2 bool "Pulse-Width Modulation (PWM) Support"
4 Generic Pulse-Width Modulation (PWM) support.
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
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.
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.
36 tristate "AB8500 PWM support"
37 depends on AB8500_CORE && ARCH_U8500
39 Generic PWM framework driver for Analog Baseband AB8500.
41 To compile this driver as a module, choose M here: the module
42 will be called pwm-ab8500.
45 tristate "Atmel PWM support"
48 Generic PWM framework driver for Atmel SoC.
50 To compile this driver as a module, choose M here: the module
51 will be called pwm-atmel.
54 tristate "Atmel TC Block PWM support"
55 depends on ATMEL_TCLIB && OF
57 Generic PWM framework driver for Atmel Timer Counter Block.
59 A Timer Counter Block provides 6 PWM devices grouped by 2.
60 Devices in a given group must have the same period.
62 To compile this driver as a module, choose M here: the module
63 will be called pwm-atmel-tcb.
66 tristate "Blackfin PWM support"
67 depends on BFIN_GPTIMERS
69 Generic PWM framework driver for Blackfin.
71 To compile this driver as a module, choose M here: the module
72 will be called pwm-bfin.
75 tristate "Cirrus Logic EP93xx PWM support"
76 depends on ARCH_EP93XX
78 Generic PWM framework driver for Cirrus Logic EP93xx.
80 To compile this driver as a module, choose M here: the module
81 will be called pwm-ep93xx.
84 tristate "Freescale FlexTimer Module (FTM) PWM support"
87 Generic FTM PWM framework driver for Freescale VF610 and
90 To compile this driver as a module, choose M here: the module
91 will be called pwm-fsl-ftm.
94 tristate "i.MX PWM support"
97 Generic PWM framework driver for i.MX.
99 To compile this driver as a module, choose M here: the module
100 will be called pwm-imx.
103 tristate "Ingenic JZ4740 PWM support"
104 depends on MACH_JZ4740
106 Generic PWM framework driver for Ingenic JZ4740 based
109 To compile this driver as a module, choose M here: the module
110 will be called pwm-jz4740.
113 tristate "TI/National Semiconductor LP3943 PWM support"
114 depends on MFD_LP3943
116 Generic PWM framework driver for LP3943 which supports two PWM
119 To compile this driver as a module, choose M here: the module
120 will be called pwm-lp3943.
123 tristate "LPC32XX PWM support"
124 depends on ARCH_LPC32XX
126 Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
129 To compile this driver as a module, choose M here: the module
130 will be called pwm-lpc32xx.
133 tristate "Freescale MXS PWM support"
134 depends on ARCH_MXS && OF
137 Generic PWM framework driver for Freescale MXS.
139 To compile this driver as a module, choose M here: the module
140 will be called pwm-mxs.
143 tristate "NXP PCA9685 PWM driver"
147 Generic PWM framework driver for NXP PCA9685 LED controller.
149 To compile this driver as a module, choose M here: the module
150 will be called pwm-pca9685.
153 tristate "PKUnity NetBook-0916 PWM support"
156 Generic PWM framework driver for PKUnity NetBook-0916.
158 To compile this driver as a module, choose M here: the module
159 will be called pwm-puv3.
162 tristate "PXA PWM support"
165 Generic PWM framework driver for PXA.
167 To compile this driver as a module, choose M here: the module
168 will be called pwm-pxa.
170 config PWM_RENESAS_TPU
171 tristate "Renesas TPU PWM support"
172 depends on ARCH_SHMOBILE || COMPILE_TEST
175 This driver exposes the Timer Pulse Unit (TPU) PWM controller found
176 in Renesas chips through the PWM API.
178 To compile this driver as a module, choose M here: the module
179 will be called pwm-renesas-tpu.
182 tristate "Samsung PWM support"
183 depends on PLAT_SAMSUNG
185 Generic PWM framework driver for Samsung.
187 To compile this driver as a module, choose M here: the module
188 will be called pwm-samsung.
191 tristate "STMicroelectronics SPEAr PWM support"
192 depends on PLAT_SPEAR
195 Generic PWM framework driver for the PWM controller on ST
198 To compile this driver as a module, choose M here: the module
199 will be called pwm-spear.
202 tristate "NVIDIA Tegra PWM support"
203 depends on ARCH_TEGRA
205 Generic PWM framework driver for the PWFM controller found on NVIDIA
208 To compile this driver as a module, choose M here: the module
209 will be called pwm-tegra.
212 tristate "ECAP PWM support"
213 depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
215 PWM driver support for the ECAP APWM controller found on AM33XX
218 To compile this driver as a module, choose M here: the module
219 will be called pwm-tiecap.
222 tristate "EHRPWM PWM support"
223 depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
225 PWM driver support for the EHRPWM controller found on AM33XX
228 To compile this driver as a module, choose M here: the module
229 will be called pwm-tiehrpwm.
233 default y if SOC_AM33XX && (PWM_TIECAP || PWM_TIEHRPWM)
235 PWM Subsystem driver support for AM33xx SOC.
237 PWM submodules require PWM config space access from submodule
238 drivers and require common parent driver support.
241 tristate "TWL4030/6030 PWM support"
242 depends on TWL4030_CORE
244 Generic PWM framework driver for TWL4030/6030.
246 To compile this driver as a module, choose M here: the module
247 will be called pwm-twl.
250 tristate "TWL4030/6030 PWM support for LED drivers"
251 depends on TWL4030_CORE
253 Generic PWM framework driver for TWL4030/6030 LED terminals.
255 To compile this driver as a module, choose M here: the module
256 will be called pwm-twl-led.
259 tristate "vt8500 PWM support"
260 depends on ARCH_VT8500
262 Generic PWM framework driver for vt8500.
264 To compile this driver as a module, choose M here: the module
265 will be called pwm-vt8500.