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"
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 || COMPILE_TEST
81 default ARCH_BCM_IPROC
83 Generic PWM framework driver for Broadcom iProc PWM block. This
84 block is used in Broadcom iProc SoC's.
86 To compile this driver as a module, choose M here: the module
87 will be called pwm-bcm-iproc.
90 tristate "Kona PWM support"
91 depends on ARCH_BCM_MOBILE || ARCH_BCM_CYGNUS || COMPILE_TEST
92 depends on HAVE_CLK && HAS_IOMEM
93 default ARCH_BCM_MOBILE || ARCH_BCM_CYGNUS
95 Generic PWM framework driver for Broadcom Kona PWM block.
97 To compile this driver as a module, choose M here: the module
98 will be called pwm-bcm-kona.
101 tristate "BCM2835 PWM support"
102 depends on ARCH_BCM2835
104 PWM framework driver for BCM2835 controller (Raspberry Pi)
106 To compile this driver as a module, choose M here: the module
107 will be called pwm-bcm2835.
110 tristate "Marvell Berlin PWM support"
111 depends on ARCH_BERLIN
113 PWM framework driver for Marvell Berlin SoCs.
115 To compile this driver as a module, choose M here: the module
116 will be called pwm-berlin.
119 tristate "Broadcom STB PWM support"
120 depends on ARCH_BRCMSTB || BMIPS_GENERIC
122 Generic PWM framework driver for the Broadcom Set-top-Box
125 To compile this driver as a module, choose M Here: the module
126 will be called pwm-brcmstb.c.
129 tristate "CLPS711X PWM support"
130 depends on ARCH_CLPS711X || COMPILE_TEST
133 Generic PWM framework driver for Cirrus Logic CLPS711X.
135 To compile this driver as a module, choose M here: the module
136 will be called pwm-clps711x.
139 bool "Intel Crystalcove (CRC) PWM support"
140 depends on X86 && INTEL_SOC_PMIC
142 Generic PWM framework driver for Crystalcove (CRC) PMIC based PWM
146 tristate "ChromeOS EC PWM driver"
147 depends on MFD_CROS_EC
149 PWM driver for exposing a PWM attached to the ChromeOS Embedded
153 tristate "Cirrus Logic EP93xx PWM support"
154 depends on ARCH_EP93XX
156 Generic PWM framework driver for Cirrus Logic EP93xx.
158 To compile this driver as a module, choose M here: the module
159 will be called pwm-ep93xx.
162 tristate "Freescale FlexTimer Module (FTM) PWM support"
167 Generic FTM PWM framework driver for Freescale VF610 and
168 Layerscape LS-1 SoCs.
170 To compile this driver as a module, choose M here: the module
171 will be called pwm-fsl-ftm.
174 tristate "HiSilicon BVT PWM support"
175 depends on ARCH_HISI || COMPILE_TEST
177 Generic PWM framework driver for HiSilicon BVT SoCs.
179 To compile this driver as a module, choose M here: the module
180 will be called pwm-hibvt.
183 tristate "Imagination Technologies PWM driver"
185 depends on MFD_SYSCON
186 depends on COMMON_CLK
187 depends on MIPS || COMPILE_TEST
189 Generic PWM framework driver for Imagination Technologies
190 PWM block which supports 4 channels.
192 To compile this driver as a module, choose M here: the module
193 will be called pwm-img
196 tristate "i.MX1 PWM support"
199 Generic PWM framework driver for i.MX1 and i.MX21
201 To compile this driver as a module, choose M here: the module
202 will be called pwm-imx1.
205 tristate "i.MX27 PWM support"
208 Generic PWM framework driver for i.MX27 and later i.MX SoCs.
210 To compile this driver as a module, choose M here: the module
211 will be called pwm-imx27.
214 tristate "Ingenic JZ47xx PWM support"
215 depends on MACH_INGENIC
217 Generic PWM framework driver for Ingenic JZ47xx based
220 To compile this driver as a module, choose M here: the module
221 will be called pwm-jz4740.
224 tristate "TI/National Semiconductor LP3943 PWM support"
225 depends on MFD_LP3943
227 Generic PWM framework driver for LP3943 which supports two PWM
230 To compile this driver as a module, choose M here: the module
231 will be called pwm-lp3943.
233 config PWM_LPC18XX_SCT
234 tristate "LPC18xx/43xx PWM/SCT support"
235 depends on ARCH_LPC18XX
237 Generic PWM framework driver for NXP LPC18xx PWM/SCT which
238 supports 16 channels.
239 A maximum of 15 channels can be requested simultaneously and
240 must have the same period.
242 To compile this driver as a module, choose M here: the module
243 will be called pwm-lpc18xx-sct.
246 tristate "LPC32XX PWM support"
247 depends on ARCH_LPC32XX
249 Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
252 To compile this driver as a module, choose M here: the module
253 will be called pwm-lpc32xx.
259 tristate "Intel LPSS PWM PCI driver"
260 depends on X86 && PCI
263 The PCI driver for Intel Low Power Subsystem PWM controller.
265 To compile this driver as a module, choose M here: the module
266 will be called pwm-lpss-pci.
268 config PWM_LPSS_PLATFORM
269 tristate "Intel LPSS PWM platform driver"
270 depends on X86 && ACPI
273 The platform driver for Intel Low Power Subsystem PWM controller.
275 To compile this driver as a module, choose M here: the module
276 will be called pwm-lpss-platform.
279 tristate "Amlogic Meson PWM driver"
280 depends on ARCH_MESON
282 The platform driver for Amlogic Meson PWM controller.
284 To compile this driver as a module, choose M here: the module
285 will be called pwm-meson.
288 tristate "MediaTek display PWM driver"
289 depends on ARCH_MEDIATEK || COMPILE_TEST
292 Generic PWM framework driver for MediaTek disp-pwm device.
293 The PWM is used to control the backlight brightness for display.
295 To compile this driver as a module, choose M here: the module
296 will be called pwm-mtk-disp.
299 tristate "MediaTek PWM support"
300 depends on ARCH_MEDIATEK || RALINK || COMPILE_TEST
302 Generic PWM framework driver for Mediatek ARM SoC.
304 To compile this driver as a module, choose M here: the module
305 will be called pwm-mediatek.
308 tristate "Freescale MXS PWM support"
309 depends on ARCH_MXS && OF
312 Generic PWM framework driver for Freescale MXS.
314 To compile this driver as a module, choose M here: the module
315 will be called pwm-mxs.
317 config PWM_OMAP_DMTIMER
318 tristate "OMAP Dual-Mode Timer PWM support"
319 depends on OF && ARCH_OMAP && OMAP_DM_TIMER
321 Generic PWM framework driver for OMAP Dual-Mode Timer PWM output
323 To compile this driver as a module, choose M here: the module
324 will be called pwm-omap-dmtimer
327 tristate "NXP PCA9685 PWM driver"
331 Generic PWM framework driver for NXP PCA9685 LED controller.
333 To compile this driver as a module, choose M here: the module
334 will be called pwm-pca9685.
337 tristate "PKUnity NetBook-0916 PWM support"
340 Generic PWM framework driver for PKUnity NetBook-0916.
342 To compile this driver as a module, choose M here: the module
343 will be called pwm-puv3.
346 tristate "PXA PWM support"
349 Generic PWM framework driver for PXA.
351 To compile this driver as a module, choose M here: the module
352 will be called pwm-pxa.
355 tristate "Renesas R-Car PWM support"
356 depends on ARCH_RENESAS || COMPILE_TEST
359 This driver exposes the PWM Timer controller found in Renesas
360 R-Car chips through the PWM API.
362 To compile this driver as a module, choose M here: the module
363 will be called pwm-rcar.
365 config PWM_RENESAS_TPU
366 tristate "Renesas TPU PWM support"
367 depends on ARCH_RENESAS || COMPILE_TEST
370 This driver exposes the Timer Pulse Unit (TPU) PWM controller found
371 in Renesas chips through the PWM API.
373 To compile this driver as a module, choose M here: the module
374 will be called pwm-renesas-tpu.
377 tristate "Rockchip PWM support"
378 depends on ARCH_ROCKCHIP
380 Generic PWM framework driver for the PWM controller found on
384 tristate "Samsung PWM support"
385 depends on PLAT_SAMSUNG || ARCH_EXYNOS
387 Generic PWM framework driver for Samsung.
389 To compile this driver as a module, choose M here: the module
390 will be called pwm-samsung.
393 tristate "STMicroelectronics SPEAr PWM support"
394 depends on PLAT_SPEAR
397 Generic PWM framework driver for the PWM controller on ST
400 To compile this driver as a module, choose M here: the module
401 will be called pwm-spear.
404 tristate "STiH4xx PWM support"
408 Generic PWM framework driver for STiH4xx SoCs.
410 To compile this driver as a module, choose M here: the module
411 will be called pwm-sti.
414 tristate "STMicroelectronics STM32 PWM"
415 depends on MFD_STM32_TIMERS
417 Generic PWM framework driver for STM32 SoCs.
419 To compile this driver as a module, choose M here: the module
420 will be called pwm-stm32.
423 tristate "STMicroelectronics STM32 PWM LP"
424 depends on MFD_STM32_LPTIMER || COMPILE_TEST
426 Generic PWM framework driver for STMicroelectronics STM32 SoCs
427 with Low-Power Timer (LPTIM).
429 To compile this driver as a module, choose M here: the module
430 will be called pwm-stm32-lp.
433 bool "STMPE expander PWM export"
436 This enables support for the PWMs found in the STMPE I/O
440 tristate "Allwinner PWM support"
441 depends on ARCH_SUNXI || COMPILE_TEST
442 depends on HAS_IOMEM && COMMON_CLK
444 Generic PWM framework driver for Allwinner SoCs.
446 To compile this driver as a module, choose M here: the module
447 will be called pwm-sun4i.
450 tristate "NVIDIA Tegra PWM support"
451 depends on ARCH_TEGRA
453 Generic PWM framework driver for the PWFM controller found on NVIDIA
456 To compile this driver as a module, choose M here: the module
457 will be called pwm-tegra.
460 tristate "ECAP PWM support"
461 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX || ARCH_KEYSTONE || ARCH_K3
463 PWM driver support for the ECAP APWM controller found on TI SOCs
465 To compile this driver as a module, choose M here: the module
466 will be called pwm-tiecap.
469 tristate "EHRPWM PWM support"
470 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
472 PWM driver support for the EHRPWM controller found on AM33XX
475 To compile this driver as a module, choose M here: the module
476 will be called pwm-tiehrpwm.
480 default y if (ARCH_OMAP2PLUS) && (PWM_TIECAP || PWM_TIEHRPWM)
482 PWM Subsystem driver support for AM33xx SOC.
484 PWM submodules require PWM config space access from submodule
485 drivers and require common parent driver support.
488 tristate "TWL4030/6030 PWM support"
489 depends on TWL4030_CORE
491 Generic PWM framework driver for TWL4030/6030.
493 To compile this driver as a module, choose M here: the module
494 will be called pwm-twl.
497 tristate "TWL4030/6030 PWM support for LED drivers"
498 depends on TWL4030_CORE
500 Generic PWM framework driver for TWL4030/6030 LED terminals.
502 To compile this driver as a module, choose M here: the module
503 will be called pwm-twl-led.
506 tristate "vt8500 PWM support"
507 depends on ARCH_VT8500
509 Generic PWM framework driver for vt8500.
511 To compile this driver as a module, choose M here: the module
512 will be called pwm-vt8500.
515 tristate "ZTE ZX PWM support"
518 Generic PWM framework driver for ZTE ZX family SoCs.
520 To compile this driver as a module, choose M here: the module
521 will be called pwm-zx.