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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         help
 57           Generic PWM framework driver for the PWM output of the HLCDC
 58           (Atmel High-end LCD Controller). This PWM output is mainly used
 59           to control the LCD backlight.
 60 
 61           To compile this driver as a module, choose M here: the module
 62           will be called pwm-atmel-hlcdc.
 63 
 64 config PWM_ATMEL_TCB
 65         tristate "Atmel TC Block PWM support"
 66         depends on ATMEL_TCLIB && OF
 67         help
 68           Generic PWM framework driver for Atmel Timer Counter Block.
 69 
 70           A Timer Counter Block provides 6 PWM devices grouped by 2.
 71           Devices in a given group must have the same period.
 72 
 73           To compile this driver as a module, choose M here: the module
 74           will be called pwm-atmel-tcb.
 75 
 76 config PWM_BCM_KONA
 77         tristate "Kona PWM support"
 78         depends on ARCH_BCM_MOBILE
 79         help
 80           Generic PWM framework driver for Broadcom Kona PWM block.
 81 
 82           To compile this driver as a module, choose M here: the module
 83           will be called pwm-bcm-kona.
 84 
 85 config PWM_BCM2835
 86         tristate "BCM2835 PWM support"
 87         depends on ARCH_BCM2835
 88         help
 89           PWM framework driver for BCM2835 controller (Raspberry Pi)
 90 
 91           To compile this driver as a module, choose M here: the module
 92           will be called pwm-bcm2835.
 93 
 94 config PWM_BFIN
 95         tristate "Blackfin PWM support"
 96         depends on BFIN_GPTIMERS
 97         help
 98           Generic PWM framework driver for Blackfin.
 99 
100           To compile this driver as a module, choose M here: the module
101           will be called pwm-bfin.
102 
103 config PWM_CLPS711X
104         tristate "CLPS711X PWM support"
105         depends on ARCH_CLPS711X || COMPILE_TEST
106         depends on HAS_IOMEM
107         help
108           Generic PWM framework driver for Cirrus Logic CLPS711X.
109 
110           To compile this driver as a module, choose M here: the module
111           will be called pwm-clps711x.
112 
113 config PWM_EP93XX
114         tristate "Cirrus Logic EP93xx PWM support"
115         depends on ARCH_EP93XX
116         help
117           Generic PWM framework driver for Cirrus Logic EP93xx.
118 
119           To compile this driver as a module, choose M here: the module
120           will be called pwm-ep93xx.
121 
122 config PWM_FSL_FTM
123         tristate "Freescale FlexTimer Module (FTM) PWM support"
124         depends on OF
125         select REGMAP_MMIO
126         help
127           Generic FTM PWM framework driver for Freescale VF610 and
128           Layerscape LS-1 SoCs.
129 
130           To compile this driver as a module, choose M here: the module
131           will be called pwm-fsl-ftm.
132 
133 config PWM_IMX
134         tristate "i.MX PWM support"
135         depends on ARCH_MXC
136         help
137           Generic PWM framework driver for i.MX.
138 
139           To compile this driver as a module, choose M here: the module
140           will be called pwm-imx.
141 
142 config PWM_JZ4740
143         tristate "Ingenic JZ4740 PWM support"
144         depends on MACH_JZ4740
145         help
146           Generic PWM framework driver for Ingenic JZ4740 based
147           machines.
148 
149           To compile this driver as a module, choose M here: the module
150           will be called pwm-jz4740.
151 
152 config PWM_LP3943
153         tristate "TI/National Semiconductor LP3943 PWM support"
154         depends on MFD_LP3943
155         help
156           Generic PWM framework driver for LP3943 which supports two PWM
157           channels.
158 
159           To compile this driver as a module, choose M here: the module
160           will be called pwm-lp3943.
161 
162 config PWM_LPC32XX
163         tristate "LPC32XX PWM support"
164         depends on ARCH_LPC32XX
165         help
166           Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
167           PWM controllers.
168 
169           To compile this driver as a module, choose M here: the module
170           will be called pwm-lpc32xx.
171 
172 config PWM_LPSS
173         tristate "Intel LPSS PWM support"
174         depends on X86
175         help
176           Generic PWM framework driver for Intel Low Power Subsystem PWM
177           controller.
178 
179           To compile this driver as a module, choose M here: the module
180           will be called pwm-lpss.
181 
182 config PWM_LPSS_PCI
183         tristate "Intel LPSS PWM PCI driver"
184         depends on PWM_LPSS && PCI
185         help
186           The PCI driver for Intel Low Power Subsystem PWM controller.
187 
188           To compile this driver as a module, choose M here: the module
189           will be called pwm-lpss-pci.
190 
191 config PWM_LPSS_PLATFORM
192         tristate "Intel LPSS PWM platform driver"
193         depends on PWM_LPSS && ACPI
194         help
195           The platform driver for Intel Low Power Subsystem PWM controller.
196 
197           To compile this driver as a module, choose M here: the module
198           will be called pwm-lpss-platform.
199 
200 config PWM_MXS
201         tristate "Freescale MXS PWM support"
202         depends on ARCH_MXS && OF
203         select STMP_DEVICE
204         help
205           Generic PWM framework driver for Freescale MXS.
206 
207           To compile this driver as a module, choose M here: the module
208           will be called pwm-mxs.
209 
210 config PWM_PCA9685
211         tristate "NXP PCA9685 PWM driver"
212         depends on OF && I2C
213         select REGMAP_I2C
214         help
215           Generic PWM framework driver for NXP PCA9685 LED controller.
216 
217           To compile this driver as a module, choose M here: the module
218           will be called pwm-pca9685.
219 
220 config PWM_PUV3
221         tristate "PKUnity NetBook-0916 PWM support"
222         depends on ARCH_PUV3
223         help
224           Generic PWM framework driver for PKUnity NetBook-0916.
225 
226           To compile this driver as a module, choose M here: the module
227           will be called pwm-puv3.
228 
229 config PWM_PXA
230         tristate "PXA PWM support"
231         depends on ARCH_PXA
232         help
233           Generic PWM framework driver for PXA.
234 
235           To compile this driver as a module, choose M here: the module
236           will be called pwm-pxa.
237 
238 config PWM_RENESAS_TPU
239         tristate "Renesas TPU PWM support"
240         depends on ARCH_SHMOBILE || COMPILE_TEST
241         depends on HAS_IOMEM
242         help
243           This driver exposes the Timer Pulse Unit (TPU) PWM controller found
244           in Renesas chips through the PWM API.
245 
246           To compile this driver as a module, choose M here: the module
247           will be called pwm-renesas-tpu.
248 
249 config PWM_ROCKCHIP
250         tristate "Rockchip PWM support"
251         depends on ARCH_ROCKCHIP
252         help
253           Generic PWM framework driver for the PWM controller found on
254           Rockchip SoCs.
255 
256 config PWM_SAMSUNG
257         tristate "Samsung PWM support"
258         depends on PLAT_SAMSUNG || ARCH_EXYNOS
259         help
260           Generic PWM framework driver for Samsung.
261 
262           To compile this driver as a module, choose M here: the module
263           will be called pwm-samsung.
264 
265 config PWM_SPEAR
266         tristate "STMicroelectronics SPEAr PWM support"
267         depends on PLAT_SPEAR
268         depends on OF
269         help
270           Generic PWM framework driver for the PWM controller on ST
271           SPEAr SoCs.
272 
273           To compile this driver as a module, choose M here: the module
274           will be called pwm-spear.
275 
276 config PWM_STI
277         tristate "STiH4xx PWM support"
278         depends on ARCH_STI
279         depends on OF
280         help
281           Generic PWM framework driver for STiH4xx SoCs.
282 
283           To compile this driver as a module, choose M here: the module
284           will be called pwm-sti.
285 
286 config PWM_TEGRA
287         tristate "NVIDIA Tegra PWM support"
288         depends on ARCH_TEGRA
289         help
290           Generic PWM framework driver for the PWFM controller found on NVIDIA
291           Tegra SoCs.
292 
293           To compile this driver as a module, choose M here: the module
294           will be called pwm-tegra.
295 
296 config  PWM_TIECAP
297         tristate "ECAP PWM support"
298         depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
299         help
300           PWM driver support for the ECAP APWM controller found on AM33XX
301           TI SOC
302 
303           To compile this driver as a module, choose M here: the module
304           will be called pwm-tiecap.
305 
306 config  PWM_TIEHRPWM
307         tristate "EHRPWM PWM support"
308         depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
309         help
310           PWM driver support for the EHRPWM controller found on AM33XX
311           TI SOC
312 
313           To compile this driver as a module, choose M here: the module
314           will be called pwm-tiehrpwm.
315 
316 config  PWM_TIPWMSS
317         bool
318         default y if SOC_AM33XX && (PWM_TIECAP || PWM_TIEHRPWM)
319         help
320           PWM Subsystem driver support for AM33xx SOC.
321 
322           PWM submodules require PWM config space access from submodule
323           drivers and require common parent driver support.
324 
325 config PWM_TWL
326         tristate "TWL4030/6030 PWM support"
327         depends on TWL4030_CORE
328         help
329           Generic PWM framework driver for TWL4030/6030.
330 
331           To compile this driver as a module, choose M here: the module
332           will be called pwm-twl.
333 
334 config PWM_TWL_LED
335         tristate "TWL4030/6030 PWM support for LED drivers"
336         depends on TWL4030_CORE
337         help
338           Generic PWM framework driver for TWL4030/6030 LED terminals.
339 
340           To compile this driver as a module, choose M here: the module
341           will be called pwm-twl-led.
342 
343 config PWM_VT8500
344         tristate "vt8500 PWM support"
345         depends on ARCH_VT8500
346         help
347           Generic PWM framework driver for vt8500.
348 
349           To compile this driver as a module, choose M here: the module
350           will be called pwm-vt8500.
351 
352 endif

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