The driver set module parameter value: mailled, threeg and brightness
to BIOS by evaluate wmi method when driver was initialled. The default
values for those parameters are -1, so, that will be better don't set
negative value to BIOS.
Reference: bko#32862
https://bugzilla.kernel.org/show_bug.cgi?id=32862
Tested on Acer Aspire 8930G, Acer Travelmate 8572
Tested-by: Hector Martin <hector@xxxxxxxxxxxxxx>
Cc: Carlos Corbacho <carlos@xxxxxxxxxxxxxxxxxxx>
Cc: Matthew Garrett <mjg@xxxxxxxxxx>
Cc: Dmitry Torokhov <dtor@xxxxxxx>
Cc: Corentin Chary <corentincj@xxxxxxxxxx>
Cc: Thomas Renninger <trenn@xxxxxxx>
Signed-off-by: Lee, Chun-Yi <jlee@xxxxxxxxxx>
---
drivers/platform/x86/acer-wmi.c | 8 +++++---
1 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index ac4e7f8..c3cb603 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -961,10 +961,12 @@ static void __init acer_commandline_init(void)
* These will all fail silently if the value given is invalid, or the
* capability isn't available on the given interface
*/
- set_u32(mailled, ACER_CAP_MAILLED);
- if (!has_type_aa)
+ if (mailled >= 0)
+ set_u32(mailled, ACER_CAP_MAILLED);
+ if (!has_type_aa && threeg >= 0)
set_u32(threeg, ACER_CAP_THREEG);
- set_u32(brightness, ACER_CAP_BRIGHTNESS);
+ if (brightness >= 0)
+ set_u32(brightness, ACER_CAP_BRIGHTNESS);
}
/*
--
1.6.0.2
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