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"
106 Generic FTM PWM framework driver for Freescale VF610 and
107 Layerscape LS-1 SoCs.
109 To compile this driver as a module, choose M here: the module
110 will be called pwm-fsl-ftm.
113 tristate "i.MX PWM support"
116 Generic PWM framework driver for i.MX.
118 To compile this driver as a module, choose M here: the module
119 will be called pwm-imx.
122 tristate "Ingenic JZ4740 PWM support"
123 depends on MACH_JZ4740
125 Generic PWM framework driver for Ingenic JZ4740 based
128 To compile this driver as a module, choose M here: the module
129 will be called pwm-jz4740.
132 tristate "TI/National Semiconductor LP3943 PWM support"
133 depends on MFD_LP3943
135 Generic PWM framework driver for LP3943 which supports two PWM
138 To compile this driver as a module, choose M here: the module
139 will be called pwm-lp3943.
142 tristate "LPC32XX PWM support"
143 depends on ARCH_LPC32XX
145 Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
148 To compile this driver as a module, choose M here: the module
149 will be called pwm-lpc32xx.
152 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 "Intel LPSS PWM PCI driver"
162 depends on PWM_LPSS && PCI
164 The PCI driver for Intel Low Power Subsystem PWM controller.
166 To compile this driver as a module, choose M here: the module
167 will be called pwm-lpss-pci.
169 config PWM_LPSS_PLATFORM
170 tristate "Intel LPSS PWM platform driver"
171 depends on PWM_LPSS && ACPI
173 The platform driver for Intel Low Power Subsystem PWM controller.
175 To compile this driver as a module, choose M here: the module
176 will be called pwm-lpss-platform.
179 tristate "Freescale MXS PWM support"
180 depends on ARCH_MXS && OF
183 Generic PWM framework driver for Freescale MXS.
185 To compile this driver as a module, choose M here: the module
186 will be called pwm-mxs.
189 tristate "NXP PCA9685 PWM driver"
193 Generic PWM framework driver for NXP PCA9685 LED controller.
195 To compile this driver as a module, choose M here: the module
196 will be called pwm-pca9685.
199 tristate "PKUnity NetBook-0916 PWM support"
202 Generic PWM framework driver for PKUnity NetBook-0916.
204 To compile this driver as a module, choose M here: the module
205 will be called pwm-puv3.
208 tristate "PXA PWM support"
211 Generic PWM framework driver for PXA.
213 To compile this driver as a module, choose M here: the module
214 will be called pwm-pxa.
216 config PWM_RENESAS_TPU
217 tristate "Renesas TPU PWM support"
218 depends on ARCH_SHMOBILE || COMPILE_TEST
221 This driver exposes the Timer Pulse Unit (TPU) PWM controller found
222 in Renesas chips through the PWM API.
224 To compile this driver as a module, choose M here: the module
225 will be called pwm-renesas-tpu.
228 tristate "Rockchip PWM support"
229 depends on ARCH_ROCKCHIP
231 Generic PWM framework driver for the PWM controller found on
235 tristate "Samsung PWM support"
236 depends on PLAT_SAMSUNG
238 Generic PWM framework driver for Samsung.
240 To compile this driver as a module, choose M here: the module
241 will be called pwm-samsung.
244 tristate "STMicroelectronics SPEAr PWM support"
245 depends on PLAT_SPEAR
248 Generic PWM framework driver for the PWM controller on ST
251 To compile this driver as a module, choose M here: the module
252 will be called pwm-spear.
255 tristate "STiH4xx PWM support"
259 Generic PWM framework driver for STiH4xx SoCs.
261 To compile this driver as a module, choose M here: the module
262 will be called pwm-sti.
265 tristate "NVIDIA Tegra PWM support"
266 depends on ARCH_TEGRA
268 Generic PWM framework driver for the PWFM controller found on NVIDIA
271 To compile this driver as a module, choose M here: the module
272 will be called pwm-tegra.
275 tristate "ECAP PWM support"
276 depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
278 PWM driver support for the ECAP APWM controller found on AM33XX
281 To compile this driver as a module, choose M here: the module
282 will be called pwm-tiecap.
285 tristate "EHRPWM PWM support"
286 depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
288 PWM driver support for the EHRPWM controller found on AM33XX
291 To compile this driver as a module, choose M here: the module
292 will be called pwm-tiehrpwm.
296 default y if SOC_AM33XX && (PWM_TIECAP || PWM_TIEHRPWM)
298 PWM Subsystem driver support for AM33xx SOC.
300 PWM submodules require PWM config space access from submodule
301 drivers and require common parent driver support.
304 tristate "TWL4030/6030 PWM support"
305 depends on TWL4030_CORE
307 Generic PWM framework driver for TWL4030/6030.
309 To compile this driver as a module, choose M here: the module
310 will be called pwm-twl.
313 tristate "TWL4030/6030 PWM support for LED drivers"
314 depends on TWL4030_CORE
316 Generic PWM framework driver for TWL4030/6030 LED terminals.
318 To compile this driver as a module, choose M here: the module
319 will be called pwm-twl-led.
322 tristate "vt8500 PWM support"
323 depends on ARCH_VT8500
325 Generic PWM framework driver for vt8500.
327 To compile this driver as a module, choose M here: the module
328 will be called pwm-vt8500.