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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_IPROC
 78         tristate "iProc PWM support"
 79         depends on ARCH_BCM_IPROC
 80         help
 81           Generic PWM framework driver for Broadcom iProc PWM block. This
 82           block is used in Broadcom iProc SoC's.
 83 
 84           To compile this driver as a module, choose M here: the module
 85           will be called pwm-bcm-iproc.
 86 
 87 config PWM_BCM_KONA
 88         tristate "Kona PWM support"
 89         depends on ARCH_BCM_MOBILE
 90         help
 91           Generic PWM framework driver for Broadcom Kona PWM block.
 92 
 93           To compile this driver as a module, choose M here: the module
 94           will be called pwm-bcm-kona.
 95 
 96 config PWM_BCM2835
 97         tristate "BCM2835 PWM support"
 98         depends on ARCH_BCM2835
 99         help
100           PWM framework driver for BCM2835 controller (Raspberry Pi)
101 
102           To compile this driver as a module, choose M here: the module
103           will be called pwm-bcm2835.
104 
105 config PWM_BERLIN
106         tristate "Marvell Berlin PWM support"
107         depends on ARCH_BERLIN
108         help
109           PWM framework driver for Marvell Berlin SoCs.
110 
111           To compile this driver as a module, choose M here: the module
112           will be called pwm-berlin.
113 
114 config PWM_BFIN
115         tristate "Blackfin PWM support"
116         depends on BFIN_GPTIMERS
117         help
118           Generic PWM framework driver for Blackfin.
119 
120           To compile this driver as a module, choose M here: the module
121           will be called pwm-bfin.
122 
123 config PWM_BRCMSTB
124         tristate "Broadcom STB PWM support"
125         depends on ARCH_BRCMSTB || BMIPS_GENERIC
126         help
127           Generic PWM framework driver for the Broadcom Set-top-Box
128           SoCs (BCM7xxx).
129 
130           To compile this driver as a module, choose M Here: the module
131           will be called pwm-brcmstb.c.
132 
133 config PWM_CLPS711X
134         tristate "CLPS711X PWM support"
135         depends on ARCH_CLPS711X || COMPILE_TEST
136         depends on HAS_IOMEM
137         help
138           Generic PWM framework driver for Cirrus Logic CLPS711X.
139 
140           To compile this driver as a module, choose M here: the module
141           will be called pwm-clps711x.
142 
143 config PWM_CRC
144         bool "Intel Crystalcove (CRC) PWM support"
145         depends on X86 && INTEL_SOC_PMIC
146         help
147           Generic PWM framework driver for Crystalcove (CRC) PMIC based PWM
148           control.
149 
150 config PWM_CROS_EC
151         tristate "ChromeOS EC PWM driver"
152         depends on MFD_CROS_EC
153         help
154           PWM driver for exposing a PWM attached to the ChromeOS Embedded
155           Controller.
156 
157 config PWM_EP93XX
158         tristate "Cirrus Logic EP93xx PWM support"
159         depends on ARCH_EP93XX
160         help
161           Generic PWM framework driver for Cirrus Logic EP93xx.
162 
163           To compile this driver as a module, choose M here: the module
164           will be called pwm-ep93xx.
165 
166 config PWM_FSL_FTM
167         tristate "Freescale FlexTimer Module (FTM) PWM support"
168         depends on HAS_IOMEM
169         depends on OF
170         select REGMAP_MMIO
171         help
172           Generic FTM PWM framework driver for Freescale VF610 and
173           Layerscape LS-1 SoCs.
174 
175           To compile this driver as a module, choose M here: the module
176           will be called pwm-fsl-ftm.
177 
178 config PWM_HIBVT
179         tristate "HiSilicon BVT PWM support"
180         depends on ARCH_HISI || COMPILE_TEST
181         help
182           Generic PWM framework driver for HiSilicon BVT SoCs.
183 
184           To compile this driver as a module, choose M here: the module
185           will be called pwm-hibvt.
186 
187 config PWM_IMG
188         tristate "Imagination Technologies PWM driver"
189         depends on HAS_IOMEM
190         depends on MFD_SYSCON
191         depends on COMMON_CLK
192         depends on MIPS || COMPILE_TEST
193         help
194           Generic PWM framework driver for Imagination Technologies
195           PWM block which supports 4 channels.
196 
197           To compile this driver as a module, choose M here: the module
198           will be called pwm-img
199 
200 config PWM_IMX
201         tristate "i.MX PWM support"
202         depends on ARCH_MXC
203         help
204           Generic PWM framework driver for i.MX.
205 
206           To compile this driver as a module, choose M here: the module
207           will be called pwm-imx.
208 
209 config PWM_JZ4740
210         tristate "Ingenic JZ4740 PWM support"
211         depends on MACH_JZ4740
212         help
213           Generic PWM framework driver for Ingenic JZ4740 based
214           machines.
215 
216           To compile this driver as a module, choose M here: the module
217           will be called pwm-jz4740.
218 
219 config PWM_LP3943
220         tristate "TI/National Semiconductor LP3943 PWM support"
221         depends on MFD_LP3943
222         help
223           Generic PWM framework driver for LP3943 which supports two PWM
224           channels.
225 
226           To compile this driver as a module, choose M here: the module
227           will be called pwm-lp3943.
228 
229 config PWM_LPC18XX_SCT
230         tristate "LPC18xx/43xx PWM/SCT support"
231         depends on ARCH_LPC18XX
232         help
233           Generic PWM framework driver for NXP LPC18xx PWM/SCT which
234           supports 16 channels.
235           A maximum of 15 channels can be requested simultaneously and
236           must have the same period.
237 
238           To compile this driver as a module, choose M here: the module
239           will be called pwm-lpc18xx-sct.
240 
241 config PWM_LPC32XX
242         tristate "LPC32XX PWM support"
243         depends on ARCH_LPC32XX
244         help
245           Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
246           PWM controllers.
247 
248           To compile this driver as a module, choose M here: the module
249           will be called pwm-lpc32xx.
250 
251 config PWM_LPSS
252         tristate
253 
254 config PWM_LPSS_PCI
255         tristate "Intel LPSS PWM PCI driver"
256         depends on X86 && PCI
257         select PWM_LPSS
258         help
259           The PCI driver for Intel Low Power Subsystem PWM controller.
260 
261           To compile this driver as a module, choose M here: the module
262           will be called pwm-lpss-pci.
263 
264 config PWM_LPSS_PLATFORM
265         tristate "Intel LPSS PWM platform driver"
266         depends on X86 && ACPI
267         select PWM_LPSS
268         help
269           The platform driver for Intel Low Power Subsystem PWM controller.
270 
271           To compile this driver as a module, choose M here: the module
272           will be called pwm-lpss-platform.
273 
274 config PWM_MESON
275         tristate "Amlogic Meson PWM driver"
276         depends on ARCH_MESON
277         help
278           The platform driver for Amlogic Meson PWM controller.
279 
280           To compile this driver as a module, choose M here: the module
281           will be called pwm-meson.
282 
283 config PWM_MTK_DISP
284         tristate "MediaTek display PWM driver"
285         depends on ARCH_MEDIATEK || COMPILE_TEST
286         depends on HAS_IOMEM
287         help
288           Generic PWM framework driver for MediaTek disp-pwm device.
289           The PWM is used to control the backlight brightness for display.
290 
291           To compile this driver as a module, choose M here: the module
292           will be called pwm-mtk-disp.
293 
294 config PWM_MXS
295         tristate "Freescale MXS PWM support"
296         depends on ARCH_MXS && OF
297         select STMP_DEVICE
298         help
299           Generic PWM framework driver for Freescale MXS.
300 
301           To compile this driver as a module, choose M here: the module
302           will be called pwm-mxs.
303 
304 config PWM_OMAP_DMTIMER
305         tristate "OMAP Dual-Mode Timer PWM support"
306         depends on OF && ARCH_OMAP && OMAP_DM_TIMER
307         help
308           Generic PWM framework driver for OMAP Dual-Mode Timer PWM output
309 
310           To compile this driver as a module, choose M here: the module
311           will be called pwm-omap-dmtimer
312 
313 config PWM_PCA9685
314         tristate "NXP PCA9685 PWM driver"
315         depends on I2C
316         select REGMAP_I2C
317         help
318           Generic PWM framework driver for NXP PCA9685 LED controller.
319 
320           To compile this driver as a module, choose M here: the module
321           will be called pwm-pca9685.
322 
323 config PWM_PUV3
324         tristate "PKUnity NetBook-0916 PWM support"
325         depends on ARCH_PUV3
326         help
327           Generic PWM framework driver for PKUnity NetBook-0916.
328 
329           To compile this driver as a module, choose M here: the module
330           will be called pwm-puv3.
331 
332 config PWM_PXA
333         tristate "PXA PWM support"
334         depends on ARCH_PXA
335         help
336           Generic PWM framework driver for PXA.
337 
338           To compile this driver as a module, choose M here: the module
339           will be called pwm-pxa.
340 
341 config PWM_RCAR
342         tristate "Renesas R-Car PWM support"
343         depends on ARCH_RENESAS || COMPILE_TEST
344         depends on HAS_IOMEM
345         help
346           This driver exposes the PWM Timer controller found in Renesas
347           R-Car chips through the PWM API.
348 
349           To compile this driver as a module, choose M here: the module
350           will be called pwm-rcar.
351 
352 config PWM_RENESAS_TPU
353         tristate "Renesas TPU PWM support"
354         depends on ARCH_RENESAS || COMPILE_TEST
355         depends on HAS_IOMEM
356         help
357           This driver exposes the Timer Pulse Unit (TPU) PWM controller found
358           in Renesas chips through the PWM API.
359 
360           To compile this driver as a module, choose M here: the module
361           will be called pwm-renesas-tpu.
362 
363 config PWM_ROCKCHIP
364         tristate "Rockchip PWM support"
365         depends on ARCH_ROCKCHIP
366         help
367           Generic PWM framework driver for the PWM controller found on
368           Rockchip SoCs.
369 
370 config PWM_SAMSUNG
371         tristate "Samsung PWM support"
372         depends on PLAT_SAMSUNG || ARCH_EXYNOS
373         help
374           Generic PWM framework driver for Samsung.
375 
376           To compile this driver as a module, choose M here: the module
377           will be called pwm-samsung.
378 
379 config PWM_SPEAR
380         tristate "STMicroelectronics SPEAr PWM support"
381         depends on PLAT_SPEAR
382         depends on OF
383         help
384           Generic PWM framework driver for the PWM controller on ST
385           SPEAr SoCs.
386 
387           To compile this driver as a module, choose M here: the module
388           will be called pwm-spear.
389 
390 config PWM_STI
391         tristate "STiH4xx PWM support"
392         depends on ARCH_STI
393         depends on OF
394         help
395           Generic PWM framework driver for STiH4xx SoCs.
396 
397           To compile this driver as a module, choose M here: the module
398           will be called pwm-sti.
399 
400 config PWM_STMPE
401         bool "STMPE expander PWM export"
402         depends on MFD_STMPE
403         help
404           This enables support for the PWMs found in the STMPE I/O
405           expanders.
406 
407 config PWM_SUN4I
408         tristate "Allwinner PWM support"
409         depends on ARCH_SUNXI || COMPILE_TEST
410         depends on HAS_IOMEM && COMMON_CLK
411         help
412           Generic PWM framework driver for Allwinner SoCs.
413 
414           To compile this driver as a module, choose M here: the module
415           will be called pwm-sun4i.
416 
417 config PWM_TEGRA
418         tristate "NVIDIA Tegra PWM support"
419         depends on ARCH_TEGRA
420         help
421           Generic PWM framework driver for the PWFM controller found on NVIDIA
422           Tegra SoCs.
423 
424           To compile this driver as a module, choose M here: the module
425           will be called pwm-tegra.
426 
427 config  PWM_TIECAP
428         tristate "ECAP PWM support"
429         depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
430         help
431           PWM driver support for the ECAP APWM controller found on AM33XX
432           TI SOC
433 
434           To compile this driver as a module, choose M here: the module
435           will be called pwm-tiecap.
436 
437 config  PWM_TIEHRPWM
438         tristate "EHRPWM PWM support"
439         depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
440         help
441           PWM driver support for the EHRPWM controller found on AM33XX
442           TI SOC
443 
444           To compile this driver as a module, choose M here: the module
445           will be called pwm-tiehrpwm.
446 
447 config  PWM_TIPWMSS
448         bool
449         default y if (ARCH_OMAP2PLUS) && (PWM_TIECAP || PWM_TIEHRPWM)
450         help
451           PWM Subsystem driver support for AM33xx SOC.
452 
453           PWM submodules require PWM config space access from submodule
454           drivers and require common parent driver support.
455 
456 config PWM_TWL
457         tristate "TWL4030/6030 PWM support"
458         depends on TWL4030_CORE
459         help
460           Generic PWM framework driver for TWL4030/6030.
461 
462           To compile this driver as a module, choose M here: the module
463           will be called pwm-twl.
464 
465 config PWM_TWL_LED
466         tristate "TWL4030/6030 PWM support for LED drivers"
467         depends on TWL4030_CORE
468         help
469           Generic PWM framework driver for TWL4030/6030 LED terminals.
470 
471           To compile this driver as a module, choose M here: the module
472           will be called pwm-twl-led.
473 
474 config PWM_VT8500
475         tristate "vt8500 PWM support"
476         depends on ARCH_VT8500
477         help
478           Generic PWM framework driver for vt8500.
479 
480           To compile this driver as a module, choose M here: the module
481           will be called pwm-vt8500.
482 
483 endif

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