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.
53 config PWM_ATMEL_HLCDC_PWM
54 tristate "Atmel HLCDC PWM support"
55 depends on MFD_ATMEL_HLCDC
57 Generic PWM framework driver for the PWM output of the HLCDC
58 (Atmel High-end LCD Controller). This PWM output is mainly used
59 to control the LCD backlight.
61 To compile this driver as a module, choose M here: the module
62 will be called pwm-atmel-hlcdc.
65 tristate "Atmel TC Block PWM support"
66 depends on ATMEL_TCLIB && OF
68 Generic PWM framework driver for Atmel Timer Counter Block.
70 A Timer Counter Block provides 6 PWM devices grouped by 2.
71 Devices in a given group must have the same period.
73 To compile this driver as a module, choose M here: the module
74 will be called pwm-atmel-tcb.
77 tristate "Kona PWM support"
78 depends on ARCH_BCM_MOBILE
80 Generic PWM framework driver for Broadcom Kona PWM block.
82 To compile this driver as a module, choose M here: the module
83 will be called pwm-bcm-kona.
86 tristate "BCM2835 PWM support"
87 depends on ARCH_BCM2835
89 PWM framework driver for BCM2835 controller (Raspberry Pi)
91 To compile this driver as a module, choose M here: the module
92 will be called pwm-bcm2835.
95 tristate "Blackfin PWM support"
96 depends on BFIN_GPTIMERS
98 Generic PWM framework driver for Blackfin.
100 To compile this driver as a module, choose M here: the module
101 will be called pwm-bfin.
104 tristate "CLPS711X PWM support"
105 depends on ARCH_CLPS711X || COMPILE_TEST
108 Generic PWM framework driver for Cirrus Logic CLPS711X.
110 To compile this driver as a module, choose M here: the module
111 will be called pwm-clps711x.
114 tristate "Cirrus Logic EP93xx PWM support"
115 depends on ARCH_EP93XX
117 Generic PWM framework driver for Cirrus Logic EP93xx.
119 To compile this driver as a module, choose M here: the module
120 will be called pwm-ep93xx.
123 tristate "Freescale FlexTimer Module (FTM) PWM support"
127 Generic FTM PWM framework driver for Freescale VF610 and
128 Layerscape LS-1 SoCs.
130 To compile this driver as a module, choose M here: the module
131 will be called pwm-fsl-ftm.
134 tristate "i.MX PWM support"
137 Generic PWM framework driver for i.MX.
139 To compile this driver as a module, choose M here: the module
140 will be called pwm-imx.
143 tristate "Ingenic JZ4740 PWM support"
144 depends on MACH_JZ4740
146 Generic PWM framework driver for Ingenic JZ4740 based
149 To compile this driver as a module, choose M here: the module
150 will be called pwm-jz4740.
153 tristate "TI/National Semiconductor LP3943 PWM support"
154 depends on MFD_LP3943
156 Generic PWM framework driver for LP3943 which supports two PWM
159 To compile this driver as a module, choose M here: the module
160 will be called pwm-lp3943.
163 tristate "LPC32XX PWM support"
164 depends on ARCH_LPC32XX
166 Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
169 To compile this driver as a module, choose M here: the module
170 will be called pwm-lpc32xx.
173 tristate "Intel LPSS PWM support"
176 Generic PWM framework driver for Intel Low Power Subsystem PWM
179 To compile this driver as a module, choose M here: the module
180 will be called pwm-lpss.
183 tristate "Intel LPSS PWM PCI driver"
184 depends on PWM_LPSS && PCI
186 The PCI driver for Intel Low Power Subsystem PWM controller.
188 To compile this driver as a module, choose M here: the module
189 will be called pwm-lpss-pci.
191 config PWM_LPSS_PLATFORM
192 tristate "Intel LPSS PWM platform driver"
193 depends on PWM_LPSS && ACPI
195 The platform driver for Intel Low Power Subsystem PWM controller.
197 To compile this driver as a module, choose M here: the module
198 will be called pwm-lpss-platform.
201 tristate "Freescale MXS PWM support"
202 depends on ARCH_MXS && OF
205 Generic PWM framework driver for Freescale MXS.
207 To compile this driver as a module, choose M here: the module
208 will be called pwm-mxs.
211 tristate "NXP PCA9685 PWM driver"
215 Generic PWM framework driver for NXP PCA9685 LED controller.
217 To compile this driver as a module, choose M here: the module
218 will be called pwm-pca9685.
221 tristate "PKUnity NetBook-0916 PWM support"
224 Generic PWM framework driver for PKUnity NetBook-0916.
226 To compile this driver as a module, choose M here: the module
227 will be called pwm-puv3.
230 tristate "PXA PWM support"
233 Generic PWM framework driver for PXA.
235 To compile this driver as a module, choose M here: the module
236 will be called pwm-pxa.
238 config PWM_RENESAS_TPU
239 tristate "Renesas TPU PWM support"
240 depends on ARCH_SHMOBILE || COMPILE_TEST
243 This driver exposes the Timer Pulse Unit (TPU) PWM controller found
244 in Renesas chips through the PWM API.
246 To compile this driver as a module, choose M here: the module
247 will be called pwm-renesas-tpu.
250 tristate "Rockchip PWM support"
251 depends on ARCH_ROCKCHIP
253 Generic PWM framework driver for the PWM controller found on
257 tristate "Samsung PWM support"
258 depends on PLAT_SAMSUNG || ARCH_EXYNOS
260 Generic PWM framework driver for Samsung.
262 To compile this driver as a module, choose M here: the module
263 will be called pwm-samsung.
266 tristate "STMicroelectronics SPEAr PWM support"
267 depends on PLAT_SPEAR
270 Generic PWM framework driver for the PWM controller on ST
273 To compile this driver as a module, choose M here: the module
274 will be called pwm-spear.
277 tristate "STiH4xx PWM support"
281 Generic PWM framework driver for STiH4xx SoCs.
283 To compile this driver as a module, choose M here: the module
284 will be called pwm-sti.
287 tristate "NVIDIA Tegra PWM support"
288 depends on ARCH_TEGRA
290 Generic PWM framework driver for the PWFM controller found on NVIDIA
293 To compile this driver as a module, choose M here: the module
294 will be called pwm-tegra.
297 tristate "ECAP PWM support"
298 depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
300 PWM driver support for the ECAP APWM controller found on AM33XX
303 To compile this driver as a module, choose M here: the module
304 will be called pwm-tiecap.
307 tristate "EHRPWM PWM support"
308 depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
310 PWM driver support for the EHRPWM controller found on AM33XX
313 To compile this driver as a module, choose M here: the module
314 will be called pwm-tiehrpwm.
318 default y if SOC_AM33XX && (PWM_TIECAP || PWM_TIEHRPWM)
320 PWM Subsystem driver support for AM33xx SOC.
322 PWM submodules require PWM config space access from submodule
323 drivers and require common parent driver support.
326 tristate "TWL4030/6030 PWM support"
327 depends on TWL4030_CORE
329 Generic PWM framework driver for TWL4030/6030.
331 To compile this driver as a module, choose M here: the module
332 will be called pwm-twl.
335 tristate "TWL4030/6030 PWM support for LED drivers"
336 depends on TWL4030_CORE
338 Generic PWM framework driver for TWL4030/6030 LED terminals.
340 To compile this driver as a module, choose M here: the module
341 will be called pwm-twl-led.
344 tristate "vt8500 PWM support"
345 depends on ARCH_VT8500
347 Generic PWM framework driver for vt8500.
349 To compile this driver as a module, choose M here: the module
350 will be called pwm-vt8500.