From 4b10177d92a66e653035da8c4c4022f6543d36cf Mon Sep 17 00:00:00 2001
From: w4ilun <w4ilun@users.noreply.github.com>
Date: Thu, 20 Apr 2023 09:54:41 -0400
Subject: [PATCH] for beeper

---
 sharp.c       |  6 ++---
 sharp.dts.txt | 61 +++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 64 insertions(+), 3 deletions(-)
 create mode 100644 sharp.dts.txt

diff --git a/sharp.c b/sharp.c
index 255ae94..8442310 100644
--- a/sharp.c
+++ b/sharp.c
@@ -27,9 +27,9 @@ char vcomByte    = 0b01000000;
 char clearByte   = 0b00100000;
 char paddingByte = 0b00000000;
 
-char DISP       = 24;
-char SCS        = 23;
-char VCOM       = 25;
+char DISP       = 22;
+char SCS        = 8;
+char VCOM       = 23;
 
 int lcdWidth = LCDWIDTH;
 int lcdHeight = 240;
diff --git a/sharp.dts.txt b/sharp.dts.txt
new file mode 100644
index 0000000..fd0142e
--- /dev/null
+++ b/sharp.dts.txt
@@ -0,0 +1,61 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
+
+	fragment@0 {
+		target = <&spi0>;
+		__overlay__ {
+			status = "okay";
+
+			spidev@0{
+				status = "disabled";
+			};
+
+			spidev@1{
+				status = "disabled";
+			};
+		};
+	};
+
+	fragment@1 {
+                target = <&spi0_pins>;
+                __overlay__ {
+                        brcm,pins = <0x0a 0x0b>; /* skipping bcm9 MISO */
+                };
+        };
+
+	fragment@2 {
+		target = <&gpio>;
+		__overlay__ {
+			sharp_pins: sharp_pins {
+				brcm,pins = <23 22>;
+				/* brcm,pins = <9 23>; */ /* <- older revision */
+				brcm,function = <1 1>; /* out */
+			};
+		};
+	};
+
+	fragment@3 {
+		target = <&spi0>;
+		__overlay__ {
+			/* needed to avoid dtc warning */
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			sharp: sharp@0{
+				compatible = "sharp";
+				reg = <0>;
+				pinctrl-names = "default";
+				pinctrl-0 = <&sharp_pins>;
+				spi-cs-high = <1>;
+				spi-max-frequency = <2000000>;
+				buswidth = <8>;
+				debug = <0>;
+
+			};
+
+		};
+	};
+};