update linux-imx-lf-5.10.52-2.1.0.patch to support yocto

guowenxue

2022-10-09 b2b582833aaa8cc9d9d6e152d014f7129e0c5c43

 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   2022-06-30 20:52:22.149803784 +0800
@@ -0,0 +1,592 @@
+++ 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
@@ -144,16 +144,31 @@
+      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";
+   };
+*/
+};
+
+
@@ -262,26 +277,27 @@
+  | 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";
+};
@@ -596,7 +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   2022-06-30 20:50:51.165773492 +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 \
@@ -606,7 +622,7 @@
+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   2022-06-30 20:52:45.457812387 +0800
+++ 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
@@ -634,7 +650,7 @@
+
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   2022-06-30 20:52:45.461812388 +0800
+++ 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
@@ -666,7 +682,7 @@
+
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   2022-06-30 20:52:45.473812390 +0800
+++ 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
@@ -698,7 +714,7 @@
+
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   2022-06-30 20:52:45.477812390 +0800
+++ 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
@@ -730,7 +746,7 @@
+
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   2022-06-30 20:52:45.493812393 +0800
+++ 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
@@ -823,8 +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   2022-06-30 21:58:16.635775990 +0800
@@ -0,0 +1,19 @@
+++ 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
@@ -840,13 +856,14 @@
+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   2022-06-30 21:58:12.435821592 +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
@@ -884,7 +901,7 @@
+
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   2022-06-30 20:52:45.505812395 +0800
+++ 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
@@ -916,7 +933,7 @@
+
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   2022-06-30 20:52:45.505812395 +0800
+++ 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
@@ -948,7 +965,7 @@
+
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   2022-06-30 21:14:43.885696210 +0800
+++ 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
@@ -991,7 +1008,7 @@
+};
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   2022-06-30 20:52:45.513812395 +0800
+++ 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
@@ -1021,7 +1038,7 @@
+};
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   2022-06-30 20:52:45.525812397 +0800
+++ 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
@@ -1052,7 +1069,7 @@
+
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   2022-06-30 20:52:45.525812397 +0800
+++ 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
@@ -1083,7 +1100,7 @@
+
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   2022-06-30 20:52:45.537812399 +0800
+++ 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
@@ -1112,10 +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   2022-06-30 22:25:58.551377437 +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
@@ -1364,6 +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
@@ -1620,10 +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
@@ -1838,31 +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   2022-06-30 20:50:51.165773492 +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   2022-06-30 20:53:02.309812083 +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' \
@@ -1872,11 +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   2022-06-30 20:50:51.181773299 +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 \
@@ -1890,3 +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])) {