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 "Imagination Technologies PWM driver"
181 depends on MFD_SYSCON
182 depends on COMMON_CLK
183 depends on MIPS || COMPILE_TEST
185 Generic PWM framework driver for Imagination Technologies
186 PWM block which supports 4 channels.
188 To compile this driver as a module, choose M here: the module
189 will be called pwm-img
192 tristate "i.MX PWM support"
195 Generic PWM framework driver for i.MX.
197 To compile this driver as a module, choose M here: the module
198 will be called pwm-imx.
201 tristate "Ingenic JZ4740 PWM support"
202 depends on MACH_JZ4740
204 Generic PWM framework driver for Ingenic JZ4740 based
207 To compile this driver as a module, choose M here: the module
208 will be called pwm-jz4740.
211 tristate "TI/National Semiconductor LP3943 PWM support"
212 depends on MFD_LP3943
214 Generic PWM framework driver for LP3943 which supports two PWM
217 To compile this driver as a module, choose M here: the module
218 will be called pwm-lp3943.
220 config PWM_LPC18XX_SCT
221 tristate "LPC18xx/43xx PWM/SCT support"
222 depends on ARCH_LPC18XX
224 Generic PWM framework driver for NXP LPC18xx PWM/SCT which
225 supports 16 channels.
226 A maximum of 15 channels can be requested simultaneously and
227 must have the same period.
229 To compile this driver as a module, choose M here: the module
230 will be called pwm-lpc18xx-sct.
233 tristate "LPC32XX PWM support"
234 depends on ARCH_LPC32XX
236 Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
239 To compile this driver as a module, choose M here: the module
240 will be called pwm-lpc32xx.
246 tristate "Intel LPSS PWM PCI driver"
247 depends on X86 && PCI
250 The PCI driver for Intel Low Power Subsystem PWM controller.
252 To compile this driver as a module, choose M here: the module
253 will be called pwm-lpss-pci.
255 config PWM_LPSS_PLATFORM
256 tristate "Intel LPSS PWM platform driver"
257 depends on X86 && ACPI
260 The platform driver for Intel Low Power Subsystem PWM controller.
262 To compile this driver as a module, choose M here: the module
263 will be called pwm-lpss-platform.
266 tristate "MediaTek display PWM driver"
267 depends on ARCH_MEDIATEK || COMPILE_TEST
270 Generic PWM framework driver for MediaTek disp-pwm device.
271 The PWM is used to control the backlight brightness for display.
273 To compile this driver as a module, choose M here: the module
274 will be called pwm-mtk-disp.
277 tristate "Freescale MXS PWM support"
278 depends on ARCH_MXS && OF
281 Generic PWM framework driver for Freescale MXS.
283 To compile this driver as a module, choose M here: the module
284 will be called pwm-mxs.
286 config PWM_OMAP_DMTIMER
287 tristate "OMAP Dual-Mode Timer PWM support"
288 depends on OF && ARCH_OMAP && OMAP_DM_TIMER
290 Generic PWM framework driver for OMAP Dual-Mode Timer PWM output
292 To compile this driver as a module, choose M here: the module
293 will be called pwm-omap-dmtimer
296 tristate "NXP PCA9685 PWM driver"
300 Generic PWM framework driver for NXP PCA9685 LED controller.
302 To compile this driver as a module, choose M here: the module
303 will be called pwm-pca9685.
306 tristate "PKUnity NetBook-0916 PWM support"
309 Generic PWM framework driver for PKUnity NetBook-0916.
311 To compile this driver as a module, choose M here: the module
312 will be called pwm-puv3.
315 tristate "PXA PWM support"
318 Generic PWM framework driver for PXA.
320 To compile this driver as a module, choose M here: the module
321 will be called pwm-pxa.
324 tristate "Renesas R-Car PWM support"
325 depends on ARCH_RENESAS || COMPILE_TEST
328 This driver exposes the PWM Timer controller found in Renesas
329 R-Car chips through the PWM API.
331 To compile this driver as a module, choose M here: the module
332 will be called pwm-rcar.
334 config PWM_RENESAS_TPU
335 tristate "Renesas TPU PWM support"
336 depends on ARCH_RENESAS || COMPILE_TEST
339 This driver exposes the Timer Pulse Unit (TPU) PWM controller found
340 in Renesas chips through the PWM API.
342 To compile this driver as a module, choose M here: the module
343 will be called pwm-renesas-tpu.
346 tristate "Rockchip PWM support"
347 depends on ARCH_ROCKCHIP
349 Generic PWM framework driver for the PWM controller found on
353 tristate "Samsung PWM support"
354 depends on PLAT_SAMSUNG || ARCH_EXYNOS
356 Generic PWM framework driver for Samsung.
358 To compile this driver as a module, choose M here: the module
359 will be called pwm-samsung.
362 tristate "STMicroelectronics SPEAr PWM support"
363 depends on PLAT_SPEAR
366 Generic PWM framework driver for the PWM controller on ST
369 To compile this driver as a module, choose M here: the module
370 will be called pwm-spear.
373 tristate "STiH4xx PWM support"
377 Generic PWM framework driver for STiH4xx SoCs.
379 To compile this driver as a module, choose M here: the module
380 will be called pwm-sti.
383 bool "STMPE expander PWM export"
386 This enables support for the PWMs found in the STMPE I/O
390 tristate "Allwinner PWM support"
391 depends on ARCH_SUNXI || COMPILE_TEST
392 depends on HAS_IOMEM && COMMON_CLK
394 Generic PWM framework driver for Allwinner SoCs.
396 To compile this driver as a module, choose M here: the module
397 will be called pwm-sun4i.
400 tristate "NVIDIA Tegra PWM support"
401 depends on ARCH_TEGRA
403 Generic PWM framework driver for the PWFM controller found on NVIDIA
406 To compile this driver as a module, choose M here: the module
407 will be called pwm-tegra.
410 tristate "ECAP PWM support"
411 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
413 PWM driver support for the ECAP APWM controller found on AM33XX
416 To compile this driver as a module, choose M here: the module
417 will be called pwm-tiecap.
420 tristate "EHRPWM PWM support"
421 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
423 PWM driver support for the EHRPWM controller found on AM33XX
426 To compile this driver as a module, choose M here: the module
427 will be called pwm-tiehrpwm.
431 default y if (ARCH_OMAP2PLUS) && (PWM_TIECAP || PWM_TIEHRPWM)
433 PWM Subsystem driver support for AM33xx SOC.
435 PWM submodules require PWM config space access from submodule
436 drivers and require common parent driver support.
439 tristate "TWL4030/6030 PWM support"
440 depends on TWL4030_CORE
442 Generic PWM framework driver for TWL4030/6030.
444 To compile this driver as a module, choose M here: the module
445 will be called pwm-twl.
448 tristate "TWL4030/6030 PWM support for LED drivers"
449 depends on TWL4030_CORE
451 Generic PWM framework driver for TWL4030/6030 LED terminals.
453 To compile this driver as a module, choose M here: the module
454 will be called pwm-twl-led.
457 tristate "vt8500 PWM support"
458 depends on ARCH_VT8500
460 Generic PWM framework driver for vt8500.
462 To compile this driver as a module, choose M here: the module
463 will be called pwm-vt8500.