Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux

Pull removal of GENERIC_GPIO from Grant Likely:
 "GENERIC_GPIO now synonymous with GPIOLIB.  There are no longer any
  valid cases for enableing GENERIC_GPIO without GPIOLIB, even though it
  is possible to do so which has been causing confusion and breakage.
  This branch does the work to completely eliminate GENERIC_GPIO."

* tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux:
  gpio: update gpio Chinese documentation
  Remove GENERIC_GPIO config option
  Convert selectors of GENERIC_GPIO to GPIOLIB
  blackfin: force use of gpiolib
  m68k: coldfire: use gpiolib
  mips: pnx833x: remove requirement for GENERIC_GPIO
  openrisc: default GENERIC_GPIO to false
  avr32: default GENERIC_GPIO to false
  xtensa: remove explicit selection of GENERIC_GPIO
  sh: replace CONFIG_GENERIC_GPIO by CONFIG_GPIOLIB
  powerpc: remove redundant GENERIC_GPIO selection
  unicore32: default GENERIC_GPIO to false
  unicore32: remove unneeded select GENERIC_GPIO
  arm: plat-orion: use GPIO driver on CONFIG_GPIOLIB
  arm: remove redundant GENERIC_GPIO selection
  mips: alchemy: require gpiolib
  mips: txx9: change GENERIC_GPIO to GPIOLIB
  mips: loongson: use GPIO driver on CONFIG_GPIOLIB
  mips: remove redundant GENERIC_GPIO select

25 files changed, 50 insertions, 51 deletions

diff --git a/drivers/extcon/Kconfig b/drivers/extcon/Kconfig
index 5168a1324a65..3297301a42d4 100644
--- a/drivers/extcon/Kconfig
+++ b/drivers/extcon/Kconfig
@@ -16,7 +16,7 @@ comment "Extcon Device Drivers"
 
 config EXTCON_GPIO
         tristate "GPIO extcon support"
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         help
           Say Y here to enable GPIO based extcon support. Note that GPIO
           extcon supports single state per extcon instance.
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index c22eed9481e3..87d567089f13 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -38,7 +38,6 @@ config GPIO_DEVRES
 menuconfig GPIOLIB
         bool "GPIO Support"
         depends on ARCH_WANT_OPTIONAL_GPIOLIB || ARCH_REQUIRE_GPIOLIB
-        select GENERIC_GPIO
         help
           This enables GPIO support through the generic GPIO library.
           You only need to enable this, if you also want to enable
diff --git a/drivers/gpio/gpio-lpc32xx.c b/drivers/gpio/gpio-lpc32xx.c
index dda6a756a3d9..90a80eb688a9 100644
--- a/drivers/gpio/gpio-lpc32xx.c
+++ b/drivers/gpio/gpio-lpc32xx.c
@@ -255,7 +255,7 @@ static int __get_gpo_state_p3(struct lpc32xx_gpio_chip *group,
 }
 
 /*
- * GENERIC_GPIO primitives.
+ * GPIO primitives.
  */
 static int lpc32xx_gpio_dir_input_p012(struct gpio_chip *chip,
         unsigned pin)
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index adfee98486b1..631736e2e7ed 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -363,7 +363,7 @@ config I2C_BLACKFIN_TWI_CLK_KHZ
 
 config I2C_CBUS_GPIO
         tristate "CBUS I2C driver"
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         help
           Support for CBUS access using I2C API. Mostly relevant for Nokia
           Internet Tablets (770, N800 and N810).
@@ -436,7 +436,7 @@ config I2C_EG20T
 
 config I2C_GPIO
         tristate "GPIO-based bitbanging I2C"
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         select I2C_ALGOBIT
         help
           This is a very simple bitbanging I2C driver utilizing the
diff --git a/drivers/i2c/muxes/Kconfig b/drivers/i2c/muxes/Kconfig
index 5faf244d2476..f7f9865b8b89 100644
--- a/drivers/i2c/muxes/Kconfig
+++ b/drivers/i2c/muxes/Kconfig
@@ -7,7 +7,7 @@ menu "Multiplexer I2C Chip support"
 
 config I2C_ARB_GPIO_CHALLENGE
         tristate "GPIO-based I2C arbitration"
-        depends on GENERIC_GPIO && OF
+        depends on GPIOLIB && OF
         help
           If you say yes to this option, support will be included for an
           I2C multimaster arbitration scheme using GPIOs and a challenge &
@@ -19,7 +19,7 @@ config I2C_ARB_GPIO_CHALLENGE
 
 config I2C_MUX_GPIO
         tristate "GPIO-based I2C multiplexer"
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         help
           If you say yes to this option, support will be included for a
           GPIO based I2C multiplexer. This driver provides access to
diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index 6a195d5e90ff..62a2c0e4cc99 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -175,7 +175,7 @@ config KEYBOARD_EP93XX
 
 config KEYBOARD_GPIO
         tristate "GPIO Buttons"
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         help
           This driver implements support for buttons connected
           to GPIO pins of various CPUs (and some other chips).
@@ -190,7 +190,7 @@ config KEYBOARD_GPIO
 
 config KEYBOARD_GPIO_POLLED
         tristate "Polled GPIO buttons"
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         select INPUT_POLLDEV
         help
           This driver implements support for buttons connected
@@ -241,7 +241,7 @@ config KEYBOARD_TCA8418
 
 config KEYBOARD_MATRIX
         tristate "GPIO driven matrix keypad support"
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         select INPUT_MATRIXKMAP
         help
           Enable support for GPIO driven matrix keypad.
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index af80928a46b4..bb698e1f9e42 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -214,7 +214,7 @@ config INPUT_APANEL
 config INPUT_GP2A
         tristate "Sharp GP2AP002A00F I2C Proximity/Opto sensor driver"
         depends on I2C
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         help
           Say Y here if you have a Sharp GP2AP002A00F proximity/als combo-chip
           hooked to an I2C bus.
@@ -224,7 +224,7 @@ config INPUT_GP2A
 
 config INPUT_GPIO_TILT_POLLED
         tristate "Polled GPIO tilt switch"
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         select INPUT_POLLDEV
         help
           This driver implements support for tilt switches connected
@@ -472,7 +472,7 @@ config INPUT_PWM_BEEPER
 
 config INPUT_GPIO_ROTARY_ENCODER
         tristate "Rotary encoders connected to GPIO pins"
-        depends on GPIOLIB && GENERIC_GPIO
+        depends on GPIOLIB
         help
           Say Y here to add support for rotary encoders connected to GPIO lines.
           Check file:Documentation/input/rotary-encoder.txt for more
@@ -484,7 +484,7 @@ config INPUT_GPIO_ROTARY_ENCODER
 config INPUT_RB532_BUTTON
         tristate "Mikrotik Routerboard 532 button interface"
         depends on MIKROTIK_RB532
-        depends on GPIOLIB && GENERIC_GPIO
+        depends on GPIOLIB
         select INPUT_POLLDEV
         help
           Say Y here if you want support for the S1 button built into
diff --git a/drivers/input/mouse/Kconfig b/drivers/input/mouse/Kconfig
index 802bd6a72d73..effa9c5f2c5c 100644
--- a/drivers/input/mouse/Kconfig
+++ b/drivers/input/mouse/Kconfig
@@ -295,7 +295,7 @@ config MOUSE_VSXXXAA
 
 config MOUSE_GPIO
         tristate "GPIO mouse"
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         select INPUT_POLLDEV
         help
           This driver simulates a mouse on GPIO lines of various CPUs (and some
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index d44806d41b44..ef992293598a 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -173,7 +173,7 @@ config LEDS_PCA9532_GPIO
 config LEDS_GPIO
         tristate "LED Support for GPIO connected LEDs"
         depends on LEDS_CLASS
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         help
           This option enables support for the LEDs connected to GPIO
           outputs. To be useful the particular board must have LEDs
@@ -362,7 +362,7 @@ config LEDS_INTEL_SS4200
 config LEDS_LT3593
         tristate "LED driver for LT3593 controllers"
         depends on LEDS_CLASS
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         help
           This option enables support for LEDs driven by a Linear Technology
           LT3593 controller. This controller uses a special one-wire pulse
@@ -431,7 +431,7 @@ config LEDS_ASIC3
 
 config LEDS_RENESAS_TPU
         bool "LED support for Renesas TPU"
-        depends on LEDS_CLASS=y && HAVE_CLK && GENERIC_GPIO
+        depends on LEDS_CLASS=y && HAVE_CLK && GPIOLIB
         help
           This option enables build of the LED TPU platform driver,
           suitable to drive any TPU channel on newer Renesas SoCs.
diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig
index 3ed17c4d4358..c26938382f64 100644
--- a/drivers/mtd/maps/Kconfig
+++ b/drivers/mtd/maps/Kconfig
@@ -419,7 +419,7 @@ config MTD_BFIN_ASYNC
 
 config MTD_GPIO_ADDR
         tristate "GPIO-assisted Flash Chip Support"
-        depends on GENERIC_GPIO || GPIOLIB
+        depends on GPIOLIB
         depends on MTD_COMPLEX_MAPPINGS
         help
           Map driver which allows flashes to be partially physically addressed
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index 81bf5e52601e..5d54ad32697f 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -89,7 +89,7 @@ config MTD_NAND_H1900
 
 config MTD_NAND_GPIO
         tristate "GPIO NAND Flash driver"
-        depends on GENERIC_GPIO && ARM
+        depends on GPIOLIB && ARM
         help
           This enables a GPIO based NAND flash driver.
 
diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index 450345261bd3..1e11f2bfd9ce 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -126,7 +126,7 @@ config MDIO_BITBANG
 
 config MDIO_GPIO
         tristate "Support for GPIO lib-based bitbanged MDIO buses"
-        depends on MDIO_BITBANG && GENERIC_GPIO
+        depends on MDIO_BITBANG && GPIOLIB
         ---help---
           Supports GPIO lib-based MDIO busses.
 
diff --git a/drivers/pinctrl/sh-pfc/Kconfig b/drivers/pinctrl/sh-pfc/Kconfig
index 0e1f99c33d47..f8a2ae413c7f 100644
--- a/drivers/pinctrl/sh-pfc/Kconfig
+++ b/drivers/pinctrl/sh-pfc/Kconfig
@@ -6,7 +6,7 @@ if ARCH_SHMOBILE || SUPERH
 
 config PINCTRL_SH_PFC
         # XXX move off the gpio dependency
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         select GPIO_SH_PFC if ARCH_REQUIRE_GPIOLIB
         select PINMUX
         select PINCONF
@@ -40,19 +40,19 @@ config PINCTRL_PFC_R8A7779
 config PINCTRL_PFC_SH7203
         def_bool y
         depends on CPU_SUBTYPE_SH7203
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         select PINCTRL_SH_PFC
 
 config PINCTRL_PFC_SH7264
         def_bool y
         depends on CPU_SUBTYPE_SH7264
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         select PINCTRL_SH_PFC
 
 config PINCTRL_PFC_SH7269
         def_bool y
         depends on CPU_SUBTYPE_SH7269
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         select PINCTRL_SH_PFC
 
 config PINCTRL_PFC_SH7372
@@ -68,55 +68,55 @@ config PINCTRL_PFC_SH73A0
 config PINCTRL_PFC_SH7720
         def_bool y
         depends on CPU_SUBTYPE_SH7720
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         select PINCTRL_SH_PFC
 
 config PINCTRL_PFC_SH7722
         def_bool y
         depends on CPU_SUBTYPE_SH7722
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         select PINCTRL_SH_PFC
 
 config PINCTRL_PFC_SH7723
         def_bool y
         depends on CPU_SUBTYPE_SH7723
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         select PINCTRL_SH_PFC
 
 config PINCTRL_PFC_SH7724
         def_bool y
         depends on CPU_SUBTYPE_SH7724
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         select PINCTRL_SH_PFC
 
 config PINCTRL_PFC_SH7734
         def_bool y
         depends on CPU_SUBTYPE_SH7734
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         select PINCTRL_SH_PFC
 
 config PINCTRL_PFC_SH7757
         def_bool y
         depends on CPU_SUBTYPE_SH7757
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         select PINCTRL_SH_PFC
 
 config PINCTRL_PFC_SH7785
         def_bool y
         depends on CPU_SUBTYPE_SH7785
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         select PINCTRL_SH_PFC
 
 config PINCTRL_PFC_SH7786
         def_bool y
         depends on CPU_SUBTYPE_SH7786
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         select PINCTRL_SH_PFC
 
 config PINCTRL_PFC_SHX3
         def_bool y
         depends on CPU_SUBTYPE_SHX3
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         select PINCTRL_SH_PFC
 
 endif
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index a5d97eaee99e..8bb26446037e 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -66,7 +66,7 @@ config REGULATOR_USERSPACE_CONSUMER
 
 config REGULATOR_GPIO
         tristate "GPIO regulator support"
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         help
           This driver provides support for regulators that can be
           controlled via gpios.
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index 141d8c10b764..92a9345d7a6b 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -62,7 +62,7 @@ config SPI_ALTERA
 
 config SPI_ATH79
         tristate "Atheros AR71XX/AR724X/AR913X SPI controller driver"
-        depends on ATH79 && GENERIC_GPIO
+        depends on ATH79 && GPIOLIB
         select SPI_BITBANG
         help
           This enables support for the SPI controller present on the
@@ -175,7 +175,7 @@ config SPI_FALCON
 
 config SPI_GPIO
         tristate "GPIO-based bitbanging SPI Master"
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         select SPI_BITBANG
         help
           This simple GPIO bitbanging SPI master uses the arch-neutral GPIO
@@ -259,7 +259,7 @@ config SPI_FSL_ESPI
 
 config SPI_OC_TINY
         tristate "OpenCores tiny SPI"
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         select SPI_BITBANG
         help
           This is the driver for OpenCores tiny SPI master controller.
@@ -457,7 +457,7 @@ config SPI_TOPCLIFF_PCH
 
 config SPI_TXX9
         tristate "Toshiba TXx9 SPI controller"
-        depends on GENERIC_GPIO && CPU_TX49XX
+        depends on GPIOLIB && CPU_TX49XX
         help
           SPI driver for Toshiba TXx9 MIPS SoCs
 
diff --git a/drivers/staging/android/Kconfig b/drivers/staging/android/Kconfig
index 9f61d46da157..c0c95be0f969 100644
--- a/drivers/staging/android/Kconfig
+++ b/drivers/staging/android/Kconfig
@@ -54,7 +54,7 @@ config ANDROID_TIMED_OUTPUT
 
 config ANDROID_TIMED_GPIO
         tristate "Android timed gpio driver"
-        depends on GENERIC_GPIO && ANDROID_TIMED_OUTPUT
+        depends on GPIOLIB && ANDROID_TIMED_OUTPUT
         default n
 
 config ANDROID_LOW_MEMORY_KILLER
diff --git a/drivers/staging/iio/accel/Kconfig b/drivers/staging/iio/accel/Kconfig
index e2e786dc9c7b..ad45dfbdf417 100644
--- a/drivers/staging/iio/accel/Kconfig
+++ b/drivers/staging/iio/accel/Kconfig
@@ -61,7 +61,7 @@ config LIS3L02DQ
         depends on SPI
         select IIO_TRIGGER if IIO_BUFFER
         depends on !IIO_BUFFER || IIO_KFIFO_BUF
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         help
           Say yes here to build SPI support for the ST microelectronics
           accelerometer. The driver supplies direct access via sysfs files
diff --git a/drivers/staging/iio/adc/Kconfig b/drivers/staging/iio/adc/Kconfig
index d990829008ff..cabc7a367db5 100644
--- a/drivers/staging/iio/adc/Kconfig
+++ b/drivers/staging/iio/adc/Kconfig
@@ -73,7 +73,7 @@ config AD7780
 config AD7816
         tristate "Analog Devices AD7816/7/8 temperature sensor and ADC driver"
         depends on SPI
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         help
           Say yes here to build support for Analog Devices AD7816/7/8
           temperature sensors and ADC.
diff --git a/drivers/staging/iio/addac/Kconfig b/drivers/staging/iio/addac/Kconfig
index 698a8970b372..e6795e0bed1d 100644
--- a/drivers/staging/iio/addac/Kconfig
+++ b/drivers/staging/iio/addac/Kconfig
@@ -5,7 +5,7 @@ menu "Analog digital bi-direction converters"
 
 config ADT7316
         tristate "Analog Devices ADT7316/7/8 ADT7516/7/9 temperature sensor, ADC and DAC driver"
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         help
           Say yes here to build support for Analog Devices ADT7316, ADT7317, ADT7318
           and ADT7516, ADT7517, ADT7519 temperature sensors, ADC and DAC.
diff --git a/drivers/staging/iio/resolver/Kconfig b/drivers/staging/iio/resolver/Kconfig
index 49f69ef986fc..ce360f163216 100644
--- a/drivers/staging/iio/resolver/Kconfig
+++ b/drivers/staging/iio/resolver/Kconfig
@@ -13,7 +13,7 @@ config AD2S90
 config AD2S1200
         tristate "Analog Devices ad2s1200/ad2s1205 driver"
         depends on SPI
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         help
           Say yes here to build support for Analog Devices spi resolver
           to digital converters, ad2s1200 and ad2s1205, provides direct access
@@ -22,7 +22,7 @@ config AD2S1200
 config AD2S1210
         tristate "Analog Devices ad2s1210 driver"
         depends on SPI
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         help
           Say yes here to build support for Analog Devices spi resolver
           to digital converters, ad2s1210, provides direct access via sysfs.
diff --git a/drivers/staging/iio/trigger/Kconfig b/drivers/staging/iio/trigger/Kconfig
index d44d3ad26fa5..1a051da62505 100644
--- a/drivers/staging/iio/trigger/Kconfig
+++ b/drivers/staging/iio/trigger/Kconfig
@@ -14,7 +14,7 @@ config IIO_PERIODIC_RTC_TRIGGER
 
 config IIO_GPIO_TRIGGER
         tristate "GPIO trigger"
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         help
           Provides support for using GPIO pins as IIO triggers.
 
diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig
index aab2ab2fbc90..371d0e74e909 100644
--- a/drivers/usb/phy/Kconfig
+++ b/drivers/usb/phy/Kconfig
@@ -128,7 +128,7 @@ config TWL6030_USB
 
 config USB_GPIO_VBUS
         tristate "GPIO based peripheral-only VBUS sensing 'transceiver'"
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         help
           Provides simple GPIO VBUS sensing for controllers with an
           internal transceiver via the usb_phy interface, and
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index c04ccdf60eaa..1534cf3c1423 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -2483,7 +2483,7 @@ config FB_SSD1307
         tristate "Solomon SSD1307 framebuffer support"
         depends on FB && I2C
         depends on OF
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         select FB_SYS_FOPS
         select FB_SYS_FILLRECT
         select FB_SYS_COPYAREA
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index 2e166c3fc4c3..d5ab6583f440 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -36,14 +36,14 @@ config LCD_CORGI
 
 config LCD_L4F00242T03
         tristate "Epson L4F00242T03 LCD"
-        depends on SPI_MASTER && GENERIC_GPIO
+        depends on SPI_MASTER && GPIOLIB
         help
           SPI driver for Epson L4F00242T03. This provides basic support
           for init and powering the LCD up/down through a sysfs interface.
 
 config LCD_LMS283GF05
         tristate "Samsung LMS283GF05 LCD"
-        depends on SPI_MASTER && GENERIC_GPIO
+        depends on SPI_MASTER && GPIOLIB
         help
           SPI driver for Samsung LMS283GF05. This provides basic support
           for powering the LCD up/down through a sysfs interface.
diff --git a/drivers/w1/masters/Kconfig b/drivers/w1/masters/Kconfig
index e8ca63a82b97..2bd1257dcc1c 100644
--- a/drivers/w1/masters/Kconfig
+++ b/drivers/w1/masters/Kconfig
@@ -50,7 +50,7 @@ config W1_MASTER_DS1WM
 
 config W1_MASTER_GPIO
         tristate "GPIO 1-wire busmaster"
-        depends on GENERIC_GPIO
+        depends on GPIOLIB
         help
           Say Y here if you want to communicate with your 1-wire devices using
           GPIO pins. This driver uses the GPIO API to control the wire.