summaryrefslogtreecommitdiff
path: root/drivers/platform
diff options
context:
space:
mode:
authorHans de Goede <hdegoede@redhat.com>2015-06-16 16:27:55 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2015-06-19 01:11:18 +0200
commit9a65f0df6392a02c08637e01860f3263f60736d3 (patch)
treeec20e1aba62b7103b578e878fd92672bee41d0b1 /drivers/platform
parent2a8b18e9fb650ab5c637005a7506045c46ed2b0e (diff)
downloadlwn-9a65f0df6392a02c08637e01860f3263f60736d3.tar.gz
lwn-9a65f0df6392a02c08637e01860f3263f60736d3.zip
acer-wmi: Port to new backlight interface selection API
Port the backlight selection logic to the new backlight interface selection API. This commit also removes various obsolete pr_xxx messages related to backlight interface selection. These are obsolete because they assume there is only a vendor or acpi backlight driver and no other choice. Also they are not necessary, if the user wants to know which backlight interfaces are registered a simple "ls /sys/class/backlight" suffices. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Lee, Chun-Yi <jlee@suse.com> Acked-by: Darren Hart <dvhart@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/platform')
-rw-r--r--drivers/platform/x86/acer-wmi.c10
1 files changed, 3 insertions, 7 deletions
diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index 3ac29a1e8f92..f6b280dbfb33 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -2246,14 +2246,10 @@ static int __init acer_wmi_init(void)
set_quirks();
if (dmi_check_system(video_vendor_dmi_table))
- acpi_video_dmi_promote_vendor();
- if (acpi_video_backlight_support()) {
+ acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
+
+ if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
interface->capability &= ~ACER_CAP_BRIGHTNESS;
- pr_info("Brightness must be controlled by acpi video driver\n");
- } else {
- pr_info("Disabling ACPI video driver\n");
- acpi_video_unregister_backlight();
- }
if (wmi_has_guid(WMID_GUID3)) {
if (ec_raw_mode) {