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 "iProc PWM support"
79 depends on ARCH_BCM_IPROC
81 Generic PWM framework driver for Broadcom iProc PWM block. This
82 block is used in Broadcom iProc SoC's.
84 To compile this driver as a module, choose M here: the module
85 will be called pwm-bcm-iproc.
88 tristate "Kona PWM support"
89 depends on ARCH_BCM_MOBILE
91 Generic PWM framework driver for Broadcom Kona PWM block.
93 To compile this driver as a module, choose M here: the module
94 will be called pwm-bcm-kona.
97 tristate "BCM2835 PWM support"
98 depends on ARCH_BCM2835
100 PWM framework driver for BCM2835 controller (Raspberry Pi)
102 To compile this driver as a module, choose M here: the module
103 will be called pwm-bcm2835.
106 tristate "Marvell Berlin PWM support"
107 depends on ARCH_BERLIN
109 PWM framework driver for Marvell Berlin SoCs.
111 To compile this driver as a module, choose M here: the module
112 will be called pwm-berlin.
115 tristate "Blackfin PWM support"
116 depends on BFIN_GPTIMERS
118 Generic PWM framework driver for Blackfin.
120 To compile this driver as a module, choose M here: the module
121 will be called pwm-bfin.
124 tristate "Broadcom STB PWM support"
125 depends on ARCH_BRCMSTB || BMIPS_GENERIC
127 Generic PWM framework driver for the Broadcom Set-top-Box
130 To compile this driver as a module, choose M Here: the module
131 will be called pwm-brcmstb.c.
134 tristate "CLPS711X PWM support"
135 depends on ARCH_CLPS711X || COMPILE_TEST
138 Generic PWM framework driver for Cirrus Logic CLPS711X.
140 To compile this driver as a module, choose M here: the module
141 will be called pwm-clps711x.
144 bool "Intel Crystalcove (CRC) PWM support"
145 depends on X86 && INTEL_SOC_PMIC
147 Generic PWM framework driver for Crystalcove (CRC) PMIC based PWM
151 tristate "ChromeOS EC PWM driver"
152 depends on MFD_CROS_EC
154 PWM driver for exposing a PWM attached to the ChromeOS Embedded
158 tristate "Cirrus Logic EP93xx PWM support"
159 depends on ARCH_EP93XX
161 Generic PWM framework driver for Cirrus Logic EP93xx.
163 To compile this driver as a module, choose M here: the module
164 will be called pwm-ep93xx.
167 tristate "Freescale FlexTimer Module (FTM) PWM support"
172 Generic FTM PWM framework driver for Freescale VF610 and
173 Layerscape LS-1 SoCs.
175 To compile this driver as a module, choose M here: the module
176 will be called pwm-fsl-ftm.
179 tristate "HiSilicon BVT PWM support"
180 depends on ARCH_HISI || COMPILE_TEST
182 Generic PWM framework driver for HiSilicon BVT SoCs.
184 To compile this driver as a module, choose M here: the module
185 will be called pwm-hibvt.
188 tristate "Imagination Technologies PWM driver"
190 depends on MFD_SYSCON
191 depends on COMMON_CLK
192 depends on MIPS || COMPILE_TEST
194 Generic PWM framework driver for Imagination Technologies
195 PWM block which supports 4 channels.
197 To compile this driver as a module, choose M here: the module
198 will be called pwm-img
201 tristate "i.MX PWM support"
204 Generic PWM framework driver for i.MX.
206 To compile this driver as a module, choose M here: the module
207 will be called pwm-imx.
210 tristate "Ingenic JZ4740 PWM support"
211 depends on MACH_JZ4740
213 Generic PWM framework driver for Ingenic JZ4740 based
216 To compile this driver as a module, choose M here: the module
217 will be called pwm-jz4740.
220 tristate "TI/National Semiconductor LP3943 PWM support"
221 depends on MFD_LP3943
223 Generic PWM framework driver for LP3943 which supports two PWM
226 To compile this driver as a module, choose M here: the module
227 will be called pwm-lp3943.
229 config PWM_LPC18XX_SCT
230 tristate "LPC18xx/43xx PWM/SCT support"
231 depends on ARCH_LPC18XX
233 Generic PWM framework driver for NXP LPC18xx PWM/SCT which
234 supports 16 channels.
235 A maximum of 15 channels can be requested simultaneously and
236 must have the same period.
238 To compile this driver as a module, choose M here: the module
239 will be called pwm-lpc18xx-sct.
242 tristate "LPC32XX PWM support"
243 depends on ARCH_LPC32XX
245 Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
248 To compile this driver as a module, choose M here: the module
249 will be called pwm-lpc32xx.
255 tristate "Intel LPSS PWM PCI driver"
256 depends on X86 && PCI
259 The PCI driver for Intel Low Power Subsystem PWM controller.
261 To compile this driver as a module, choose M here: the module
262 will be called pwm-lpss-pci.
264 config PWM_LPSS_PLATFORM
265 tristate "Intel LPSS PWM platform driver"
266 depends on X86 && ACPI
269 The platform driver for Intel Low Power Subsystem PWM controller.
271 To compile this driver as a module, choose M here: the module
272 will be called pwm-lpss-platform.
275 tristate "Amlogic Meson PWM driver"
276 depends on ARCH_MESON
278 The platform driver for Amlogic Meson PWM controller.
280 To compile this driver as a module, choose M here: the module
281 will be called pwm-meson.
284 tristate "MediaTek display PWM driver"
285 depends on ARCH_MEDIATEK || COMPILE_TEST
288 Generic PWM framework driver for MediaTek disp-pwm device.
289 The PWM is used to control the backlight brightness for display.
291 To compile this driver as a module, choose M here: the module
292 will be called pwm-mtk-disp.
295 tristate "Freescale MXS PWM support"
296 depends on ARCH_MXS && OF
299 Generic PWM framework driver for Freescale MXS.
301 To compile this driver as a module, choose M here: the module
302 will be called pwm-mxs.
304 config PWM_OMAP_DMTIMER
305 tristate "OMAP Dual-Mode Timer PWM support"
306 depends on OF && ARCH_OMAP && OMAP_DM_TIMER
308 Generic PWM framework driver for OMAP Dual-Mode Timer PWM output
310 To compile this driver as a module, choose M here: the module
311 will be called pwm-omap-dmtimer
314 tristate "NXP PCA9685 PWM driver"
318 Generic PWM framework driver for NXP PCA9685 LED controller.
320 To compile this driver as a module, choose M here: the module
321 will be called pwm-pca9685.
324 tristate "PKUnity NetBook-0916 PWM support"
327 Generic PWM framework driver for PKUnity NetBook-0916.
329 To compile this driver as a module, choose M here: the module
330 will be called pwm-puv3.
333 tristate "PXA PWM support"
336 Generic PWM framework driver for PXA.
338 To compile this driver as a module, choose M here: the module
339 will be called pwm-pxa.
342 tristate "Renesas R-Car PWM support"
343 depends on ARCH_RENESAS || COMPILE_TEST
346 This driver exposes the PWM Timer controller found in Renesas
347 R-Car chips through the PWM API.
349 To compile this driver as a module, choose M here: the module
350 will be called pwm-rcar.
352 config PWM_RENESAS_TPU
353 tristate "Renesas TPU PWM support"
354 depends on ARCH_RENESAS || COMPILE_TEST
357 This driver exposes the Timer Pulse Unit (TPU) PWM controller found
358 in Renesas chips through the PWM API.
360 To compile this driver as a module, choose M here: the module
361 will be called pwm-renesas-tpu.
364 tristate "Rockchip PWM support"
365 depends on ARCH_ROCKCHIP
367 Generic PWM framework driver for the PWM controller found on
371 tristate "Samsung PWM support"
372 depends on PLAT_SAMSUNG || ARCH_EXYNOS
374 Generic PWM framework driver for Samsung.
376 To compile this driver as a module, choose M here: the module
377 will be called pwm-samsung.
380 tristate "STMicroelectronics SPEAr PWM support"
381 depends on PLAT_SPEAR
384 Generic PWM framework driver for the PWM controller on ST
387 To compile this driver as a module, choose M here: the module
388 will be called pwm-spear.
391 tristate "STiH4xx PWM support"
395 Generic PWM framework driver for STiH4xx SoCs.
397 To compile this driver as a module, choose M here: the module
398 will be called pwm-sti.
401 tristate "STMicroelectronics STM32 PWM"
402 depends on MFD_STM32_TIMERS || COMPILE_TEST
404 Generic PWM framework driver for STM32 SoCs.
406 To compile this driver as a module, choose M here: the module
407 will be called pwm-stm32.
410 bool "STMPE expander PWM export"
413 This enables support for the PWMs found in the STMPE I/O
417 tristate "Allwinner PWM support"
418 depends on ARCH_SUNXI || COMPILE_TEST
419 depends on HAS_IOMEM && COMMON_CLK
421 Generic PWM framework driver for Allwinner SoCs.
423 To compile this driver as a module, choose M here: the module
424 will be called pwm-sun4i.
427 tristate "NVIDIA Tegra PWM support"
428 depends on ARCH_TEGRA
430 Generic PWM framework driver for the PWFM controller found on NVIDIA
433 To compile this driver as a module, choose M here: the module
434 will be called pwm-tegra.
437 tristate "ECAP PWM support"
438 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
440 PWM driver support for the ECAP APWM controller found on AM33XX
443 To compile this driver as a module, choose M here: the module
444 will be called pwm-tiecap.
447 tristate "EHRPWM PWM support"
448 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
450 PWM driver support for the EHRPWM controller found on AM33XX
453 To compile this driver as a module, choose M here: the module
454 will be called pwm-tiehrpwm.
458 default y if (ARCH_OMAP2PLUS) && (PWM_TIECAP || PWM_TIEHRPWM)
460 PWM Subsystem driver support for AM33xx SOC.
462 PWM submodules require PWM config space access from submodule
463 drivers and require common parent driver support.
466 tristate "TWL4030/6030 PWM support"
467 depends on TWL4030_CORE
469 Generic PWM framework driver for TWL4030/6030.
471 To compile this driver as a module, choose M here: the module
472 will be called pwm-twl.
475 tristate "TWL4030/6030 PWM support for LED drivers"
476 depends on TWL4030_CORE
478 Generic PWM framework driver for TWL4030/6030 LED terminals.
480 To compile this driver as a module, choose M here: the module
481 will be called pwm-twl-led.
484 tristate "vt8500 PWM support"
485 depends on ARCH_VT8500
487 Generic PWM framework driver for vt8500.
489 To compile this driver as a module, choose M here: the module
490 will be called pwm-vt8500.