[PATCH] ARM: dts: am437x-gp-evm: Add support for buzzer

[Faiz Abbas]

Add support for onboard gpio buzzer. It works using
the gpio-beeper driver. Pinmux entries for GPIO
controlling the buzzer are also added.

Signed-off-by: Faiz Abbas <faiz_ab...@ti.com>
---
 arch/arm/boot/dts/am437x-gp-evm.dts | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm/boot/dts/am437x-gp-evm.dts 
b/arch/arm/boot/dts/am437x-gp-evm.dts
index 397e98b..24cdf6d 100644
--- a/arch/arm/boot/dts/am437x-gp-evm.dts
+++ b/arch/arm/boot/dts/am437x-gp-evm.dts
@@ -149,6 +149,13 @@
                        system-clock-frequency = <12000000>;
                };
        };
+
+       beeper: beeper {
+               compatible = "gpio-beeper";
+               pinctrl-names = "default";
+               pinctrl-0 = <&beeper_pins>;
+               gpios = <&gpio4 12 GPIO_ACTIVE_HIGH>;
+       };
 };
 
 &am43xx_pinmux {
@@ -510,6 +517,13 @@
                        AM4372_IOPAD(0x974, PIN_OUTPUT_PULLDOWN | MUX_MODE0)    
/* uart0_txd.uart0_txd */
                >;
        };
+
+       beeper_pins: beeper_pins {
+               pinctrl-single,pins = <
+                       AM4372_IOPAD(0x9e0, PIN_OUTPUT_PULLUP | MUX_MODE7)      
/* cam1_field.gpio4_12 */
+               >;
+       };
+
 };
 
 &uart0 {
-- 
2.7.4