leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ARM: dts: dra72/1-evm: add pcf8575 used for lcd

Browse Source 
DRA72 and DRA718 EVM boards has a pcf8575 gpio expander
which is used for the LCD/LEDs and USB vbus detection.
Add the node for the pcf8575.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Tomi Valkeinen 2017-01-20 13:52:20 -06:00 committed by Tony Lindgren
parent 220fbc13c2
commit d8e166b4ad
2 changed files with 14 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
arch/arm/boot/dts/dra71-evm.dts
View File

@ -138,6 +138,11 @@
};
};
&pcf_lcd {
interrupt-parent = <&gpio7>;
interrupts = <31 IRQ_TYPE_EDGE_FALLING>;
};
&pcf_gpio_21 {
interrupt-parent = <&gpio7>;
interrupts = <31 IRQ_TYPE_EDGE_FALLING>;

9
arch/arm/boot/dts/dra72-evm-common.dtsi
View File

@ -220,6 +220,15 @@
status = "okay";
clock-frequency = <400000>;
pcf_lcd: gpio@20 {
compatible = "nxp,pcf8575";
reg = <0x20>;
gpio-controller;
#gpio-cells = <2>;
interrupt-controller;
#interrupt-cells = <2>;
};
pcf_gpio_21: gpio@21 {
compatible = "ti,pcf8575", "nxp,pcf8575";
reg = <0x21>;