diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_panel.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_panel.c | 31 |
1 files changed, 17 insertions, 14 deletions
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c index 4ec6c2feef42..69bbfbaa4680 100644 --- a/drivers/gpu/drm/i915/intel_panel.c +++ b/drivers/gpu/drm/i915/intel_panel.c @@ -1117,7 +1117,7 @@ static u32 get_backlight_min_vbt(struct intel_connector *connector) 0, panel->backlight.max); } -static int bdw_setup_backlight(struct intel_connector *connector) +static int bdw_setup_backlight(struct intel_connector *connector, enum pipe unused) { struct drm_device *dev = connector->base.dev; struct drm_i915_private *dev_priv = dev->dev_private; @@ -1143,7 +1143,7 @@ static int bdw_setup_backlight(struct intel_connector *connector) return 0; } -static int pch_setup_backlight(struct intel_connector *connector) +static int pch_setup_backlight(struct intel_connector *connector, enum pipe unused) { struct drm_device *dev = connector->base.dev; struct drm_i915_private *dev_priv = dev->dev_private; @@ -1170,7 +1170,7 @@ static int pch_setup_backlight(struct intel_connector *connector) return 0; } -static int i9xx_setup_backlight(struct intel_connector *connector) +static int i9xx_setup_backlight(struct intel_connector *connector, enum pipe unused) { struct drm_device *dev = connector->base.dev; struct drm_i915_private *dev_priv = dev->dev_private; @@ -1202,7 +1202,7 @@ static int i9xx_setup_backlight(struct intel_connector *connector) return 0; } -static int i965_setup_backlight(struct intel_connector *connector) +static int i965_setup_backlight(struct intel_connector *connector, enum pipe unused) { struct drm_device *dev = connector->base.dev; struct drm_i915_private *dev_priv = dev->dev_private; @@ -1232,37 +1232,40 @@ static int i965_setup_backlight(struct intel_connector *connector) return 0; } -static int vlv_setup_backlight(struct intel_connector *connector) +static int vlv_setup_backlight(struct intel_connector *connector, enum pipe pipe) { struct drm_device *dev = connector->base.dev; struct drm_i915_private *dev_priv = dev->dev_private; struct intel_panel *panel = &connector->panel; - enum pipe pipe; + enum pipe p; u32 ctl, ctl2, val; - for_each_pipe(dev_priv, pipe) { - u32 cur_val = I915_READ(VLV_BLC_PWM_CTL(pipe)); + for_each_pipe(dev_priv, p) { + u32 cur_val = I915_READ(VLV_BLC_PWM_CTL(p)); /* Skip if the modulation freq is already set */ if (cur_val & ~BACKLIGHT_DUTY_CYCLE_MASK) continue; cur_val &= BACKLIGHT_DUTY_CYCLE_MASK; - I915_WRITE(VLV_BLC_PWM_CTL(pipe), (0xf42 << 16) | + I915_WRITE(VLV_BLC_PWM_CTL(p), (0xf42 << 16) | cur_val); } - ctl2 = I915_READ(VLV_BLC_PWM_CTL2(PIPE_A)); + if (WARN_ON(pipe != PIPE_A && pipe != PIPE_B)) + return -ENODEV; + + ctl2 = I915_READ(VLV_BLC_PWM_CTL2(pipe)); panel->backlight.active_low_pwm = ctl2 & BLM_POLARITY_I965; - ctl = I915_READ(VLV_BLC_PWM_CTL(PIPE_A)); + ctl = I915_READ(VLV_BLC_PWM_CTL(pipe)); panel->backlight.max = ctl >> 16; if (!panel->backlight.max) return -ENODEV; panel->backlight.min = get_backlight_min_vbt(connector); - val = _vlv_get_backlight(dev, PIPE_A); + val = _vlv_get_backlight(dev, pipe); panel->backlight.level = intel_panel_compute_brightness(connector, val); panel->backlight.enabled = (ctl2 & BLM_PWM_ENABLE) && @@ -1271,7 +1274,7 @@ static int vlv_setup_backlight(struct intel_connector *connector) return 0; } -int intel_panel_setup_backlight(struct drm_connector *connector) +int intel_panel_setup_backlight(struct drm_connector *connector, enum pipe pipe) { struct drm_device *dev = connector->dev; struct drm_i915_private *dev_priv = dev->dev_private; @@ -1290,7 +1293,7 @@ int intel_panel_setup_backlight(struct drm_connector *connector) /* set level and max in panel struct */ mutex_lock(&dev_priv->backlight_lock); - ret = dev_priv->display.setup_backlight(intel_connector); + ret = dev_priv->display.setup_backlight(intel_connector, pipe); mutex_unlock(&dev_priv->backlight_lock); if (ret) { |
