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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_IMG
179         tristate "Imagination Technologies PWM driver"
180         depends on HAS_IOMEM
181         depends on MFD_SYSCON
182         depends on COMMON_CLK
183         depends on MIPS || COMPILE_TEST
184         help
185           Generic PWM framework driver for Imagination Technologies
186           PWM block which supports 4 channels.
187 
188           To compile this driver as a module, choose M here: the module
189           will be called pwm-img
190 
191 config PWM_IMX
192         tristate "i.MX PWM support"
193         depends on ARCH_MXC
194         help
195           Generic PWM framework driver for i.MX.
196 
197           To compile this driver as a module, choose M here: the module
198           will be called pwm-imx.
199 
200 config PWM_JZ4740
201         tristate "Ingenic JZ4740 PWM support"
202         depends on MACH_JZ4740
203         help
204           Generic PWM framework driver for Ingenic JZ4740 based
205           machines.
206 
207           To compile this driver as a module, choose M here: the module
208           will be called pwm-jz4740.
209 
210 config PWM_LP3943
211         tristate "TI/National Semiconductor LP3943 PWM support"
212         depends on MFD_LP3943
213         help
214           Generic PWM framework driver for LP3943 which supports two PWM
215           channels.
216 
217           To compile this driver as a module, choose M here: the module
218           will be called pwm-lp3943.
219 
220 config PWM_LPC18XX_SCT
221         tristate "LPC18xx/43xx PWM/SCT support"
222         depends on ARCH_LPC18XX
223         help
224           Generic PWM framework driver for NXP LPC18xx PWM/SCT which
225           supports 16 channels.
226           A maximum of 15 channels can be requested simultaneously and
227           must have the same period.
228 
229           To compile this driver as a module, choose M here: the module
230           will be called pwm-lpc18xx-sct.
231 
232 config PWM_LPC32XX
233         tristate "LPC32XX PWM support"
234         depends on ARCH_LPC32XX
235         help
236           Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
237           PWM controllers.
238 
239           To compile this driver as a module, choose M here: the module
240           will be called pwm-lpc32xx.
241 
242 config PWM_LPSS
243         tristate
244 
245 config PWM_LPSS_PCI
246         tristate "Intel LPSS PWM PCI driver"
247         depends on X86 && PCI
248         select PWM_LPSS
249         help
250           The PCI driver for Intel Low Power Subsystem PWM controller.
251 
252           To compile this driver as a module, choose M here: the module
253           will be called pwm-lpss-pci.
254 
255 config PWM_LPSS_PLATFORM
256         tristate "Intel LPSS PWM platform driver"
257         depends on X86 && ACPI
258         select PWM_LPSS
259         help
260           The platform driver for Intel Low Power Subsystem PWM controller.
261 
262           To compile this driver as a module, choose M here: the module
263           will be called pwm-lpss-platform.
264 
265 config PWM_MESON
266         tristate "Amlogic Meson PWM driver"
267         depends on ARCH_MESON
268         help
269           The platform driver for Amlogic Meson PWM controller.
270 
271           To compile this driver as a module, choose M here: the module
272           will be called pwm-meson.
273 
274 config PWM_MTK_DISP
275         tristate "MediaTek display PWM driver"
276         depends on ARCH_MEDIATEK || COMPILE_TEST
277         depends on HAS_IOMEM
278         help
279           Generic PWM framework driver for MediaTek disp-pwm device.
280           The PWM is used to control the backlight brightness for display.
281 
282           To compile this driver as a module, choose M here: the module
283           will be called pwm-mtk-disp.
284 
285 config PWM_MXS
286         tristate "Freescale MXS PWM support"
287         depends on ARCH_MXS && OF
288         select STMP_DEVICE
289         help
290           Generic PWM framework driver for Freescale MXS.
291 
292           To compile this driver as a module, choose M here: the module
293           will be called pwm-mxs.
294 
295 config PWM_OMAP_DMTIMER
296         tristate "OMAP Dual-Mode Timer PWM support"
297         depends on OF && ARCH_OMAP && OMAP_DM_TIMER
298         help
299           Generic PWM framework driver for OMAP Dual-Mode Timer PWM output
300 
301           To compile this driver as a module, choose M here: the module
302           will be called pwm-omap-dmtimer
303 
304 config PWM_PCA9685
305         tristate "NXP PCA9685 PWM driver"
306         depends on I2C
307         select REGMAP_I2C
308         help
309           Generic PWM framework driver for NXP PCA9685 LED controller.
310 
311           To compile this driver as a module, choose M here: the module
312           will be called pwm-pca9685.
313 
314 config PWM_PUV3
315         tristate "PKUnity NetBook-0916 PWM support"
316         depends on ARCH_PUV3
317         help
318           Generic PWM framework driver for PKUnity NetBook-0916.
319 
320           To compile this driver as a module, choose M here: the module
321           will be called pwm-puv3.
322 
323 config PWM_PXA
324         tristate "PXA PWM support"
325         depends on ARCH_PXA
326         help
327           Generic PWM framework driver for PXA.
328 
329           To compile this driver as a module, choose M here: the module
330           will be called pwm-pxa.
331 
332 config PWM_RCAR
333         tristate "Renesas R-Car PWM support"
334         depends on ARCH_RENESAS || COMPILE_TEST
335         depends on HAS_IOMEM
336         help
337           This driver exposes the PWM Timer controller found in Renesas
338           R-Car chips through the PWM API.
339 
340           To compile this driver as a module, choose M here: the module
341           will be called pwm-rcar.
342 
343 config PWM_RENESAS_TPU
344         tristate "Renesas TPU PWM support"
345         depends on ARCH_RENESAS || COMPILE_TEST
346         depends on HAS_IOMEM
347         help
348           This driver exposes the Timer Pulse Unit (TPU) PWM controller found
349           in Renesas chips through the PWM API.
350 
351           To compile this driver as a module, choose M here: the module
352           will be called pwm-renesas-tpu.
353 
354 config PWM_ROCKCHIP
355         tristate "Rockchip PWM support"
356         depends on ARCH_ROCKCHIP
357         help
358           Generic PWM framework driver for the PWM controller found on
359           Rockchip SoCs.
360 
361 config PWM_SAMSUNG
362         tristate "Samsung PWM support"
363         depends on PLAT_SAMSUNG || ARCH_EXYNOS
364         help
365           Generic PWM framework driver for Samsung.
366 
367           To compile this driver as a module, choose M here: the module
368           will be called pwm-samsung.
369 
370 config PWM_SPEAR
371         tristate "STMicroelectronics SPEAr PWM support"
372         depends on PLAT_SPEAR
373         depends on OF
374         help
375           Generic PWM framework driver for the PWM controller on ST
376           SPEAr SoCs.
377 
378           To compile this driver as a module, choose M here: the module
379           will be called pwm-spear.
380 
381 config PWM_STI
382         tristate "STiH4xx PWM support"
383         depends on ARCH_STI
384         depends on OF
385         help
386           Generic PWM framework driver for STiH4xx SoCs.
387 
388           To compile this driver as a module, choose M here: the module
389           will be called pwm-sti.
390 
391 config PWM_STMPE
392         bool "STMPE expander PWM export"
393         depends on MFD_STMPE
394         help
395           This enables support for the PWMs found in the STMPE I/O
396           expanders.
397 
398 config PWM_SUN4I
399         tristate "Allwinner PWM support"
400         depends on ARCH_SUNXI || COMPILE_TEST
401         depends on HAS_IOMEM && COMMON_CLK
402         help
403           Generic PWM framework driver for Allwinner SoCs.
404 
405           To compile this driver as a module, choose M here: the module
406           will be called pwm-sun4i.
407 
408 config PWM_TEGRA
409         tristate "NVIDIA Tegra PWM support"
410         depends on ARCH_TEGRA
411         help
412           Generic PWM framework driver for the PWFM controller found on NVIDIA
413           Tegra SoCs.
414 
415           To compile this driver as a module, choose M here: the module
416           will be called pwm-tegra.
417 
418 config  PWM_TIECAP
419         tristate "ECAP PWM support"
420         depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
421         help
422           PWM driver support for the ECAP APWM controller found on AM33XX
423           TI SOC
424 
425           To compile this driver as a module, choose M here: the module
426           will be called pwm-tiecap.
427 
428 config  PWM_TIEHRPWM
429         tristate "EHRPWM PWM support"
430         depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
431         help
432           PWM driver support for the EHRPWM controller found on AM33XX
433           TI SOC
434 
435           To compile this driver as a module, choose M here: the module
436           will be called pwm-tiehrpwm.
437 
438 config  PWM_TIPWMSS
439         bool
440         default y if (ARCH_OMAP2PLUS) && (PWM_TIECAP || PWM_TIEHRPWM)
441         help
442           PWM Subsystem driver support for AM33xx SOC.
443 
444           PWM submodules require PWM config space access from submodule
445           drivers and require common parent driver support.
446 
447 config PWM_TWL
448         tristate "TWL4030/6030 PWM support"
449         depends on TWL4030_CORE
450         help
451           Generic PWM framework driver for TWL4030/6030.
452 
453           To compile this driver as a module, choose M here: the module
454           will be called pwm-twl.
455 
456 config PWM_TWL_LED
457         tristate "TWL4030/6030 PWM support for LED drivers"
458         depends on TWL4030_CORE
459         help
460           Generic PWM framework driver for TWL4030/6030 LED terminals.
461 
462           To compile this driver as a module, choose M here: the module
463           will be called pwm-twl-led.
464 
465 config PWM_VT8500
466         tristate "vt8500 PWM support"
467         depends on ARCH_VT8500
468         help
469           Generic PWM framework driver for vt8500.
470 
471           To compile this driver as a module, choose M here: the module
472           will be called pwm-vt8500.
473 
474 endif

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