Root/
| 1 | menuconfig PWM |
| 2 | bool "Pulse-Width Modulation (PWM) Support" |
| 3 | depends on !PUV3_PWM |
| 4 | help |
| 5 | Generic Pulse-Width Modulation (PWM) support. |
| 6 | |
| 7 | In Pulse-Width Modulation, a variation of the width of pulses |
| 8 | in a rectangular pulse signal is used as a means to alter the |
| 9 | average power of the signal. Applications include efficient |
| 10 | power delivery and voltage regulation. In computer systems, |
| 11 | PWMs are commonly used to control fans or the brightness of |
| 12 | display backlights. |
| 13 | |
| 14 | This framework provides a generic interface to PWM devices |
| 15 | within the Linux kernel. On the driver side it provides an API |
| 16 | to register and unregister a PWM chip, an abstraction of a PWM |
| 17 | controller, that supports one or more PWM devices. Client |
| 18 | drivers can request PWM devices and use the generic framework |
| 19 | to configure as well as enable and disable them. |
| 20 | |
| 21 | This generic framework replaces the legacy PWM framework which |
| 22 | allows only a single driver implementing the required API. Not |
| 23 | all legacy implementations have been ported to the framework |
| 24 | yet. The framework provides an API that is backward compatible |
| 25 | with the legacy framework so that existing client drivers |
| 26 | continue to work as expected. |
| 27 | |
| 28 | If unsure, say no. |
| 29 | |
| 30 | if PWM |
| 31 | |
| 32 | config PWM_BFIN |
| 33 | tristate "Blackfin PWM support" |
| 34 | depends on BFIN_GPTIMERS |
| 35 | help |
| 36 | Generic PWM framework driver for Blackfin. |
| 37 | |
| 38 | To compile this driver as a module, choose M here: the module |
| 39 | will be called pwm-bfin. |
| 40 | |
| 41 | config PWM_IMX |
| 42 | tristate "i.MX pwm support" |
| 43 | depends on ARCH_MXC |
| 44 | help |
| 45 | Generic PWM framework driver for i.MX. |
| 46 | |
| 47 | To compile this driver as a module, choose M here: the module |
| 48 | will be called pwm-imx. |
| 49 | |
| 50 | config PWM_JZ4740 |
| 51 | tristate "Ingenic JZ4740 PWM support" |
| 52 | depends on MACH_JZ4740 |
| 53 | help |
| 54 | Generic PWM framework driver for Ingenic JZ4740 based |
| 55 | machines. |
| 56 | |
| 57 | To compile this driver as a module, choose M here: the module |
| 58 | will be called pwm-jz4740. |
| 59 | |
| 60 | config PWM_LPC32XX |
| 61 | tristate "LPC32XX PWM support" |
| 62 | depends on ARCH_LPC32XX |
| 63 | help |
| 64 | Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two |
| 65 | PWM controllers. |
| 66 | |
| 67 | To compile this driver as a module, choose M here: the module |
| 68 | will be called pwm-lpc32xx. |
| 69 | |
| 70 | config PWM_MXS |
| 71 | tristate "Freescale MXS PWM support" |
| 72 | depends on ARCH_MXS && OF |
| 73 | select STMP_DEVICE |
| 74 | help |
| 75 | Generic PWM framework driver for Freescale MXS. |
| 76 | |
| 77 | To compile this driver as a module, choose M here: the module |
| 78 | will be called pwm-mxs. |
| 79 | |
| 80 | config PWM_PXA |
| 81 | tristate "PXA PWM support" |
| 82 | depends on ARCH_PXA |
| 83 | help |
| 84 | Generic PWM framework driver for PXA. |
| 85 | |
| 86 | To compile this driver as a module, choose M here: the module |
| 87 | will be called pwm-pxa. |
| 88 | |
| 89 | config PWM_SAMSUNG |
| 90 | tristate "Samsung pwm support" |
| 91 | depends on PLAT_SAMSUNG |
| 92 | help |
| 93 | Generic PWM framework driver for Samsung. |
| 94 | |
| 95 | To compile this driver as a module, choose M here: the module |
| 96 | will be called pwm-samsung. |
| 97 | |
| 98 | config PWM_TEGRA |
| 99 | tristate "NVIDIA Tegra PWM support" |
| 100 | depends on ARCH_TEGRA |
| 101 | help |
| 102 | Generic PWM framework driver for the PWFM controller found on NVIDIA |
| 103 | Tegra SoCs. |
| 104 | |
| 105 | To compile this driver as a module, choose M here: the module |
| 106 | will be called pwm-tegra. |
| 107 | |
| 108 | config PWM_TIECAP |
| 109 | tristate "ECAP PWM support" |
| 110 | depends on SOC_AM33XX |
| 111 | help |
| 112 | PWM driver support for the ECAP APWM controller found on AM33XX |
| 113 | TI SOC |
| 114 | |
| 115 | To compile this driver as a module, choose M here: the module |
| 116 | will be called pwm-tiecap. |
| 117 | |
| 118 | config PWM_TIEHRPWM |
| 119 | tristate "EHRPWM PWM support" |
| 120 | depends on SOC_AM33XX |
| 121 | help |
| 122 | PWM driver support for the EHRPWM controller found on AM33XX |
| 123 | TI SOC |
| 124 | |
| 125 | To compile this driver as a module, choose M here: the module |
| 126 | will be called pwm-tiehrpwm. |
| 127 | |
| 128 | config PWM_VT8500 |
| 129 | tristate "vt8500 pwm support" |
| 130 | depends on ARCH_VT8500 |
| 131 | help |
| 132 | Generic PWM framework driver for vt8500. |
| 133 | |
| 134 | To compile this driver as a module, choose M here: the module |
| 135 | will be called pwm-vt8500. |
| 136 | |
| 137 | endif |
| 138 |
Branches:
ben-wpan
ben-wpan-stefan
javiroman/ks7010
jz-2.6.34
jz-2.6.34-rc5
jz-2.6.34-rc6
jz-2.6.34-rc7
jz-2.6.35
jz-2.6.36
jz-2.6.37
jz-2.6.38
jz-2.6.39
jz-3.0
jz-3.1
jz-3.11
jz-3.12
jz-3.13
jz-3.15
jz-3.16
jz-3.18-dt
jz-3.2
jz-3.3
jz-3.4
jz-3.5
jz-3.6
jz-3.6-rc2-pwm
jz-3.9
jz-3.9-clk
jz-3.9-rc8
jz47xx
jz47xx-2.6.38
master
Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9
