diff options
| author | Peng Fan <van.freenix@gmail.com> | 2016-05-03 10:02:23 +0800 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2016-05-17 09:54:43 -0600 |
| commit | 9300f711baac8a181f70d7f64978e4bbadd4ac5c (patch) | |
| tree | c1ae11e312c903277d9333d0a0fecc4fa80ca3e2 /drivers/gpio/Kconfig | |
| parent | 7a3eff4ce962de50bd9a1d83a9fce178c04999d3 (diff) | |
| download | u-boot-9300f711baac8a181f70d7f64978e4bbadd4ac5c.tar.gz | |
dm: gpio: introduce 74x164 driver
Introduce driver to support "fairchild,74hc595" devices.
1. Take linux drivers/drivers/gpio/gpio-74x164.c as reference.
2. Following the naming used in Linux driver with gen_7x164 as the prefix.
3. Enable CONFIG_DM_74X164 to use this driver.
4. Follow Documentation/devicetree/bindings/gpio/gpio-74x164.txt to add device
nodes
5. Tested on i.MX6 UltraLite with 74LV595 using gpio command and oscillograph.
Signed-off-by: Peng Fan <van.freenix@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Chin Liang See <clsee@altera.com>
Cc: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
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 e6337c24d8..93a7e8c6c2 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -143,6 +143,14 @@ config ZYNQ_GPIO help Supports GPIO access on Zynq SoC. +config DM_74X164 + bool "74x164 serial-in/parallel-out 8-bits shift register" + depends on DM_GPIO + help + Driver for 74x164 compatible serial-in/parallel-out 8-outputs + shift registers, such as 74lv165, 74hc595. + This driver can be used to provide access to more gpio outputs. + config DM_PCA953X bool "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports" depends on DM_GPIO |