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.
183 config PWM_LPC18XX_SCT
184 tristate "LPC18xx/43xx PWM/SCT support"
185 depends on ARCH_LPC18XX
187 Generic PWM framework driver for NXP LPC18xx PWM/SCT which
188 supports 16 channels.
189 A maximum of 15 channels can be requested simultaneously and
190 must have the same period.
192 To compile this driver as a module, choose M here: the module
193 will be called pwm-lpc18xx-sct.
196 tristate "LPC32XX PWM support"
197 depends on ARCH_LPC32XX
199 Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
202 To compile this driver as a module, choose M here: the module
203 will be called pwm-lpc32xx.
206 tristate "Intel LPSS PWM support"
209 Generic PWM framework driver for Intel Low Power Subsystem PWM
212 To compile this driver as a module, choose M here: the module
213 will be called pwm-lpss.
216 tristate "Intel LPSS PWM PCI driver"
217 depends on PWM_LPSS && PCI
219 The PCI driver for Intel Low Power Subsystem PWM controller.
221 To compile this driver as a module, choose M here: the module
222 will be called pwm-lpss-pci.
224 config PWM_LPSS_PLATFORM
225 tristate "Intel LPSS PWM platform driver"
226 depends on PWM_LPSS && ACPI
228 The platform driver for Intel Low Power Subsystem PWM controller.
230 To compile this driver as a module, choose M here: the module
231 will be called pwm-lpss-platform.
234 tristate "Freescale MXS PWM support"
235 depends on ARCH_MXS && OF
238 Generic PWM framework driver for Freescale MXS.
240 To compile this driver as a module, choose M here: the module
241 will be called pwm-mxs.
244 tristate "NXP PCA9685 PWM driver"
248 Generic PWM framework driver for NXP PCA9685 LED controller.
250 To compile this driver as a module, choose M here: the module
251 will be called pwm-pca9685.
254 tristate "PKUnity NetBook-0916 PWM support"
257 Generic PWM framework driver for PKUnity NetBook-0916.
259 To compile this driver as a module, choose M here: the module
260 will be called pwm-puv3.
263 tristate "PXA PWM support"
266 Generic PWM framework driver for PXA.
268 To compile this driver as a module, choose M here: the module
269 will be called pwm-pxa.
271 config PWM_RENESAS_TPU
272 tristate "Renesas TPU PWM support"
273 depends on ARCH_SHMOBILE || COMPILE_TEST
276 This driver exposes the Timer Pulse Unit (TPU) PWM controller found
277 in Renesas chips through the PWM API.
279 To compile this driver as a module, choose M here: the module
280 will be called pwm-renesas-tpu.
283 tristate "Rockchip PWM support"
284 depends on ARCH_ROCKCHIP
286 Generic PWM framework driver for the PWM controller found on
290 tristate "Samsung PWM support"
291 depends on PLAT_SAMSUNG || ARCH_EXYNOS
293 Generic PWM framework driver for Samsung.
295 To compile this driver as a module, choose M here: the module
296 will be called pwm-samsung.
299 tristate "STMicroelectronics SPEAr PWM support"
300 depends on PLAT_SPEAR
303 Generic PWM framework driver for the PWM controller on ST
306 To compile this driver as a module, choose M here: the module
307 will be called pwm-spear.
310 tristate "STiH4xx PWM support"
314 Generic PWM framework driver for STiH4xx SoCs.
316 To compile this driver as a module, choose M here: the module
317 will be called pwm-sti.
320 tristate "Allwinner PWM support"
321 depends on ARCH_SUNXI || COMPILE_TEST
322 depends on HAS_IOMEM && COMMON_CLK
324 Generic PWM framework driver for Allwinner SoCs.
326 To compile this driver as a module, choose M here: the module
327 will be called pwm-sun4i.
330 tristate "NVIDIA Tegra PWM support"
331 depends on ARCH_TEGRA
333 Generic PWM framework driver for the PWFM controller found on NVIDIA
336 To compile this driver as a module, choose M here: the module
337 will be called pwm-tegra.
340 tristate "ECAP PWM support"
341 depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
343 PWM driver support for the ECAP APWM controller found on AM33XX
346 To compile this driver as a module, choose M here: the module
347 will be called pwm-tiecap.
350 tristate "EHRPWM PWM support"
351 depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
353 PWM driver support for the EHRPWM controller found on AM33XX
356 To compile this driver as a module, choose M here: the module
357 will be called pwm-tiehrpwm.
361 default y if SOC_AM33XX && (PWM_TIECAP || PWM_TIEHRPWM)
363 PWM Subsystem driver support for AM33xx SOC.
365 PWM submodules require PWM config space access from submodule
366 drivers and require common parent driver support.
369 tristate "TWL4030/6030 PWM support"
370 depends on TWL4030_CORE
372 Generic PWM framework driver for TWL4030/6030.
374 To compile this driver as a module, choose M here: the module
375 will be called pwm-twl.
378 tristate "TWL4030/6030 PWM support for LED drivers"
379 depends on TWL4030_CORE
381 Generic PWM framework driver for TWL4030/6030 LED terminals.
383 To compile this driver as a module, choose M here: the module
384 will be called pwm-twl-led.
387 tristate "vt8500 PWM support"
388 depends on ARCH_VT8500
390 Generic PWM framework driver for vt8500.
392 To compile this driver as a module, choose M here: the module
393 will be called pwm-vt8500.