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| author | Matthew Garrett <mjg@redhat.com> | 2011-03-22 16:30:21 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-22 17:43:59 -0700 |
| commit | bb7ca747f8d6243b3943c5b133048652020f4a50 (patch) | |
| tree | b40e879a7b26e3763aea2af2d4dd9079483de11e /drivers/platform/x86/thinkpad_acpi.c | |
| parent | ccd7510fd8dea5b4b2af87fb2aef2ebd6b23b76b (diff) | |
| download | blackbird-op-linux-bb7ca747f8d6243b3943c5b133048652020f4a50.tar.gz blackbird-op-linux-bb7ca747f8d6243b3943c5b133048652020f4a50.zip | |
backlight: add backlight type
There may be multiple ways of controlling the backlight on a given
machine. Allow drivers to expose the type of interface they are
providing, making it possible for userspace to make appropriate policy
decisions.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: David Airlie <airlied@linux.ie>
Cc: Alex Deucher <alexdeucher@gmail.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Len Brown <lenb@kernel.org>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/platform/x86/thinkpad_acpi.c')
| -rw-r--r-- | drivers/platform/x86/thinkpad_acpi.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index eb9922385ef8..947bdcaa0ce9 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -6307,6 +6307,7 @@ static int __init brightness_init(struct ibm_init_struct *iibm) return 1; memset(&props, 0, sizeof(struct backlight_properties)); + props.type = BACKLIGHT_PLATFORM; props.max_brightness = bright_maxlvl; props.brightness = b & TP_EC_BACKLIGHT_LVLMSK; ibm_backlight_device = backlight_device_register(TPACPI_BACKLIGHT_DEV_NAME, |
