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 "Cirrus Logic EP93xx PWM support"
152 depends on ARCH_EP93XX
154 Generic PWM framework driver for Cirrus Logic EP93xx.
156 To compile this driver as a module, choose M here: the module
157 will be called pwm-ep93xx.
160 tristate "Freescale FlexTimer Module (FTM) PWM support"
165 Generic FTM PWM framework driver for Freescale VF610 and
166 Layerscape LS-1 SoCs.
168 To compile this driver as a module, choose M here: the module
169 will be called pwm-fsl-ftm.
172 tristate "Imagination Technologies PWM driver"
174 depends on MFD_SYSCON
175 depends on COMMON_CLK
176 depends on MIPS || COMPILE_TEST
178 Generic PWM framework driver for Imagination Technologies
179 PWM block which supports 4 channels.
181 To compile this driver as a module, choose M here: the module
182 will be called pwm-img
185 tristate "i.MX PWM support"
188 Generic PWM framework driver for i.MX.
190 To compile this driver as a module, choose M here: the module
191 will be called pwm-imx.
194 tristate "Ingenic JZ4740 PWM support"
195 depends on MACH_JZ4740
197 Generic PWM framework driver for Ingenic JZ4740 based
200 To compile this driver as a module, choose M here: the module
201 will be called pwm-jz4740.
204 tristate "TI/National Semiconductor LP3943 PWM support"
205 depends on MFD_LP3943
207 Generic PWM framework driver for LP3943 which supports two PWM
210 To compile this driver as a module, choose M here: the module
211 will be called pwm-lp3943.
213 config PWM_LPC18XX_SCT
214 tristate "LPC18xx/43xx PWM/SCT support"
215 depends on ARCH_LPC18XX
217 Generic PWM framework driver for NXP LPC18xx PWM/SCT which
218 supports 16 channels.
219 A maximum of 15 channels can be requested simultaneously and
220 must have the same period.
222 To compile this driver as a module, choose M here: the module
223 will be called pwm-lpc18xx-sct.
226 tristate "LPC32XX PWM support"
227 depends on ARCH_LPC32XX
229 Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
232 To compile this driver as a module, choose M here: the module
233 will be called pwm-lpc32xx.
239 tristate "Intel LPSS PWM PCI driver"
240 depends on X86 && PCI
243 The PCI driver for Intel Low Power Subsystem PWM controller.
245 To compile this driver as a module, choose M here: the module
246 will be called pwm-lpss-pci.
248 config PWM_LPSS_PLATFORM
249 tristate "Intel LPSS PWM platform driver"
250 depends on X86 && ACPI
253 The platform driver for Intel Low Power Subsystem PWM controller.
255 To compile this driver as a module, choose M here: the module
256 will be called pwm-lpss-platform.
259 tristate "MediaTek display PWM driver"
260 depends on ARCH_MEDIATEK || COMPILE_TEST
263 Generic PWM framework driver for MediaTek disp-pwm device.
264 The PWM is used to control the backlight brightness for display.
266 To compile this driver as a module, choose M here: the module
267 will be called pwm-mtk-disp.
270 tristate "Freescale MXS PWM support"
271 depends on ARCH_MXS && OF
274 Generic PWM framework driver for Freescale MXS.
276 To compile this driver as a module, choose M here: the module
277 will be called pwm-mxs.
279 config PWM_OMAP_DMTIMER
280 tristate "OMAP Dual-Mode Timer PWM support"
281 depends on OF && ARCH_OMAP && OMAP_DM_TIMER
283 Generic PWM framework driver for OMAP Dual-Mode Timer PWM output
285 To compile this driver as a module, choose M here: the module
286 will be called pwm-omap-dmtimer
289 tristate "NXP PCA9685 PWM driver"
293 Generic PWM framework driver for NXP PCA9685 LED controller.
295 To compile this driver as a module, choose M here: the module
296 will be called pwm-pca9685.
299 tristate "PKUnity NetBook-0916 PWM support"
302 Generic PWM framework driver for PKUnity NetBook-0916.
304 To compile this driver as a module, choose M here: the module
305 will be called pwm-puv3.
308 tristate "PXA PWM support"
311 Generic PWM framework driver for PXA.
313 To compile this driver as a module, choose M here: the module
314 will be called pwm-pxa.
317 tristate "Renesas R-Car PWM support"
318 depends on ARCH_RCAR_GEN1 || ARCH_RCAR_GEN2 || COMPILE_TEST
321 This driver exposes the PWM Timer controller found in Renesas
322 R-Car chips through the PWM API.
324 To compile this driver as a module, choose M here: the module
325 will be called pwm-rcar.
327 config PWM_RENESAS_TPU
328 tristate "Renesas TPU PWM support"
329 depends on ARCH_RENESAS || COMPILE_TEST
332 This driver exposes the Timer Pulse Unit (TPU) PWM controller found
333 in Renesas chips through the PWM API.
335 To compile this driver as a module, choose M here: the module
336 will be called pwm-renesas-tpu.
339 tristate "Rockchip PWM support"
340 depends on ARCH_ROCKCHIP
342 Generic PWM framework driver for the PWM controller found on
346 tristate "Samsung PWM support"
347 depends on PLAT_SAMSUNG || ARCH_EXYNOS
349 Generic PWM framework driver for Samsung.
351 To compile this driver as a module, choose M here: the module
352 will be called pwm-samsung.
355 tristate "STMicroelectronics SPEAr PWM support"
356 depends on PLAT_SPEAR
359 Generic PWM framework driver for the PWM controller on ST
362 To compile this driver as a module, choose M here: the module
363 will be called pwm-spear.
366 tristate "STiH4xx PWM support"
370 Generic PWM framework driver for STiH4xx SoCs.
372 To compile this driver as a module, choose M here: the module
373 will be called pwm-sti.
376 tristate "Allwinner PWM support"
377 depends on ARCH_SUNXI || COMPILE_TEST
378 depends on HAS_IOMEM && COMMON_CLK
380 Generic PWM framework driver for Allwinner SoCs.
382 To compile this driver as a module, choose M here: the module
383 will be called pwm-sun4i.
386 tristate "NVIDIA Tegra PWM support"
387 depends on ARCH_TEGRA
389 Generic PWM framework driver for the PWFM controller found on NVIDIA
392 To compile this driver as a module, choose M here: the module
393 will be called pwm-tegra.
396 tristate "ECAP PWM support"
397 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
399 PWM driver support for the ECAP APWM controller found on AM33XX
402 To compile this driver as a module, choose M here: the module
403 will be called pwm-tiecap.
406 tristate "EHRPWM PWM support"
407 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
409 PWM driver support for the EHRPWM controller found on AM33XX
412 To compile this driver as a module, choose M here: the module
413 will be called pwm-tiehrpwm.
417 default y if (ARCH_OMAP2PLUS) && (PWM_TIECAP || PWM_TIEHRPWM)
419 PWM Subsystem driver support for AM33xx SOC.
421 PWM submodules require PWM config space access from submodule
422 drivers and require common parent driver support.
425 tristate "TWL4030/6030 PWM support"
426 depends on TWL4030_CORE
428 Generic PWM framework driver for TWL4030/6030.
430 To compile this driver as a module, choose M here: the module
431 will be called pwm-twl.
434 tristate "TWL4030/6030 PWM support for LED drivers"
435 depends on TWL4030_CORE
437 Generic PWM framework driver for TWL4030/6030 LED terminals.
439 To compile this driver as a module, choose M here: the module
440 will be called pwm-twl-led.
443 tristate "vt8500 PWM support"
444 depends on ARCH_VT8500
446 Generic PWM framework driver for vt8500.
448 To compile this driver as a module, choose M here: the module
449 will be called pwm-vt8500.