PWM driver support for the ECAP APWM controller found on AM33XX
263 To compile this driver as a module, choose M here: the module
264 will be called pwm-tiecap.
267 tristate "EHRPWM PWM support"
268 depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
270 PWM driver support for the EHRPWM controller found on AM33XX
273 To compile this driver as a module, choose M here: the module
274 will be called pwm-tiehrpwm.
278 default y if SOC_AM33XX && (PWM_TIECAP || PWM_TIEHRPWM)
280 PWM Subsystem driver support for AM33xx SOC.
282 PWM submodules require PWM config space access from submodule
283 drivers and require common parent driver support.
286 tristate "TWL4030/6030 PWM support"
287 depends on TWL4030_CORE
289 Generic PWM framework driver for TWL4030/6030.
291 To compile this driver as a module, choose M here: the module
292 will be called pwm-twl.
295 tristate "TWL4030/6030 PWM support for LED drivers"
296 depends on TWL4030_CORE
298 Generic PWM framework driver for TWL4030/6030 LED terminals.
300 To compile this driver as a module, choose M here: the module
301 will be called pwm-twl-led.
304 tristate "vt8500 PWM support"
305 depends on ARCH_VT8500
307 Generic PWM framework driver for vt8500.
309 To compile this driver as a module, choose M here: the module
310 will be called pwm-vt8500.