From fa2b54ccd9a5cc851668b4af7134abdf764f15db Mon Sep 17 00:00:00 2001
From: yang.li3 <yang.li3@unisoc.com>
Date: Fri, 26 Jun 2026 11:58:17 +0800
Subject: [PATCH] Bug #11111113 - mipi转HDMI调试

[root cause  ]:mipi转HDMI调试
[changes     ]:mipi转HDMI调试
[side effects]:na
[self test   ]:pass
[download normally]:pass
[power on/off normally]:pass
[do common repository/branch inspection]:na
[is there dependence]:na
[confirm dependent commit]:na
[board]:na
[test case]:na
[reviewers]:na

commit_template_version:v1

Change-Id: I7fc0e6ece8628c6e0c79d3c91b9a7acf78589a1c
Signed-off-by: yang.li3 <yang.li3@unisoc.com>
---

diff --git a/recipes-kernel/linux/linux-unisoc-5.4.bb b/recipes-kernel/linux/linux-unisoc-5.4.bb
index 3f85602..633d231 100755
--- a/recipes-kernel/linux/linux-unisoc-5.4.bb
+++ b/recipes-kernel/linux/linux-unisoc-5.4.bb
@@ -24,6 +24,7 @@
            file://kernel-config/8021q_vlan.cfg \
            ${KERNEL_MACHINE_PATCH} \
            ${@bb.utils.contains('USERDEBUG', 'userdebug', 'file://userdebug.cfg', 'file://user.cfg', d)} \
+           file://enable-8912.cfg \		   
 	  "
 
 PV = "5.4"
diff --git a/recipes-kernel/linux/linux-unisoc-5.4/uis7885/enable-8912.cfg b/recipes-kernel/linux/linux-unisoc-5.4/uis7885/enable-8912.cfg
new file mode 100644
index 0000000..968a628
--- /dev/null
+++ b/recipes-kernel/linux/linux-unisoc-5.4/uis7885/enable-8912.cfg
@@ -0,0 +1 @@
+CONFIG_LT8912B=y
diff --git a/recipes-kernel/linux/linux-unisoc-5.4/uis7885/uis7885-2h10-overlay.dts b/recipes-kernel/linux/linux-unisoc-5.4/uis7885/uis7885-2h10-overlay.dts
index 94a1359..91e1a63 100755
--- a/recipes-kernel/linux/linux-unisoc-5.4/uis7885/uis7885-2h10-overlay.dts
+++ b/recipes-kernel/linux/linux-unisoc-5.4/uis7885/uis7885-2h10-overlay.dts
@@ -731,6 +731,29 @@
 	};
 };
 
+&i2c2 {
+	status = "okay";
+	clock-frequency = <400000>;
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	lt8912b: lt8912b@48 {
+		compatible = "lontium,lt8912b";
+		reg = <0x48>;
+		/*power-gpios = <&ap_gpio 22 GPIO_ACTIVE_HIGH>;*/
+		reset-gpios = <&ap_gpio 11 GPIO_ACTIVE_HIGH>;
+		interrupt-gpios = <&ap_gpio 132 GPIO_ACTIVE_HIGH>;
+
+		lt8912b_addr_1: lt8912b_addr_1@49 {
+			addr_1_reg = /bits/ 8  <0x49>;
+		};
+
+		lt8912b_addr_2: lt8912b_addr_2@4a {
+			addr_2_reg = /bits/ 8  <0x4a>;
+		};
+	};
+};
+
 &i2c4 {
 	status = "okay";
 	clock-frequency = <400000>;