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
58 Generic PWM framework driver for the PWM output of the HLCDC
59 (Atmel High-end LCD Controller). This PWM output is mainly used
60 to control the LCD backlight.
62 To compile this driver as a module, choose M here: the module
63 will be called pwm-atmel-hlcdc.
66 tristate "Atmel TC Block PWM support"
67 depends on ATMEL_TCLIB && OF
69 Generic PWM framework driver for Atmel Timer Counter Block.
71 A Timer Counter Block provides 6 PWM devices grouped by 2.
72 Devices in a given group must have the same period.
74 To compile this driver as a module, choose M here: the module
75 will be called pwm-atmel-tcb.
78 tristate "Kona PWM support"
79 depends on ARCH_BCM_MOBILE
81 Generic PWM framework driver for Broadcom Kona PWM block.
83 To compile this driver as a module, choose M here: the module
84 will be called pwm-bcm-kona.
87 tristate "BCM2835 PWM support"
88 depends on ARCH_BCM2835
90 PWM framework driver for BCM2835 controller (Raspberry Pi)
92 To compile this driver as a module, choose M here: the module
93 will be called pwm-bcm2835.
96 tristate "Blackfin PWM support"
97 depends on BFIN_GPTIMERS
99 Generic PWM framework driver for Blackfin.
101 To compile this driver as a module, choose M here: the module
102 will be called pwm-bfin.
105 tristate "CLPS711X PWM support"
106 depends on ARCH_CLPS711X || COMPILE_TEST
109 Generic PWM framework driver for Cirrus Logic CLPS711X.
111 To compile this driver as a module, choose M here: the module
112 will be called pwm-clps711x.
115 bool "Intel Crystalcove (CRC) PWM support"
116 depends on X86 && INTEL_SOC_PMIC
118 Generic PWM framework driver for Crystalcove (CRC) PMIC based PWM
122 tristate "Cirrus Logic EP93xx PWM support"
123 depends on ARCH_EP93XX
125 Generic PWM framework driver for Cirrus Logic EP93xx.
127 To compile this driver as a module, choose M here: the module
128 will be called pwm-ep93xx.
131 tristate "Freescale FlexTimer Module (FTM) PWM support"
135 Generic FTM PWM framework driver for Freescale VF610 and
136 Layerscape LS-1 SoCs.
138 To compile this driver as a module, choose M here: the module
139 will be called pwm-fsl-ftm.
142 tristate "Imagination Technologies PWM driver"
144 depends on MFD_SYSCON
145 depends on COMMON_CLK
146 depends on MIPS || COMPILE_TEST
148 Generic PWM framework driver for Imagination Technologies
149 PWM block which supports 4 channels.
151 To compile this driver as a module, choose M here: the module
152 will be called pwm-img
155 tristate "i.MX PWM support"
158 Generic PWM framework driver for i.MX.
160 To compile this driver as a module, choose M here: the module
161 will be called pwm-imx.
164 tristate "Ingenic JZ4740 PWM support"
165 depends on MACH_JZ4740
167 Generic PWM framework driver for Ingenic JZ4740 based
170 To compile this driver as a module, choose M here: the module
171 will be called pwm-jz4740.
174 tristate "TI/National Semiconductor LP3943 PWM support"
175 depends on MFD_LP3943
177 Generic PWM framework driver for LP3943 which supports two PWM
180 To compile this driver as a module, choose M here: the module
181 will be called pwm-lp3943.
184 tristate "LPC32XX PWM support"
185 depends on ARCH_LPC32XX
187 Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
190 To compile this driver as a module, choose M here: the module
191 will be called pwm-lpc32xx.
194 tristate "Intel LPSS PWM support"
197 Generic PWM framework driver for Intel Low Power Subsystem PWM
200 To compile this driver as a module, choose M here: the module
201 will be called pwm-lpss.
204 tristate "Intel LPSS PWM PCI driver"
205 depends on PWM_LPSS && PCI
207 The PCI driver for Intel Low Power Subsystem PWM controller.
209 To compile this driver as a module, choose M here: the module
210 will be called pwm-lpss-pci.
212 config PWM_LPSS_PLATFORM
213 tristate "Intel LPSS PWM platform driver"
214 depends on PWM_LPSS && ACPI
216 The platform driver for Intel Low Power Subsystem PWM controller.
218 To compile this driver as a module, choose M here: the module
219 will be called pwm-lpss-platform.
222 tristate "Freescale MXS PWM support"
223 depends on ARCH_MXS && OF
226 Generic PWM framework driver for Freescale MXS.
228 To compile this driver as a module, choose M here: the module
229 will be called pwm-mxs.
232 tristate "NXP PCA9685 PWM driver"
236 Generic PWM framework driver for NXP PCA9685 LED controller.
238 To compile this driver as a module, choose M here: the module
239 will be called pwm-pca9685.
242 tristate "PKUnity NetBook-0916 PWM support"
245 Generic PWM framework driver for PKUnity NetBook-0916.
247 To compile this driver as a module, choose M here: the module
248 will be called pwm-puv3.
251 tristate "PXA PWM support"
254 Generic PWM framework driver for PXA.
256 To compile this driver as a module, choose M here: the module
257 will be called pwm-pxa.
259 config PWM_RENESAS_TPU
260 tristate "Renesas TPU PWM support"
261 depends on ARCH_SHMOBILE || COMPILE_TEST
264 This driver exposes the Timer Pulse Unit (TPU) PWM controller found
265 in Renesas chips through the PWM API.
267 To compile this driver as a module, choose M here: the module
268 will be called pwm-renesas-tpu.
271 tristate "Rockchip PWM support"
272 depends on ARCH_ROCKCHIP
274 Generic PWM framework driver for the PWM controller found on
278 tristate "Samsung PWM support"
279 depends on PLAT_SAMSUNG || ARCH_EXYNOS
281 Generic PWM framework driver for Samsung.
283 To compile this driver as a module, choose M here: the module
284 will be called pwm-samsung.
287 tristate "STMicroelectronics SPEAr PWM support"
288 depends on PLAT_SPEAR
291 Generic PWM framework driver for the PWM controller on ST
294 To compile this driver as a module, choose M here: the module
295 will be called pwm-spear.
298 tristate "STiH4xx PWM support"
302 Generic PWM framework driver for STiH4xx SoCs.
304 To compile this driver as a module, choose M here: the module
305 will be called pwm-sti.
308 tristate "Allwinner PWM support"
309 depends on ARCH_SUNXI || COMPILE_TEST
310 depends on HAS_IOMEM && COMMON_CLK
312 Generic PWM framework driver for Allwinner SoCs.
314 To compile this driver as a module, choose M here: the module
315 will be called pwm-sun4i.
318 tristate "NVIDIA Tegra PWM support"
319 depends on ARCH_TEGRA
321 Generic PWM framework driver for the PWFM controller found on NVIDIA
324 To compile this driver as a module, choose M here: the module
325 will be called pwm-tegra.
328 tristate "ECAP PWM support"
329 depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
331 PWM driver support for the ECAP APWM controller found on AM33XX
334 To compile this driver as a module, choose M here: the module
335 will be called pwm-tiecap.
338 tristate "EHRPWM PWM support"
339 depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
341 PWM driver support for the EHRPWM controller found on AM33XX
344 To compile this driver as a module, choose M here: the module
345 will be called pwm-tiehrpwm.
349 default y if SOC_AM33XX && (PWM_TIECAP || PWM_TIEHRPWM)
351 PWM Subsystem driver support for AM33xx SOC.
353 PWM submodules require PWM config space access from submodule
354 drivers and require common parent driver support.
357 tristate "TWL4030/6030 PWM support"
358 depends on TWL4030_CORE
360 Generic PWM framework driver for TWL4030/6030.
362 To compile this driver as a module, choose M here: the module
363 will be called pwm-twl.
366 tristate "TWL4030/6030 PWM support for LED drivers"
367 depends on TWL4030_CORE
369 Generic PWM framework driver for TWL4030/6030 LED terminals.
371 To compile this driver as a module, choose M here: the module
372 will be called pwm-twl-led.
375 tristate "vt8500 PWM support"
376 depends on ARCH_VT8500
378 Generic PWM framework driver for vt8500.
380 To compile this driver as a module, choose M here: the module
381 will be called pwm-vt8500.