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.MX PWM support"
199 Generic PWM framework driver for i.MX.
201 To compile this driver as a module, choose M here: the module
202 will be called pwm-imx.
205 tristate "Ingenic JZ47xx PWM support"
206 depends on MACH_INGENIC
208 Generic PWM framework driver for Ingenic JZ47xx based
211 To compile this driver as a module, choose M here: the module
212 will be called pwm-jz4740.
215 tristate "TI/National Semiconductor LP3943 PWM support"
216 depends on MFD_LP3943
218 Generic PWM framework driver for LP3943 which supports two PWM
221 To compile this driver as a module, choose M here: the module
222 will be called pwm-lp3943.
224 config PWM_LPC18XX_SCT
225 tristate "LPC18xx/43xx PWM/SCT support"
226 depends on ARCH_LPC18XX
228 Generic PWM framework driver for NXP LPC18xx PWM/SCT which
229 supports 16 channels.
230 A maximum of 15 channels can be requested simultaneously and
231 must have the same period.
233 To compile this driver as a module, choose M here: the module
234 will be called pwm-lpc18xx-sct.
237 tristate "LPC32XX PWM support"
238 depends on ARCH_LPC32XX
240 Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
243 To compile this driver as a module, choose M here: the module
244 will be called pwm-lpc32xx.
250 tristate "Intel LPSS PWM PCI driver"
251 depends on X86 && PCI
254 The PCI 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-pci.
259 config PWM_LPSS_PLATFORM
260 tristate "Intel LPSS PWM platform driver"
261 depends on X86 && ACPI
264 The platform driver for Intel Low Power Subsystem PWM controller.
266 To compile this driver as a module, choose M here: the module
267 will be called pwm-lpss-platform.
270 tristate "Amlogic Meson PWM driver"
271 depends on ARCH_MESON
273 The platform driver for Amlogic Meson PWM controller.
275 To compile this driver as a module, choose M here: the module
276 will be called pwm-meson.
279 tristate "MediaTek display PWM driver"
280 depends on ARCH_MEDIATEK || COMPILE_TEST
283 Generic PWM framework driver for MediaTek disp-pwm device.
284 The PWM is used to control the backlight brightness for display.
286 To compile this driver as a module, choose M here: the module
287 will be called pwm-mtk-disp.
290 tristate "MediaTek PWM support"
291 depends on ARCH_MEDIATEK || RALINK || COMPILE_TEST
293 Generic PWM framework driver for Mediatek ARM SoC.
295 To compile this driver as a module, choose M here: the module
296 will be called pwm-mediatek.
299 tristate "Freescale MXS PWM support"
300 depends on ARCH_MXS && OF
303 Generic PWM framework driver for Freescale MXS.
305 To compile this driver as a module, choose M here: the module
306 will be called pwm-mxs.
308 config PWM_OMAP_DMTIMER
309 tristate "OMAP Dual-Mode Timer PWM support"
310 depends on OF && ARCH_OMAP && OMAP_DM_TIMER
312 Generic PWM framework driver for OMAP Dual-Mode Timer PWM output
314 To compile this driver as a module, choose M here: the module
315 will be called pwm-omap-dmtimer
318 tristate "NXP PCA9685 PWM driver"
322 Generic PWM framework driver for NXP PCA9685 LED controller.
324 To compile this driver as a module, choose M here: the module
325 will be called pwm-pca9685.
328 tristate "PKUnity NetBook-0916 PWM support"
331 Generic PWM framework driver for PKUnity NetBook-0916.
333 To compile this driver as a module, choose M here: the module
334 will be called pwm-puv3.
337 tristate "PXA PWM support"
340 Generic PWM framework driver for PXA.
342 To compile this driver as a module, choose M here: the module
343 will be called pwm-pxa.
346 tristate "Renesas R-Car PWM support"
347 depends on ARCH_RENESAS || COMPILE_TEST
350 This driver exposes the PWM Timer controller found in Renesas
351 R-Car chips through the PWM API.
353 To compile this driver as a module, choose M here: the module
354 will be called pwm-rcar.
356 config PWM_RENESAS_TPU
357 tristate "Renesas TPU PWM support"
358 depends on ARCH_RENESAS || COMPILE_TEST
361 This driver exposes the Timer Pulse Unit (TPU) PWM controller found
362 in Renesas chips through the PWM API.
364 To compile this driver as a module, choose M here: the module
365 will be called pwm-renesas-tpu.
368 tristate "Rockchip PWM support"
369 depends on ARCH_ROCKCHIP
371 Generic PWM framework driver for the PWM controller found on
375 tristate "Samsung PWM support"
376 depends on PLAT_SAMSUNG || ARCH_EXYNOS
378 Generic PWM framework driver for Samsung.
380 To compile this driver as a module, choose M here: the module
381 will be called pwm-samsung.
384 tristate "STMicroelectronics SPEAr PWM support"
385 depends on PLAT_SPEAR
388 Generic PWM framework driver for the PWM controller on ST
391 To compile this driver as a module, choose M here: the module
392 will be called pwm-spear.
395 tristate "STiH4xx PWM support"
399 Generic PWM framework driver for STiH4xx SoCs.
401 To compile this driver as a module, choose M here: the module
402 will be called pwm-sti.
405 tristate "STMicroelectronics STM32 PWM"
406 depends on MFD_STM32_TIMERS
408 Generic PWM framework driver for STM32 SoCs.
410 To compile this driver as a module, choose M here: the module
411 will be called pwm-stm32.
414 tristate "STMicroelectronics STM32 PWM LP"
415 depends on MFD_STM32_LPTIMER || COMPILE_TEST
417 Generic PWM framework driver for STMicroelectronics STM32 SoCs
418 with Low-Power Timer (LPTIM).
420 To compile this driver as a module, choose M here: the module
421 will be called pwm-stm32-lp.
424 bool "STMPE expander PWM export"
427 This enables support for the PWMs found in the STMPE I/O
431 tristate "Allwinner PWM support"
432 depends on ARCH_SUNXI || COMPILE_TEST
433 depends on HAS_IOMEM && COMMON_CLK
435 Generic PWM framework driver for Allwinner SoCs.
437 To compile this driver as a module, choose M here: the module
438 will be called pwm-sun4i.
441 tristate "NVIDIA Tegra PWM support"
442 depends on ARCH_TEGRA
444 Generic PWM framework driver for the PWFM controller found on NVIDIA
447 To compile this driver as a module, choose M here: the module
448 will be called pwm-tegra.
451 tristate "ECAP PWM support"
452 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX || ARCH_KEYSTONE || ARCH_K3
454 PWM driver support for the ECAP APWM controller found on TI SOCs
456 To compile this driver as a module, choose M here: the module
457 will be called pwm-tiecap.
460 tristate "EHRPWM PWM support"
461 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
463 PWM driver support for the EHRPWM controller found on AM33XX
466 To compile this driver as a module, choose M here: the module
467 will be called pwm-tiehrpwm.
471 default y if (ARCH_OMAP2PLUS) && (PWM_TIECAP || PWM_TIEHRPWM)
473 PWM Subsystem driver support for AM33xx SOC.
475 PWM submodules require PWM config space access from submodule
476 drivers and require common parent driver support.
479 tristate "TWL4030/6030 PWM support"
480 depends on TWL4030_CORE
482 Generic PWM framework driver for TWL4030/6030.
484 To compile this driver as a module, choose M here: the module
485 will be called pwm-twl.
488 tristate "TWL4030/6030 PWM support for LED drivers"
489 depends on TWL4030_CORE
491 Generic PWM framework driver for TWL4030/6030 LED terminals.
493 To compile this driver as a module, choose M here: the module
494 will be called pwm-twl-led.
497 tristate "vt8500 PWM support"
498 depends on ARCH_VT8500
500 Generic PWM framework driver for vt8500.
502 To compile this driver as a module, choose M here: the module
503 will be called pwm-vt8500.
506 tristate "ZTE ZX PWM support"
509 Generic PWM framework driver for ZTE ZX family SoCs.
511 To compile this driver as a module, choose M here: the module
512 will be called pwm-zx.