From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andreas Dannenberg Date: Wed, 8 May 2019 16:37:41 -0500 Subject: [U-Boot] [PATCH 08/18] arm64: dts: k3-am654-base-board: Add I2C GPIO expander @ 0x38 In-Reply-To: <20190508213751.23179-1-dannenberg@ti.com> References: <20190508213751.23179-1-dannenberg@ti.com> Message-ID: <20190508213751.23179-9-dannenberg@ti.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de 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 --- arch/arm/dts/k3-am654-base-board.dts | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm/dts/k3-am654-base-board.dts b/arch/arm/dts/k3-am654-base-board.dts index e31411e39d..c6a595be23 100644 --- a/arch/arm/dts/k3-am654-base-board.dts +++ b/arch/arm/dts/k3-am654-base-board.dts @@ -48,4 +48,11 @@ pinctrl-names = "default"; pinctrl-0 = <&wkup_i2c0_pins_default>; clock-frequency = <400000>; + + tca9554: gpio at 38 { + compatible = "nxp,pca9554"; + reg = <0x38>; + gpio-controller; + #gpio-cells = <2>; + }; }; -- 2.17.1