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 "i.MX TPM PWM support"
215 depends on ARCH_MXC || COMPILE_TEST
216 depends on HAVE_CLK && HAS_IOMEM
218 Generic PWM framework driver for i.MX7ULP TPM module, TPM's full
219 name is Low Power Timer/Pulse Width Modulation Module.
221 To compile this driver as a module, choose M here: the module
222 will be called pwm-imx-tpm.
225 tristate "Ingenic JZ47xx PWM support"
226 depends on MACH_INGENIC
228 Generic PWM framework driver for Ingenic JZ47xx based
231 To compile this driver as a module, choose M here: the module
232 will be called pwm-jz4740.
235 tristate "TI/National Semiconductor LP3943 PWM support"
236 depends on MFD_LP3943
238 Generic PWM framework driver for LP3943 which supports two PWM
241 To compile this driver as a module, choose M here: the module
242 will be called pwm-lp3943.
244 config PWM_LPC18XX_SCT
245 tristate "LPC18xx/43xx PWM/SCT support"
246 depends on ARCH_LPC18XX
248 Generic PWM framework driver for NXP LPC18xx PWM/SCT which
249 supports 16 channels.
250 A maximum of 15 channels can be requested simultaneously and
251 must have the same period.
253 To compile this driver as a module, choose M here: the module
254 will be called pwm-lpc18xx-sct.
257 tristate "LPC32XX PWM support"
258 depends on ARCH_LPC32XX
260 Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
263 To compile this driver as a module, choose M here: the module
264 will be called pwm-lpc32xx.
270 tristate "Intel LPSS PWM PCI driver"
271 depends on X86 && PCI
274 The PCI driver for Intel Low Power Subsystem PWM controller.
276 To compile this driver as a module, choose M here: the module
277 will be called pwm-lpss-pci.
279 config PWM_LPSS_PLATFORM
280 tristate "Intel LPSS PWM platform driver"
281 depends on X86 && ACPI
284 The platform driver for Intel Low Power Subsystem PWM controller.
286 To compile this driver as a module, choose M here: the module
287 will be called pwm-lpss-platform.
290 tristate "Amlogic Meson PWM driver"
291 depends on ARCH_MESON
293 The platform driver for Amlogic Meson PWM controller.
295 To compile this driver as a module, choose M here: the module
296 will be called pwm-meson.
299 tristate "MediaTek display PWM driver"
300 depends on ARCH_MEDIATEK || COMPILE_TEST
303 Generic PWM framework driver for MediaTek disp-pwm device.
304 The PWM is used to control the backlight brightness for display.
306 To compile this driver as a module, choose M here: the module
307 will be called pwm-mtk-disp.
310 tristate "MediaTek PWM support"
311 depends on ARCH_MEDIATEK || RALINK || COMPILE_TEST
313 Generic PWM framework driver for Mediatek ARM SoC.
315 To compile this driver as a module, choose M here: the module
316 will be called pwm-mediatek.
319 tristate "Freescale MXS PWM support"
320 depends on ARCH_MXS && OF
323 Generic PWM framework driver for Freescale MXS.
325 To compile this driver as a module, choose M here: the module
326 will be called pwm-mxs.
328 config PWM_OMAP_DMTIMER
329 tristate "OMAP Dual-Mode Timer PWM support"
330 depends on OF && ARCH_OMAP && OMAP_DM_TIMER
332 Generic PWM framework driver for OMAP Dual-Mode Timer PWM output
334 To compile this driver as a module, choose M here: the module
335 will be called pwm-omap-dmtimer
338 tristate "NXP PCA9685 PWM driver"
342 Generic PWM framework driver for NXP PCA9685 LED controller.
344 To compile this driver as a module, choose M here: the module
345 will be called pwm-pca9685.
348 tristate "PKUnity NetBook-0916 PWM support"
351 Generic PWM framework driver for PKUnity NetBook-0916.
353 To compile this driver as a module, choose M here: the module
354 will be called pwm-puv3.
357 tristate "PXA PWM support"
360 Generic PWM framework driver for PXA.
362 To compile this driver as a module, choose M here: the module
363 will be called pwm-pxa.
366 tristate "Renesas R-Car PWM support"
367 depends on ARCH_RENESAS || COMPILE_TEST
370 This driver exposes the PWM Timer controller found in Renesas
371 R-Car chips through the PWM API.
373 To compile this driver as a module, choose M here: the module
374 will be called pwm-rcar.
376 config PWM_RENESAS_TPU
377 tristate "Renesas TPU PWM support"
378 depends on ARCH_RENESAS || COMPILE_TEST
381 This driver exposes the Timer Pulse Unit (TPU) PWM controller found
382 in Renesas chips through the PWM API.
384 To compile this driver as a module, choose M here: the module
385 will be called pwm-renesas-tpu.
388 tristate "Rockchip PWM support"
389 depends on ARCH_ROCKCHIP
391 Generic PWM framework driver for the PWM controller found on
395 tristate "Samsung PWM support"
396 depends on PLAT_SAMSUNG || ARCH_EXYNOS
398 Generic PWM framework driver for Samsung.
400 To compile this driver as a module, choose M here: the module
401 will be called pwm-samsung.
404 tristate "STMicroelectronics SPEAr PWM support"
405 depends on PLAT_SPEAR
408 Generic PWM framework driver for the PWM controller on ST
411 To compile this driver as a module, choose M here: the module
412 will be called pwm-spear.
415 tristate "STiH4xx PWM support"
419 Generic PWM framework driver for STiH4xx SoCs.
421 To compile this driver as a module, choose M here: the module
422 will be called pwm-sti.
425 tristate "STMicroelectronics STM32 PWM"
426 depends on MFD_STM32_TIMERS
428 Generic PWM framework driver for STM32 SoCs.
430 To compile this driver as a module, choose M here: the module
431 will be called pwm-stm32.
434 tristate "STMicroelectronics STM32 PWM LP"
435 depends on MFD_STM32_LPTIMER || COMPILE_TEST
437 Generic PWM framework driver for STMicroelectronics STM32 SoCs
438 with Low-Power Timer (LPTIM).
440 To compile this driver as a module, choose M here: the module
441 will be called pwm-stm32-lp.
444 bool "STMPE expander PWM export"
447 This enables support for the PWMs found in the STMPE I/O
451 tristate "Allwinner PWM support"
452 depends on ARCH_SUNXI || COMPILE_TEST
453 depends on HAS_IOMEM && COMMON_CLK
455 Generic PWM framework driver for Allwinner SoCs.
457 To compile this driver as a module, choose M here: the module
458 will be called pwm-sun4i.
461 tristate "NVIDIA Tegra PWM support"
462 depends on ARCH_TEGRA
464 Generic PWM framework driver for the PWFM controller found on NVIDIA
467 To compile this driver as a module, choose M here: the module
468 will be called pwm-tegra.
471 tristate "ECAP PWM support"
472 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX || ARCH_KEYSTONE || ARCH_K3
474 PWM driver support for the ECAP APWM controller found on TI SOCs
476 To compile this driver as a module, choose M here: the module
477 will be called pwm-tiecap.
480 tristate "EHRPWM PWM support"
481 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX || ARCH_K3
483 PWM driver support for the EHRPWM controller found on TI SOCs
485 To compile this driver as a module, choose M here: the module
486 will be called pwm-tiehrpwm.
490 default y if (ARCH_OMAP2PLUS) && (PWM_TIECAP || PWM_TIEHRPWM)
492 PWM Subsystem driver support for AM33xx SOC.
494 PWM submodules require PWM config space access from submodule
495 drivers and require common parent driver support.
498 tristate "TWL4030/6030 PWM support"
499 depends on TWL4030_CORE
501 Generic PWM framework driver for TWL4030/6030.
503 To compile this driver as a module, choose M here: the module
504 will be called pwm-twl.
507 tristate "TWL4030/6030 PWM support for LED drivers"
508 depends on TWL4030_CORE
510 Generic PWM framework driver for TWL4030/6030 LED terminals.
512 To compile this driver as a module, choose M here: the module
513 will be called pwm-twl-led.
516 tristate "vt8500 PWM support"
517 depends on ARCH_VT8500
519 Generic PWM framework driver for vt8500.
521 To compile this driver as a module, choose M here: the module
522 will be called pwm-vt8500.
525 tristate "ZTE ZX PWM support"
528 Generic PWM framework driver for ZTE ZX family SoCs.
530 To compile this driver as a module, choose M here: the module
531 will be called pwm-zx.