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 TC Block PWM support"
46 depends on ATMEL_TCLIB && OF
48 Generic PWM framework driver for Atmel Timer Counter Block.
50 A Timer Counter Block provides 6 PWM devices grouped by 2.
51 Devices in a given group must have the same period.
53 To compile this driver as a module, choose M here: the module
54 will be called pwm-atmel-tcb.
57 tristate "Blackfin PWM support"
58 depends on BFIN_GPTIMERS
60 Generic PWM framework driver for Blackfin.
62 To compile this driver as a module, choose M here: the module
63 will be called pwm-bfin.
66 tristate "Cirrus Logic EP93xx PWM support"
67 depends on ARCH_EP93XX
69 Generic PWM framework driver for Cirrus Logic EP93xx.
71 To compile this driver as a module, choose M here: the module
72 will be called pwm-ep93xx.
75 tristate "i.MX PWM support"
78 Generic PWM framework driver for i.MX.
80 To compile this driver as a module, choose M here: the module
81 will be called pwm-imx.
84 tristate "Ingenic JZ4740 PWM support"
85 depends on MACH_JZ4740
87 Generic PWM framework driver for Ingenic JZ4740 based
90 To compile this driver as a module, choose M here: the module
91 will be called pwm-jz4740.
94 tristate "TI/National Semiconductor LP3943 PWM support"
97 Generic PWM framework driver for LP3943 which supports two PWM
100 To compile this driver as a module, choose M here: the module
101 will be called pwm-lp3943.
104 tristate "LPC32XX PWM support"
105 depends on ARCH_LPC32XX
107 Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
110 To compile this driver as a module, choose M here: the module
111 will be called pwm-lpc32xx.
114 tristate "Freescale MXS PWM support"
115 depends on ARCH_MXS && OF
118 Generic PWM framework driver for Freescale MXS.
120 To compile this driver as a module, choose M here: the module
121 will be called pwm-mxs.
124 tristate "NXP PCA9685 PWM driver"
125 depends on OF && REGMAP_I2C
127 Generic PWM framework driver for NXP PCA9685 LED controller.
129 To compile this driver as a module, choose M here: the module
130 will be called pwm-pca9685.
133 tristate "PKUnity NetBook-0916 PWM support"
136 Generic PWM framework driver for PKUnity NetBook-0916.
138 To compile this driver as a module, choose M here: the module
139 will be called pwm-puv3.
142 tristate "PXA PWM support"
145 Generic PWM framework driver for PXA.
147 To compile this driver as a module, choose M here: the module
148 will be called pwm-pxa.
150 config PWM_RENESAS_TPU
151 tristate "Renesas TPU PWM support"
152 depends on ARCH_SHMOBILE
154 This driver exposes the Timer Pulse Unit (TPU) PWM controller found
155 in Renesas chips through the PWM API.
157 To compile this driver as a module, choose M here: the module
158 will be called pwm-renesas-tpu.
161 tristate "Samsung PWM support"
162 depends on PLAT_SAMSUNG
164 Generic PWM framework driver for Samsung.
166 To compile this driver as a module, choose M here: the module
167 will be called pwm-samsung.
170 tristate "STMicroelectronics SPEAr PWM support"
171 depends on PLAT_SPEAR
174 Generic PWM framework driver for the PWM controller on ST
177 To compile this driver as a module, choose M here: the module
178 will be called pwm-spear.
181 tristate "NVIDIA Tegra PWM support"
182 depends on ARCH_TEGRA
184 Generic PWM framework driver for the PWFM controller found on NVIDIA
187 To compile this driver as a module, choose M here: the module
188 will be called pwm-tegra.
191 tristate "ECAP PWM support"
192 depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
194 PWM driver support for the ECAP APWM controller found on AM33XX
197 To compile this driver as a module, choose M here: the module
198 will be called pwm-tiecap.
201 tristate "EHRPWM PWM support"
202 depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
204 PWM driver support for the EHRPWM controller found on AM33XX
207 To compile this driver as a module, choose M here: the module
208 will be called pwm-tiehrpwm.
212 default y if SOC_AM33XX && (PWM_TIECAP || PWM_TIEHRPWM)
214 PWM Subsystem driver support for AM33xx SOC.
216 PWM submodules require PWM config space access from submodule
217 drivers and require common parent driver support.
220 tristate "TWL4030/6030 PWM support"
221 depends on TWL4030_CORE
223 Generic PWM framework driver for TWL4030/6030.
225 To compile this driver as a module, choose M here: the module
226 will be called pwm-twl.
229 tristate "TWL4030/6030 PWM support for LED drivers"
230 depends on TWL4030_CORE
232 Generic PWM framework driver for TWL4030/6030 LED terminals.
234 To compile this driver as a module, choose M here: the module
235 will be called pwm-twl-led.
238 tristate "vt8500 PWM support"
239 depends on ARCH_VT8500
241 Generic PWM framework driver for vt8500.
243 To compile this driver as a module, choose M here: the module
244 will be called pwm-vt8500.