diff options
| author |   Puthikorn Voravootivat <puthik@chromium.org> | 2017-06-22 12:03:39 -0700 |
|---|---|---|
| committer |   Daniel Vetter <daniel.vetter@ffwll.ch> | 2017-06-23 12:24:55 +0200 |
| commit | ae25eceab616d16a07bcaa434b84463d58a3bdc3 (patch) | |
| tree | bc2a401046a2376e4ab210e531175860ad176a9c /drivers/gpu/drm/i915/i915_params.c | |
| parent | drm/i915: Add heuristic to determine better way to adjust brightness (diff) | |
| download | wireguard-linux-ae25eceab616d16a07bcaa434b84463d58a3bdc3.tar.xz wireguard-linux-ae25eceab616d16a07bcaa434b84463d58a3bdc3.zip | |
drm/i915: Add option to support dynamic backlight via DPCD
This patch adds option to enable dynamic backlight for eDP
panel that supports this feature via DPCD register and
set minimum / maximum brightness to 0% and 100% of the
normal brightness.
Signed-off-by: Puthikorn Voravootivat <puthik@chromium.org>
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170622190339.142671-4-puthik@chromium.org
Diffstat (limited to 'drivers/gpu/drm/i915/i915_params.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_params.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c index 5b5ab15d191f..88b9d3e6713a 100644 --- a/drivers/gpu/drm/i915/i915_params.c +++ b/drivers/gpu/drm/i915/i915_params.c @@ -65,6 +65,7 @@ struct i915_params i915 __read_mostly = { .inject_load_failure = 0, .enable_dpcd_backlight = -1, .enable_gvt = false, + .enable_dbc = true, }; module_param_named(modeset, i915.modeset, int, 0400); @@ -254,3 +255,7 @@ MODULE_PARM_DESC(enable_dpcd_backlight, module_param_named(enable_gvt, i915.enable_gvt, bool, 0400); MODULE_PARM_DESC(enable_gvt, "Enable support for Intel GVT-g graphics virtualization host support(default:false)"); + +module_param_named_unsafe(enable_dbc, i915.enable_dbc, bool, 0600); +MODULE_PARM_DESC(enable_dbc, + "Enable support for dynamic backlight control (default:true)"); |