diff options
| author | Andreas Dannenberg <dannenberg@ti.com> | 2019-06-04 18:08:18 -0500 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2019-07-17 11:13:18 -0400 |
| commit | ba7907c79c9cae0c7570a64f98c92da72eaa5dda (patch) | |
| tree | d2a2dfe2b37d6ee0e68dd9e051e9e4091c245bc9 /arch/arm/dts/k3-am654-base-board.dts | |
| parent | 7b6aed5136d29e7256befa6dcb8c1610f71c65aa (diff) | |
arm64: dts: k3-am654-base-board: Add I2C GPIO expander @ 0x38
The AM654 base board has a TCA9554/PCA9554-type GPIO expander on the
wkup_i2c0 bus at address 0x38 that is used to detect the presence of
daughter cards. Add a respective DTS description of this expander
to enable its use.
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Diffstat (limited to 'arch/arm/dts/k3-am654-base-board.dts')
| -rw-r--r-- | arch/arm/dts/k3-am654-base-board.dts | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm/dts/k3-am654-base-board.dts b/arch/arm/dts/k3-am654-base-board.dts index 248d60e89b..e73b9aa6b1 100644 --- a/arch/arm/dts/k3-am654-base-board.dts +++ b/arch/arm/dts/k3-am654-base-board.dts @@ -76,4 +76,11 @@ pinctrl-names = "default"; pinctrl-0 = <&wkup_i2c0_pins_default>; clock-frequency = <400000>; + + tca9554: gpio@38 { + compatible = "nxp,pca9554"; + reg = <0x38>; + gpio-controller; + #gpio-cells = <2>; + }; }; |