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| author | Hans de Goede <hdegoede@redhat.com> | 2015-06-16 17:28:08 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-06-19 02:12:25 +0300 |
| commit | 6c072299b6253d0737db87c7c18328cb376d96bb (patch) | |
| tree | 43e0bd3a8321df50f4a2403d16d223f000c5cfbd /drivers/platform | |
| parent | 33a4edfba6bcc0482bf9013352c371816c6437c2 (diff) | |
| download | linux-6c072299b6253d0737db87c7c18328cb376d96bb.tar.xz | |
samsung-laptop: 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>
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/samsung-laptop.c | 27 |
1 files changed, 4 insertions, 23 deletions
diff --git a/drivers/platform/x86/samsung-laptop.c b/drivers/platform/x86/samsung-laptop.c index 0df03e2c1e91..8c146e2b6727 100644 --- a/drivers/platform/x86/samsung-laptop.c +++ b/drivers/platform/x86/samsung-laptop.c @@ -1720,27 +1720,14 @@ static int __init samsung_init(void) samsung->handle_backlight = true; samsung->quirks = quirks; - #ifdef CONFIG_ACPI if (samsung->quirks->broken_acpi_video) - acpi_video_dmi_promote_vendor(); - - /* Don't handle backlight here if the acpi video already handle it */ - if (acpi_video_backlight_support()) { - samsung->handle_backlight = false; - } else if (samsung->quirks->broken_acpi_video) { - pr_info("Disabling ACPI video driver\n"); - acpi_video_unregister_backlight(); - } + acpi_video_set_dmi_backlight_type(acpi_backlight_vendor); + if (samsung->quirks->use_native_backlight) + acpi_video_set_dmi_backlight_type(acpi_backlight_native); - if (samsung->quirks->use_native_backlight) { - pr_info("Using native backlight driver\n"); - /* Tell acpi-video to not handle the backlight */ - acpi_video_dmi_promote_vendor(); - acpi_video_unregister_backlight(); - /* And also do not handle it ourselves */ + if (acpi_video_get_backlight_type() != acpi_backlight_vendor) samsung->handle_backlight = false; - } #endif ret = samsung_platform_init(samsung); @@ -1751,12 +1738,6 @@ static int __init samsung_init(void) if (ret) goto error_sabi; -#ifdef CONFIG_ACPI - /* Only log that if we are really on a sabi platform */ - if (acpi_video_backlight_support()) - pr_info("Backlight controlled by ACPI video driver\n"); -#endif - ret = samsung_sysfs_init(samsung); if (ret) goto error_sysfs; |