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Lvds now power up backlight on commit 

Now saves previous power level in prepare and sets
that power level in commit, should power level
be 0 it will set maximum level.
main
Jakob Bornecrantz 2007-04-17 22:27:46 +02:00
parent 1c7f895fa6
commit a45fa264f2
2 changed files with 28 additions and 2 deletions
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2
linux-core/intel_display.c
View File

@ -539,11 +539,13 @@ static void intel_crtc_commit (struct drm_crtc *crtc)
void intel_output_prepare (struct drm_output *output)
{
/* lvds has its own version of prepare see intel_lvds_prepare */
output->funcs->dpms(output, DPMSModeOff);
}
void intel_output_commit (struct drm_output *output)
{
/* lvds has its own version of commit see intel_lvds_commit */
output->funcs->dpms(output, DPMSModeOn);
}

28
linux-core/intel_lvds.c
View File

@ -209,6 +209,30 @@ static bool intel_lvds_mode_fixup(struct drm_output *output,
return true;
}
static void intel_lvds_prepare(struct drm_output *output)
{
struct drm_device *dev = output->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
dev_priv->saveBLC_PWM_CTL = I915_READ(BLC_PWM_CTL);
dev_priv->backlight_duty_cycle = (dev_priv->saveBLC_PWM_CTL &
BACKLIGHT_DUTY_CYCLE_MASK);
intel_lvds_set_power(dev, false);
}
static void intel_lvds_commit( struct drm_output *output)
{
struct drm_device *dev = output->dev;
drm_i915_private_t *dev_priv = dev->dev_private;
if (dev_priv->backlight_duty_cycle == 0)
dev_priv->backlight_duty_cycle =
intel_lvds_get_max_backlight(dev);
intel_lvds_set_power(dev, true);
}
static void intel_lvds_mode_set(struct drm_output *output,
struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
@ -321,9 +345,9 @@ static const struct drm_output_funcs intel_lvds_output_funcs = {
.restore = intel_lvds_restore,
.mode_valid = intel_lvds_mode_valid,
.mode_fixup = intel_lvds_mode_fixup,
.prepare = intel_output_prepare,
.prepare = intel_lvds_prepare,
.mode_set = intel_lvds_mode_set,
.commit = intel_output_commit,
.commit = intel_lvds_commit,
.detect = intel_lvds_detect,
.get_modes = intel_lvds_get_modes,
.cleanup = intel_lvds_destroy