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[3/5] ARM: dts: cm-t335: add support for I2C GPIO expander

Message ID 1449996939-13901-4-git-send-email-uri.mashiach@compulab.co.il (mailing list archive)
State New, archived
Headers show

Commit Message

Uri Mashiach Dec. 13, 2015, 8:55 a.m. UTC 
The I2C GPIO expander (PCA9555) adds 16 GPIOs to the module.

Signed-off-by: Uri Mashiach <uri.mashiach@compulab.co.il>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
---
 arch/arm/boot/dts/am335x-sbc-t335.dts | 11 +++++++++++
 1 file changed, 11 insertions(+)
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Patch

diff --git a/arch/arm/boot/dts/am335x-sbc-t335.dts b/arch/arm/boot/dts/am335x-sbc-t335.dts
index 9e98445..4a5177e 100644
--- a/arch/arm/boot/dts/am335x-sbc-t335.dts
+++ b/arch/arm/boot/dts/am335x-sbc-t335.dts
@@ -14,3 +14,14 @@ 
 	model = "CompuLab CM-T335 on SB-T335";
 	compatible = "compulab,sbc-t335", "compulab,cm-t335", "ti,am33xx";
 };
+
+&i2c0 {
+	/* GPIO extender */
+	gpio_ext: pca9555@26 {
+		compatible = "nxp,pca9555";
+		pinctrl-names = "default";
+		gpio-controller;
+		#gpio-cells = <2>;
+		reg = <0x26>;
+	};
+};