update linux patch, fix pwm7 & pwm8 overlay result ethernet not work bug

guowenxue

2022-06-12 05a23f1c568b6ab83402aca9e655cddebc862da1

 bsp/kernel/patch/linux-imx-lf-5.10.52-2.1.0.patch

@@ -1,7 +1,7 @@
diff -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/igkboard.dts linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/igkboard.dts
--- linux-imx/arch/arm/boot/dts/igkboard.dts   1970-01-01 08:00:00.000000000 +0800
+++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/igkboard.dts   2022-06-05 19:34:04.307411774 +0800
@@ -0,0 +1,704 @@
+++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/igkboard.dts   2022-06-12 16:47:51.001663267 +0800
@@ -0,0 +1,689 @@
+/*
+ * Device Tree Source for LingYun IGKBoard(IoT Gateway Kit Board)
+ * Based on imx6ul-14x14-evk.dts/imx6ul-14x14-evk.dtsi
@@ -38,14 +38,6 @@
+         size = <0xa000000>;
+         linux,cma-default;
+      };
+   };
+
+   backlight_display: backlight-display {
+      compatible = "pwm-backlight";
+      pwms = <&pwm1 0 5000000>;
+      brightness-levels = <0 4 8 16 32 64 128 255>;
+      default-brightness-level = <6>;
+      status = "okay";
+   };
+
+   buzzer: pwm-buzzer {
@@ -143,6 +135,15 @@
+      regulator-always-on;
+   };
+
+   backlight_lcd: backlight-lcd {
+      compatible = "pwm-backlight";
+      pwms = <&pwm1 0 5000000>;
+      brightness-levels = <0 4 8 16 32 64 128 255>;
+      default-brightness-level = <7>;
+      power-supply = <&reg_3p3v>;
+      status = "disabled"; /* Enable in LCD overlay */
+   };
+
+/*
+   sound-mqs {
+      compatible = "fsl,imx-audio-mqs";
@@ -158,11 +159,6 @@
+/*+-------------------+
+  |   Misc Modules     |
+  +-------------------+*/
+
+&clks {
+   assigned-clocks = <&clks IMX6UL_CLK_PLL4_AUDIO_DIV>;
+   assigned-clock-rates = <786432000>;
+};
+
+&snvs_poweroff {
+   status = "okay";
@@ -192,12 +188,6 @@
+   status = "okay";
+};
+
+&wdog1 {
+   pinctrl-names = "default";
+   pinctrl-0 = <&pinctrl_wdog>;
+   fsl,ext-reset-output;
+};
+
+/*+-------------------+
+  |   Camera Module   |
+  +-------------------+*/
@@ -219,7 +209,7 @@
+      interrupt-parent = <&gpio5>;
+      interrupts = <2 IRQ_TYPE_EDGE_FALLING>;
+
+      status = "okay";
+      status = "disabled"; /* Enable in LCD overlay */
+   };
+
+   rtc@6f {
@@ -235,19 +225,13 @@
+      pinctrl-0 = <&pinctrl_csi1>;
+      clocks = <&clks IMX6UL_CLK_CSI>;
+      clock-names = "csi_mclk";
+
+      DOVDD-supply = <&reg_3p3v>;
+      VDD-supply = <&reg_1p8v>;
+      AVDD-supply = <&reg_3p3v>;
+      DVDD-supply = <&reg_3p3v>;
+
+      pwn-gpios = <&gpio5 6 GPIO_ACTIVE_HIGH>;
+      rst-gpios = <&gpio5 5 GPIO_ACTIVE_LOW>;
+      csi_id = <0>;
+      mclk = <24000000>;
+      mclk_source = <0>;
+      /* rotation = <180>; */
+      status = "okay";
+      // rotation = <180>;
+      status = "disabled"; /* Enable in camera overlay */
+      port {
+         ov5640_ep: endpoint {
+            remote-endpoint = <&csi1_ep>;
@@ -269,6 +253,12 @@
+/*+-------------------+
+  |    Audio Module   |
+  +-------------------+*/
+
+&clks {
+   assigned-clocks = <&clks IMX6UL_CLK_PLL4_AUDIO_DIV>;
+   assigned-clock-rates = <786432000>;
+};
+
+/*
+&mqs {
+   pinctrl-names = "default";
@@ -400,16 +390,11 @@
+&iomuxc {
+   pinctrl-names = "default";
+   pinctrl-0 = <&pinctrl_extgpio>;
+   pinctrl-1 = <&pinctrl_flexcan1>;
+   pinctrl-2 = <&pinctrl_flexcan2>;
+   pinctrl-3 = <&pinctrl_i2c1>;
+   pinctrl-4 = <&pinctrl_lcdif_dat>;
+   pinctrl-5 = <&pinctrl_pwm>;
+   pinctrl-6 = <&pinctrl_ecspi1_master>;
+   pinctrl-7 = <&pinctrl_uart2>;
+   pinctrl-8 = <&pinctrl_uart3>;
+   pinctrl-9 = <&pinctrl_uart4>;
+   pinctrl-10 = <&pinctrl_uart7>;
+   pinctrl-1 = <&pinctrl_i2c1 &pinctrl_ecspi1_master>;
+   pinctrl-2 = <&pinctrl_flexcan1 &pinctrl_flexcan2>;
+   pinctrl-3 = <&pinctrl_pwm7 &pinctrl_pwm8>;
+   pinctrl-4 = <&pinctrl_uart2 &pinctrl_uart3 &pinctrl_uart4 &pinctrl_uart7>;
+   pinctrl-5 = <&pinctrl_lcdif_dat>;
+
+   pinctrl_extgpio: extgpiogrp {
+      fsl,pins = <
@@ -429,6 +414,15 @@
+      >;
+   };   
+
+   pinctrl_ecspi1_master: ecspi1grp1 {
+      fsl,pins = <
+         MX6UL_PAD_LCD_DATA22__GPIO3_IO27   0x17059 /* 19# SPI1_MOSI*/
+         MX6UL_PAD_LCD_DATA23__GPIO3_IO28   0x17059 /* 21# SPI1_MISO*/
+         MX6UL_PAD_LCD_DATA20__GPIO3_IO25   0x17059 /* 23# SPI1_SCLK*/
+         MX6UL_PAD_LCD_DATA21__GPIO3_IO26   0x17059 /* 24# SPI1_SS0 */
+      >;
+   };
+
+   pinctrl_flexcan1: flexcan1grp{
+      fsl,pins = <
+         MX6UL_PAD_UART3_CTS_B__GPIO1_IO26   0x17059 /* 27# CAN1_TX   */
@@ -443,19 +437,15 @@
+      >;
+   };
+
+   pinctrl_lcdif_dat: lcdifdatgrp {
+   pinctrl_pwm7: pwm7grp {
+      fsl,pins = <
+         MX6UL_PAD_LCD_DATA18__GPIO3_IO23   0x17059 /* 22# GPIO      */
+         MX6UL_PAD_LCD_DATA19__GPIO3_IO24   0x17059 /* 26# GPIO      */
+         MX6UL_PAD_JTAG_TCK__GPIO1_IO14      0x17059 /* 32# PWM7      */
+      >;
+   };
+
+   pinctrl_ecspi1_master: ecspi1grp1 {
+   pinctrl_pwm8: pwm8grp {
+      fsl,pins = <
+         MX6UL_PAD_LCD_DATA22__GPIO3_IO27   0x17059 /* 19# SPI1_MOSI*/
+         MX6UL_PAD_LCD_DATA23__GPIO3_IO28   0x17059 /* 21# SPI1_MISO*/
+         MX6UL_PAD_LCD_DATA20__GPIO3_IO25   0x17059 /* 23# SPI1_SCLK*/
+         MX6UL_PAD_LCD_DATA21__GPIO3_IO26   0x17059 /* 24# SPI1_SS0 */
+         MX6UL_PAD_JTAG_TRST_B__GPIO1_IO15   0x17059 /* 28# PWM8      */
+      >;
+   };
+
@@ -487,19 +477,18 @@
+      >;
+   };
+
+   pinctrl_pwm: pwmgrp {
+   pinctrl_lcdif_dat: lcdifdatgrp {
+      fsl,pins = <
+         MX6UL_PAD_JTAG_TRST_B__GPIO1_IO15   0x17059 /* 28# PWM8      */
+         MX6UL_PAD_JTAG_TCK__GPIO1_IO14      0x17059 /* 32# PWM7      */
+         MX6UL_PAD_LCD_DATA18__GPIO3_IO23   0x17059 /* 22# GPIO      */
+         MX6UL_PAD_LCD_DATA19__GPIO3_IO24   0x17059 /* 26# GPIO      */
+      >;
+   };
+};
+
+
+/*+--------------------------+
+  |       Pinctrl iomuxc       |
+  |   Basic pinctrl iomuxc   |
+  +--------------------------+*/
+
+&iomuxc {
+   pinctrl-names = "default";
+
@@ -531,6 +520,8 @@
+
+   pinctrl_csi1: csi1grp {
+      fsl,pins = <
+         MX6UL_PAD_SNVS_TAMPER5__GPIO5_IO05      0x10B0 /* CSI_RST */
+         MX6UL_PAD_SNVS_TAMPER6__GPIO5_IO06      0x10B0 /* CSI_PWDN */
+         MX6UL_PAD_CSI_MCLK__CSI_MCLK         0x1b088
+         MX6UL_PAD_CSI_PIXCLK__CSI_PIXCLK      0x1b088
+         MX6UL_PAD_CSI_VSYNC__CSI_VSYNC         0x1b088
@@ -585,7 +576,7 @@
+
+   pinctrl_pwm1: pwm1grp {
+      fsl,pins = <
+         MX6UL_PAD_GPIO1_IO08__PWM1_OUT         0x110b0
+         MX6UL_PAD_GPIO1_IO08__PWM1_OUT         0x110b0 /* LCD_BRIGHT in schematics */
+      >;
+   };
+
@@ -698,17 +689,11 @@
+         MX6UL_PAD_NAND_DATA07__USDHC2_DATA7      0x170f9
+      >;
+   };
+
+   pinctrl_wdog: wdoggrp {
+      fsl,pins = <
+         MX6UL_PAD_LCD_RESET__WDOG1_WDOG_ANY      0x30b0
+      >;
+   };
+};
+
diff -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/Makefile linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/Makefile
--- linux-imx/arch/arm/boot/dts/Makefile   2021-09-08 18:41:11.000000000 +0800
+++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/Makefile   2022-06-05 19:33:31.155895196 +0800
+++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/Makefile   2022-06-12 13:00:23.176939473 +0800
@@ -1490,3 +1490,6 @@
    aspeed-bmc-opp-zaius.dtb \
    aspeed-bmc-portwell-neptune.dtb \
@@ -716,9 +701,33 @@
+DTC_FLAGS_igkboard := -@
+dtb-$(CONFIG_SOC_IMX6UL) += igkboard.dtb
+subdir-$(CONFIG_SOC_IMX6UL) += overlays
diff -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/overlays/cam.dts linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/cam.dts
--- linux-imx/arch/arm/boot/dts/overlays/cam.dts   1970-01-01 08:00:00.000000000 +0800
+++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/cam.dts   2022-06-12 16:36:33.331873137 +0800
@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2022 LingYun IoT System Studio
+ * Author:  Guo Wenxue<guowenxue@gmail.com>
+ */
+
+/dts-v1/;
+/plugin/;
+
+/* MIPI-DSI2 camera overlay */
+
+&pxp {
+   status = "okay";
+};
+
+&i2c2 {
+   ov5640@3c {
+      status = "okay";
+   };
+};
+
diff -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/overlays/can1.dts linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/can1.dts
--- linux-imx/arch/arm/boot/dts/overlays/can1.dts   1970-01-01 08:00:00.000000000 +0800
+++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/can1.dts   2022-06-05 19:33:31.155895196 +0800
+++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/can1.dts   2022-06-12 13:00:23.176939473 +0800
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2022 LingYun IoT System Studio
@@ -740,7 +749,7 @@
+};
+
+&iomuxc {
+   pinctrl-1 = <&pinctrl_flexcan1>;
+   pinctrl-2 = <&pinctrl_flexcan1>;
+   pinctrl_flexcan1: flexcan1grp{
+      fsl,pins = <
+         MX6UL_PAD_UART3_RTS_B__FLEXCAN1_RX   0x1b020
@@ -751,7 +760,7 @@
+
diff -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/overlays/can2.dts linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/can2.dts
--- linux-imx/arch/arm/boot/dts/overlays/can2.dts   1970-01-01 08:00:00.000000000 +0800
+++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/can2.dts   2022-06-05 19:33:31.155895196 +0800
+++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/can2.dts   2022-06-12 13:00:23.176939473 +0800
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2022 LingYun IoT System Studio
@@ -784,7 +793,7 @@
+
diff -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/overlays/i2c1.dts linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/i2c1.dts
--- linux-imx/arch/arm/boot/dts/overlays/i2c1.dts   1970-01-01 08:00:00.000000000 +0800
+++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/i2c1.dts   2022-06-05 19:33:31.155895196 +0800
+++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/i2c1.dts   2022-06-12 13:00:23.176939473 +0800
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2022 LingYun IoT System Studio
@@ -806,7 +815,7 @@
+};
+
+&iomuxc {
+   pinctrl-3 = <&pinctrl_i2c1>;
+   pinctrl-1 = <&pinctrl_i2c1>;
+   pinctrl_i2c1: i2c1grp {
+      fsl,pins = <
+         MX6UL_PAD_GPIO1_IO02__I2C1_SCL   0x4001b8b0
@@ -817,7 +826,7 @@
+
diff -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/overlays/lcd.dts linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/lcd.dts
--- linux-imx/arch/arm/boot/dts/overlays/lcd.dts   1970-01-01 08:00:00.000000000 +0800
+++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/lcd.dts   2022-06-05 19:33:31.155895196 +0800
+++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/lcd.dts   2022-06-12 13:00:23.176939473 +0800
@@ -0,0 +1,99 @@
+/*
+ * Copyright (C) 2022 LingYun IoT System Studio
@@ -832,12 +841,14 @@
+
+/* LCD display overlay */
+
+&backlight_display {
+&backlight_lcd {
+   status = "okay";
+};
+
+&pxp { /* Pixel Pipeline (PXP) is a memory-to-memory graphics processing */
+   status = "okay";
+&i2c2 {
+   gt9xx@5d {
+      status = "okay";
+   };
+};
+
+&lcdif {
@@ -876,7 +887,7 @@
+};
+
+&iomuxc {
+   pinctrl-4 = <&pinctrl_lcdif_dat>;
+   pinctrl-5 = <&pinctrl_lcdif_dat &pinctrl_lcdif_ctrl>;
+   pinctrl_lcdif_dat: lcdifdatgrp {
+      fsl,pins = <
+         MX6UL_PAD_LCD_DATA00__LCDIF_DATA00   0x79
@@ -912,16 +923,14 @@
+         MX6UL_PAD_LCD_ENABLE__LCDIF_ENABLE   0x79
+         MX6UL_PAD_LCD_HSYNC__LCDIF_HSYNC   0x79
+         MX6UL_PAD_LCD_VSYNC__LCDIF_VSYNC   0x79
+         /* used for lcd reset */
+         MX6UL_PAD_SNVS_TAMPER9__GPIO5_IO09   0x79
+         MX6UL_PAD_LCD_RESET__LCDIF_RESET   0x79
+      >;
+   };
+};
+
diff -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/overlays/Makefile linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/Makefile
--- linux-imx/arch/arm/boot/dts/overlays/Makefile   1970-01-01 08:00:00.000000000 +0800
+++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/Makefile   2022-06-05 19:33:31.155895196 +0800
@@ -0,0 +1,15 @@
+++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/Makefile   2022-06-12 13:21:24.413715140 +0800
@@ -0,0 +1,18 @@
+# SPDX-License-Identifier: GPL-2.0
+
+# required for overlay support
@@ -930,16 +939,85 @@
+dtb-y += can1.dtbo
+dtb-y += can2.dtbo
+dtb-y += i2c1.dtbo
+dtb-y += lcd.dtbo
+dtb-y += spi1.dtbo
+dtb-y += uart2.dtbo
+dtb-y += uart3.dtbo
+dtb-y += uart4.dtbo
+dtb-y += uart7.dtbo
+dtb-y += pwm7.dtbo
+dtb-y += pwm8.dtbo
+dtb-y += lcd.dtbo
+dtb-y += cam.dtbo
+
diff -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/overlays/pwm7.dts linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/pwm7.dts
--- linux-imx/arch/arm/boot/dts/overlays/pwm7.dts   1970-01-01 08:00:00.000000000 +0800
+++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/pwm7.dts   2022-06-12 16:34:51.953196201 +0800
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2022 LingYun IoT System Studio
+ * Author:  Guo Wenxue<guowenxue@gmail.com>
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/clock/imx6ul-clock.h>
+#include "../imx6ul-pinfunc.h"
+
+/* 40-pin extended GPIO, PWM7 interfaces */
+
+&pwm7 {
+   pinctrl-names = "default";
+   pinctrl-0 = <&pinctrl_pwm7>;
+   clocks = <&clks IMX6UL_CLK_PWM7>, <&clks IMX6UL_CLK_PWM7>;
+   status = "okay";
+};
+
+&iomuxc {
+   pinctrl-3 = <&pinctrl_pwm7>;
+   pinctrl_pwm7: pwm7grp {
+      fsl,pins = <
+         MX6UL_PAD_JTAG_TCK__PWM7_OUT   0x110b0
+      >;
+   };
+};
+
diff -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/overlays/pwm8.dts linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/pwm8.dts
--- linux-imx/arch/arm/boot/dts/overlays/pwm8.dts   1970-01-01 08:00:00.000000000 +0800
+++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/pwm8.dts   2022-06-12 16:35:10.968948011 +0800
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2022 LingYun IoT System Studio
+ * Author:  Guo Wenxue<guowenxue@gmail.com>
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/clock/imx6ul-clock.h>
+#include "../imx6ul-pinfunc.h"
+
+/* 40-pin extended GPIO, PWM8 interfaces */
+
+&pwm8 {
+   pinctrl-names = "default";
+   pinctrl-0 = <&pinctrl_pwm8>;
+   clocks = <&clks IMX6UL_CLK_PWM8>, <&clks IMX6UL_CLK_PWM8>;
+   status = "okay";
+};
+
+&iomuxc {
+   pinctrl-3 = <&pinctrl_pwm8>;
+   pinctrl_pwm8: pwm8grp {
+      fsl,pins = <
+         MX6UL_PAD_JTAG_TRST_B__PWM8_OUT   0x110b0
+      >;
+   };
+};
+
diff -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/overlays/spi1.dts linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/spi1.dts
--- linux-imx/arch/arm/boot/dts/overlays/spi1.dts   1970-01-01 08:00:00.000000000 +0800
+++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/spi1.dts   2022-06-05 19:33:31.155895196 +0800
+++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/spi1.dts   2022-06-12 13:00:23.176939473 +0800
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2022 LingYun IoT System Studio
@@ -971,7 +1049,7 @@
+};
+
+&iomuxc {
+   pinctrl-6 = <&pinctrl_ecspi1_master>;
+   pinctrl-1 = <&pinctrl_ecspi1_master>;
+   pinctrl_ecspi1_master: ecspi1grp1 {
+      fsl,pins = <
+         MX6UL_PAD_LCD_DATA20__ECSPI1_SCLK   0x10b0
@@ -983,7 +1061,7 @@
+};
diff -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/overlays/uart2.dts linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/uart2.dts
--- linux-imx/arch/arm/boot/dts/overlays/uart2.dts   1970-01-01 08:00:00.000000000 +0800
+++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/uart2.dts   2022-06-05 19:33:31.155895196 +0800
+++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/uart2.dts   2022-06-12 13:00:23.176939473 +0800
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2022 LingYun IoT System Studio
@@ -1004,7 +1082,7 @@
+};
+
+&iomuxc {
+   pinctrl-7 = <&pinctrl_uart2>;
+   pinctrl-4 = <&pinctrl_uart2>;
+   pinctrl_uart2: uart2grp {
+      fsl,pins = <
+         MX6UL_PAD_UART2_TX_DATA__UART2_DCE_TX   0x1b0b1
@@ -1014,7 +1092,7 @@
+};
diff -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/overlays/uart3.dts linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/uart3.dts
--- linux-imx/arch/arm/boot/dts/overlays/uart3.dts   1970-01-01 08:00:00.000000000 +0800
+++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/uart3.dts   2022-06-05 19:33:31.155895196 +0800
+++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/uart3.dts   2022-06-12 13:00:23.176939473 +0800
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2022 LingYun IoT System Studio
@@ -1035,7 +1113,7 @@
+};
+
+&iomuxc {
+   pinctrl-8 = <&pinctrl_uart3>;
+   pinctrl-4 = <&pinctrl_uart3>;
+   pinctrl_uart3: uart3grp {
+      fsl,pins = <
+         MX6UL_PAD_UART3_TX_DATA__UART3_DCE_TX   0x1b0b1
@@ -1046,7 +1124,7 @@
+
diff -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/overlays/uart4.dts linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/uart4.dts
--- linux-imx/arch/arm/boot/dts/overlays/uart4.dts   1970-01-01 08:00:00.000000000 +0800
+++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/uart4.dts   2022-06-05 19:33:31.155895196 +0800
+++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/uart4.dts   2022-06-12 13:00:23.176939473 +0800
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2022 LingYun IoT System Studio
@@ -1067,7 +1145,7 @@
+};
+
+&iomuxc {
+   pinctrl-9 = <&pinctrl_uart4>;
+   pinctrl-4 = <&pinctrl_uart4>;
+   pinctrl_uart4: uart4grp {
+      fsl,pins = <
+         MX6UL_PAD_UART4_TX_DATA__UART4_DCE_TX   0x1b0b1
@@ -1078,7 +1156,7 @@
+
diff -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/overlays/uart7.dts linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/uart7.dts
--- linux-imx/arch/arm/boot/dts/overlays/uart7.dts   1970-01-01 08:00:00.000000000 +0800
+++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/uart7.dts   2022-06-05 19:33:31.155895196 +0800
+++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/uart7.dts   2022-06-12 13:00:23.176939473 +0800
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2022 LingYun IoT System Studio
@@ -1099,7 +1177,7 @@
+};
+
+&iomuxc {
+   pinctrl-10 = <&pinctrl_uart7>;
+   pinctrl-4 = <&pinctrl_uart7>;
+   pinctrl_uart7: uart7grp {
+      fsl,pins = <
+         MX6UL_PAD_LCD_DATA16__UART7_DCE_TX      0x1b0b1
@@ -1110,7 +1188,7 @@
+
diff -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/configs/igkboard_defconfig linux-imx-lf-5.10.52-2.1.0/arch/arm/configs/igkboard_defconfig
--- linux-imx/arch/arm/configs/igkboard_defconfig   1970-01-01 08:00:00.000000000 +0800
+++ linux-imx-lf-5.10.52-2.1.0/arch/arm/configs/igkboard_defconfig   2022-06-05 19:34:16.991228563 +0800
+++ linux-imx-lf-5.10.52-2.1.0/arch/arm/configs/igkboard_defconfig   2022-06-12 16:50:44.937678932 +0800
@@ -0,0 +1,722 @@
+CONFIG_KERNEL_LZO=y
+CONFIG_SYSVIPC=y
@@ -1834,9 +1912,20 @@
+# CONFIG_SCHED_DEBUG is not set
+# CONFIG_DEBUG_PREEMPT is not set
+# CONFIG_FTRACE is not set
diff -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/drivers/video/backlight/pwm_bl.c linux-imx-lf-5.10.52-2.1.0/drivers/video/backlight/pwm_bl.c
--- linux-imx/drivers/video/backlight/pwm_bl.c   2021-09-08 18:41:11.000000000 +0800
+++ linux-imx-lf-5.10.52-2.1.0/drivers/video/backlight/pwm_bl.c   2022-06-12 13:00:23.176939473 +0800
@@ -558,6 +558,7 @@
    if (!state.period && (data->pwm_period_ns > 0))
       state.period = data->pwm_period_ns;
 
+   state.enabled = true; /* Add by guowenxue to enalbe backlight as default */
    ret = pwm_apply_state(pb->pwm, &state);
    if (ret) {
       dev_err(&pdev->dev, "failed to apply initial PWM state: %d\n",
diff -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/Makefile linux-imx-lf-5.10.52-2.1.0/Makefile
--- linux-imx/Makefile   2021-09-08 18:41:11.000000000 +0800
+++ linux-imx-lf-5.10.52-2.1.0/Makefile   2022-06-05 19:33:31.159895137 +0800
+++ linux-imx-lf-5.10.52-2.1.0/Makefile   2022-06-12 13:00:23.180939431 +0800
@@ -367,7 +367,8 @@
 # Alternatively CROSS_COMPILE can be set in the environment.
 # Default value for CROSS_COMPILE is not to prefix executables
@@ -1857,7 +1946,7 @@
       -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
diff -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/scripts/Makefile.lib linux-imx-lf-5.10.52-2.1.0/scripts/Makefile.lib
--- linux-imx/scripts/Makefile.lib   2021-09-08 18:41:11.000000000 +0800
+++ linux-imx-lf-5.10.52-2.1.0/scripts/Makefile.lib   2022-06-05 19:33:31.155895196 +0800
+++ linux-imx-lf-5.10.52-2.1.0/scripts/Makefile.lib   2022-06-12 13:00:23.176939473 +0800
@@ -325,6 +325,16 @@
 $(obj)/%.dtb: $(src)/%.dts $(DTC) FORCE
    $(call if_changed_dep,dtc)