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
93 Generic PWM framework driver for Broadcom Kona PWM block.
95 To compile this driver as a module, choose M here: the module
96 will be called pwm-bcm-kona.
99 tristate "BCM2835 PWM support"
100 depends on ARCH_BCM2835
102 PWM framework driver for BCM2835 controller (Raspberry Pi)
104 To compile this driver as a module, choose M here: the module
105 will be called pwm-bcm2835.
108 tristate "Marvell Berlin PWM support"
109 depends on ARCH_BERLIN
111 PWM framework driver for Marvell Berlin SoCs.
113 To compile this driver as a module, choose M here: the module
114 will be called pwm-berlin.
117 tristate "Broadcom STB PWM support"
118 depends on ARCH_BRCMSTB || BMIPS_GENERIC
120 Generic PWM framework driver for the Broadcom Set-top-Box
123 To compile this driver as a module, choose M Here: the module
124 will be called pwm-brcmstb.c.
127 tristate "CLPS711X PWM support"
128 depends on ARCH_CLPS711X || COMPILE_TEST
131 Generic PWM framework driver for Cirrus Logic CLPS711X.
133 To compile this driver as a module, choose M here: the module
134 will be called pwm-clps711x.
137 bool "Intel Crystalcove (CRC) PWM support"
138 depends on X86 && INTEL_SOC_PMIC
140 Generic PWM framework driver for Crystalcove (CRC) PMIC based PWM
144 tristate "ChromeOS EC PWM driver"
145 depends on MFD_CROS_EC
147 PWM driver for exposing a PWM attached to the ChromeOS Embedded
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 "HiSilicon BVT PWM support"
173 depends on ARCH_HISI || COMPILE_TEST
175 Generic PWM framework driver for HiSilicon BVT SoCs.
177 To compile this driver as a module, choose M here: the module
178 will be called pwm-hibvt.
181 tristate "Imagination Technologies PWM driver"
183 depends on MFD_SYSCON
184 depends on COMMON_CLK
185 depends on MIPS || COMPILE_TEST
187 Generic PWM framework driver for Imagination Technologies
188 PWM block which supports 4 channels.
190 To compile this driver as a module, choose M here: the module
191 will be called pwm-img
194 tristate "i.MX PWM support"
197 Generic PWM framework driver for i.MX.
199 To compile this driver as a module, choose M here: the module
200 will be called pwm-imx.
203 tristate "Ingenic JZ4740 PWM support"
204 depends on MACH_JZ4740
206 Generic PWM framework driver for Ingenic JZ4740 based
209 To compile this driver as a module, choose M here: the module
210 will be called pwm-jz4740.
213 tristate "TI/National Semiconductor LP3943 PWM support"
214 depends on MFD_LP3943
216 Generic PWM framework driver for LP3943 which supports two PWM
219 To compile this driver as a module, choose M here: the module
220 will be called pwm-lp3943.
222 config PWM_LPC18XX_SCT
223 tristate "LPC18xx/43xx PWM/SCT support"
224 depends on ARCH_LPC18XX
226 Generic PWM framework driver for NXP LPC18xx PWM/SCT which
227 supports 16 channels.
228 A maximum of 15 channels can be requested simultaneously and
229 must have the same period.
231 To compile this driver as a module, choose M here: the module
232 will be called pwm-lpc18xx-sct.
235 tristate "LPC32XX PWM support"
236 depends on ARCH_LPC32XX
238 Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
241 To compile this driver as a module, choose M here: the module
242 will be called pwm-lpc32xx.
248 tristate "Intel LPSS PWM PCI driver"
249 depends on X86 && PCI
252 The PCI driver for Intel Low Power Subsystem PWM controller.
254 To compile this driver as a module, choose M here: the module
255 will be called pwm-lpss-pci.
257 config PWM_LPSS_PLATFORM
258 tristate "Intel LPSS PWM platform driver"
259 depends on X86 && ACPI
262 The platform driver for Intel Low Power Subsystem PWM controller.
264 To compile this driver as a module, choose M here: the module
265 will be called pwm-lpss-platform.
268 tristate "Amlogic Meson PWM driver"
269 depends on ARCH_MESON
271 The platform driver for Amlogic Meson PWM controller.
273 To compile this driver as a module, choose M here: the module
274 will be called pwm-meson.
277 tristate "MediaTek display PWM driver"
278 depends on ARCH_MEDIATEK || COMPILE_TEST
281 Generic PWM framework driver for MediaTek disp-pwm device.
282 The PWM is used to control the backlight brightness for display.
284 To compile this driver as a module, choose M here: the module
285 will be called pwm-mtk-disp.
288 tristate "MediaTek PWM support"
289 depends on ARCH_MEDIATEK || COMPILE_TEST
291 Generic PWM framework driver for Mediatek ARM SoC.
293 To compile this driver as a module, choose M here: the module
294 will be called pwm-mediatek.
297 tristate "Freescale MXS PWM support"
298 depends on ARCH_MXS && OF
301 Generic PWM framework driver for Freescale MXS.
303 To compile this driver as a module, choose M here: the module
304 will be called pwm-mxs.
306 config PWM_OMAP_DMTIMER
307 tristate "OMAP Dual-Mode Timer PWM support"
308 depends on OF && ARCH_OMAP && OMAP_DM_TIMER
310 Generic PWM framework driver for OMAP Dual-Mode Timer PWM output
312 To compile this driver as a module, choose M here: the module
313 will be called pwm-omap-dmtimer
316 tristate "NXP PCA9685 PWM driver"
320 Generic PWM framework driver for NXP PCA9685 LED controller.
322 To compile this driver as a module, choose M here: the module
323 will be called pwm-pca9685.
326 tristate "PKUnity NetBook-0916 PWM support"
329 Generic PWM framework driver for PKUnity NetBook-0916.
331 To compile this driver as a module, choose M here: the module
332 will be called pwm-puv3.
335 tristate "PXA PWM support"
338 Generic PWM framework driver for PXA.
340 To compile this driver as a module, choose M here: the module
341 will be called pwm-pxa.
344 tristate "Renesas R-Car PWM support"
345 depends on ARCH_RENESAS || COMPILE_TEST
348 This driver exposes the PWM Timer controller found in Renesas
349 R-Car chips through the PWM API.
351 To compile this driver as a module, choose M here: the module
352 will be called pwm-rcar.
354 config PWM_RENESAS_TPU
355 tristate "Renesas TPU PWM support"
356 depends on ARCH_RENESAS || COMPILE_TEST
359 This driver exposes the Timer Pulse Unit (TPU) PWM controller found
360 in Renesas chips through the PWM API.
362 To compile this driver as a module, choose M here: the module
363 will be called pwm-renesas-tpu.
366 tristate "Rockchip PWM support"
367 depends on ARCH_ROCKCHIP
369 Generic PWM framework driver for the PWM controller found on
373 tristate "Samsung PWM support"
374 depends on PLAT_SAMSUNG || ARCH_EXYNOS
376 Generic PWM framework driver for Samsung.
378 To compile this driver as a module, choose M here: the module
379 will be called pwm-samsung.
382 tristate "STMicroelectronics SPEAr PWM support"
383 depends on PLAT_SPEAR
386 Generic PWM framework driver for the PWM controller on ST
389 To compile this driver as a module, choose M here: the module
390 will be called pwm-spear.
393 tristate "STiH4xx PWM support"
397 Generic PWM framework driver for STiH4xx SoCs.
399 To compile this driver as a module, choose M here: the module
400 will be called pwm-sti.
403 tristate "STMicroelectronics STM32 PWM"
404 depends on MFD_STM32_TIMERS || COMPILE_TEST
406 Generic PWM framework driver for STM32 SoCs.
408 To compile this driver as a module, choose M here: the module
409 will be called pwm-stm32.
412 tristate "STMicroelectronics STM32 PWM LP"
413 depends on MFD_STM32_LPTIMER || COMPILE_TEST
415 Generic PWM framework driver for STMicroelectronics STM32 SoCs
416 with Low-Power Timer (LPTIM).
418 To compile this driver as a module, choose M here: the module
419 will be called pwm-stm32-lp.
422 bool "STMPE expander PWM export"
425 This enables support for the PWMs found in the STMPE I/O
429 tristate "Allwinner PWM support"
430 depends on ARCH_SUNXI || COMPILE_TEST
431 depends on HAS_IOMEM && COMMON_CLK
433 Generic PWM framework driver for Allwinner SoCs.
435 To compile this driver as a module, choose M here: the module
436 will be called pwm-sun4i.
439 tristate "NVIDIA Tegra PWM support"
440 depends on ARCH_TEGRA
442 Generic PWM framework driver for the PWFM controller found on NVIDIA
445 To compile this driver as a module, choose M here: the module
446 will be called pwm-tegra.
449 tristate "ECAP PWM support"
450 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX || ARCH_KEYSTONE
452 PWM driver support for the ECAP APWM controller found on AM33XX
455 To compile this driver as a module, choose M here: the module
456 will be called pwm-tiecap.
459 tristate "EHRPWM PWM support"
460 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
462 PWM driver support for the EHRPWM controller found on AM33XX
465 To compile this driver as a module, choose M here: the module
466 will be called pwm-tiehrpwm.
470 default y if (ARCH_OMAP2PLUS) && (PWM_TIECAP || PWM_TIEHRPWM)
472 PWM Subsystem driver support for AM33xx SOC.
474 PWM submodules require PWM config space access from submodule
475 drivers and require common parent driver support.
478 tristate "TWL4030/6030 PWM support"
479 depends on TWL4030_CORE
481 Generic PWM framework driver for TWL4030/6030.
483 To compile this driver as a module, choose M here: the module
484 will be called pwm-twl.
487 tristate "TWL4030/6030 PWM support for LED drivers"
488 depends on TWL4030_CORE
490 Generic PWM framework driver for TWL4030/6030 LED terminals.
492 To compile this driver as a module, choose M here: the module
493 will be called pwm-twl-led.
496 tristate "vt8500 PWM support"
497 depends on ARCH_VT8500
499 Generic PWM framework driver for vt8500.
501 To compile this driver as a module, choose M here: the module
502 will be called pwm-vt8500.
505 tristate "ZTE ZX PWM support"
508 Generic PWM framework driver for ZTE ZX family SoCs.
510 To compile this driver as a module, choose M here: the module
511 will be called pwm-zx.