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 "Cirrus Logic EP93xx PWM support"
142 depends on ARCH_EP93XX
144 Generic PWM framework driver for Cirrus Logic EP93xx.
146 To compile this driver as a module, choose M here: the module
147 will be called pwm-ep93xx.
150 tristate "Freescale FlexTimer Module (FTM) PWM support"
154 Generic FTM PWM framework driver for Freescale VF610 and
155 Layerscape LS-1 SoCs.
157 To compile this driver as a module, choose M here: the module
158 will be called pwm-fsl-ftm.
161 tristate "Imagination Technologies PWM driver"
163 depends on MFD_SYSCON
164 depends on COMMON_CLK
165 depends on MIPS || COMPILE_TEST
167 Generic PWM framework driver for Imagination Technologies
168 PWM block which supports 4 channels.
170 To compile this driver as a module, choose M here: the module
171 will be called pwm-img
174 tristate "i.MX PWM support"
177 Generic PWM framework driver for i.MX.
179 To compile this driver as a module, choose M here: the module
180 will be called pwm-imx.
183 tristate "Ingenic JZ4740 PWM support"
184 depends on MACH_JZ4740
186 Generic PWM framework driver for Ingenic JZ4740 based
189 To compile this driver as a module, choose M here: the module
190 will be called pwm-jz4740.
193 tristate "TI/National Semiconductor LP3943 PWM support"
194 depends on MFD_LP3943
196 Generic PWM framework driver for LP3943 which supports two PWM
199 To compile this driver as a module, choose M here: the module
200 will be called pwm-lp3943.
202 config PWM_LPC18XX_SCT
203 tristate "LPC18xx/43xx PWM/SCT support"
204 depends on ARCH_LPC18XX
206 Generic PWM framework driver for NXP LPC18xx PWM/SCT which
207 supports 16 channels.
208 A maximum of 15 channels can be requested simultaneously and
209 must have the same period.
211 To compile this driver as a module, choose M here: the module
212 will be called pwm-lpc18xx-sct.
215 tristate "LPC32XX PWM support"
216 depends on ARCH_LPC32XX
218 Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
221 To compile this driver as a module, choose M here: the module
222 will be called pwm-lpc32xx.
225 tristate "Intel LPSS PWM support"
228 Generic PWM framework driver for Intel Low Power Subsystem PWM
231 To compile this driver as a module, choose M here: the module
232 will be called pwm-lpss.
235 tristate "Intel LPSS PWM PCI driver"
236 depends on PWM_LPSS && PCI
238 The PCI driver for Intel Low Power Subsystem PWM controller.
240 To compile this driver as a module, choose M here: the module
241 will be called pwm-lpss-pci.
243 config PWM_LPSS_PLATFORM
244 tristate "Intel LPSS PWM platform driver"
245 depends on PWM_LPSS && ACPI
247 The platform driver for Intel Low Power Subsystem PWM controller.
249 To compile this driver as a module, choose M here: the module
250 will be called pwm-lpss-platform.
253 tristate "Freescale MXS PWM support"
254 depends on ARCH_MXS && OF
257 Generic PWM framework driver for Freescale MXS.
259 To compile this driver as a module, choose M here: the module
260 will be called pwm-mxs.
263 tristate "NXP PCA9685 PWM driver"
267 Generic PWM framework driver for NXP PCA9685 LED controller.
269 To compile this driver as a module, choose M here: the module
270 will be called pwm-pca9685.
273 tristate "PKUnity NetBook-0916 PWM support"
276 Generic PWM framework driver for PKUnity NetBook-0916.
278 To compile this driver as a module, choose M here: the module
279 will be called pwm-puv3.
282 tristate "PXA PWM support"
285 Generic PWM framework driver for PXA.
287 To compile this driver as a module, choose M here: the module
288 will be called pwm-pxa.
291 tristate "Renesas R-Car PWM support"
292 depends on ARCH_RCAR_GEN1 || ARCH_RCAR_GEN2 || COMPILE_TEST
295 This driver exposes the PWM Timer controller found in Renesas
296 R-Car chips through the PWM API.
298 To compile this driver as a module, choose M here: the module
299 will be called pwm-rcar.
301 config PWM_RENESAS_TPU
302 tristate "Renesas TPU PWM support"
303 depends on ARCH_SHMOBILE || COMPILE_TEST
306 This driver exposes the Timer Pulse Unit (TPU) PWM controller found
307 in Renesas chips through the PWM API.
309 To compile this driver as a module, choose M here: the module
310 will be called pwm-renesas-tpu.
313 tristate "Rockchip PWM support"
314 depends on ARCH_ROCKCHIP
316 Generic PWM framework driver for the PWM controller found on
320 tristate "Samsung PWM support"
321 depends on PLAT_SAMSUNG || ARCH_EXYNOS
323 Generic PWM framework driver for Samsung.
325 To compile this driver as a module, choose M here: the module
326 will be called pwm-samsung.
329 tristate "STMicroelectronics SPEAr PWM support"
330 depends on PLAT_SPEAR
333 Generic PWM framework driver for the PWM controller on ST
336 To compile this driver as a module, choose M here: the module
337 will be called pwm-spear.
340 tristate "STiH4xx PWM support"
344 Generic PWM framework driver for STiH4xx SoCs.
346 To compile this driver as a module, choose M here: the module
347 will be called pwm-sti.
350 tristate "Allwinner PWM support"
351 depends on ARCH_SUNXI || COMPILE_TEST
352 depends on HAS_IOMEM && COMMON_CLK
354 Generic PWM framework driver for Allwinner SoCs.
356 To compile this driver as a module, choose M here: the module
357 will be called pwm-sun4i.
360 tristate "NVIDIA Tegra PWM support"
361 depends on ARCH_TEGRA
363 Generic PWM framework driver for the PWFM controller found on NVIDIA
366 To compile this driver as a module, choose M here: the module
367 will be called pwm-tegra.
370 tristate "ECAP PWM support"
371 depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
373 PWM driver support for the ECAP APWM controller found on AM33XX
376 To compile this driver as a module, choose M here: the module
377 will be called pwm-tiecap.
380 tristate "EHRPWM PWM support"
381 depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
383 PWM driver support for the EHRPWM controller found on AM33XX
386 To compile this driver as a module, choose M here: the module
387 will be called pwm-tiehrpwm.
391 default y if SOC_AM33XX && (PWM_TIECAP || PWM_TIEHRPWM)
393 PWM Subsystem driver support for AM33xx SOC.
395 PWM submodules require PWM config space access from submodule
396 drivers and require common parent driver support.
399 tristate "TWL4030/6030 PWM support"
400 depends on TWL4030_CORE
402 Generic PWM framework driver for TWL4030/6030.
404 To compile this driver as a module, choose M here: the module
405 will be called pwm-twl.
408 tristate "TWL4030/6030 PWM support for LED drivers"
409 depends on TWL4030_CORE
411 Generic PWM framework driver for TWL4030/6030 LED terminals.
413 To compile this driver as a module, choose M here: the module
414 will be called pwm-twl-led.
417 tristate "vt8500 PWM support"
418 depends on ARCH_VT8500
420 Generic PWM framework driver for vt8500.
422 To compile this driver as a module, choose M here: the module
423 will be called pwm-vt8500.