From 95ff6821a02653b7ab8555f7283628cca82881c0 Mon Sep 17 00:00:00 2001
From: guowenxue <guowenxue@gmail.com>
Date: Thu, 30 Mar 2023 14:19:41 +0800
Subject: [PATCH] update linux kernel build shell script to remove unsed drivers

---
 bsp/kernel/patch/linux-imx-lf-5.10.52-2.1.0.patch |  476 ++++++++++++++++++++++++++++++++---------------------------
 1 files changed, 256 insertions(+), 220 deletions(-)

diff --git a/bsp/kernel/patch/linux-imx-lf-5.10.52-2.1.0.patch b/bsp/kernel/patch/linux-imx-lf-5.10.52-2.1.0.patch
index 42f166e..8037445 100644
--- a/bsp/kernel/patch/linux-imx-lf-5.10.52-2.1.0.patch
+++ b/bsp/kernel/patch/linux-imx-lf-5.10.52-2.1.0.patch
@@ -1,18 +1,18 @@
 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	2022-06-12 16:47:51.001663267 +0800
-@@ -0,0 +1,689 @@
++++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/igkboard.dts	2022-10-09 13:19:22.622732242 +0800
+@@ -0,0 +1,608 @@
 +/*
 + * Device Tree Source for LingYun IGKBoard(IoT Gateway Kit Board)
 + * Based on imx6ul-14x14-evk.dts/imx6ul-14x14-evk.dtsi
 + *
 + * Copyright (C) 2022 LingYun IoT System Studio.
-+ * Author:  Guo Wenxue<guowenxue@gmail.com>
++ * Author: Guo Wenxue<guowenxue@gmail.com>
 + */
 +
 +/dts-v1/;
 +
-+#include "imx6ul.dtsi"
++#include "imx6ull.dtsi"
 +
 +/ {
 +	model = "LingYun IoT System Studio IoT Gateway Board";
@@ -144,21 +144,37 @@
 +		status = "disabled"; /* Enable in LCD overlay */
 +	};
 +
-+/*
++	/* 1-Wire sentinel for overlay */
++	w1: w1 {
++		compatible = "w1-gpio";
++		status = "disabled";
++	};
++
++	mqs: mqs {
++		#sound-dai-cells = <0>;
++		compatible = "fsl,imx6sx-mqs";
++		pinctrl-names = "default";
++		pinctrl-0 = <&pinctrl_mqs>;
++		clocks = <&clks IMX6UL_CLK_SAI1>;
++		clock-names = "mclk";
++		gpr = <&gpr>;
++		status = "okay";
++	};
++
 +	sound-mqs {
 +		compatible = "fsl,imx-audio-mqs";
 +		model = "mqs-audio";
-+		cpu-dai = <&sai1>;
-+		asrc-controller = <&asrc>;
++		audio-cpu = <&sai1>;
++		audio-asrc = <&asrc>;
 +		audio-codec = <&mqs>;
 +		status = "okay";
 +	};
-+*/
 +};
 +
-+/*+-------------------+
-+  |   Misc Modules	  |
-+  +-------------------+*/
++
++/*+--------------+
++  | Misc Modules |
++  +--------------+*/
 +
 +&snvs_poweroff {
 +	status = "okay";
@@ -188,9 +204,10 @@
 +	status = "okay";
 +};
 +
-+/*+-------------------+
-+  |   Camera Module   |
-+  +-------------------+*/
++
++/*+---------------+
++  | Camera Module |
++  +---------------+*/
 +
 +&i2c2 {
 +	clock-frequency = <100000>;
@@ -225,13 +242,19 @@
 +		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 = "disabled"; /* Enable in camera overlay */
++		/* rotation = <180>; */
++		status = "disabled"; /* Enable in CAM overlay */
 +		port {
 +			ov5640_ep: endpoint {
 +				remote-endpoint = <&csi1_ep>;
@@ -240,8 +263,8 @@
 +	};
 +};
 +
-+&csi { /* camera ov5640 */
-+	status = "okay";
++&csi {
++	status = "disabled"; /* Enable in CAM overlay */
 +	port {
 +		csi1_ep: endpoint {
 +			remote-endpoint = <&ov5640_ep>;
@@ -250,39 +273,39 @@
 +};
 +
 +
-+/*+-------------------+
-+  |    Audio Module   |
-+  +-------------------+*/
++/*+--------------+
++  | Audio Module |
++  +--------------+*/
++
++/* Refrence: https://www.toradex.com/zh-cn/blog/colibri-imx6ull-kuo-zhan-yin-pin-jie-ma-qi-max98357a
++ * +--------------------+--------------------+-----------------------+---------------------+
++ * | Audio Sample Rates |      Bit Clock     |  PLL4_AUDIO_DIV(512)  |    CLK_SAI1(/16)    |
++ * +--------------------+--------------------+-----------------------+---------------------+
++ * | 16bit,2Ch,48KHz    | 16x2x48000=1536000 | 1536000x512=786432000 | 1536000x16=24576000 |
++ * +--------------------+--------------------+-----------------------+---------------------+
++ * | 16bit,2Ch,44.1KHz  | 16x2x44100=1411200 | 1411200x512=722534400 | 1411200x16=22579200 |
++ * +--------------------+--------------------+-----------------------+---------------------+
++ */
 +
 +&clks {
 +	assigned-clocks = <&clks IMX6UL_CLK_PLL4_AUDIO_DIV>;
-+	assigned-clock-rates = <786432000>;
++	//assigned-clock-rates = <786432000>; // 16bit,2Ch,48KHz
++	assigned-clock-rates = <722534400>; // 16bit,2Ch,44.1KHz
 +};
-+
-+/*
-+&mqs {
-+	pinctrl-names = "default";
-+	pinctrl-0 = <&pinctrl_mqs>;
-+	clocks = <&clks IMX6UL_CLK_SAI1>;
-+	clock-names = "mclk";
-+	status = "okay";
-+};
-+*/
 +
 +&sai1 {
-+	assigned-clocks = <&clks IMX6UL_CLK_SAI1_SEL>,
-+			  <&clks IMX6UL_CLK_SAI1>;
++	assigned-clocks = <&clks IMX6UL_CLK_SAI1_SEL>, <&clks IMX6UL_CLK_SAI1>;
 +	assigned-clock-parents = <&clks IMX6UL_CLK_PLL4_AUDIO_DIV>;
-+	assigned-clock-rates = <0>, <24576000>;
++	//assigned-clock-rates = <0>, <24576000>; // 16bit,2Ch,48KHz
++	assigned-clock-rates = <0>, <22579200>; // 16bit,2Ch,44.1KHz
 +	fsl,sai-mclk-direction-output;
 +	status = "okay";
 +};
 +
 +
-+
-+/*+-------------------+
-+  | Ethernet Modules  |
-+  +-------------------+*/
++/*+------------------+
++  | Ethernet Modules |
++  +------------------+*/
 +
 +&fec1 { /* eth0 */
 +	pinctrl-names = "default";
@@ -328,10 +351,9 @@
 +};
 +
 +
-+
-+/*+-------------------+
-+  |  USB interface	 |
-+  +-------------------+*/
++/*+---------------+
++  | USB interface |
++  +---------------+*/
 +
 +&usbotg1 {
 +	dr_mode = "otg";
@@ -355,9 +377,9 @@
 +};
 +
 +
-+/*+-------------------+
-+  | USDCHC interface  |
-+  +-------------------+*/
++/*+------------------+
++  | USDCHC interface |
++  +------------------+*/
 +
 +&usdhc1 { /* tf card slot */
 +	pinctrl-names = "default", "state_100mhz", "state_200mhz";
@@ -383,112 +405,9 @@
 +};
 +
 +
-+/*+------------------------------+
-+  |   40 Pin Header GPIO iomuxc  |
-+  +------------------------------+*/
-+
-+&iomuxc {
-+	pinctrl-names = "default";
-+	pinctrl-0 = <&pinctrl_extgpio>;
-+	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 = <
-+			MX6UL_PAD_UART1_CTS_B__GPIO1_IO18	0x17059 /*	7#	GPIO	*/
-+			MX6UL_PAD_SNVS_TAMPER1__GPIO5_IO01	0x17059 /* 35#	GPIO	*/
-+			MX6UL_PAD_SNVS_TAMPER8__GPIO5_IO08	0x17059 /* 37#	GPIO	*/
-+			MX6UL_PAD_JTAG_TMS__GPIO1_IO11		0x17059 /* 36# GPIO */
-+			MX6UL_PAD_JTAG_MOD__GPIO1_IO10		0x17059 /* 38# GPIO */
-+			MX6UL_PAD_SNVS_TAMPER9__GPIO5_IO09	0x17059 /* 40# GPIO */
-+		>;
-+	};
-+
-+	pinctrl_i2c1: i2c1grp {
-+		fsl,pins = <
-+			MX6UL_PAD_GPIO1_IO03__GPIO1_IO03	0x17059 /*	3# I2C1_SDA */
-+			MX6UL_PAD_GPIO1_IO02__I2C1_SCL		0x17059 /*	5# I2C1_SCL */
-+		>;
-+	};	
-+
-+	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	*/
-+			MX6UL_PAD_UART3_RTS_B__GPIO1_IO27	0x17059 /* 29# CAN1_RX	*/
-+		>;
-+	};
-+
-+	pinctrl_flexcan2: flexcan2grp{
-+		fsl,pins = <
-+			MX6UL_PAD_UART2_CTS_B__GPIO1_IO22	0x17059 /* 31# CAN2_TX	*/
-+			MX6UL_PAD_UART2_RTS_B__GPIO1_IO23	0x17059 /* 33# CAN2_RX	*/
-+		>;
-+	};
-+
-+	pinctrl_pwm7: pwm7grp {
-+		fsl,pins = <
-+			MX6UL_PAD_JTAG_TCK__GPIO1_IO14		0x17059 /* 32# PWM7		*/
-+		>;
-+	};
-+
-+	pinctrl_pwm8: pwm8grp {
-+		fsl,pins = <
-+			MX6UL_PAD_JTAG_TRST_B__GPIO1_IO15	0x17059 /* 28# PWM8		*/
-+		>;
-+	};
-+
-+	pinctrl_uart2: uart2grp {
-+		fsl,pins = <
-+			MX6UL_PAD_UART2_TX_DATA__GPIO1_IO20 0x17059 /* 8# UART2_TX */
-+			MX6UL_PAD_UART2_RX_DATA__GPIO1_IO21 0x17059 /* 10# UART2_RX */
-+		>;
-+	};
-+
-+	pinctrl_uart3: uart3grp {
-+		fsl,pins = <
-+			MX6UL_PAD_UART3_TX_DATA__GPIO1_IO24 0x17059 /* 11# UART3_TX */
-+			MX6UL_PAD_UART3_RX_DATA__GPIO1_IO25 0x17059 /* 12# UART3_RX */
-+		>;
-+	};
-+
-+	pinctrl_uart4: uart4grp {
-+		fsl,pins = <
-+			MX6UL_PAD_UART4_TX_DATA__GPIO1_IO28 0x17059 /* 13# UART4_TX */
-+			MX6UL_PAD_UART4_RX_DATA__GPIO1_IO29 0x17059 /* 15# UART4_RX */
-+		>;
-+	};
-+
-+	pinctrl_uart7: uart7grp {
-+		fsl,pins = <
-+			MX6UL_PAD_LCD_DATA16__GPIO3_IO21	0x17059 /* 16# UART7_TX */
-+			MX6UL_PAD_LCD_DATA17__GPIO3_IO22	0x17059 /* 18# UART7_RX */
-+		>;
-+	};
-+
-+	pinctrl_lcdif_dat: lcdifdatgrp {
-+		fsl,pins = <
-+			MX6UL_PAD_LCD_DATA18__GPIO3_IO23	0x17059 /* 22# GPIO		*/
-+			MX6UL_PAD_LCD_DATA19__GPIO3_IO24	0x17059 /* 26# GPIO		*/
-+		>;
-+	};
-+};
-+
-+
-+/*+--------------------------+
-+  |   Basic pinctrl iomuxc   |
-+  +--------------------------+*/
++/*+----------------------+
++  | Basic pinctrl iomuxc |
++  +----------------------+*/
 +&iomuxc {
 +	pinctrl-names = "default";
 +
@@ -520,8 +439,8 @@
 +
 +	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_SNVS_TAMPER5__GPIO5_IO05		0x17059 /* CSI_RST */
++			MX6UL_PAD_SNVS_TAMPER6__GPIO5_IO06		0x17059 /* CSI_PWDN */
 +			MX6UL_PAD_CSI_MCLK__CSI_MCLK			0x1b088
 +			MX6UL_PAD_CSI_PIXCLK__CSI_PIXCLK		0x1b088
 +			MX6UL_PAD_CSI_VSYNC__CSI_VSYNC			0x1b088
@@ -693,7 +612,7 @@
 +
 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	2022-06-12 13:00:23.176939473 +0800
++++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/Makefile	2022-10-09 13:19:22.622732242 +0800
 @@ -1490,3 +1490,6 @@
  	aspeed-bmc-opp-zaius.dtb \
  	aspeed-bmc-portwell-neptune.dtb \
@@ -703,8 +622,8 @@
 +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 @@
++++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/cam.dts	2022-10-09 13:19:22.626732206 +0800
+@@ -0,0 +1,24 @@
 +/*
 + * Copyright (C) 2022 LingYun IoT System Studio
 + * Author:  Guo Wenxue<guowenxue@gmail.com>
@@ -715,7 +634,11 @@
 +
 +/* MIPI-DSI2 camera overlay */
 +
-+&pxp {
++&pxp { /* Pixel Pipeline (PXP) is a memory-to-memory graphics processing */
++	status = "okay";
++};
++
++&csi {
 +	status = "okay";
 +};
 +
@@ -727,8 +650,8 @@
 +
 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	2022-06-12 13:00:23.176939473 +0800
-@@ -0,0 +1,29 @@
++++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/can1.dts	2022-10-09 13:19:22.626732206 +0800
+@@ -0,0 +1,28 @@
 +/*
 + * Copyright (C) 2022 LingYun IoT System Studio
 + * Author:  Guo Wenxue<guowenxue@gmail.com>
@@ -749,7 +672,6 @@
 +};
 +
 +&iomuxc {
-+	pinctrl-2 = <&pinctrl_flexcan1>;
 +	pinctrl_flexcan1: flexcan1grp{
 +		fsl,pins = <
 +			MX6UL_PAD_UART3_RTS_B__FLEXCAN1_RX	0x1b020
@@ -760,8 +682,8 @@
 +
 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	2022-06-12 13:00:23.176939473 +0800
-@@ -0,0 +1,29 @@
++++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/can2.dts	2022-10-09 13:19:22.626732206 +0800
+@@ -0,0 +1,28 @@
 +/*
 + * Copyright (C) 2022 LingYun IoT System Studio
 + * Author:  Guo Wenxue<guowenxue@gmail.com>
@@ -782,7 +704,6 @@
 +};
 +
 +&iomuxc {
-+	pinctrl-2 = <&pinctrl_flexcan2>;
 +	pinctrl_flexcan2: flexcan2grp{
 +		fsl,pins = <
 +			MX6UL_PAD_UART2_RTS_B__FLEXCAN2_RX	0x1b020
@@ -793,8 +714,8 @@
 +
 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	2022-06-12 13:00:23.176939473 +0800
-@@ -0,0 +1,29 @@
++++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/i2c1.dts	2022-10-09 13:19:22.626732206 +0800
+@@ -0,0 +1,28 @@
 +/*
 + * Copyright (C) 2022 LingYun IoT System Studio
 + * Author:  Guo Wenxue<guowenxue@gmail.com>
@@ -815,7 +736,6 @@
 +};
 +
 +&iomuxc {
-+	pinctrl-1 = <&pinctrl_i2c1>;
 +	pinctrl_i2c1: i2c1grp {
 +		fsl,pins = <
 +			MX6UL_PAD_GPIO1_IO02__I2C1_SCL	0x4001b8b0
@@ -826,8 +746,8 @@
 +
 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	2022-06-12 13:00:23.176939473 +0800
-@@ -0,0 +1,99 @@
++++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/lcd.dts	2022-10-09 13:19:22.626732206 +0800
+@@ -0,0 +1,89 @@
 +/*
 + * Copyright (C) 2022 LingYun IoT System Studio
 + * Author:  Guo Wenxue<guowenxue@gmail.com>
@@ -855,8 +775,7 @@
 +	assigned-clocks = <&clks IMX6UL_CLK_LCDIF_PRE_SEL>;
 +	assigned-clock-parents = <&clks IMX6UL_CLK_PLL5_VIDEO_DIV>;
 +	pinctrl-names = "default";
-+	pinctrl-0 = <&pinctrl_lcdif_dat
-+			 &pinctrl_lcdif_ctrl>;
++	pinctrl-0 = <&pinctrl_lcdif_dat &pinctrl_lcdif_ctrl>;
 +	display = <&display0>;
 +	status = "okay";
 +
@@ -887,7 +806,6 @@
 +};
 +
 +&iomuxc {
-+	pinctrl-5 = <&pinctrl_lcdif_dat &pinctrl_lcdif_ctrl>;
 +	pinctrl_lcdif_dat: lcdifdatgrp {
 +		fsl,pins = <
 +			MX6UL_PAD_LCD_DATA00__LCDIF_DATA00	0x79
@@ -906,14 +824,6 @@
 +			MX6UL_PAD_LCD_DATA13__LCDIF_DATA13	0x79
 +			MX6UL_PAD_LCD_DATA14__LCDIF_DATA14	0x79
 +			MX6UL_PAD_LCD_DATA15__LCDIF_DATA15	0x79
-+			MX6UL_PAD_LCD_DATA16__LCDIF_DATA16	0x79
-+			MX6UL_PAD_LCD_DATA17__LCDIF_DATA17	0x79
-+			MX6UL_PAD_LCD_DATA18__LCDIF_DATA18	0x79
-+			MX6UL_PAD_LCD_DATA19__LCDIF_DATA19	0x79
-+			MX6UL_PAD_LCD_DATA20__LCDIF_DATA20	0x79
-+			MX6UL_PAD_LCD_DATA21__LCDIF_DATA21	0x79
-+			MX6UL_PAD_LCD_DATA22__LCDIF_DATA22	0x79
-+			MX6UL_PAD_LCD_DATA23__LCDIF_DATA23	0x79
 +		>;
 +	};
 +
@@ -929,8 +839,8 @@
 +};
 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	2022-06-12 13:21:24.413715140 +0800
-@@ -0,0 +1,18 @@
++++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/Makefile	2022-10-09 13:19:22.626732206 +0800
+@@ -0,0 +1,20 @@
 +# SPDX-License-Identifier: GPL-2.0
 +
 +# required for overlay support
@@ -946,13 +856,53 @@
 +dtb-y += uart7.dtbo
 +dtb-y += pwm7.dtbo
 +dtb-y += pwm8.dtbo
++dtb-y += w1.dtbo
 +dtb-y += lcd.dtbo
 +dtb-y += cam.dtbo
++dtb-y += nbiot-4g.dtbo
++
+diff -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/overlays/nbiot-4g.dts linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/nbiot-4g.dts
+--- linux-imx/arch/arm/boot/dts/overlays/nbiot-4g.dts	1970-01-01 08:00:00.000000000 +0800
++++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/nbiot-4g.dts	2022-10-09 13:19:22.626732206 +0800
+@@ -0,0 +1,34 @@
++/*
++ * Copyright (C) 2022 LingYun IoT System Studio
++ * Author:  Guo Wenxue<guowenxue@gmail.com>
++ */
++
++/dts-v1/;
++/plugin/;
++
++#include "../imx6ul-pinfunc.h"
++
++/* NB-IoT/4G module use UART8 interfaces, conflict with SPI interface */
++
++&uart8 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&pinctrl_spi_uart8 &pinctrl_nbiot_ctrl>;
++	status = "okay";
++};
++
++&iomuxc {
++	pinctrl_spi_uart8: spi_uart8_grp {
++		fsl,pins = <
++			MX6UL_PAD_LCD_DATA20__UART8_DCE_TX		0x1b0b1 /* MRXD */
++			MX6UL_PAD_LCD_DATA21__UART8_DCE_RX		0x1b0b1 /* MTXD */
++		>;
++	};
++
++	pinctrl_nbiot_ctrl: nbiot_ctrl_grp {
++		fsl,pins = <
++			MX6UL_PAD_LCD_DATA22__GPIO3_IO27		0x17059 /* NB_PWREN/4G_RESET */
++			MX6UL_PAD_JTAG_TRST_B__GPIO1_IO15		0x17059 /* NB_MRST/4G_POWER_KEY */
++		>;
++	};
++};
 +
 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 @@
++++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/pwm7.dts	2022-10-09 13:19:22.626732206 +0800
+@@ -0,0 +1,28 @@
 +/*
 + * Copyright (C) 2022 LingYun IoT System Studio
 + * Author:  Guo Wenxue<guowenxue@gmail.com>
@@ -974,7 +924,6 @@
 +};
 +
 +&iomuxc {
-+	pinctrl-3 = <&pinctrl_pwm7>;
 +	pinctrl_pwm7: pwm7grp {
 +		fsl,pins = <
 +			MX6UL_PAD_JTAG_TCK__PWM7_OUT	0x110b0
@@ -984,8 +933,8 @@
 +
 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 @@
++++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/pwm8.dts	2022-10-09 13:19:22.626732206 +0800
+@@ -0,0 +1,28 @@
 +/*
 + * Copyright (C) 2022 LingYun IoT System Studio
 + * Author:  Guo Wenxue<guowenxue@gmail.com>
@@ -997,18 +946,17 @@
 +#include <dt-bindings/clock/imx6ul-clock.h>
 +#include "../imx6ul-pinfunc.h"
 +
-+/* 40-pin extended GPIO, PWM8 interfaces */
++/* 40-pin extended GPIO, PWM8 interfaces, conflict with NB-IoT */
 +
 +&pwm8 {
 +	pinctrl-names = "default";
-+	pinctrl-0 = <&pinctrl_pwm8>;
++	pinctrl-0 = <&pinctrl_pwm8_nbiot>;
 +	clocks = <&clks IMX6UL_CLK_PWM8>, <&clks IMX6UL_CLK_PWM8>;
 +	status = "okay";
 +};
 +
 +&iomuxc {
-+	pinctrl-3 = <&pinctrl_pwm8>;
-+	pinctrl_pwm8: pwm8grp {
++	pinctrl_pwm8_nbiot: pwm8nbiotgrp {
 +		fsl,pins = <
 +			MX6UL_PAD_JTAG_TRST_B__PWM8_OUT	0x110b0
 +		>;
@@ -1017,8 +965,8 @@
 +
 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	2022-06-12 13:00:23.176939473 +0800
-@@ -0,0 +1,40 @@
++++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/spi1.dts	2022-10-09 13:19:22.626732206 +0800
+@@ -0,0 +1,39 @@
 +/*
 + * Copyright (C) 2022 LingYun IoT System Studio
 + * Author:  Guo Wenxue<guowenxue@gmail.com>
@@ -1030,11 +978,11 @@
 +#include <dt-bindings/gpio/gpio.h>
 +#include "../imx6ul-pinfunc.h"
 +
-+/* 40-pin extended GPIO, SPI1 interfaces, conflict with LCD display */
++/* 40-pin extended GPIO, SPI1 interfaces, conflict with UART8 */
 +
 +&ecspi1 {
 +	pinctrl-names = "default";
-+	pinctrl-0 = <&pinctrl_ecspi1_master>;
++	pinctrl-0 = <&pinctrl_spi_uart8>;
 +	cs-gpios = <&gpio3 26 GPIO_ACTIVE_LOW>;
 +	status = "okay";
 +
@@ -1049,8 +997,7 @@
 +};
 +
 +&iomuxc {
-+	pinctrl-1 = <&pinctrl_ecspi1_master>;
-+	pinctrl_ecspi1_master: ecspi1grp1 {
++	pinctrl_spi_uart8: spi_uart8_grp {
 +		fsl,pins = <
 +			MX6UL_PAD_LCD_DATA20__ECSPI1_SCLK	0x10b0
 +			MX6UL_PAD_LCD_DATA22__ECSPI1_MOSI	0x10b0
@@ -1061,8 +1008,8 @@
 +};
 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	2022-06-12 13:00:23.176939473 +0800
-@@ -0,0 +1,27 @@
++++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/uart2.dts	2022-10-09 13:19:22.626732206 +0800
+@@ -0,0 +1,26 @@
 +/*
 + * Copyright (C) 2022 LingYun IoT System Studio
 + * Author:  Guo Wenxue<guowenxue@gmail.com>
@@ -1082,7 +1029,6 @@
 +};
 +
 +&iomuxc {
-+	pinctrl-4 = <&pinctrl_uart2>;
 +	pinctrl_uart2: uart2grp {
 +		fsl,pins = <
 +			MX6UL_PAD_UART2_TX_DATA__UART2_DCE_TX	0x1b0b1
@@ -1092,8 +1038,8 @@
 +};
 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	2022-06-12 13:00:23.176939473 +0800
-@@ -0,0 +1,28 @@
++++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/uart3.dts	2022-10-09 13:19:22.626732206 +0800
+@@ -0,0 +1,27 @@
 +/*
 + * Copyright (C) 2022 LingYun IoT System Studio
 + * Author:  Guo Wenxue<guowenxue@gmail.com>
@@ -1113,7 +1059,6 @@
 +};
 +
 +&iomuxc {
-+	pinctrl-4 = <&pinctrl_uart3>;
 +	pinctrl_uart3: uart3grp {
 +		fsl,pins = <
 +			MX6UL_PAD_UART3_TX_DATA__UART3_DCE_TX	0x1b0b1
@@ -1124,8 +1069,8 @@
 +
 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	2022-06-12 13:00:23.176939473 +0800
-@@ -0,0 +1,28 @@
++++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/uart4.dts	2022-10-09 13:19:22.626732206 +0800
+@@ -0,0 +1,27 @@
 +/*
 + * Copyright (C) 2022 LingYun IoT System Studio
 + * Author:  Guo Wenxue<guowenxue@gmail.com>
@@ -1145,7 +1090,6 @@
 +};
 +
 +&iomuxc {
-+	pinctrl-4 = <&pinctrl_uart4>;
 +	pinctrl_uart4: uart4grp {
 +		fsl,pins = <
 +			MX6UL_PAD_UART4_TX_DATA__UART4_DCE_TX	0x1b0b1
@@ -1156,8 +1100,8 @@
 +
 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	2022-06-12 13:00:23.176939473 +0800
-@@ -0,0 +1,28 @@
++++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/uart7.dts	2022-10-09 13:19:22.626732206 +0800
+@@ -0,0 +1,27 @@
 +/*
 + * Copyright (C) 2022 LingYun IoT System Studio
 + * Author:  Guo Wenxue<guowenxue@gmail.com>
@@ -1177,7 +1121,6 @@
 +};
 +
 +&iomuxc {
-+	pinctrl-4 = <&pinctrl_uart7>;
 +	pinctrl_uart7: uart7grp {
 +		fsl,pins = <
 +			MX6UL_PAD_LCD_DATA16__UART7_DCE_TX		0x1b0b1
@@ -1186,10 +1129,45 @@
 +	};
 +};
 +
+diff -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/arch/arm/boot/dts/overlays/w1.dts linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/w1.dts
+--- linux-imx/arch/arm/boot/dts/overlays/w1.dts	1970-01-01 08:00:00.000000000 +0800
++++ linux-imx-lf-5.10.52-2.1.0/arch/arm/boot/dts/overlays/w1.dts	2022-10-09 13:19:22.626732206 +0800
+@@ -0,0 +1,31 @@
++/*
++ * Copyright (C) 2022 LingYun IoT System Studio
++ * Author:  Guo Wenxue<guowenxue@gmail.com>
++ */
++
++/dts-v1/;
++/plugin/;
++
++#include <dt-bindings/gpio/gpio.h>
++#include "../imx6ul-pinfunc.h"
++
++/* W1(DS18B20) on 40Pin Header Pin#7 (GPIO1_IO18) */
++
++&w1 {
++    compatible = "w1-gpio";
++    status = "okay";
++
++    pinctrl-names = "default";
++    pinctrl-0 = <&pinctrl_w1>;
++    gpio = <&gpio1 18 GPIO_ACTIVE_HIGH>;
++};
++
++
++&iomuxc {
++	pinctrl_w1: w1grp {
++		fsl,pins = <
++			MX6UL_PAD_UART1_CTS_B__GPIO1_IO18	0x110b0
++		>;
++	};
++};
++
 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	2022-06-12 16:50:44.937678932 +0800
-@@ -0,0 +1,722 @@
++++ linux-imx-lf-5.10.52-2.1.0/arch/arm/configs/igkboard_defconfig	2022-10-09 13:20:51.349955648 +0800
+@@ -0,0 +1,726 @@
 +CONFIG_KERNEL_LZO=y
 +CONFIG_SYSVIPC=y
 +CONFIG_POSIX_MQUEUE=y
@@ -1438,6 +1416,9 @@
 +CONFIG_GPIO_PCF857X=y
 +CONFIG_GPIO_STMPE=y
 +CONFIG_GPIO_74X164=y
++CONFIG_W1=y
++CONFIG_W1_MASTER_GPIO=y
++CONFIG_W1_SLAVE_THERM=y
 +CONFIG_POWER_RESET=y
 +CONFIG_POWER_RESET_SYSCON=y
 +CONFIG_POWER_RESET_SYSCON_POWEROFF=y
@@ -1694,10 +1675,11 @@
 +# CONFIG_SND_USB is not set
 +CONFIG_SND_SOC=y
 +CONFIG_SND_SOC_FSL_ASRC=y
-+CONFIG_SND_SOC_FSL_SAI=y
 +CONFIG_SND_SOC_FSL_MQS=y
 +CONFIG_SND_SOC_FSL_RPMSG=y
 +CONFIG_SND_IMX_SOC=y
++CONFIG_SND_SOC_FSL_ASOC_CARD=y
++CONFIG_SND_SOC_AC97_CODEC=y
 +CONFIG_SND_SIMPLE_CARD=y
 +CONFIG_HID_MULTITOUCH=y
 +CONFIG_USB=y
@@ -1912,31 +1894,73 @@
 +# 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/bluetooth/btrtl.c linux-imx-lf-5.10.52-2.1.0/drivers/bluetooth/btrtl.c
+--- linux-imx/drivers/bluetooth/btrtl.c	2021-09-08 18:41:11.000000000 +0800
++++ linux-imx-lf-5.10.52-2.1.0/drivers/bluetooth/btrtl.c	2022-10-09 13:19:22.626732206 +0800
+@@ -136,12 +136,12 @@
+ 	  .fw_name  = "rtl_bt/rtl8761a_fw.bin",
+ 	  .cfg_name = "rtl_bt/rtl8761a_config" },
+
+-	/* 8761B */
++	/* 8761BU */
+ 	{ IC_INFO(RTL_ROM_LMP_8761A, 0xb),
+ 	  .config_needed = false,
+ 	  .has_rom_version = true,
+-	  .fw_name  = "rtl_bt/rtl8761b_fw.bin",
+-	  .cfg_name = "rtl_bt/rtl8761b_config" },
++	  .fw_name  = "rtl_bt/rtl8761bu_fw.bin",
++	  .cfg_name = "rtl_bt/rtl8761bu_config" },
+
+ 	/* 8822C with UART interface */
+ 	{ .match_flags = IC_MATCH_FL_LMPSUBV | IC_MATCH_FL_HCIREV |
+diff -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/drivers/bluetooth/btusb.c linux-imx-lf-5.10.52-2.1.0/drivers/bluetooth/btusb.c
+--- linux-imx/drivers/bluetooth/btusb.c	2021-09-08 18:41:11.000000000 +0800
++++ linux-imx-lf-5.10.52-2.1.0/drivers/bluetooth/btusb.c	2022-10-09 13:19:22.626732206 +0800
+@@ -419,6 +419,9 @@
+ 	{ USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK },
+ 	{ USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK },
+
++	/*  Additional Realtek 8761B Bluetooth devices */
++	{ USB_DEVICE(0x2357, 0x0604), .driver_info = BTUSB_REALTEK },
++
+ 	/* Additional Realtek 8821AE Bluetooth devices */
+ 	{ USB_DEVICE(0x0b05, 0x17dc), .driver_info = BTUSB_REALTEK },
+ 	{ USB_DEVICE(0x13d3, 0x3414), .driver_info = BTUSB_REALTEK },
 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
++++ linux-imx-lf-5.10.52-2.1.0/drivers/video/backlight/pwm_bl.c	2022-10-09 13:19:22.626732206 +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	2022-06-12 13:00:23.180939431 +0800
++++ linux-imx-lf-5.10.52-2.1.0/Makefile	2022-10-09 13:20:41.118045212 +0800
 @@ -367,7 +367,8 @@
  # Alternatively CROSS_COMPILE can be set in the environment.
  # Default value for CROSS_COMPILE is not to prefix executables
  # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile
 -ARCH		?= $(SUBARCH)
 +ARCH		?= arm
-+CROSS_COMPILE?=/opt/buildroot/cortexA7/bin/arm-linux-
- 
++CROSS_COMPILE ?= arm-linux-gnueabihf-
+
  # Architecture as present in compile.h
  UTS_MACHINE 	:= $(ARCH)
-@@ -1833,6 +1834,7 @@
+@@ -1353,6 +1354,9 @@
+ %.dtb: include/config/kernel.release scripts_dtc
+ 	$(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@
+
++%.dtbo: include/config/kernel.release scripts_dtc
++	$(Q)$(MAKE) $(build)=$(dtstree) $(dtstree)/$@
++
+ PHONY += dtbs dtbs_install dtbs_check
+ dtbs: include/config/kernel.release scripts_dtc
+ 	$(Q)$(MAKE) $(build)=$(dtstree)
+@@ -1833,6 +1837,7 @@
  		\( -name '*.[aios]' -o -name '*.ko' -o -name '.*.cmd' \
  		-o -name '*.ko.*' \
  		-o -name '*.dtb' -o -name '*.dtb.S' -o -name '*.dt.yaml' \
@@ -1946,11 +1970,11 @@
  		-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	2022-06-12 13:00:23.176939473 +0800
++++ linux-imx-lf-5.10.52-2.1.0/scripts/Makefile.lib	2022-10-09 13:19:22.630732171 +0800
 @@ -325,6 +325,16 @@
  $(obj)/%.dtb: $(src)/%.dts $(DTC) FORCE
  	$(call if_changed_dep,dtc)
- 
+
 +quiet_cmd_dtco = DTCO     $@
 +cmd_dtco = $(HOSTCC) -E $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \
 +	$(DTC) -O dtb -o $@ -b 0 \
@@ -1964,3 +1988,15 @@
  DT_CHECKER ?= dt-validate
  DT_BINDING_DIR := Documentation/devicetree/bindings
  # DT_TMP_SCHEMA may be overridden from Documentation/devicetree/bindings/Makefile
+diff -Nuar --no-dereference -x logo_linux_clut224.ppm linux-imx/sound/soc/fsl/fsl_sai.c linux-imx-lf-5.10.52-2.1.0/sound/soc/fsl/fsl_sai.c
+--- linux-imx/sound/soc/fsl/fsl_sai.c	2021-09-08 18:41:11.000000000 +0800
++++ linux-imx-lf-5.10.52-2.1.0/sound/soc/fsl/fsl_sai.c	2022-10-09 13:19:22.630732171 +0800
+@@ -1349,7 +1349,7 @@
+ 		sai->bus_clk = NULL;
+ 	}
+
+-	for (i = 0; i < FSL_SAI_MCLK_MAX; i++) {
++	for (i = 1; i < FSL_SAI_MCLK_MAX; i++) {
+ 		sprintf(tmp, "mclk%d", i);
+ 		sai->mclk_clk[i] = devm_clk_get(&pdev->dev, tmp);
+ 		if (IS_ERR(sai->mclk_clk[i])) {

--
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