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 "LPC32XX PWM support"
95 depends on ARCH_LPC32XX
97 Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
100 To compile this driver as a module, choose M here: the module
101 will be called pwm-lpc32xx.
104 tristate "Freescale MXS PWM support"
105 depends on ARCH_MXS && OF
108 Generic PWM framework driver for Freescale MXS.
110 To compile this driver as a module, choose M here: the module
111 will be called pwm-mxs.
114 tristate "NXP PCA9685 PWM driver"
115 depends on OF && REGMAP_I2C
117 Generic PWM framework driver for NXP PCA9685 LED controller.
119 To compile this driver as a module, choose M here: the module
120 will be called pwm-pca9685.
123 tristate "PKUnity NetBook-0916 PWM support"
126 Generic PWM framework driver for PKUnity NetBook-0916.
128 To compile this driver as a module, choose M here: the module
129 will be called pwm-puv3.
132 tristate "PXA PWM support"
135 Generic PWM framework driver for PXA.
137 To compile this driver as a module, choose M here: the module
138 will be called pwm-pxa.
140 config PWM_RENESAS_TPU
141 tristate "Renesas TPU PWM support"
142 depends on ARCH_SHMOBILE
144 This driver exposes the Timer Pulse Unit (TPU) PWM controller found
145 in Renesas chips through the PWM API.
147 To compile this driver as a module, choose M here: the module
148 will be called pwm-renesas-tpu.
151 tristate "Samsung PWM support"
152 depends on PLAT_SAMSUNG
154 Generic PWM framework driver for Samsung.
156 To compile this driver as a module, choose M here: the module
157 will be called pwm-samsung.
160 tristate "STMicroelectronics SPEAr PWM support"
161 depends on PLAT_SPEAR
164 Generic PWM framework driver for the PWM controller on ST
167 To compile this driver as a module, choose M here: the module
168 will be called pwm-spear.
171 tristate "NVIDIA Tegra PWM support"
172 depends on ARCH_TEGRA
174 Generic PWM framework driver for the PWFM controller found on NVIDIA
177 To compile this driver as a module, choose M here: the module
178 will be called pwm-tegra.
181 tristate "ECAP PWM support"
182 depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
184 PWM driver support for the ECAP APWM controller found on AM33XX
187 To compile this driver as a module, choose M here: the module
188 will be called pwm-tiecap.
191 tristate "EHRPWM PWM support"
192 depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
194 PWM driver support for the EHRPWM controller found on AM33XX
197 To compile this driver as a module, choose M here: the module
198 will be called pwm-tiehrpwm.
202 default y if SOC_AM33XX && (PWM_TIECAP || PWM_TIEHRPWM)
204 PWM Subsystem driver support for AM33xx SOC.
206 PWM submodules require PWM config space access from submodule
207 drivers and require common parent driver support.
210 tristate "TWL4030/6030 PWM support"
211 depends on TWL4030_CORE
213 Generic PWM framework driver for TWL4030/6030.
215 To compile this driver as a module, choose M here: the module
216 will be called pwm-twl.
219 tristate "TWL4030/6030 PWM support for LED drivers"
220 depends on TWL4030_CORE
222 Generic PWM framework driver for TWL4030/6030 LED terminals.
224 To compile this driver as a module, choose M here: the module
225 will be called pwm-twl-led.
228 tristate "vt8500 PWM support"
229 depends on ARCH_VT8500
231 Generic PWM framework driver for vt8500.
233 To compile this driver as a module, choose M here: the module
234 will be called pwm-vt8500.