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_IMX
  66         tristate "i.MX PWM support"
  67         depends on ARCH_MXC
  68         help
  69           Generic PWM framework driver for i.MX.
  70
  71           To compile this driver as a module, choose M here: the module
  72           will be called pwm-imx.
  73
  74 config PWM_JZ4740
  75         tristate "Ingenic JZ4740 PWM support"
  76         depends on MACH_JZ4740
  77         help
  78           Generic PWM framework driver for Ingenic JZ4740 based
  79           machines.
  80
  81           To compile this driver as a module, choose M here: the module
  82           will be called pwm-jz4740.
  83
  84 config PWM_LPC32XX
  85         tristate "LPC32XX PWM support"
  86         depends on ARCH_LPC32XX
  87         help
  88           Generic PWM framework driver for LPC32XX. The LPC32XX SOC has two
  89           PWM controllers.
  90
  91           To compile this driver as a module, choose M here: the module
  92           will be called pwm-lpc32xx.
  93
  94 config PWM_MXS
  95         tristate "Freescale MXS PWM support"
  96         depends on ARCH_MXS && OF
  97         select STMP_DEVICE
  98         help
  99           Generic PWM framework driver for Freescale MXS.
 100
 101           To compile this driver as a module, choose M here: the module
 102           will be called pwm-mxs.
 103
 104 config PWM_PCA9685
 105         tristate "NXP PCA9685 PWM driver"
 106         depends on OF && REGMAP_I2C
 107         help
 108           Generic PWM framework driver for NXP PCA9685 LED controller.
 109
 110           To compile this driver as a module, choose M here: the module
 111           will be called pwm-pca9685.
 112
 113 config PWM_PUV3
 114         tristate "PKUnity NetBook-0916 PWM support"
 115         depends on ARCH_PUV3
 116         help
 117           Generic PWM framework driver for PKUnity NetBook-0916.
 118
 119           To compile this driver as a module, choose M here: the module
 120           will be called pwm-puv3.
 121
 122 config PWM_PXA
 123         tristate "PXA PWM support"
 124         depends on ARCH_PXA
 125         help
 126           Generic PWM framework driver for PXA.
 127
 128           To compile this driver as a module, choose M here: the module
 129           will be called pwm-pxa.
 130
 131 config PWM_RENESAS_TPU
 132         tristate "Renesas TPU PWM support"
 133         depends on ARCH_SHMOBILE
 134         help
 135           This driver exposes the Timer Pulse Unit (TPU) PWM controller found
 136           in Renesas chips through the PWM API.
 137
 138           To compile this driver as a module, choose M here: the module
 139           will be called pwm-renesas-tpu.
 140
 141 config PWM_SAMSUNG
 142         tristate "Samsung PWM support"
 143         depends on PLAT_SAMSUNG
 144         help
 145           Generic PWM framework driver for Samsung.
 146
 147           To compile this driver as a module, choose M here: the module
 148           will be called pwm-samsung.
 149
 150 config PWM_SPEAR
 151         tristate "STMicroelectronics SPEAr PWM support"
 152         depends on PLAT_SPEAR
 153         depends on OF
 154         help
 155           Generic PWM framework driver for the PWM controller on ST
 156           SPEAr SoCs.
 157
 158           To compile this driver as a module, choose M here: the module
 159           will be called pwm-spear.
 160
 161 config PWM_TEGRA
 162         tristate "NVIDIA Tegra PWM support"
 163         depends on ARCH_TEGRA
 164         help
 165           Generic PWM framework driver for the PWFM controller found on NVIDIA
 166           Tegra SoCs.
 167
 168           To compile this driver as a module, choose M here: the module
 169           will be called pwm-tegra.
 170
 171 config  PWM_TIECAP
 172         tristate "ECAP PWM support"
 173         depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
 174         help
 175           PWM driver support for the ECAP APWM controller found on AM33XX
 176           TI SOC
 177
 178           To compile this driver as a module, choose M here: the module
 179           will be called pwm-tiecap.
 180
 181 config  PWM_TIEHRPWM
 182         tristate "EHRPWM PWM support"
 183         depends on SOC_AM33XX || ARCH_DAVINCI_DA8XX
 184         help
 185           PWM driver support for the EHRPWM controller found on AM33XX
 186           TI SOC
 187
 188           To compile this driver as a module, choose M here: the module
 189           will be called pwm-tiehrpwm.
 190
 191 config  PWM_TIPWMSS
 192         bool
 193         default y if SOC_AM33XX && (PWM_TIECAP || PWM_TIEHRPWM)
 194         help
 195           PWM Subsystem driver support for AM33xx SOC.
 196
 197           PWM submodules require PWM config space access from submodule
 198           drivers and require common parent driver support.
 199
 200 config PWM_TWL
 201         tristate "TWL4030/6030 PWM support"
 202         depends on TWL4030_CORE
 203         help
 204           Generic PWM framework driver for TWL4030/6030.
 205
 206           To compile this driver as a module, choose M here: the module
 207           will be called pwm-twl.
 208
 209 config PWM_TWL_LED
 210         tristate "TWL4030/6030 PWM support for LED drivers"
 211         depends on TWL4030_CORE
 212         help
 213           Generic PWM framework driver for TWL4030/6030 LED terminals.
 214
 215           To compile this driver as a module, choose M here: the module
 216           will be called pwm-twl-led.
 217
 218 config PWM_VT8500
 219         tristate "vt8500 PWM support"
 220         depends on ARCH_VT8500
 221         help
 222           Generic PWM framework driver for vt8500.
 223
 224           To compile this driver as a module, choose M here: the module
 225           will be called pwm-vt8500.
 226
 227 endif