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 <[email protected]> 
Cc: Carlos Corbacho <[email protected]>
Cc: Matthew Garrett <[email protected]>
Cc: Dmitry Torokhov <[email protected]>
Cc: Corentin Chary <[email protected]>
Cc: Thomas Renninger <[email protected]>
Signed-off-by: Lee, Chun-Yi <[email protected]>
---
 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

--
To unsubscribe from this list: send the line "unsubscribe platform-driver-x86" 
in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to