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Linux/drivers/pwm/Kconfig

  1 menuconfig PWM
  2         bool "Pulse-Width Modulation (PWM) Support"
  3         help
  4           Generic Pulse-Width Modulation (PWM) support.
  5 
  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
 11           display backlights.
 12 
 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.
 19 
 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.
 26 
 27           If unsure, say no.
 28 
 29 if PWM
 30 
 31 config PWM_SYSFS
 32         bool
 33         default y if SYSFS
 34 
 35 config PWM_AB8500
 36         tristate "AB8500 PWM support"
 37         depends on AB8500_CORE && ARCH_U8500
 38         help
 39           Generic PWM framework driver for Analog Baseband AB8500.
 40 
 41           To compile this driver as a module, choose M here: the module
 42           will be called pwm-ab8500.
 43 
 44 config PWM_ATMEL
 45         tristate "Atmel PWM support"
 46         depends on ARCH_AT91 || AVR32
 47         help
 48           Generic PWM framework driver for Atmel SoC.
 49 
 50           To compile this driver as a module, choose M here: the module
 51           will be called pwm-atmel.
 52 
 53 config PWM_ATMEL_HLCDC_PWM
 54         tristate "Atmel HLCDC PWM support"
 55         depends on MFD_ATMEL_HLCDC
 56         depends on HAVE_CLK
 57         help
 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.
 61 
 62           To compile this driver as a module, choose M here: the module
 63           will be called pwm-atmel-hlcdc.
 64 
 65 config PWM_ATMEL_TCB
 66         tristate "Atmel TC Block PWM support"
 67         depends on ATMEL_TCLIB && OF
 68         help
 69           Generic PWM framework driver for Atmel Timer Counter Block.
 70 
 71           A Timer Counter Block provides 6 PWM devices grouped by 2.
 72           Devices in a given group must have the same period.
 73 
 74           To compile this driver as a module, choose M here: the module
 75           will be called pwm-atmel-tcb.
 76 
 77 config PWM_BCM_KONA
 78         tristate "Kona PWM support"
 79         depends on ARCH_BCM_MOBILE
 80         help
 81           Generic PWM framework driver for Broadcom Kona PWM block.
 82 
 83           To compile this driver as a module, choose M here: the module
 84           will be called pwm-bcm-kona.
 85 
 86 config PWM_BCM2835
 87         tristate "BCM2835 PWM support"
 88         depends on ARCH_BCM2835
 89         help
 90           PWM framework driver for BCM2835 controller (Raspberry Pi)
 91 
 92           To compile this driver as a module, choose M here: the module
 93           will be called pwm-bcm2835.
 94 
 95 config PWM_BERLIN
 96         tristate "Marvell Berlin PWM support"
 97         depends on ARCH_BERLIN
 98         help
 99           PWM framework driver for Marvell Berlin SoCs.
100 
101           To compile this driver as a module, choose M here: the module
102           will be called pwm-berlin.
103 
104 config PWM_BFIN
105         tristate "Blackfin PWM support"
106         depends on BFIN_GPTIMERS
107         help
108           Generic PWM framework driver for Blackfin.
109 
110           To compile this driver as a module, choose M here: the module
111           will be called pwm-bfin.
112 
113 config PWM_BRCMSTB
114         tristate "Broadcom STB PWM support"
115         depends on ARCH_BRCMSTB || BMIPS_GENERIC
116         help
117           Generic PWM framework driver for the Broadcom Set-top-Box
118           SoCs (BCM7xxx).
119 
120           To compile this driver as a module, choose M Here: the module
121           will be called pwm-brcmstb.c.
122 
123 config PWM_CLPS711X
124         tristate "CLPS711X PWM support"
125         depends on ARCH_CLPS711X || COMPILE_TEST
126         depends on HAS_IOMEM
127         help
128           Generic PWM framework driver for Cirrus Logic CLPS711X.
129 
130           To compile this driver as a module, choose M here: the module
131           will be called pwm-clps711x.
132 
133 config PWM_CRC
134         bool "Intel Crystalcove (CRC) PWM support"
135         depends on X86 && INTEL_SOC_PMIC
136         help
137           Generic PWM framework driver for Crystalcove (CRC) PMIC based PWM
138           control.
139 
140 config PWM_EP93XX
141         tristate "Cirrus Logic EP93xx PWM support"
142         depends on ARCH_EP93XX
143         help
144           Generic PWM framework driver for Cirrus Logic EP93xx.
145 
146           To compile this driver as a module, choose M here: the module
147           will be called pwm-ep93xx.
148 
149 config PWM_FSL_FTM
150         tristate "Freescale FlexTimer Module (FTM) PWM support"
151         depends on HAS_IOMEM
152         depends on OF
153         select REGMAP_MMIO
154         help
155           Generic FTM PWM framework driver for Freescale VF610 and
156           Layerscape LS-1 SoCs.
157 
158           To compile this driver as a module, choose M here: the module
159           will be called pwm-fsl-ftm.
160 
161 config PWM_IMG
162         tristate "Imagination Technologies PWM driver"
163         depends on HAS_IOMEM
164         depends on MFD_SYSCON
165         depends on COMMON_CLK
166         depends on MIPS || COMPILE_TEST
167         help
168           Generic PWM framework driver for Imagination Technologies
169           PWM block which supports 4 channels.
170 
171           To compile this driver as a module, choose M here: the module
172           will be called pwm-img
173 
174 config PWM_IMX
175         tristate "i.MX PWM support"
176         depends on ARCH_MXC
177         help
178           Generic PWM framework driver for i.MX.
179 
180           To compile this driver as a module, choose M here: the module
181           will be called pwm-imx.
182 
183 config PWM_JZ4740
184         tristate "Ingenic JZ4740 PWM support"
185         depends on MACH_JZ4740
186         help
187           Generic PWM framework driver for Ingenic JZ4740 based
188           machines.
189 
190           To compile this driver as a module, choose M here: the module
191           will be called pwm-jz4740.
192 
193 config PWM_LP3943
194         tristate "TI/National Semiconductor LP3943 PWM support"
195         depends on MFD_LP3943
196         help
197           Generic PWM framework driver for LP3943 which supports two PWM
198           channels.
199 
200           To compile this driver as a module, choose M here: the module
201           will be called pwm-lp3943.
202 
203 config PWM_LPC18XX_SCT
204         tristate "LPC18xx/43xx PWM/SCT support"
205         depends on ARCH_LPC18XX
206         help
207           Generic PWM framework driver for NXP LPC18xx PWM/SCT which
208           supports 16 channels.
209           A maximum of 15 channels can be requested simultaneously and
210           must have the same period.
211 
212           To compile this driver as a module, choose M here: the module
213           will be called pwm-lpc18xx-sct.
214 
215 config PWM_LPC32XX
216         tristate "LPC32XX PWM support"
217         depends on ARCH_LPC32XX
218         help
219           Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
220           PWM controllers.
221 
222           To compile this driver as a module, choose M here: the module
223           will be called pwm-lpc32xx.
224 
225 config PWM_LPSS
226         tristate
227 
228 config PWM_LPSS_PCI
229         tristate "Intel LPSS PWM PCI driver"
230         depends on X86 && PCI
231         select PWM_LPSS
232         help
233           The PCI driver for Intel Low Power Subsystem PWM controller.
234 
235           To compile this driver as a module, choose M here: the module
236           will be called pwm-lpss-pci.
237 
238 config PWM_LPSS_PLATFORM
239         tristate "Intel LPSS PWM platform driver"
240         depends on X86 && ACPI
241         select PWM_LPSS
242         help
243           The platform driver for Intel Low Power Subsystem PWM controller.
244 
245           To compile this driver as a module, choose M here: the module
246           will be called pwm-lpss-platform.
247 
248 config PWM_MTK_DISP
249         tristate "MediaTek display PWM driver"
250         depends on ARCH_MEDIATEK || COMPILE_TEST
251         depends on HAS_IOMEM
252         help
253           Generic PWM framework driver for MediaTek disp-pwm device.
254           The PWM is used to control the backlight brightness for display.
255 
256           To compile this driver as a module, choose M here: the module
257           will be called pwm-mtk-disp.
258 
259 config PWM_MXS
260         tristate "Freescale MXS PWM support"
261         depends on ARCH_MXS && OF
262         select STMP_DEVICE
263         help
264           Generic PWM framework driver for Freescale MXS.
265 
266           To compile this driver as a module, choose M here: the module
267           will be called pwm-mxs.
268 
269 config PWM_OMAP_DMTIMER
270         tristate "OMAP Dual-Mode Timer PWM support"
271         depends on OF && ARCH_OMAP && OMAP_DM_TIMER
272         help
273           Generic PWM framework driver for OMAP Dual-Mode Timer PWM output
274 
275           To compile this driver as a module, choose M here: the module
276           will be called pwm-omap-dmtimer
277 
278 config PWM_PCA9685
279         tristate "NXP PCA9685 PWM driver"
280         depends on I2C
281         select REGMAP_I2C
282         help
283           Generic PWM framework driver for NXP PCA9685 LED controller.
284 
285           To compile this driver as a module, choose M here: the module
286           will be called pwm-pca9685.
287 
288 config PWM_PUV3
289         tristate "PKUnity NetBook-0916 PWM support"
290         depends on ARCH_PUV3
291         help
292           Generic PWM framework driver for PKUnity NetBook-0916.
293 
294           To compile this driver as a module, choose M here: the module
295           will be called pwm-puv3.
296 
297 config PWM_PXA
298         tristate "PXA PWM support"
299         depends on ARCH_PXA
300         help
301           Generic PWM framework driver for PXA.
302 
303           To compile this driver as a module, choose M here: the module
304           will be called pwm-pxa.
305 
306 config PWM_RCAR
307         tristate "Renesas R-Car PWM support"
308         depends on ARCH_RCAR_GEN1 || ARCH_RCAR_GEN2 || COMPILE_TEST
309         depends on HAS_IOMEM
310         help
311           This driver exposes the PWM Timer controller found in Renesas
312           R-Car chips through the PWM API.
313 
314           To compile this driver as a module, choose M here: the module
315           will be called pwm-rcar.
316 
317 config PWM_RENESAS_TPU
318         tristate "Renesas TPU PWM support"
319         depends on ARCH_RENESAS || COMPILE_TEST
320         depends on HAS_IOMEM
321         help
322           This driver exposes the Timer Pulse Unit (TPU) PWM controller found
323           in Renesas chips through the PWM API.
324 
325           To compile this driver as a module, choose M here: the module
326           will be called pwm-renesas-tpu.
327 
328 config PWM_ROCKCHIP
329         tristate "Rockchip PWM support"
330         depends on ARCH_ROCKCHIP
331         help
332           Generic PWM framework driver for the PWM controller found on
333           Rockchip SoCs.
334 
335 config PWM_SAMSUNG
336         tristate "Samsung PWM support"
337         depends on PLAT_SAMSUNG || ARCH_EXYNOS
338         help
339           Generic PWM framework driver for Samsung.
340 
341           To compile this driver as a module, choose M here: the module
342           will be called pwm-samsung.
343 
344 config PWM_SPEAR
345         tristate "STMicroelectronics SPEAr PWM support"
346         depends on PLAT_SPEAR
347         depends on OF
348         help
349           Generic PWM framework driver for the PWM controller on ST
350           SPEAr SoCs.
351 
352           To compile this driver as a module, choose M here: the module
353           will be called pwm-spear.
354 
355 config PWM_STI
356         tristate "STiH4xx PWM support"
357         depends on ARCH_STI
358         depends on OF
359         help
360           Generic PWM framework driver for STiH4xx SoCs.
361 
362           To compile this driver as a module, choose M here: the module
363           will be called pwm-sti.
364 
365 config PWM_SUN4I
366         tristate "Allwinner PWM support"
367         depends on ARCH_SUNXI || COMPILE_TEST
368         depends on HAS_IOMEM && COMMON_CLK
369         help
370           Generic PWM framework driver for Allwinner SoCs.
371 
372           To compile this driver as a module, choose M here: the module
373           will be called pwm-sun4i.
374 
375 config PWM_TEGRA
376         tristate "NVIDIA Tegra PWM support"
377         depends on ARCH_TEGRA
378         help
379           Generic PWM framework driver for the PWFM controller found on NVIDIA
380           Tegra SoCs.
381 
382           To compile this driver as a module, choose M here: the module
383           will be called pwm-tegra.
384 
385 config  PWM_TIECAP
386         tristate "ECAP PWM support"
387         depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
388         help
389           PWM driver support for the ECAP APWM controller found on AM33XX
390           TI SOC
391 
392           To compile this driver as a module, choose M here: the module
393           will be called pwm-tiecap.
394 
395 config  PWM_TIEHRPWM
396         tristate "EHRPWM PWM support"
397         depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
398         help
399           PWM driver support for the EHRPWM controller found on AM33XX
400           TI SOC
401 
402           To compile this driver as a module, choose M here: the module
403           will be called pwm-tiehrpwm.
404 
405 config  PWM_TIPWMSS
406         bool
407         default y if (ARCH_OMAP2PLUS) && (PWM_TIECAP || PWM_TIEHRPWM)
408         help
409           PWM Subsystem driver support for AM33xx SOC.
410 
411           PWM submodules require PWM config space access from submodule
412           drivers and require common parent driver support.
413 
414 config PWM_TWL
415         tristate "TWL4030/6030 PWM support"
416         depends on TWL4030_CORE
417         help
418           Generic PWM framework driver for TWL4030/6030.
419 
420           To compile this driver as a module, choose M here: the module
421           will be called pwm-twl.
422 
423 config PWM_TWL_LED
424         tristate "TWL4030/6030 PWM support for LED drivers"
425         depends on TWL4030_CORE
426         help
427           Generic PWM framework driver for TWL4030/6030 LED terminals.
428 
429           To compile this driver as a module, choose M here: the module
430           will be called pwm-twl-led.
431 
432 config PWM_VT8500
433         tristate "vt8500 PWM support"
434         depends on ARCH_VT8500
435         help
436           Generic PWM framework driver for vt8500.
437 
438           To compile this driver as a module, choose M here: the module
439           will be called pwm-vt8500.
440 
441 endif

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