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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 OF
152         select REGMAP_MMIO
153         help
154           Generic FTM PWM framework driver for Freescale VF610 and
155           Layerscape LS-1 SoCs.
156 
157           To compile this driver as a module, choose M here: the module
158           will be called pwm-fsl-ftm.
159 
160 config PWM_IMG
161         tristate "Imagination Technologies PWM driver"
162         depends on HAS_IOMEM
163         depends on MFD_SYSCON
164         depends on COMMON_CLK
165         depends on MIPS || COMPILE_TEST
166         help
167           Generic PWM framework driver for Imagination Technologies
168           PWM block which supports 4 channels.
169 
170           To compile this driver as a module, choose M here: the module
171           will be called pwm-img
172 
173 config PWM_IMX
174         tristate "i.MX PWM support"
175         depends on ARCH_MXC
176         help
177           Generic PWM framework driver for i.MX.
178 
179           To compile this driver as a module, choose M here: the module
180           will be called pwm-imx.
181 
182 config PWM_JZ4740
183         tristate "Ingenic JZ4740 PWM support"
184         depends on MACH_JZ4740
185         help
186           Generic PWM framework driver for Ingenic JZ4740 based
187           machines.
188 
189           To compile this driver as a module, choose M here: the module
190           will be called pwm-jz4740.
191 
192 config PWM_LP3943
193         tristate "TI/National Semiconductor LP3943 PWM support"
194         depends on MFD_LP3943
195         help
196           Generic PWM framework driver for LP3943 which supports two PWM
197           channels.
198 
199           To compile this driver as a module, choose M here: the module
200           will be called pwm-lp3943.
201 
202 config PWM_LPC18XX_SCT
203         tristate "LPC18xx/43xx PWM/SCT support"
204         depends on ARCH_LPC18XX
205         help
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.
210 
211           To compile this driver as a module, choose M here: the module
212           will be called pwm-lpc18xx-sct.
213 
214 config PWM_LPC32XX
215         tristate "LPC32XX PWM support"
216         depends on ARCH_LPC32XX
217         help
218           Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
219           PWM controllers.
220 
221           To compile this driver as a module, choose M here: the module
222           will be called pwm-lpc32xx.
223 
224 config PWM_LPSS
225         tristate "Intel LPSS PWM support"
226         depends on X86
227         help
228           Generic PWM framework driver for Intel Low Power Subsystem PWM
229           controller.
230 
231           To compile this driver as a module, choose M here: the module
232           will be called pwm-lpss.
233 
234 config PWM_LPSS_PCI
235         tristate "Intel LPSS PWM PCI driver"
236         depends on PWM_LPSS && PCI
237         help
238           The PCI driver for Intel Low Power Subsystem PWM controller.
239 
240           To compile this driver as a module, choose M here: the module
241           will be called pwm-lpss-pci.
242 
243 config PWM_LPSS_PLATFORM
244         tristate "Intel LPSS PWM platform driver"
245         depends on PWM_LPSS && ACPI
246         help
247           The platform driver for Intel Low Power Subsystem PWM controller.
248 
249           To compile this driver as a module, choose M here: the module
250           will be called pwm-lpss-platform.
251 
252 config PWM_MTK_DISP
253         tristate "MediaTek display PWM driver"
254         depends on ARCH_MEDIATEK || COMPILE_TEST
255         depends on HAS_IOMEM
256         help
257           Generic PWM framework driver for MediaTek disp-pwm device.
258           The PWM is used to control the backlight brightness for display.
259 
260           To compile this driver as a module, choose M here: the module
261           will be called pwm-mtk-disp.
262 
263 config PWM_MXS
264         tristate "Freescale MXS PWM support"
265         depends on ARCH_MXS && OF
266         select STMP_DEVICE
267         help
268           Generic PWM framework driver for Freescale MXS.
269 
270           To compile this driver as a module, choose M here: the module
271           will be called pwm-mxs.
272 
273 config PWM_PCA9685
274         tristate "NXP PCA9685 PWM driver"
275         depends on I2C
276         select REGMAP_I2C
277         help
278           Generic PWM framework driver for NXP PCA9685 LED controller.
279 
280           To compile this driver as a module, choose M here: the module
281           will be called pwm-pca9685.
282 
283 config PWM_PUV3
284         tristate "PKUnity NetBook-0916 PWM support"
285         depends on ARCH_PUV3
286         help
287           Generic PWM framework driver for PKUnity NetBook-0916.
288 
289           To compile this driver as a module, choose M here: the module
290           will be called pwm-puv3.
291 
292 config PWM_PXA
293         tristate "PXA PWM support"
294         depends on ARCH_PXA
295         help
296           Generic PWM framework driver for PXA.
297 
298           To compile this driver as a module, choose M here: the module
299           will be called pwm-pxa.
300 
301 config PWM_RCAR
302         tristate "Renesas R-Car PWM support"
303         depends on ARCH_RCAR_GEN1 || ARCH_RCAR_GEN2 || COMPILE_TEST
304         depends on HAS_IOMEM
305         help
306           This driver exposes the PWM Timer controller found in Renesas
307           R-Car chips through the PWM API.
308 
309           To compile this driver as a module, choose M here: the module
310           will be called pwm-rcar.
311 
312 config PWM_RENESAS_TPU
313         tristate "Renesas TPU PWM support"
314         depends on ARCH_SHMOBILE || COMPILE_TEST
315         depends on HAS_IOMEM
316         help
317           This driver exposes the Timer Pulse Unit (TPU) PWM controller found
318           in Renesas chips through the PWM API.
319 
320           To compile this driver as a module, choose M here: the module
321           will be called pwm-renesas-tpu.
322 
323 config PWM_ROCKCHIP
324         tristate "Rockchip PWM support"
325         depends on ARCH_ROCKCHIP
326         help
327           Generic PWM framework driver for the PWM controller found on
328           Rockchip SoCs.
329 
330 config PWM_SAMSUNG
331         tristate "Samsung PWM support"
332         depends on PLAT_SAMSUNG || ARCH_EXYNOS
333         help
334           Generic PWM framework driver for Samsung.
335 
336           To compile this driver as a module, choose M here: the module
337           will be called pwm-samsung.
338 
339 config PWM_SPEAR
340         tristate "STMicroelectronics SPEAr PWM support"
341         depends on PLAT_SPEAR
342         depends on OF
343         help
344           Generic PWM framework driver for the PWM controller on ST
345           SPEAr SoCs.
346 
347           To compile this driver as a module, choose M here: the module
348           will be called pwm-spear.
349 
350 config PWM_STI
351         tristate "STiH4xx PWM support"
352         depends on ARCH_STI
353         depends on OF
354         help
355           Generic PWM framework driver for STiH4xx SoCs.
356 
357           To compile this driver as a module, choose M here: the module
358           will be called pwm-sti.
359 
360 config PWM_SUN4I
361         tristate "Allwinner PWM support"
362         depends on ARCH_SUNXI || COMPILE_TEST
363         depends on HAS_IOMEM && COMMON_CLK
364         help
365           Generic PWM framework driver for Allwinner SoCs.
366 
367           To compile this driver as a module, choose M here: the module
368           will be called pwm-sun4i.
369 
370 config PWM_TEGRA
371         tristate "NVIDIA Tegra PWM support"
372         depends on ARCH_TEGRA
373         help
374           Generic PWM framework driver for the PWFM controller found on NVIDIA
375           Tegra SoCs.
376 
377           To compile this driver as a module, choose M here: the module
378           will be called pwm-tegra.
379 
380 config  PWM_TIECAP
381         tristate "ECAP PWM support"
382         depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
383         help
384           PWM driver support for the ECAP APWM controller found on AM33XX
385           TI SOC
386 
387           To compile this driver as a module, choose M here: the module
388           will be called pwm-tiecap.
389 
390 config  PWM_TIEHRPWM
391         tristate "EHRPWM PWM support"
392         depends on ARCH_OMAP2PLUS || ARCH_DAVINCI_DA8XX
393         help
394           PWM driver support for the EHRPWM controller found on AM33XX
395           TI SOC
396 
397           To compile this driver as a module, choose M here: the module
398           will be called pwm-tiehrpwm.
399 
400 config  PWM_TIPWMSS
401         bool
402         default y if (ARCH_OMAP2PLUS) && (PWM_TIECAP || PWM_TIEHRPWM)
403         help
404           PWM Subsystem driver support for AM33xx SOC.
405 
406           PWM submodules require PWM config space access from submodule
407           drivers and require common parent driver support.
408 
409 config PWM_TWL
410         tristate "TWL4030/6030 PWM support"
411         depends on TWL4030_CORE
412         help
413           Generic PWM framework driver for TWL4030/6030.
414 
415           To compile this driver as a module, choose M here: the module
416           will be called pwm-twl.
417 
418 config PWM_TWL_LED
419         tristate "TWL4030/6030 PWM support for LED drivers"
420         depends on TWL4030_CORE
421         help
422           Generic PWM framework driver for TWL4030/6030 LED terminals.
423 
424           To compile this driver as a module, choose M here: the module
425           will be called pwm-twl-led.
426 
427 config PWM_VT8500
428         tristate "vt8500 PWM support"
429         depends on ARCH_VT8500
430         help
431           Generic PWM framework driver for vt8500.
432 
433           To compile this driver as a module, choose M here: the module
434           will be called pwm-vt8500.
435 
436 endif

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