drivers/pwm/Kconfig

   1 menuconfig PWM
   2         bool "Pulse-Width Modulation (PWM) Support"
   3         help
   4           Generic Pulse-Width Modulation (PWM) support.
   5
   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
  11           display backlights.
  12
  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.
  19
  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.
  26
  27           If unsure, say no.
  28
  29 if PWM
  30
  31 config PWM_SYSFS
  32         bool
  33         default y if SYSFS
  34
  35 config PWM_AB8500
  36         tristate "AB8500 PWM support"
  37         depends on AB8500_CORE && ARCH_U8500
  38         help
  39           Generic PWM framework driver for Analog Baseband AB8500.
  40
  41           To compile this driver as a module, choose M here: the module
  42           will be called pwm-ab8500.
  43
  44 config PWM_ATMEL_TCB
  45         tristate "Atmel TC Block PWM support"
  46         depends on ATMEL_TCLIB && OF
  47         help
  48           Generic PWM framework driver for Atmel Timer Counter Block.
  49
  50           A Timer Counter Block provides 6 PWM devices grouped by 2.
  51           Devices in a given group must have the same period.
  52
  53           To compile this driver as a module, choose M here: the module
  54           will be called pwm-atmel-tcb.
  55
  56 config PWM_BFIN
  57         tristate "Blackfin PWM support"
  58         depends on BFIN_GPTIMERS
  59         help
  60           Generic PWM framework driver for Blackfin.
  61
  62           To compile this driver as a module, choose M here: the module
  63           will be called pwm-bfin.
  64
  65 config PWM_EP93XX
  66         tristate "Cirrus Logic EP93xx PWM support"
  67         depends on ARCH_EP93XX
  68         help
  69           Generic PWM framework driver for Cirrus Logic EP93xx.
  70
  71           To compile this driver as a module, choose M here: the module
  72           will be called pwm-ep93xx.
  73
  74 config PWM_IMX
  75         tristate "i.MX PWM support"
  76         depends on ARCH_MXC
  77         help
  78           Generic PWM framework driver for i.MX.
  79
  80           To compile this driver as a module, choose M here: the module
  81           will be called pwm-imx.
  82
  83 config PWM_JZ4740
  84         tristate "Ingenic JZ4740 PWM support"
  85         depends on MACH_JZ4740
  86         help
  87           Generic PWM framework driver for Ingenic JZ4740 based
  88           machines.
  89
  90           To compile this driver as a module, choose M here: the module
  91           will be called pwm-jz4740.
  92
  93 config PWM_LPC32XX
  94         tristate "LPC32XX PWM support"
  95         depends on ARCH_LPC32XX
  96         help
  97           Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
  98           PWM controllers.
  99
 100           To compile this driver as a module, choose M here: the module
 101           will be called pwm-lpc32xx.
 102
 103 config PWM_MXS
 104         tristate "Freescale MXS PWM support"
 105         depends on ARCH_MXS && OF
 106         select STMP_DEVICE
 107         help
 108           Generic PWM framework driver for Freescale MXS.
 109
 110           To compile this driver as a module, choose M here: the module
 111           will be called pwm-mxs.
 112
 113 config PWM_PCA9685
 114         tristate "NXP PCA9685 PWM driver"
 115         depends on OF && REGMAP_I2C
 116         help
 117           Generic PWM framework driver for NXP PCA9685 LED controller.
 118
 119           To compile this driver as a module, choose M here: the module
 120           will be called pwm-pca9685.
 121
 122 config PWM_PUV3
 123         tristate "PKUnity NetBook-0916 PWM support"
 124         depends on ARCH_PUV3
 125         help
 126           Generic PWM framework driver for PKUnity NetBook-0916.
 127
 128           To compile this driver as a module, choose M here: the module
 129           will be called pwm-puv3.
 130
 131 config PWM_PXA
 132         tristate "PXA PWM support"
 133         depends on ARCH_PXA
 134         help
 135           Generic PWM framework driver for PXA.
 136
 137           To compile this driver as a module, choose M here: the module
 138           will be called pwm-pxa.
 139
 140 config PWM_RENESAS_TPU
 141         tristate "Renesas TPU PWM support"
 142         depends on ARCH_SHMOBILE
 143         help
 144           This driver exposes the Timer Pulse Unit (TPU) PWM controller found
 145           in Renesas chips through the PWM API.
 146
 147           To compile this driver as a module, choose M here: the module
 148           will be called pwm-renesas-tpu.
 149
 150 config PWM_SAMSUNG
 151         tristate "Samsung PWM support"
 152         depends on PLAT_SAMSUNG
 153         help
 154           Generic PWM framework driver for Samsung.
 155
 156           To compile this driver as a module, choose M here: the module
 157           will be called pwm-samsung.
 158
 159 config PWM_SPEAR
 160         tristate "STMicroelectronics SPEAr PWM support"
 161         depends on PLAT_SPEAR
 162         depends on OF
 163         help
 164           Generic PWM framework driver for the PWM controller on ST
 165           SPEAr SoCs.
 166
 167           To compile this driver as a module, choose M here: the module
 168           will be called pwm-spear.
 169
 170 config PWM_TEGRA
 171         tristate "NVIDIA Tegra PWM support"
 172         depends on ARCH_TEGRA
 173         help
 174           Generic PWM framework driver for the PWFM controller found on NVIDIA
 175           Tegra SoCs.
 176
 177           To compile this driver as a module, choose M here: the module
 178           will be called pwm-tegra.
 179
 180 config  PWM_TIECAP
 181         tristate "ECAP PWM support"
 182         depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
 183         help
 184           PWM driver support for the ECAP APWM controller found on AM33XX
 185           TI SOC
 186
 187           To compile this driver as a module, choose M here: the module
 188           will be called pwm-tiecap.
 189
 190 config  PWM_TIEHRPWM
 191         tristate "EHRPWM PWM support"
 192         depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
 193         help
 194           PWM driver support for the EHRPWM controller found on AM33XX
 195           TI SOC
 196
 197           To compile this driver as a module, choose M here: the module
 198           will be called pwm-tiehrpwm.
 199
 200 config  PWM_TIPWMSS
 201         bool
 202         default y if SOC_AM33XX && (PWM_TIECAP || PWM_TIEHRPWM)
 203         help
 204           PWM Subsystem driver support for AM33xx SOC.
 205
 206           PWM submodules require PWM config space access from submodule
 207           drivers and require common parent driver support.
 208
 209 config PWM_TWL
 210         tristate "TWL4030/6030 PWM support"
 211         depends on TWL4030_CORE
 212         help
 213           Generic PWM framework driver for TWL4030/6030.
 214
 215           To compile this driver as a module, choose M here: the module
 216           will be called pwm-twl.
 217
 218 config PWM_TWL_LED
 219         tristate "TWL4030/6030 PWM support for LED drivers"
 220         depends on TWL4030_CORE
 221         help
 222           Generic PWM framework driver for TWL4030/6030 LED terminals.
 223
 224           To compile this driver as a module, choose M here: the module
 225           will be called pwm-twl-led.
 226
 227 config PWM_VT8500
 228         tristate "vt8500 PWM support"
 229         depends on ARCH_VT8500
 230         help
 231           Generic PWM framework driver for vt8500.
 232
 233           To compile this driver as a module, choose M here: the module
 234           will be called pwm-vt8500.
 235
 236 endif