The functions are identical so unify them.

Signed-off-by: Patrik Jakobsson <patrik.r.jakobs...@gmail.com>
---
 drivers/gpu/drm/gma500/cdv_intel_lvds.c | 20 +-------------------
 drivers/gpu/drm/gma500/gma_lvds.c       | 18 ++++++++++++++++++
 drivers/gpu/drm/gma500/gma_lvds.h       |  1 +
 drivers/gpu/drm/gma500/oaktrail_lvds.c  | 18 +-----------------
 drivers/gpu/drm/gma500/psb_intel_lvds.c | 20 +-------------------
 5 files changed, 22 insertions(+), 55 deletions(-)

diff --git a/drivers/gpu/drm/gma500/cdv_intel_lvds.c 
b/drivers/gpu/drm/gma500/cdv_intel_lvds.c
index 65532308f1e7..4f0754b8c0b0 100644
--- a/drivers/gpu/drm/gma500/cdv_intel_lvds.c
+++ b/drivers/gpu/drm/gma500/cdv_intel_lvds.c
@@ -39,24 +39,6 @@
 #define PSB_BACKLIGHT_PWM_CTL_SHIFT    (16)
 #define PSB_BACKLIGHT_PWM_POLARITY_BIT_CLEAR (0xFFFE)
 
-static void cdv_intel_lvds_prepare(struct drm_encoder *encoder)
-{
-       struct drm_device *dev = encoder->dev;
-       struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
-       struct psb_intel_mode_device *mode_dev = &dev_priv->mode_dev;
-
-       if (!gma_power_begin(dev, true))
-               return;
-
-       mode_dev->saveBLC_PWM_CTL = REG_READ(BLC_PWM_CTL);
-       mode_dev->backlight_duty_cycle = (mode_dev->saveBLC_PWM_CTL &
-                                         BACKLIGHT_DUTY_CYCLE_MASK);
-
-       gma_lvds_set_power(dev, false);
-
-       gma_power_end(dev);
-}
-
 static void cdv_intel_lvds_commit(struct drm_encoder *encoder)
 {
        struct drm_device *dev = encoder->dev;
@@ -207,7 +189,7 @@ static const struct drm_encoder_helper_funcs
                                        cdv_intel_lvds_helper_funcs = {
        .dpms = gma_lvds_encoder_dpms,
        .mode_fixup = gma_lvds_mode_fixup,
-       .prepare = cdv_intel_lvds_prepare,
+       .prepare = gma_lvds_prepare,
        .mode_set = cdv_intel_lvds_mode_set,
        .commit = cdv_intel_lvds_commit,
 };
diff --git a/drivers/gpu/drm/gma500/gma_lvds.c 
b/drivers/gpu/drm/gma500/gma_lvds.c
index 32ecf5835828..d0a97eeac38b 100644
--- a/drivers/gpu/drm/gma500/gma_lvds.c
+++ b/drivers/gpu/drm/gma500/gma_lvds.c
@@ -268,3 +268,21 @@ bool gma_lvds_mode_fixup(struct drm_encoder *encoder,
        return true;
 }
 
+void gma_lvds_prepare(struct drm_encoder *encoder)
+{
+       struct drm_device *dev = encoder->dev;
+       struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
+       struct psb_intel_mode_device *mode_dev = &dev_priv->mode_dev;
+
+       if (!gma_power_begin(dev, true))
+               return;
+
+       mode_dev->saveBLC_PWM_CTL = REG_READ(BLC_PWM_CTL);
+       mode_dev->backlight_duty_cycle = (mode_dev->saveBLC_PWM_CTL &
+                                         BACKLIGHT_DUTY_CYCLE_MASK);
+
+       gma_lvds_set_power(dev, false);
+
+       gma_power_end(dev);
+}
+
diff --git a/drivers/gpu/drm/gma500/gma_lvds.h 
b/drivers/gpu/drm/gma500/gma_lvds.h
index 950ab7b88ad6..c1a7b3611d27 100644
--- a/drivers/gpu/drm/gma500/gma_lvds.h
+++ b/drivers/gpu/drm/gma500/gma_lvds.h
@@ -33,5 +33,6 @@ void gma_lvds_restore(struct drm_connector *connector);
 bool gma_lvds_mode_fixup(struct drm_encoder *encoder,
                         const struct drm_display_mode *mode,
                         struct drm_display_mode *adjusted_mode);
+void gma_lvds_prepare(struct drm_encoder *encoder);
 
 #endif
diff --git a/drivers/gpu/drm/gma500/oaktrail_lvds.c 
b/drivers/gpu/drm/gma500/oaktrail_lvds.c
index 16699b0fbbc9..dba0ca4b73a0 100644
--- a/drivers/gpu/drm/gma500/oaktrail_lvds.c
+++ b/drivers/gpu/drm/gma500/oaktrail_lvds.c
@@ -105,22 +105,6 @@ static void oaktrail_lvds_mode_set(struct drm_encoder 
*encoder,
        gma_power_end(dev);
 }
 
-static void oaktrail_lvds_prepare(struct drm_encoder *encoder)
-{
-       struct drm_device *dev = encoder->dev;
-       struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
-       struct psb_intel_mode_device *mode_dev = &dev_priv->mode_dev;
-
-       if (!gma_power_begin(dev, true))
-               return;
-
-       mode_dev->saveBLC_PWM_CTL = REG_READ(BLC_PWM_CTL);
-       mode_dev->backlight_duty_cycle = (mode_dev->saveBLC_PWM_CTL &
-                                         BACKLIGHT_DUTY_CYCLE_MASK);
-       gma_lvds_set_power(dev, false);
-       gma_power_end(dev);
-}
-
 static void oaktrail_lvds_commit(struct drm_encoder *encoder)
 {
        struct drm_device *dev = encoder->dev;
@@ -135,7 +119,7 @@ static void oaktrail_lvds_commit(struct drm_encoder 
*encoder)
 static const struct drm_encoder_helper_funcs oaktrail_lvds_helper_funcs = {
        .dpms = gma_lvds_encoder_dpms,
        .mode_fixup = gma_lvds_mode_fixup,
-       .prepare = oaktrail_lvds_prepare,
+       .prepare = gma_lvds_prepare,
        .mode_set = oaktrail_lvds_mode_set,
        .commit = oaktrail_lvds_commit,
 };
diff --git a/drivers/gpu/drm/gma500/psb_intel_lvds.c 
b/drivers/gpu/drm/gma500/psb_intel_lvds.c
index 317bd1fcfa2a..e4258205a262 100644
--- a/drivers/gpu/drm/gma500/psb_intel_lvds.c
+++ b/drivers/gpu/drm/gma500/psb_intel_lvds.c
@@ -132,24 +132,6 @@ void psb_intel_lvds_set_brightness(struct drm_device *dev, 
int level)
                psb_lvds_pwm_set_brightness(dev, level);
 }
 
-static void psb_intel_lvds_prepare(struct drm_encoder *encoder)
-{
-       struct drm_device *dev = encoder->dev;
-       struct drm_psb_private *dev_priv = to_drm_psb_private(dev);
-       struct psb_intel_mode_device *mode_dev = &dev_priv->mode_dev;
-
-       if (!gma_power_begin(dev, true))
-               return;
-
-       mode_dev->saveBLC_PWM_CTL = REG_READ(BLC_PWM_CTL);
-       mode_dev->backlight_duty_cycle = (mode_dev->saveBLC_PWM_CTL &
-                                         BACKLIGHT_DUTY_CYCLE_MASK);
-
-       gma_lvds_set_power(dev, false);
-
-       gma_power_end(dev);
-}
-
 static void psb_intel_lvds_commit(struct drm_encoder *encoder)
 {
        struct drm_device *dev = encoder->dev;
@@ -303,7 +285,7 @@ int psb_intel_lvds_set_property(struct drm_connector 
*connector,
 static const struct drm_encoder_helper_funcs psb_intel_lvds_helper_funcs = {
        .dpms = gma_lvds_encoder_dpms,
        .mode_fixup = gma_lvds_mode_fixup,
-       .prepare = psb_intel_lvds_prepare,
+       .prepare = gma_lvds_prepare,
        .mode_set = psb_intel_lvds_mode_set,
        .commit = psb_intel_lvds_commit,
 };
-- 
2.36.1

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