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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_BFIN
 96         tristate "Blackfin PWM support"
 97         depends on BFIN_GPTIMERS
 98         help
 99           Generic PWM framework driver for Blackfin.
100 
101           To compile this driver as a module, choose M here: the module
102           will be called pwm-bfin.
103 
104 config PWM_CLPS711X
105         tristate "CLPS711X PWM support"
106         depends on ARCH_CLPS711X || COMPILE_TEST
107         depends on HAS_IOMEM
108         help
109           Generic PWM framework driver for Cirrus Logic CLPS711X.
110 
111           To compile this driver as a module, choose M here: the module
112           will be called pwm-clps711x.
113 
114 config PWM_EP93XX
115         tristate "Cirrus Logic EP93xx PWM support"
116         depends on ARCH_EP93XX
117         help
118           Generic PWM framework driver for Cirrus Logic EP93xx.
119 
120           To compile this driver as a module, choose M here: the module
121           will be called pwm-ep93xx.
122 
123 config PWM_FSL_FTM
124         tristate "Freescale FlexTimer Module (FTM) PWM support"
125         depends on OF
126         select REGMAP_MMIO
127         help
128           Generic FTM PWM framework driver for Freescale VF610 and
129           Layerscape LS-1 SoCs.
130 
131           To compile this driver as a module, choose M here: the module
132           will be called pwm-fsl-ftm.
133 
134 config PWM_IMG
135         tristate "Imagination Technologies PWM driver"
136         depends on HAS_IOMEM
137         depends on MFD_SYSCON
138         depends on COMMON_CLK
139         depends on MIPS || COMPILE_TEST
140         help
141           Generic PWM framework driver for Imagination Technologies
142           PWM block which supports 4 channels.
143 
144           To compile this driver as a module, choose M here: the module
145           will be called pwm-img
146 
147 config PWM_IMX
148         tristate "i.MX PWM support"
149         depends on ARCH_MXC
150         help
151           Generic PWM framework driver for i.MX.
152 
153           To compile this driver as a module, choose M here: the module
154           will be called pwm-imx.
155 
156 config PWM_JZ4740
157         tristate "Ingenic JZ4740 PWM support"
158         depends on MACH_JZ4740
159         help
160           Generic PWM framework driver for Ingenic JZ4740 based
161           machines.
162 
163           To compile this driver as a module, choose M here: the module
164           will be called pwm-jz4740.
165 
166 config PWM_LP3943
167         tristate "TI/National Semiconductor LP3943 PWM support"
168         depends on MFD_LP3943
169         help
170           Generic PWM framework driver for LP3943 which supports two PWM
171           channels.
172 
173           To compile this driver as a module, choose M here: the module
174           will be called pwm-lp3943.
175 
176 config PWM_LPC32XX
177         tristate "LPC32XX PWM support"
178         depends on ARCH_LPC32XX
179         help
180           Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
181           PWM controllers.
182 
183           To compile this driver as a module, choose M here: the module
184           will be called pwm-lpc32xx.
185 
186 config PWM_LPSS
187         tristate "Intel LPSS PWM support"
188         depends on X86
189         help
190           Generic PWM framework driver for Intel Low Power Subsystem PWM
191           controller.
192 
193           To compile this driver as a module, choose M here: the module
194           will be called pwm-lpss.
195 
196 config PWM_LPSS_PCI
197         tristate "Intel LPSS PWM PCI driver"
198         depends on PWM_LPSS && PCI
199         help
200           The PCI driver for Intel Low Power Subsystem PWM controller.
201 
202           To compile this driver as a module, choose M here: the module
203           will be called pwm-lpss-pci.
204 
205 config PWM_LPSS_PLATFORM
206         tristate "Intel LPSS PWM platform driver"
207         depends on PWM_LPSS && ACPI
208         help
209           The platform driver for Intel Low Power Subsystem PWM controller.
210 
211           To compile this driver as a module, choose M here: the module
212           will be called pwm-lpss-platform.
213 
214 config PWM_MXS
215         tristate "Freescale MXS PWM support"
216         depends on ARCH_MXS && OF
217         select STMP_DEVICE
218         help
219           Generic PWM framework driver for Freescale MXS.
220 
221           To compile this driver as a module, choose M here: the module
222           will be called pwm-mxs.
223 
224 config PWM_PCA9685
225         tristate "NXP PCA9685 PWM driver"
226         depends on OF && I2C
227         select REGMAP_I2C
228         help
229           Generic PWM framework driver for NXP PCA9685 LED controller.
230 
231           To compile this driver as a module, choose M here: the module
232           will be called pwm-pca9685.
233 
234 config PWM_PUV3
235         tristate "PKUnity NetBook-0916 PWM support"
236         depends on ARCH_PUV3
237         help
238           Generic PWM framework driver for PKUnity NetBook-0916.
239 
240           To compile this driver as a module, choose M here: the module
241           will be called pwm-puv3.
242 
243 config PWM_PXA
244         tristate "PXA PWM support"
245         depends on ARCH_PXA
246         help
247           Generic PWM framework driver for PXA.
248 
249           To compile this driver as a module, choose M here: the module
250           will be called pwm-pxa.
251 
252 config PWM_RENESAS_TPU
253         tristate "Renesas TPU PWM support"
254         depends on ARCH_SHMOBILE || COMPILE_TEST
255         depends on HAS_IOMEM
256         help
257           This driver exposes the Timer Pulse Unit (TPU) PWM controller found
258           in Renesas chips through the PWM API.
259 
260           To compile this driver as a module, choose M here: the module
261           will be called pwm-renesas-tpu.
262 
263 config PWM_ROCKCHIP
264         tristate "Rockchip PWM support"
265         depends on ARCH_ROCKCHIP
266         help
267           Generic PWM framework driver for the PWM controller found on
268           Rockchip SoCs.
269 
270 config PWM_SAMSUNG
271         tristate "Samsung PWM support"
272         depends on PLAT_SAMSUNG || ARCH_EXYNOS
273         help
274           Generic PWM framework driver for Samsung.
275 
276           To compile this driver as a module, choose M here: the module
277           will be called pwm-samsung.
278 
279 config PWM_SPEAR
280         tristate "STMicroelectronics SPEAr PWM support"
281         depends on PLAT_SPEAR
282         depends on OF
283         help
284           Generic PWM framework driver for the PWM controller on ST
285           SPEAr SoCs.
286 
287           To compile this driver as a module, choose M here: the module
288           will be called pwm-spear.
289 
290 config PWM_STI
291         tristate "STiH4xx PWM support"
292         depends on ARCH_STI
293         depends on OF
294         help
295           Generic PWM framework driver for STiH4xx SoCs.
296 
297           To compile this driver as a module, choose M here: the module
298           will be called pwm-sti.
299 
300 config PWM_SUN4I
301         tristate "Allwinner PWM support"
302         depends on ARCH_SUNXI || COMPILE_TEST
303         depends on HAS_IOMEM && COMMON_CLK
304         help
305           Generic PWM framework driver for Allwinner SoCs.
306 
307           To compile this driver as a module, choose M here: the module
308           will be called pwm-sun4i.
309 
310 config PWM_TEGRA
311         tristate "NVIDIA Tegra PWM support"
312         depends on ARCH_TEGRA
313         help
314           Generic PWM framework driver for the PWFM controller found on NVIDIA
315           Tegra SoCs.
316 
317           To compile this driver as a module, choose M here: the module
318           will be called pwm-tegra.
319 
320 config  PWM_TIECAP
321         tristate "ECAP PWM support"
322         depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
323         help
324           PWM driver support for the ECAP APWM controller found on AM33XX
325           TI SOC
326 
327           To compile this driver as a module, choose M here: the module
328           will be called pwm-tiecap.
329 
330 config  PWM_TIEHRPWM
331         tristate "EHRPWM PWM support"
332         depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
333         help
334           PWM driver support for the EHRPWM controller found on AM33XX
335           TI SOC
336 
337           To compile this driver as a module, choose M here: the module
338           will be called pwm-tiehrpwm.
339 
340 config  PWM_TIPWMSS
341         bool
342         default y if SOC_AM33XX && (PWM_TIECAP || PWM_TIEHRPWM)
343         help
344           PWM Subsystem driver support for AM33xx SOC.
345 
346           PWM submodules require PWM config space access from submodule
347           drivers and require common parent driver support.
348 
349 config PWM_TWL
350         tristate "TWL4030/6030 PWM support"
351         depends on TWL4030_CORE
352         help
353           Generic PWM framework driver for TWL4030/6030.
354 
355           To compile this driver as a module, choose M here: the module
356           will be called pwm-twl.
357 
358 config PWM_TWL_LED
359         tristate "TWL4030/6030 PWM support for LED drivers"
360         depends on TWL4030_CORE
361         help
362           Generic PWM framework driver for TWL4030/6030 LED terminals.
363 
364           To compile this driver as a module, choose M here: the module
365           will be called pwm-twl-led.
366 
367 config PWM_VT8500
368         tristate "vt8500 PWM support"
369         depends on ARCH_VT8500
370         help
371           Generic PWM framework driver for vt8500.
372 
373           To compile this driver as a module, choose M here: the module
374           will be called pwm-vt8500.
375 
376 endif

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