This is a note to let you know that I've just added the patch titled ARM: imx_v6_v7_defconfig: Restore CONFIG_BACKLIGHT_CLASS_DEVICE to the 6.6-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: arm-imx_v6_v7_defconfig-restore-config_backlight_class_device.patch and it can be found in the queue-6.6 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 2b0a5a8a397c0ae8f8cd25e7d3857c749239ceb8 Mon Sep 17 00:00:00 2001 From: Fabio Estevam <festevam@xxxxxxx> Date: Thu, 1 Feb 2024 15:00:54 -0300 Subject: ARM: imx_v6_v7_defconfig: Restore CONFIG_BACKLIGHT_CLASS_DEVICE From: Fabio Estevam <festevam@xxxxxxx> commit 2b0a5a8a397c0ae8f8cd25e7d3857c749239ceb8 upstream. Since commit bfac19e239a7 ("fbdev: mx3fb: Remove the driver") backlight is no longer functional. The fbdev mx3fb driver used to automatically select CONFIG_BACKLIGHT_CLASS_DEVICE. Now that the mx3fb driver has been removed, enable the CONFIG_BACKLIGHT_CLASS_DEVICE option so that backlight can still work by default. Tested on a imx6dl-sabresd board. Cc: stable@xxxxxxxxxxxxxxx Fixes: bfac19e239a7 ("fbdev: mx3fb: Remove the driver") Signed-off-by: Fabio Estevam <festevam@xxxxxxx> Reviewed-by: Francesco Dolcini <francesco.dolcini@xxxxxxxxxxx> Tested-by: Francesco Dolcini <francesco.dolcini@xxxxxxxxxxx> # Toradex Colibri iMX7 Signed-off-by: Shawn Guo <shawnguo@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- arch/arm/configs/imx_v6_v7_defconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig index 0a90583f9f01..8f9dbe8d9029 100644 --- a/arch/arm/configs/imx_v6_v7_defconfig +++ b/arch/arm/configs/imx_v6_v7_defconfig @@ -297,6 +297,7 @@ CONFIG_FB_MODE_HELPERS=y CONFIG_LCD_CLASS_DEVICE=y CONFIG_LCD_L4F00242T03=y CONFIG_LCD_PLATFORM=y +CONFIG_BACKLIGHT_CLASS_DEVICE=y CONFIG_BACKLIGHT_PWM=y CONFIG_BACKLIGHT_GPIO=y CONFIG_FRAMEBUFFER_CONSOLE=y -- 2.44.0 Patches currently in stable-queue which might be from festevam@xxxxxxx are queue-6.6/arm-imx_v6_v7_defconfig-restore-config_backlight_class_device.patch