From: Stéphane Marchesin <marcheu@xxxxxxxxxxxx> The i915 driver stopped doing this in 3.8. Chrome OS machines rely on this initialization since they don't have a VBIOS. BUG=chromium:242552 TEST=by hand on a stumpy which doesn't run the vbios: the backlight is non-zero Change-Id: Ia76238a1e93e89a4f1434e88edb431225062f0e1 Reviewed-on: https://gerrit.chromium.org/gerrit/56134 Tested-by: Stéphane Marchesin <marcheu@xxxxxxxxxxxx> Reviewed-by: Sonny Rao <sonnyrao@xxxxxxxxxxxx> Commit-Queue: Stéphane Marchesin <marcheu@xxxxxxxxxxxx> --- drivers/gpu/drm/i915/intel_panel.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c index abc7064..a3d87a9 100644 --- a/drivers/gpu/drm/i915/intel_panel.c +++ b/drivers/gpu/drm/i915/intel_panel.c @@ -508,11 +508,7 @@ int intel_panel_setup_backlight(struct drm_connector *connector) memset(&props, 0, sizeof(props)); props.type = BACKLIGHT_RAW; - props.max_brightness = _intel_panel_get_max_backlight(dev); - if (props.max_brightness == 0) { - DRM_DEBUG_DRIVER("Failed to get maximum backlight value\n"); - return -ENODEV; - } + props.max_brightness = intel_panel_get_max_backlight(dev); dev_priv->backlight = backlight_device_register("intel_backlight", &connector->kdev, dev, -- 1.8.3.2 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
