drm/i915: nuke get max backlight functions

No longer needed. We now have fully cached max backlight values.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index e726ab9..247e922 100644 (file)
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -416,7 +416,6 @@ struct drm_i915_display_funcs {
        /* pll clock increase/decrease */
 
        int (*setup_backlight)(struct intel_connector *connector);
-       uint32_t (*get_max_backlight)(struct intel_connector *connector);
        uint32_t (*get_backlight)(struct intel_connector *connector);
        void (*set_backlight)(struct intel_connector *connector,
                              uint32_t level);

diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
index da088e3..eadfe33 100644 (file)
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -325,132 +325,6 @@ out:
        pipe_config->gmch_pfit.lvds_border_bits = border;
 }
 
-static int is_backlight_combination_mode(struct drm_device *dev)
-{
-       struct drm_i915_private *dev_priv = dev->dev_private;
-
-       if (IS_GEN4(dev))
-               return I915_READ(BLC_PWM_CTL2) & BLM_COMBINATION_MODE;
-
-       if (IS_GEN2(dev))
-               return I915_READ(BLC_PWM_CTL) & BLM_LEGACY_MODE;
-
-       return 0;
-}
-
-static u32 pch_get_max_backlight(struct intel_connector *connector)
-{
-       struct drm_device *dev = connector->base.dev;
-       struct drm_i915_private *dev_priv = dev->dev_private;
-       u32 val;
-
-       val = I915_READ(BLC_PWM_PCH_CTL2);
-       if (dev_priv->regfile.saveBLC_PWM_CTL2 == 0) {
-               dev_priv->regfile.saveBLC_PWM_CTL2 = val;
-       } else if (val == 0) {
-               val = dev_priv->regfile.saveBLC_PWM_CTL2;
-               I915_WRITE(BLC_PWM_PCH_CTL2, val);
-       }
-
-       val >>= 16;
-
-       return val;
-}
-
-static u32 i9xx_get_max_backlight(struct intel_connector *connector)
-{
-       struct drm_device *dev = connector->base.dev;
-       struct drm_i915_private *dev_priv = dev->dev_private;
-       u32 val;
-
-       val = I915_READ(BLC_PWM_CTL);
-       if (dev_priv->regfile.saveBLC_PWM_CTL == 0) {
-               dev_priv->regfile.saveBLC_PWM_CTL = val;
-       } else if (val == 0) {
-               val = dev_priv->regfile.saveBLC_PWM_CTL;
-               I915_WRITE(BLC_PWM_CTL, val);
-       }
-
-       val >>= 17;
-
-       if (is_backlight_combination_mode(dev))
-               val *= 0xff;
-
-       return val;
-}
-
-static u32 i965_get_max_backlight(struct intel_connector *connector)
-{
-       struct drm_device *dev = connector->base.dev;
-       struct drm_i915_private *dev_priv = dev->dev_private;
-       u32 val;
-
-       val = I915_READ(BLC_PWM_CTL);
-       if (dev_priv->regfile.saveBLC_PWM_CTL == 0) {
-               dev_priv->regfile.saveBLC_PWM_CTL = val;
-               dev_priv->regfile.saveBLC_PWM_CTL2 = I915_READ(BLC_PWM_CTL2);
-       } else if (val == 0) {
-               val = dev_priv->regfile.saveBLC_PWM_CTL;
-               I915_WRITE(BLC_PWM_CTL, val);
-               I915_WRITE(BLC_PWM_CTL2, dev_priv->regfile.saveBLC_PWM_CTL2);
-       }
-
-       val >>= 16;
-
-       if (is_backlight_combination_mode(dev))
-               val *= 0xff;
-
-       return val;
-}
-
-static u32 _vlv_get_max_backlight(struct drm_device *dev, enum pipe pipe)
-{
-       struct drm_i915_private *dev_priv = dev->dev_private;
-       u32 val;
-
-       val = I915_READ(VLV_BLC_PWM_CTL(pipe));
-       if (dev_priv->regfile.saveBLC_PWM_CTL == 0) {
-               dev_priv->regfile.saveBLC_PWM_CTL = val;
-               dev_priv->regfile.saveBLC_PWM_CTL2 =
-                       I915_READ(VLV_BLC_PWM_CTL2(pipe));
-       } else if (val == 0) {
-               val = dev_priv->regfile.saveBLC_PWM_CTL;
-               I915_WRITE(VLV_BLC_PWM_CTL(pipe), val);
-               I915_WRITE(VLV_BLC_PWM_CTL2(pipe),
-                          dev_priv->regfile.saveBLC_PWM_CTL2);
-       }
-
-       if (!val)
-               val = 0x0f42ffff;
-
-       val >>= 16;
-
-       return val;
-}
-
-static u32 vlv_get_max_backlight(struct intel_connector *connector)
-{
-       struct drm_device *dev = connector->base.dev;
-       enum pipe pipe = intel_get_pipe_from_connector(connector);
-
-       return _vlv_get_max_backlight(dev, pipe);
-}
-
-static u32 intel_panel_get_max_backlight(struct intel_connector *connector)
-{
-       struct drm_device *dev = connector->base.dev;
-       struct drm_i915_private *dev_priv = dev->dev_private;
-       u32 max;
-
-       WARN_ON_SMP(!spin_is_locked(&dev_priv->backlight_lock));
-
-       max = dev_priv->display.get_max_backlight(connector);
-
-       DRM_DEBUG_DRIVER("max backlight PWM = %d\n", max);
-
-       return max;
-}
-
 static int i915_panel_invert_brightness;
 MODULE_PARM_DESC(invert_brightness, "Invert backlight brightness "
        "(-1 force normal, 0 machine defaults, 1 force inversion), please "
@@ -866,9 +740,6 @@ void intel_panel_enable_backlight(struct intel_connector *connector)
 
        spin_lock_irqsave(&dev_priv->backlight_lock, flags);
 
-       /* XXX: transitional, call to make sure freq is set */
-       intel_panel_get_max_backlight(connector);
-
        WARN_ON(panel->backlight.max == 0);
 
        if (panel->backlight.level == 0) {
@@ -1171,28 +1042,24 @@ void intel_panel_init_backlight_funcs(struct drm_device *dev)
                dev_priv->display.disable_backlight = pch_disable_backlight;
                dev_priv->display.set_backlight = pch_set_backlight;
                dev_priv->display.get_backlight = pch_get_backlight;
-               dev_priv->display.get_max_backlight = pch_get_max_backlight;
        } else if (IS_VALLEYVIEW(dev)) {
                dev_priv->display.setup_backlight = vlv_setup_backlight;
                dev_priv->display.enable_backlight = vlv_enable_backlight;
                dev_priv->display.disable_backlight = vlv_disable_backlight;
                dev_priv->display.set_backlight = vlv_set_backlight;
                dev_priv->display.get_backlight = vlv_get_backlight;
-               dev_priv->display.get_max_backlight = vlv_get_max_backlight;
        } else if (IS_GEN4(dev)) {
                dev_priv->display.setup_backlight = i965_setup_backlight;
                dev_priv->display.enable_backlight = i965_enable_backlight;
                dev_priv->display.disable_backlight = i965_disable_backlight;
                dev_priv->display.set_backlight = i9xx_set_backlight;
                dev_priv->display.get_backlight = i9xx_get_backlight;
-               dev_priv->display.get_max_backlight = i965_get_max_backlight;
        } else {
                dev_priv->display.setup_backlight = i9xx_setup_backlight;
                dev_priv->display.enable_backlight = i9xx_enable_backlight;
                dev_priv->display.disable_backlight = i9xx_disable_backlight;
                dev_priv->display.set_backlight = i9xx_set_backlight;
                dev_priv->display.get_backlight = i9xx_get_backlight;
-               dev_priv->display.get_max_backlight = i9xx_get_max_backlight;
        }
 }