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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
 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_TCB
 54         tristate "Atmel TC Block PWM support"
 55         depends on ATMEL_TCLIB && OF
 56         help
 57           Generic PWM framework driver for Atmel Timer Counter Block.
 58 
 59           A Timer Counter Block provides 6 PWM devices grouped by 2.
 60           Devices in a given group must have the same period.
 61 
 62           To compile this driver as a module, choose M here: the module
 63           will be called pwm-atmel-tcb.
 64 
 65 config PWM_BFIN
 66         tristate "Blackfin PWM support"
 67         depends on BFIN_GPTIMERS
 68         help
 69           Generic PWM framework driver for Blackfin.
 70 
 71           To compile this driver as a module, choose M here: the module
 72           will be called pwm-bfin.
 73 
 74 config PWM_CLPS711X
 75         tristate "CLPS711X PWM support"
 76         depends on ARCH_CLPS711X || COMPILE_TEST
 77         help
 78           Generic PWM framework driver for Cirrus Logic CLPS711X.
 79 
 80           To compile this driver as a module, choose M here: the module
 81           will be called pwm-clps711x.
 82 
 83 config PWM_EP93XX
 84         tristate "Cirrus Logic EP93xx PWM support"
 85         depends on ARCH_EP93XX
 86         help
 87           Generic PWM framework driver for Cirrus Logic EP93xx.
 88 
 89           To compile this driver as a module, choose M here: the module
 90           will be called pwm-ep93xx.
 91 
 92 config PWM_FSL_FTM
 93         tristate "Freescale FlexTimer Module (FTM) PWM support"
 94         depends on OF
 95         help
 96           Generic FTM PWM framework driver for Freescale VF610 and
 97           Layerscape LS-1 SoCs.
 98 
 99           To compile this driver as a module, choose M here: the module
100           will be called pwm-fsl-ftm.
101 
102 config PWM_IMX
103         tristate "i.MX PWM support"
104         depends on ARCH_MXC
105         help
106           Generic PWM framework driver for i.MX.
107 
108           To compile this driver as a module, choose M here: the module
109           will be called pwm-imx.
110 
111 config PWM_JZ4740
112         tristate "Ingenic JZ4740 PWM support"
113         depends on MACH_JZ4740
114         help
115           Generic PWM framework driver for Ingenic JZ4740 based
116           machines.
117 
118           To compile this driver as a module, choose M here: the module
119           will be called pwm-jz4740.
120 
121 config PWM_LP3943
122         tristate "TI/National Semiconductor LP3943 PWM support"
123         depends on MFD_LP3943
124         help
125           Generic PWM framework driver for LP3943 which supports two PWM
126           channels.
127 
128           To compile this driver as a module, choose M here: the module
129           will be called pwm-lp3943.
130 
131 config PWM_LPC32XX
132         tristate "LPC32XX PWM support"
133         depends on ARCH_LPC32XX
134         help
135           Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
136           PWM controllers.
137 
138           To compile this driver as a module, choose M here: the module
139           will be called pwm-lpc32xx.
140 
141 config PWM_LPSS
142         tristate "Intel LPSS PWM support"
143         depends on ACPI
144         help
145           Generic PWM framework driver for Intel Low Power Subsystem PWM
146           controller.
147 
148           To compile this driver as a module, choose M here: the module
149           will be called pwm-lpss.
150 
151 config PWM_MXS
152         tristate "Freescale MXS PWM support"
153         depends on ARCH_MXS && OF
154         select STMP_DEVICE
155         help
156           Generic PWM framework driver for Freescale MXS.
157 
158           To compile this driver as a module, choose M here: the module
159           will be called pwm-mxs.
160 
161 config PWM_PCA9685
162         tristate "NXP PCA9685 PWM driver"
163         depends on OF && I2C
164         select REGMAP_I2C
165         help
166           Generic PWM framework driver for NXP PCA9685 LED controller.
167 
168           To compile this driver as a module, choose M here: the module
169           will be called pwm-pca9685.
170 
171 config PWM_PUV3
172         tristate "PKUnity NetBook-0916 PWM support"
173         depends on ARCH_PUV3
174         help
175           Generic PWM framework driver for PKUnity NetBook-0916.
176 
177           To compile this driver as a module, choose M here: the module
178           will be called pwm-puv3.
179 
180 config PWM_PXA
181         tristate "PXA PWM support"
182         depends on ARCH_PXA
183         help
184           Generic PWM framework driver for PXA.
185 
186           To compile this driver as a module, choose M here: the module
187           will be called pwm-pxa.
188 
189 config PWM_RENESAS_TPU
190         tristate "Renesas TPU PWM support"
191         depends on ARCH_SHMOBILE || COMPILE_TEST
192         depends on HAS_IOMEM
193         help
194           This driver exposes the Timer Pulse Unit (TPU) PWM controller found
195           in Renesas chips through the PWM API.
196 
197           To compile this driver as a module, choose M here: the module
198           will be called pwm-renesas-tpu.
199 
200 config PWM_SAMSUNG
201         tristate "Samsung PWM support"
202         depends on PLAT_SAMSUNG
203         help
204           Generic PWM framework driver for Samsung.
205 
206           To compile this driver as a module, choose M here: the module
207           will be called pwm-samsung.
208 
209 config PWM_SPEAR
210         tristate "STMicroelectronics SPEAr PWM support"
211         depends on PLAT_SPEAR
212         depends on OF
213         help
214           Generic PWM framework driver for the PWM controller on ST
215           SPEAr SoCs.
216 
217           To compile this driver as a module, choose M here: the module
218           will be called pwm-spear.
219 
220 config PWM_TEGRA
221         tristate "NVIDIA Tegra PWM support"
222         depends on ARCH_TEGRA
223         help
224           Generic PWM framework driver for the PWFM controller found on NVIDIA
225           Tegra SoCs.
226 
227           To compile this driver as a module, choose M here: the module
228           will be called pwm-tegra.
229 
230 config  PWM_TIECAP
231         tristate "ECAP PWM support"
232         depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
233         help
234           PWM driver support for the ECAP APWM controller found on AM33XX
235           TI SOC
236 
237           To compile this driver as a module, choose M here: the module
238           will be called pwm-tiecap.
239 
240 config  PWM_TIEHRPWM
241         tristate "EHRPWM PWM support"
242         depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
243         help
244           PWM driver support for the EHRPWM controller found on AM33XX
245           TI SOC
246 
247           To compile this driver as a module, choose M here: the module
248           will be called pwm-tiehrpwm.
249 
250 config  PWM_TIPWMSS
251         bool
252         default y if SOC_AM33XX && (PWM_TIECAP || PWM_TIEHRPWM)
253         help
254           PWM Subsystem driver support for AM33xx SOC.
255 
256           PWM submodules require PWM config space access from submodule
257           drivers and require common parent driver support.
258 
259 config PWM_TWL
260         tristate "TWL4030/6030 PWM support"
261         depends on TWL4030_CORE
262         help
263           Generic PWM framework driver for TWL4030/6030.
264 
265           To compile this driver as a module, choose M here: the module
266           will be called pwm-twl.
267 
268 config PWM_TWL_LED
269         tristate "TWL4030/6030 PWM support for LED drivers"
270         depends on TWL4030_CORE
271         help
272           Generic PWM framework driver for TWL4030/6030 LED terminals.
273 
274           To compile this driver as a module, choose M here: the module
275           will be called pwm-twl-led.
276 
277 config PWM_VT8500
278         tristate "vt8500 PWM support"
279         depends on ARCH_VT8500
280         help
281           Generic PWM framework driver for vt8500.
282 
283           To compile this driver as a module, choose M here: the module
284           will be called pwm-vt8500.
285 
286 endif

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