@@ -14,7 +14,8 @@ phrase "pin configuration node".
The pin configuration nodes act as a container for an arbitrary number of
subnodes. Each of these subnodes represents some desired configuration for a
pin, a group, or a list of pins or groups. This configuration for BM1880 SoC
-includes only pinmux as there is no pinconf support available in SoC.
+includes pinmux and various pin configuration parameters, such as pull-up,
+slew rate etc...
Each configuration node can consist of multiple nodes describing the pinmux
options. The name of each subnode is not important; all subnodes should be
@@ -84,6 +85,22 @@ Required Properties:
gpio66, gpio67, eth1, i2s0, i2s0_mclkin, i2s1, i2s1_mclkin,
spi0
+Optional Properties:
+
+- bias-disable: No arguments. Disable pin bias.
+- bias-pull-down: No arguments. The specified pins should be configured as
+ pull down.
+- bias-pull-up: No arguments. The specified pins should be configured as
+ pull up.
+- input-schmitt-enable: No arguments: Enable schmitt trigger for the specified
+ pins
+- input-schmitt-disable: No arguments: Disable schmitt trigger for the specified
+ pins
+- slew-rate: Integer. Sets slew rate for the specified pins.
+ Valid values are:
+ <0> - Slow
+ <1> - Fast
+
Example:
pinctrl: pinctrl@400 {
compatible = "bitmain,bm1880-pinctrl";
Document pinconf bindings for Bitmain BM1880 SoC. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> --- .../pinctrl/bitmain,bm1880-pinctrl.txt | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) -- 2.17.1