From: "Chia-Lin Kao (AceLan)" <acelan.kao@xxxxxxxxxxxxx>
dell_laptop is somethines loaded before nvidia driver, causing it to
create its own backlight interface before native backlight is set.
This results in the presence of 2 backlight interfaces in sysfs and
leads to the backlight can't be adjusted.
To work around this issue, delaying the loading of dell_laptop until
after drm module has been loaded.
Signed-off-by: Chia-Lin Kao (AceLan) <acelan.kao@xxxxxxxxxxxxx>
---
drivers/platform/x86/dell/dell-laptop.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/platform/x86/dell/dell-laptop.c b/drivers/platform/x86/dell/dell-laptop.c
index 1321687d923e..535e6c3df529 100644
--- a/drivers/platform/x86/dell/dell-laptop.c
+++ b/drivers/platform/x86/dell/dell-laptop.c
@@ -2316,6 +2316,7 @@ static void __exit dell_exit(void)
late_initcall(dell_init);
module_exit(dell_exit);
+MODULE_SOFTDEP("post: drm");
MODULE_AUTHOR("Matthew Garrett <mjg@xxxxxxxxxx>");
MODULE_AUTHOR("Gabriele Mazzotta <gabriele.mzt@xxxxxxxxx>");
MODULE_AUTHOR("Pali Rohár <pali@xxxxxxxxxx>");
--
2.34.1
