From 7d0050c7c7490a1c5790c7fae04ccb68b12846e6 Mon Sep 17 00:00:00 2001
From: guowenxue <guowenxue@gmail.com>
Date: Sun, 12 Jun 2022 13:08:58 +0800
Subject: [PATCH] update linux kernel patch to enable backlight as default
---
bsp/kernel/patch/linux-imx-lf-5.10.52-2.1.0.patch | 15 +++++++++++++--
1 files changed, 13 insertions(+), 2 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 1a81a5a..662dc48 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
@@ -1115,7 +1115,7 @@
+
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 2022-06-12 00:42:07.385407198 +0800
++++ linux-imx-lf-5.10.52-2.1.0/arch/arm/configs/igkboard_defconfig 2022-06-12 12:58:49.937918843 +0800
@@ -0,0 +1,722 @@
+CONFIG_KERNEL_LZO=y
+CONFIG_SYSVIPC=y
@@ -1839,9 +1839,20 @@
+# 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 12:58:36.010063853 +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 2022-06-11 23:31:44.844599695 +0800
++++ linux-imx-lf-5.10.52-2.1.0/Makefile 2022-06-12 12:58:43.693983895 +0800
@@ -367,7 +367,8 @@
# Alternatively CROSS_COMPILE can be set in the environment.
# Default value for CROSS_COMPILE is not to prefix executables
--
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