diff options
Diffstat (limited to 'target/linux/ath79/dts/ar9132_buffalo_wzr-hp-g300nh.dtsi')
| -rw-r--r-- | target/linux/ath79/dts/ar9132_buffalo_wzr-hp-g300nh.dtsi | 41 |
1 files changed, 31 insertions, 10 deletions
diff --git a/target/linux/ath79/dts/ar9132_buffalo_wzr-hp-g300nh.dtsi b/target/linux/ath79/dts/ar9132_buffalo_wzr-hp-g300nh.dtsi index ca1eeab449..7b0c09f68e 100644 --- a/target/linux/ath79/dts/ar9132_buffalo_wzr-hp-g300nh.dtsi +++ b/target/linux/ath79/dts/ar9132_buffalo_wzr-hp-g300nh.dtsi @@ -17,16 +17,37 @@ clock-frequency = <40000000>; }; - gpio2: gpio-extender { - compatible = "nxp,74hc153-gpio"; + /* There is a GPIO driven NXP 74HC153 dual 4-way multiplexer on board + * used for buttons that are on top of the the device. + */ + mux: mux-controller { + compatible = "gpio-mux"; + #mux-control-cells = <0>; + + mux-gpios = <&gpio 9 GPIO_ACTIVE_HIGH>, /* s0 */ + <&gpio 11 GPIO_ACTIVE_HIGH>; /* s1 */ + }; + + gpio2: key-mux1 { + compatible = "gpio-cascade"; + mux-controls = <&mux>; + + gpio-controller; + #gpio-cells = <2>; + + // GPIOs used by this node, the mux pin + upstream-gpios = <&gpio 12 GPIO_ACTIVE_HIGH>; /* 1y */ + }; + + gpio3: key-mux2 { + compatible = "gpio-cascade"; + mux-controls = <&mux>; + gpio-controller; #gpio-cells = <2>; - // GPIOs used by this node - gpio-s0 = <&gpio 9 GPIO_ACTIVE_HIGH>; - gpio-s1 = <&gpio 11 GPIO_ACTIVE_HIGH>; - gpio-1y = <&gpio 12 GPIO_ACTIVE_HIGH>; - gpio-2y = <&gpio 14 GPIO_ACTIVE_HIGH>; + // GPIOs used by this node, the mux pin + upstream-gpios = <&gpio 14 GPIO_ACTIVE_HIGH>; /* 2y */ }; keys { @@ -64,21 +85,21 @@ usb { label = "usb"; linux,code = <BTN_2>; - gpios = <&gpio2 5 GPIO_ACTIVE_LOW>; + gpios = <&gpio3 1 GPIO_ACTIVE_LOW>; debounce-interval = <60>; }; router_auto { label = "router_auto"; linux,code = <BTN_6>; - gpios = <&gpio2 6 GPIO_ACTIVE_HIGH>; + gpios = <&gpio3 2 GPIO_ACTIVE_HIGH>; debounce-interval = <60>; }; movie_on { label = "movie_on"; linux,code = <BTN_4>; - gpios = <&gpio2 7 GPIO_ACTIVE_HIGH>; + gpios = <&gpio3 3 GPIO_ACTIVE_HIGH>; debounce-interval = <60>; }; }; |