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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>
This commit is contained in:
Hans de Goede 2015-06-16 16:27:55 +02:00 committed by Rafael J. Wysocki
parent 2a8b18e9fb
commit 9a65f0df63
1 changed files with 3 additions and 7 deletions
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10
drivers/platform/x86/acer-wmi.c
View File

@ -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) {