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 "Marvell Berlin PWM support"
97 depends on ARCH_BERLIN
99 PWM framework driver for Marvell Berlin SoCs.
101 To compile this driver as a module, choose M here: the module
102 will be called pwm-berlin.
105 tristate "Blackfin PWM support"
106 depends on BFIN_GPTIMERS
108 Generic PWM framework driver for Blackfin.
110 To compile this driver as a module, choose M here: the module
111 will be called pwm-bfin.
114 tristate "Broadcom STB PWM support"
115 depends on ARCH_BRCMSTB || BMIPS_GENERIC
117 Generic PWM framework driver for the Broadcom Set-top-Box
120 To compile this driver as a module, choose M Here: the module
121 will be called pwm-brcmstb.c.
124 tristate "CLPS711X PWM support"
125 depends on ARCH_CLPS711X || COMPILE_TEST
128 Generic PWM framework driver for Cirrus Logic CLPS711X.
130 To compile this driver as a module, choose M here: the module
131 will be called pwm-clps711x.
134 bool "Intel Crystalcove (CRC) PWM support"
135 depends on X86 && INTEL_SOC_PMIC
137 Generic PWM framework driver for Crystalcove (CRC) PMIC based PWM
141 tristate "ChromeOS EC PWM driver"
142 depends on MFD_CROS_EC
144 PWM driver for exposing a PWM attached to the ChromeOS Embedded
148 tristate "Cirrus Logic EP93xx PWM support"
149 depends on ARCH_EP93XX
151 Generic PWM framework driver for Cirrus Logic EP93xx.
153 To compile this driver as a module, choose M here: the module
154 will be called pwm-ep93xx.
157 tristate "Freescale FlexTimer Module (FTM) PWM support"
161 Generic FTM PWM framework driver for Freescale VF610 and
162 Layerscape LS-1 SoCs.
164 To compile this driver as a module, choose M here: the module
165 will be called pwm-fsl-ftm.
168 tristate "Imagination Technologies PWM driver"
170 depends on MFD_SYSCON
171 depends on COMMON_CLK
172 depends on MIPS || COMPILE_TEST
174 Generic PWM framework driver for Imagination Technologies
175 PWM block which supports 4 channels.
177 To compile this driver as a module, choose M here: the module
178 will be called pwm-img
181 tristate "i.MX PWM support"
184 Generic PWM framework driver for i.MX.
186 To compile this driver as a module, choose M here: the module
187 will be called pwm-imx.
190 tristate "Ingenic JZ4740 PWM support"
191 depends on MACH_JZ4740
193 Generic PWM framework driver for Ingenic JZ4740 based
196 To compile this driver as a module, choose M here: the module
197 will be called pwm-jz4740.
200 tristate "TI/National Semiconductor LP3943 PWM support"
201 depends on MFD_LP3943
203 Generic PWM framework driver for LP3943 which supports two PWM
206 To compile this driver as a module, choose M here: the module
207 will be called pwm-lp3943.
209 config PWM_LPC18XX_SCT
210 tristate "LPC18xx/43xx PWM/SCT support"
211 depends on ARCH_LPC18XX
213 Generic PWM framework driver for NXP LPC18xx PWM/SCT which
214 supports 16 channels.
215 A maximum of 15 channels can be requested simultaneously and
216 must have the same period.
218 To compile this driver as a module, choose M here: the module
219 will be called pwm-lpc18xx-sct.
222 tristate "LPC32XX PWM support"
223 depends on ARCH_LPC32XX
225 Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
228 To compile this driver as a module, choose M here: the module
229 will be called pwm-lpc32xx.
232 tristate "Intel LPSS PWM support"
235 Generic PWM framework driver for Intel Low Power Subsystem PWM
238 To compile this driver as a module, choose M here: the module
239 will be called pwm-lpss.
242 tristate "Intel LPSS PWM PCI driver"
243 depends on PWM_LPSS && PCI
245 The PCI driver for Intel Low Power Subsystem PWM controller.
247 To compile this driver as a module, choose M here: the module
248 will be called pwm-lpss-pci.
250 config PWM_LPSS_PLATFORM
251 tristate "Intel LPSS PWM platform driver"
252 depends on PWM_LPSS && ACPI
254 The platform driver for Intel Low Power Subsystem PWM controller.
256 To compile this driver as a module, choose M here: the module
257 will be called pwm-lpss-platform.
260 tristate "MediaTek display PWM driver"
261 depends on ARCH_MEDIATEK || COMPILE_TEST
264 Generic PWM framework driver for MediaTek disp-pwm device.
265 The PWM is used to control the backlight brightness for display.
267 To compile this driver as a module, choose M here: the module
268 will be called pwm-mtk-disp.
271 tristate "Freescale MXS PWM support"
272 depends on ARCH_MXS && OF
275 Generic PWM framework driver for Freescale MXS.
277 To compile this driver as a module, choose M here: the module
278 will be called pwm-mxs.
281 tristate "NXP PCA9685 PWM driver"
285 Generic PWM framework driver for NXP PCA9685 LED controller.
287 To compile this driver as a module, choose M here: the module
288 will be called pwm-pca9685.
291 tristate "PKUnity NetBook-0916 PWM support"
294 Generic PWM framework driver for PKUnity NetBook-0916.
296 To compile this driver as a module, choose M here: the module
297 will be called pwm-puv3.
300 tristate "PXA PWM support"
303 Generic PWM framework driver for PXA.
305 To compile this driver as a module, choose M here: the module
306 will be called pwm-pxa.
309 tristate "Renesas R-Car PWM support"
310 depends on ARCH_RCAR_GEN1 || ARCH_RCAR_GEN2 || COMPILE_TEST
313 This driver exposes the PWM Timer controller found in Renesas
314 R-Car chips through the PWM API.
316 To compile this driver as a module, choose M here: the module
317 will be called pwm-rcar.
319 config PWM_RENESAS_TPU
320 tristate "Renesas TPU PWM support"
321 depends on ARCH_SHMOBILE || COMPILE_TEST
324 This driver exposes the Timer Pulse Unit (TPU) PWM controller found
325 in Renesas chips through the PWM API.
327 To compile this driver as a module, choose M here: the module
328 will be called pwm-renesas-tpu.
331 tristate "Rockchip PWM support"
332 depends on ARCH_ROCKCHIP
334 Generic PWM framework driver for the PWM controller found on
338 tristate "Samsung PWM support"
339 depends on PLAT_SAMSUNG || ARCH_EXYNOS
341 Generic PWM framework driver for Samsung.
343 To compile this driver as a module, choose M here: the module
344 will be called pwm-samsung.
347 tristate "STMicroelectronics SPEAr PWM support"
348 depends on PLAT_SPEAR
351 Generic PWM framework driver for the PWM controller on ST
354 To compile this driver as a module, choose M here: the module
355 will be called pwm-spear.
358 tristate "STiH4xx PWM support"
362 Generic PWM framework driver for STiH4xx SoCs.
364 To compile this driver as a module, choose M here: the module
365 will be called pwm-sti.
368 tristate "Allwinner PWM support"
369 depends on ARCH_SUNXI || COMPILE_TEST
370 depends on HAS_IOMEM && COMMON_CLK
372 Generic PWM framework driver for Allwinner SoCs.
374 To compile this driver as a module, choose M here: the module
375 will be called pwm-sun4i.
378 tristate "NVIDIA Tegra PWM support"
379 depends on ARCH_TEGRA
381 Generic PWM framework driver for the PWFM controller found on NVIDIA
384 To compile this driver as a module, choose M here: the module
385 will be called pwm-tegra.
388 tristate "ECAP PWM support"
389 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
391 PWM driver support for the ECAP APWM controller found on AM33XX
394 To compile this driver as a module, choose M here: the module
395 will be called pwm-tiecap.
398 tristate "EHRPWM PWM support"
399 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
401 PWM driver support for the EHRPWM controller found on AM33XX
404 To compile this driver as a module, choose M here: the module
405 will be called pwm-tiehrpwm.
409 default y if (ARCH_OMAP2PLUS) && (PWM_TIECAP || PWM_TIEHRPWM)
411 PWM Subsystem driver support for AM33xx SOC.
413 PWM submodules require PWM config space access from submodule
414 drivers and require common parent driver support.
417 tristate "TWL4030/6030 PWM support"
418 depends on TWL4030_CORE
420 Generic PWM framework driver for TWL4030/6030.
422 To compile this driver as a module, choose M here: the module
423 will be called pwm-twl.
426 tristate "TWL4030/6030 PWM support for LED drivers"
427 depends on TWL4030_CORE
429 Generic PWM framework driver for TWL4030/6030 LED terminals.
431 To compile this driver as a module, choose M here: the module
432 will be called pwm-twl-led.
435 tristate "vt8500 PWM support"
436 depends on ARCH_VT8500
438 Generic PWM framework driver for vt8500.
440 To compile this driver as a module, choose M here: the module
441 will be called pwm-vt8500.