[OpenWrt-Devel] [PATCH] ramips: enable additional GPIOs on HAME MPR-A1

Paul Fertser fercerpav at gmail.com
Fri Aug 8 12:17:05 EDT 2014


According to the pcb tracing results[1] by anton.rad[2] MPR-A1s expose
6 unused GPIOs, only one of them working as configured in the current
DTS. This patch enables GPIO22-26.

Tested on hardware.

[1] http://i.imgur.com/kHVW2Ox.jpg
[2] https://forum.openwrt.org/viewtopic.php?pid=222698#p222698

Signed-off-by: Paul Fertser <fercerpav at gmail.com>
---
 target/linux/ramips/dts/MPRA1.dts | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/target/linux/ramips/dts/MPRA1.dts b/target/linux/ramips/dts/MPRA1.dts
index 9b4ee34..60a23fe 100644
--- a/target/linux/ramips/dts/MPRA1.dts
+++ b/target/linux/ramips/dts/MPRA1.dts
@@ -41,12 +41,15 @@
 				};
 			};
 		};
+		gpio1: gpio at 660 {
+			status = "okay";
+		};
 	};
 
 	pinctrl {
 		state_default: pinctrl0 {
 			gpio {
-				ralink,group = "i2c", "jtag", "rgmii", "mdio", "uartf";
+				ralink,group = "i2c", "jtag", "rgmii", "mdio", "uartf", "led";
 				ralink,function = "gpio";
 			};
 		};
-- 
1.8.3.2
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