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| author |   Hans de Goede <hdegoede@redhat.com> | 2022-06-05 17:26:54 +0200 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2022-09-03 12:17:27 +0200 |
| commit | 2603c681e0f63581b2c7821728d5be2cdee8cb9f (patch) | |
| tree | 49f400a4579ad055ad02e5279d6b0657d20c617f /drivers/platform | |
| parent | platform/x86: acer-wmi: Move backlight DMI quirks to acpi/video_detect.c (diff) | |
| download | wireguard-linux-2603c681e0f63581b2c7821728d5be2cdee8cb9f.tar.xz wireguard-linux-2603c681e0f63581b2c7821728d5be2cdee8cb9f.zip | |
platform/x86: asus-wmi: Drop DMI chassis-type check from backlight handling
Remove this check from the asus-wmi backlight handling:
/* Some Asus desktop boards export an acpi-video backlight interface,
stop this from showing up */
chassis_type = dmi_get_system_info(DMI_CHASSIS_TYPE);
if (chassis_type && !strcmp(chassis_type, "3"))
acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
This acpi_video_set_dmi_backlight_type(acpi_backlight_vendor) call must be
removed because other changes in this series change the native backlight
drivers to no longer unconditionally register their backlight. Instead
these drivers now do this check:
if (acpi_video_get_backlight_type(false) != acpi_backlight_native)
return 0; /* bail */
So leaving this in place can break things on laptops with a broken
DMI chassis-type, which would have GPU native brightness control before
the addition of the acpi_video_get_backlight_type() != native check.
Removing this should be ok now, since the ACPI video code has improved
heuristics for this itself now (which includes a chassis-type check).
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'drivers/platform')
| -rw-r--r-- | drivers/platform/x86/asus-wmi.c | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c index 89b604e04d7f..301166a5697d 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -3553,7 +3553,6 @@ static int asus_wmi_add(struct platform_device *pdev) struct platform_driver *pdrv = to_platform_driver(pdev->dev.driver); struct asus_wmi_driver *wdrv = to_asus_wmi_driver(pdrv); struct asus_wmi *asus; - const char *chassis_type; acpi_status status; int err; u32 result; @@ -3635,12 +3634,6 @@ static int asus_wmi_add(struct platform_device *pdev) if (asus->driver->quirks->wmi_force_als_set) asus_wmi_set_als(); - /* Some Asus desktop boards export an acpi-video backlight interface, - stop this from showing up */ - chassis_type = dmi_get_system_info(DMI_CHASSIS_TYPE); - if (chassis_type && !strcmp(chassis_type, "3")) - acpi_video_set_dmi_backlight_type(acpi_backlight_vendor); - if (asus->driver->quirks->wmi_backlight_power) acpi_video_set_dmi_backlight_type(acpi_backlight_vendor); |