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 "i.MX PWM support"
69 Generic PWM framework driver for i.MX.
71 To compile this driver as a module, choose M here: the module
72 will be called pwm-imx.
75 tristate "Ingenic JZ4740 PWM support"
76 depends on MACH_JZ4740
78 Generic PWM framework driver for Ingenic JZ4740 based
81 To compile this driver as a module, choose M here: the module
82 will be called pwm-jz4740.
85 tristate "LPC32XX PWM support"
86 depends on ARCH_LPC32XX
88 Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
91 To compile this driver as a module, choose M here: the module
92 will be called pwm-lpc32xx.
95 tristate "Freescale MXS PWM support"
96 depends on ARCH_MXS && OF
99 Generic PWM framework driver for Freescale MXS.
101 To compile this driver as a module, choose M here: the module
102 will be called pwm-mxs.
105 tristate "NXP PCA9685 PWM driver"
106 depends on OF && REGMAP_I2C
108 Generic PWM framework driver for NXP PCA9685 LED controller.
110 To compile this driver as a module, choose M here: the module
111 will be called pwm-pca9685.
114 tristate "PKUnity NetBook-0916 PWM support"
117 Generic PWM framework driver for PKUnity NetBook-0916.
119 To compile this driver as a module, choose M here: the module
120 will be called pwm-puv3.
123 tristate "PXA PWM support"
126 Generic PWM framework driver for PXA.
128 To compile this driver as a module, choose M here: the module
129 will be called pwm-pxa.
131 config PWM_RENESAS_TPU
132 tristate "Renesas TPU PWM support"
133 depends on ARCH_SHMOBILE
135 This driver exposes the Timer Pulse Unit (TPU) PWM controller found
136 in Renesas chips through the PWM API.
138 To compile this driver as a module, choose M here: the module
139 will be called pwm-renesas-tpu.
142 tristate "Samsung PWM support"
143 depends on PLAT_SAMSUNG
145 Generic PWM framework driver for Samsung.
147 To compile this driver as a module, choose M here: the module
148 will be called pwm-samsung.
151 tristate "STMicroelectronics SPEAr PWM support"
152 depends on PLAT_SPEAR
155 Generic PWM framework driver for the PWM controller on ST
158 To compile this driver as a module, choose M here: the module
159 will be called pwm-spear.
162 tristate "NVIDIA Tegra PWM support"
163 depends on ARCH_TEGRA
165 Generic PWM framework driver for the PWFM controller found on NVIDIA
168 To compile this driver as a module, choose M here: the module
169 will be called pwm-tegra.
172 tristate "ECAP PWM support"
173 depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
175 PWM driver support for the ECAP APWM controller found on AM33XX
178 To compile this driver as a module, choose M here: the module
179 will be called pwm-tiecap.
182 tristate "EHRPWM PWM support"
183 depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
185 PWM driver support for the EHRPWM controller found on AM33XX
188 To compile this driver as a module, choose M here: the module
189 will be called pwm-tiehrpwm.
193 default y if SOC_AM33XX && (PWM_TIECAP || PWM_TIEHRPWM)
195 PWM Subsystem driver support for AM33xx SOC.
197 PWM submodules require PWM config space access from submodule
198 drivers and require common parent driver support.
201 tristate "TWL4030/6030 PWM support"
202 depends on TWL4030_CORE
204 Generic PWM framework driver for TWL4030/6030.
206 To compile this driver as a module, choose M here: the module
207 will be called pwm-twl.
210 tristate "TWL4030/6030 PWM support for LED drivers"
211 depends on TWL4030_CORE
213 Generic PWM framework driver for TWL4030/6030 LED terminals.
215 To compile this driver as a module, choose M here: the module
216 will be called pwm-twl-led.
219 tristate "vt8500 PWM support"
220 depends on ARCH_VT8500
222 Generic PWM framework driver for vt8500.
224 To compile this driver as a module, choose M here: the module
225 will be called pwm-vt8500.