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 "MediaTek display PWM driver"
254 depends on ARCH_MEDIATEK || COMPILE_TEST
257 Generic PWM framework driver for MediaTek disp-pwm device.
258 The PWM is used to control the backlight brightness for display.
260 To compile this driver as a module, choose M here: the module
261 will be called pwm-mtk-disp.
264 tristate "Freescale MXS PWM support"
265 depends on ARCH_MXS && OF
268 Generic PWM framework driver for Freescale MXS.
270 To compile this driver as a module, choose M here: the module
271 will be called pwm-mxs.
274 tristate "NXP PCA9685 PWM driver"
278 Generic PWM framework driver for NXP PCA9685 LED controller.
280 To compile this driver as a module, choose M here: the module
281 will be called pwm-pca9685.
284 tristate "PKUnity NetBook-0916 PWM support"
287 Generic PWM framework driver for PKUnity NetBook-0916.
289 To compile this driver as a module, choose M here: the module
290 will be called pwm-puv3.
293 tristate "PXA PWM support"
296 Generic PWM framework driver for PXA.
298 To compile this driver as a module, choose M here: the module
299 will be called pwm-pxa.
302 tristate "Renesas R-Car PWM support"
303 depends on ARCH_RCAR_GEN1 || ARCH_RCAR_GEN2 || COMPILE_TEST
306 This driver exposes the PWM Timer controller found in Renesas
307 R-Car chips through the PWM API.
309 To compile this driver as a module, choose M here: the module
310 will be called pwm-rcar.
312 config PWM_RENESAS_TPU
313 tristate "Renesas TPU PWM support"
314 depends on ARCH_SHMOBILE || COMPILE_TEST
317 This driver exposes the Timer Pulse Unit (TPU) PWM controller found
318 in Renesas chips through the PWM API.
320 To compile this driver as a module, choose M here: the module
321 will be called pwm-renesas-tpu.
324 tristate "Rockchip PWM support"
325 depends on ARCH_ROCKCHIP
327 Generic PWM framework driver for the PWM controller found on
331 tristate "Samsung PWM support"
332 depends on PLAT_SAMSUNG || ARCH_EXYNOS
334 Generic PWM framework driver for Samsung.
336 To compile this driver as a module, choose M here: the module
337 will be called pwm-samsung.
340 tristate "STMicroelectronics SPEAr PWM support"
341 depends on PLAT_SPEAR
344 Generic PWM framework driver for the PWM controller on ST
347 To compile this driver as a module, choose M here: the module
348 will be called pwm-spear.
351 tristate "STiH4xx PWM support"
355 Generic PWM framework driver for STiH4xx SoCs.
357 To compile this driver as a module, choose M here: the module
358 will be called pwm-sti.
361 tristate "Allwinner PWM support"
362 depends on ARCH_SUNXI || COMPILE_TEST
363 depends on HAS_IOMEM && COMMON_CLK
365 Generic PWM framework driver for Allwinner SoCs.
367 To compile this driver as a module, choose M here: the module
368 will be called pwm-sun4i.
371 tristate "NVIDIA Tegra PWM support"
372 depends on ARCH_TEGRA
374 Generic PWM framework driver for the PWFM controller found on NVIDIA
377 To compile this driver as a module, choose M here: the module
378 will be called pwm-tegra.
381 tristate "ECAP PWM support"
382 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
384 PWM driver support for the ECAP APWM controller found on AM33XX
387 To compile this driver as a module, choose M here: the module
388 will be called pwm-tiecap.
391 tristate "EHRPWM PWM support"
392 depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
394 PWM driver support for the EHRPWM controller found on AM33XX
397 To compile this driver as a module, choose M here: the module
398 will be called pwm-tiehrpwm.
402 default y if (ARCH_OMAP2PLUS) && (PWM_TIECAP || PWM_TIEHRPWM)
404 PWM Subsystem driver support for AM33xx SOC.
406 PWM submodules require PWM config space access from submodule
407 drivers and require common parent driver support.
410 tristate "TWL4030/6030 PWM support"
411 depends on TWL4030_CORE
413 Generic PWM framework driver for TWL4030/6030.
415 To compile this driver as a module, choose M here: the module
416 will be called pwm-twl.
419 tristate "TWL4030/6030 PWM support for LED drivers"
420 depends on TWL4030_CORE
422 Generic PWM framework driver for TWL4030/6030 LED terminals.
424 To compile this driver as a module, choose M here: the module
425 will be called pwm-twl-led.
428 tristate "vt8500 PWM support"
429 depends on ARCH_VT8500
431 Generic PWM framework driver for vt8500.
433 To compile this driver as a module, choose M here: the module
434 will be called pwm-vt8500.