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

Faiz Abbas
2017-06-20T05:10:35Z

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_abbas@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