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| author | Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> | 2015-04-20 22:11:14 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2015-04-27 08:09:34 +0200 |
| commit | 43ba8232ab75133227cef3a7c4b7ae22703c53c1 (patch) | |
| tree | 29702c4e8adeebb168b57f430068505b3d87d7dc /drivers/gpio/Kconfig | |
| parent | a553a4dc731e3f4ce0936361ca508939e76a9dce (diff) | |
| download | barebox-43ba8232ab75133227cef3a7c4b7ae22703c53c1.tar.gz barebox-43ba8232ab75133227cef3a7c4b7ae22703c53c1.tar.xz | |
gpio: Add driver for 74x164 compatible shift-registers
A 74x164 shift register can be seen as a SPI attached GPIO expander.
This adds a driver for those poor-man expanders based on the Linux
driver.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers/gpio/Kconfig')
| -rw-r--r-- | drivers/gpio/Kconfig | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index c8b1efb1f2..9cb22613dd 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -13,6 +13,14 @@ config GPIO_DIGIC bool "GPIO support for Canon DIGIC" depends on ARCH_DIGIC +config GPIO_74164 + bool "Generic SPI attached shift register" + depends on SPI + help + Driver for 74x164 compatible serial-in/parallel-out 8-outputs + shift registers. This driver can be used to provide access + to more gpio outputs. + config GPIO_BCM2835 bool "GPIO support for BCM2835" depends on ARCH_BCM2835 |