With the implicit dev_priv usage gone, we can rename dev_priv to i915
throughout. Do some drive-by whitespace cleanups while at it.

Signed-off-by: Jani Nikula <jani.nik...@intel.com>
---
 .../gpu/drm/i915/display/intel_backlight.c    | 517 +++++++++---------
 1 file changed, 248 insertions(+), 269 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_backlight.c 
b/drivers/gpu/drm/i915/display/intel_backlight.c
index b3c44b054d08..c13b8a678063 100644
--- a/drivers/gpu/drm/i915/display/intel_backlight.c
+++ b/drivers/gpu/drm/i915/display/intel_backlight.c
@@ -83,16 +83,16 @@ static u32 scale_hw_to_user(struct intel_connector 
*connector,
 
 u32 intel_backlight_invert_pwm_level(struct intel_connector *connector, u32 
val)
 {
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        struct intel_panel *panel = &connector->panel;
 
-       drm_WARN_ON(&dev_priv->drm, panel->backlight.pwm_level_max == 0);
+       drm_WARN_ON(&i915->drm, panel->backlight.pwm_level_max == 0);
 
-       if (dev_priv->params.invert_brightness < 0)
+       if (i915->params.invert_brightness < 0)
                return val;
 
-       if (dev_priv->params.invert_brightness > 0 ||
-           intel_has_quirk(dev_priv, QUIRK_INVERT_BRIGHTNESS)) {
+       if (i915->params.invert_brightness > 0 ||
+           intel_has_quirk(i915, QUIRK_INVERT_BRIGHTNESS)) {
                return panel->backlight.pwm_level_max - val + 
panel->backlight.pwm_level_min;
        }
 
@@ -111,10 +111,10 @@ void intel_backlight_set_pwm_level(const struct 
drm_connector_state *conn_state,
 
 u32 intel_backlight_level_to_pwm(struct intel_connector *connector, u32 val)
 {
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        struct intel_panel *panel = &connector->panel;
 
-       drm_WARN_ON_ONCE(&dev_priv->drm,
+       drm_WARN_ON_ONCE(&i915->drm,
                         panel->backlight.max == 0 || 
panel->backlight.pwm_level_max == 0);
 
        val = scale(val, panel->backlight.min, panel->backlight.max,
@@ -125,14 +125,14 @@ u32 intel_backlight_level_to_pwm(struct intel_connector 
*connector, u32 val)
 
 u32 intel_backlight_level_from_pwm(struct intel_connector *connector, u32 val)
 {
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        struct intel_panel *panel = &connector->panel;
 
-       drm_WARN_ON_ONCE(&dev_priv->drm,
+       drm_WARN_ON_ONCE(&i915->drm,
                         panel->backlight.max == 0 || 
panel->backlight.pwm_level_max == 0);
 
-       if (dev_priv->params.invert_brightness > 0 ||
-           (dev_priv->params.invert_brightness == 0 && 
intel_has_quirk(dev_priv, QUIRK_INVERT_BRIGHTNESS)))
+       if (i915->params.invert_brightness > 0 ||
+           (i915->params.invert_brightness == 0 && intel_has_quirk(i915, 
QUIRK_INVERT_BRIGHTNESS)))
                val = panel->backlight.pwm_level_max - (val - 
panel->backlight.pwm_level_min);
 
        return scale(val, panel->backlight.pwm_level_min, 
panel->backlight.pwm_level_max,
@@ -141,32 +141,32 @@ u32 intel_backlight_level_from_pwm(struct intel_connector 
*connector, u32 val)
 
 static u32 lpt_get_backlight(struct intel_connector *connector, enum pipe 
unused)
 {
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
 
-       return intel_de_read(dev_priv, BLC_PWM_PCH_CTL2) & 
BACKLIGHT_DUTY_CYCLE_MASK;
+       return intel_de_read(i915, BLC_PWM_PCH_CTL2) & 
BACKLIGHT_DUTY_CYCLE_MASK;
 }
 
 static u32 pch_get_backlight(struct intel_connector *connector, enum pipe 
unused)
 {
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
 
-       return intel_de_read(dev_priv, BLC_PWM_CPU_CTL) & 
BACKLIGHT_DUTY_CYCLE_MASK;
+       return intel_de_read(i915, BLC_PWM_CPU_CTL) & BACKLIGHT_DUTY_CYCLE_MASK;
 }
 
 static u32 i9xx_get_backlight(struct intel_connector *connector, enum pipe 
unused)
 {
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        struct intel_panel *panel = &connector->panel;
        u32 val;
 
-       val = intel_de_read(dev_priv, BLC_PWM_CTL(dev_priv)) & 
BACKLIGHT_DUTY_CYCLE_MASK;
-       if (DISPLAY_VER(dev_priv) < 4)
+       val = intel_de_read(i915, BLC_PWM_CTL(i915)) & 
BACKLIGHT_DUTY_CYCLE_MASK;
+       if (DISPLAY_VER(i915) < 4)
                val >>= 1;
 
        if (panel->backlight.combination_mode) {
                u8 lbpc;
 
-               pci_read_config_byte(to_pci_dev(dev_priv->drm.dev), LBPC, 
&lbpc);
+               pci_read_config_byte(to_pci_dev(i915->drm.dev), LBPC, &lbpc);
                val *= lbpc;
        }
 
@@ -175,21 +175,20 @@ static u32 i9xx_get_backlight(struct intel_connector 
*connector, enum pipe unuse
 
 static u32 vlv_get_backlight(struct intel_connector *connector, enum pipe pipe)
 {
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
 
-       if (drm_WARN_ON(&dev_priv->drm, pipe != PIPE_A && pipe != PIPE_B))
+       if (drm_WARN_ON(&i915->drm, pipe != PIPE_A && pipe != PIPE_B))
                return 0;
 
-       return intel_de_read(dev_priv, VLV_BLC_PWM_CTL(pipe)) & 
BACKLIGHT_DUTY_CYCLE_MASK;
+       return intel_de_read(i915, VLV_BLC_PWM_CTL(pipe)) & 
BACKLIGHT_DUTY_CYCLE_MASK;
 }
 
 static u32 bxt_get_backlight(struct intel_connector *connector, enum pipe 
unused)
 {
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        struct intel_panel *panel = &connector->panel;
 
-       return intel_de_read(dev_priv,
-                            BXT_BLC_PWM_DUTY(panel->backlight.controller));
+       return intel_de_read(i915, 
BXT_BLC_PWM_DUTY(panel->backlight.controller));
 }
 
 static u32 ext_pwm_get_backlight(struct intel_connector *connector, enum pipe 
unused)
@@ -204,69 +203,69 @@ static u32 ext_pwm_get_backlight(struct intel_connector 
*connector, enum pipe un
 static void lpt_set_backlight(const struct drm_connector_state *conn_state, 
u32 level)
 {
        struct intel_connector *connector = 
to_intel_connector(conn_state->connector);
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
+       u32 val;
 
-       u32 val = intel_de_read(dev_priv, BLC_PWM_PCH_CTL2) & 
~BACKLIGHT_DUTY_CYCLE_MASK;
-       intel_de_write(dev_priv, BLC_PWM_PCH_CTL2, val | level);
+       val = intel_de_read(i915, BLC_PWM_PCH_CTL2) & 
~BACKLIGHT_DUTY_CYCLE_MASK;
+       intel_de_write(i915, BLC_PWM_PCH_CTL2, val | level);
 }
 
 static void pch_set_backlight(const struct drm_connector_state *conn_state, 
u32 level)
 {
        struct intel_connector *connector = 
to_intel_connector(conn_state->connector);
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        u32 tmp;
 
-       tmp = intel_de_read(dev_priv, BLC_PWM_CPU_CTL) & 
~BACKLIGHT_DUTY_CYCLE_MASK;
-       intel_de_write(dev_priv, BLC_PWM_CPU_CTL, tmp | level);
+       tmp = intel_de_read(i915, BLC_PWM_CPU_CTL) & ~BACKLIGHT_DUTY_CYCLE_MASK;
+       intel_de_write(i915, BLC_PWM_CPU_CTL, tmp | level);
 }
 
 static void i9xx_set_backlight(const struct drm_connector_state *conn_state, 
u32 level)
 {
        struct intel_connector *connector = 
to_intel_connector(conn_state->connector);
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        struct intel_panel *panel = &connector->panel;
        u32 tmp, mask;
 
-       drm_WARN_ON(&dev_priv->drm, panel->backlight.pwm_level_max == 0);
+       drm_WARN_ON(&i915->drm, panel->backlight.pwm_level_max == 0);
 
        if (panel->backlight.combination_mode) {
                u8 lbpc;
 
                lbpc = level * 0xfe / panel->backlight.pwm_level_max + 1;
                level /= lbpc;
-               pci_write_config_byte(to_pci_dev(dev_priv->drm.dev), LBPC, 
lbpc);
+               pci_write_config_byte(to_pci_dev(i915->drm.dev), LBPC, lbpc);
        }
 
-       if (DISPLAY_VER(dev_priv) == 4) {
+       if (DISPLAY_VER(i915) == 4) {
                mask = BACKLIGHT_DUTY_CYCLE_MASK;
        } else {
                level <<= 1;
                mask = BACKLIGHT_DUTY_CYCLE_MASK_PNV;
        }
 
-       tmp = intel_de_read(dev_priv, BLC_PWM_CTL(dev_priv)) & ~mask;
-       intel_de_write(dev_priv, BLC_PWM_CTL(dev_priv), tmp | level);
+       tmp = intel_de_read(i915, BLC_PWM_CTL(i915)) & ~mask;
+       intel_de_write(i915, BLC_PWM_CTL(i915), tmp | level);
 }
 
 static void vlv_set_backlight(const struct drm_connector_state *conn_state, 
u32 level)
 {
        struct intel_connector *connector = 
to_intel_connector(conn_state->connector);
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        enum pipe pipe = to_intel_crtc(conn_state->crtc)->pipe;
        u32 tmp;
 
-       tmp = intel_de_read(dev_priv, VLV_BLC_PWM_CTL(pipe)) & 
~BACKLIGHT_DUTY_CYCLE_MASK;
-       intel_de_write(dev_priv, VLV_BLC_PWM_CTL(pipe), tmp | level);
+       tmp = intel_de_read(i915, VLV_BLC_PWM_CTL(pipe)) & 
~BACKLIGHT_DUTY_CYCLE_MASK;
+       intel_de_write(i915, VLV_BLC_PWM_CTL(pipe), tmp | level);
 }
 
 static void bxt_set_backlight(const struct drm_connector_state *conn_state, 
u32 level)
 {
        struct intel_connector *connector = 
to_intel_connector(conn_state->connector);
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        struct intel_panel *panel = &connector->panel;
 
-       intel_de_write(dev_priv,
-                      BXT_BLC_PWM_DUTY(panel->backlight.controller), level);
+       intel_de_write(i915, BXT_BLC_PWM_DUTY(panel->backlight.controller), 
level);
 }
 
 static void ext_pwm_set_backlight(const struct drm_connector_state 
*conn_state, u32 level)
@@ -296,7 +295,7 @@ void intel_backlight_set_acpi(const struct 
drm_connector_state *conn_state,
                              u32 user_level, u32 user_max)
 {
        struct intel_connector *connector = 
to_intel_connector(conn_state->connector);
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        struct intel_panel *panel = &connector->panel;
        u32 hw_level;
 
@@ -309,9 +308,9 @@ void intel_backlight_set_acpi(const struct 
drm_connector_state *conn_state,
        if (!panel->backlight.present || !conn_state->crtc)
                return;
 
-       mutex_lock(&dev_priv->display.backlight.lock);
+       mutex_lock(&i915->display.backlight.lock);
 
-       drm_WARN_ON(&dev_priv->drm, panel->backlight.max == 0);
+       drm_WARN_ON(&i915->drm, panel->backlight.max == 0);
 
        hw_level = clamp_user_to_hw(connector, user_level, user_max);
        panel->backlight.level = hw_level;
@@ -325,13 +324,13 @@ void intel_backlight_set_acpi(const struct 
drm_connector_state *conn_state,
        if (panel->backlight.enabled)
                intel_panel_actually_set_backlight(conn_state, hw_level);
 
-       mutex_unlock(&dev_priv->display.backlight.lock);
+       mutex_unlock(&i915->display.backlight.lock);
 }
 
 static void lpt_disable_backlight(const struct drm_connector_state 
*old_conn_state, u32 level)
 {
        struct intel_connector *connector = 
to_intel_connector(old_conn_state->connector);
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        u32 tmp;
 
        intel_backlight_set_pwm_level(old_conn_state, level);
@@ -344,31 +343,29 @@ static void lpt_disable_backlight(const struct 
drm_connector_state *old_conn_sta
         * This needs rework if we need to add support for CPU PWM on PCH split
         * platforms.
         */
-       tmp = intel_de_read(dev_priv, BLC_PWM_CPU_CTL2);
+       tmp = intel_de_read(i915, BLC_PWM_CPU_CTL2);
        if (tmp & BLM_PWM_ENABLE) {
-               drm_dbg_kms(&dev_priv->drm,
-                           "cpu backlight was enabled, disabling\n");
-               intel_de_write(dev_priv, BLC_PWM_CPU_CTL2,
-                              tmp & ~BLM_PWM_ENABLE);
+               drm_dbg_kms(&i915->drm, "cpu backlight was enabled, 
disabling\n");
+               intel_de_write(i915, BLC_PWM_CPU_CTL2, tmp & ~BLM_PWM_ENABLE);
        }
 
-       tmp = intel_de_read(dev_priv, BLC_PWM_PCH_CTL1);
-       intel_de_write(dev_priv, BLC_PWM_PCH_CTL1, tmp & ~BLM_PCH_PWM_ENABLE);
+       tmp = intel_de_read(i915, BLC_PWM_PCH_CTL1);
+       intel_de_write(i915, BLC_PWM_PCH_CTL1, tmp & ~BLM_PCH_PWM_ENABLE);
 }
 
 static void pch_disable_backlight(const struct drm_connector_state 
*old_conn_state, u32 val)
 {
        struct intel_connector *connector = 
to_intel_connector(old_conn_state->connector);
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        u32 tmp;
 
        intel_backlight_set_pwm_level(old_conn_state, val);
 
-       tmp = intel_de_read(dev_priv, BLC_PWM_CPU_CTL2);
-       intel_de_write(dev_priv, BLC_PWM_CPU_CTL2, tmp & ~BLM_PWM_ENABLE);
+       tmp = intel_de_read(i915, BLC_PWM_CPU_CTL2);
+       intel_de_write(i915, BLC_PWM_CPU_CTL2, tmp & ~BLM_PWM_ENABLE);
 
-       tmp = intel_de_read(dev_priv, BLC_PWM_PCH_CTL1);
-       intel_de_write(dev_priv, BLC_PWM_PCH_CTL1, tmp & ~BLM_PCH_PWM_ENABLE);
+       tmp = intel_de_read(i915, BLC_PWM_PCH_CTL1);
+       intel_de_write(i915, BLC_PWM_PCH_CTL1, tmp & ~BLM_PCH_PWM_ENABLE);
 }
 
 static void i9xx_disable_backlight(const struct drm_connector_state 
*old_conn_state, u32 val)
@@ -378,62 +375,59 @@ static void i9xx_disable_backlight(const struct 
drm_connector_state *old_conn_st
 
 static void i965_disable_backlight(const struct drm_connector_state 
*old_conn_state, u32 val)
 {
-       struct drm_i915_private *dev_priv = 
to_i915(old_conn_state->connector->dev);
+       struct drm_i915_private *i915 = to_i915(old_conn_state->connector->dev);
        u32 tmp;
 
        intel_backlight_set_pwm_level(old_conn_state, val);
 
-       tmp = intel_de_read(dev_priv, BLC_PWM_CTL2(dev_priv));
-       intel_de_write(dev_priv, BLC_PWM_CTL2(dev_priv), tmp & ~BLM_PWM_ENABLE);
+       tmp = intel_de_read(i915, BLC_PWM_CTL2(i915));
+       intel_de_write(i915, BLC_PWM_CTL2(i915), tmp & ~BLM_PWM_ENABLE);
 }
 
 static void vlv_disable_backlight(const struct drm_connector_state 
*old_conn_state, u32 val)
 {
        struct intel_connector *connector = 
to_intel_connector(old_conn_state->connector);
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        enum pipe pipe = to_intel_crtc(old_conn_state->crtc)->pipe;
        u32 tmp;
 
        intel_backlight_set_pwm_level(old_conn_state, val);
 
-       tmp = intel_de_read(dev_priv, VLV_BLC_PWM_CTL2(pipe));
-       intel_de_write(dev_priv, VLV_BLC_PWM_CTL2(pipe),
-                      tmp & ~BLM_PWM_ENABLE);
+       tmp = intel_de_read(i915, VLV_BLC_PWM_CTL2(pipe));
+       intel_de_write(i915, VLV_BLC_PWM_CTL2(pipe), tmp & ~BLM_PWM_ENABLE);
 }
 
 static void bxt_disable_backlight(const struct drm_connector_state 
*old_conn_state, u32 val)
 {
        struct intel_connector *connector = 
to_intel_connector(old_conn_state->connector);
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        struct intel_panel *panel = &connector->panel;
        u32 tmp;
 
        intel_backlight_set_pwm_level(old_conn_state, val);
 
-       tmp = intel_de_read(dev_priv,
-                           BXT_BLC_PWM_CTL(panel->backlight.controller));
-       intel_de_write(dev_priv, BXT_BLC_PWM_CTL(panel->backlight.controller),
+       tmp = intel_de_read(i915, BXT_BLC_PWM_CTL(panel->backlight.controller));
+       intel_de_write(i915, BXT_BLC_PWM_CTL(panel->backlight.controller),
                       tmp & ~BXT_BLC_PWM_ENABLE);
 
        if (panel->backlight.controller == 1) {
-               val = intel_de_read(dev_priv, UTIL_PIN_CTL);
+               val = intel_de_read(i915, UTIL_PIN_CTL);
                val &= ~UTIL_PIN_ENABLE;
-               intel_de_write(dev_priv, UTIL_PIN_CTL, val);
+               intel_de_write(i915, UTIL_PIN_CTL, val);
        }
 }
 
 static void cnp_disable_backlight(const struct drm_connector_state 
*old_conn_state, u32 val)
 {
        struct intel_connector *connector = 
to_intel_connector(old_conn_state->connector);
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        struct intel_panel *panel = &connector->panel;
        u32 tmp;
 
        intel_backlight_set_pwm_level(old_conn_state, val);
 
-       tmp = intel_de_read(dev_priv,
-                           BXT_BLC_PWM_CTL(panel->backlight.controller));
-       intel_de_write(dev_priv, BXT_BLC_PWM_CTL(panel->backlight.controller),
+       tmp = intel_de_read(i915, BXT_BLC_PWM_CTL(panel->backlight.controller));
+       intel_de_write(i915, BXT_BLC_PWM_CTL(panel->backlight.controller),
                       tmp & ~BXT_BLC_PWM_ENABLE);
 }
 
@@ -451,7 +445,7 @@ static void ext_pwm_disable_backlight(const struct 
drm_connector_state *old_conn
 void intel_backlight_disable(const struct drm_connector_state *old_conn_state)
 {
        struct intel_connector *connector = 
to_intel_connector(old_conn_state->connector);
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        struct intel_panel *panel = &connector->panel;
 
        if (!panel->backlight.present)
@@ -463,68 +457,66 @@ void intel_backlight_disable(const struct 
drm_connector_state *old_conn_state)
         * backlight. This will leave the backlight on unnecessarily when
         * another client is not activated.
         */
-       if (dev_priv->drm.switch_power_state == DRM_SWITCH_POWER_CHANGING) {
-               drm_dbg_kms(&dev_priv->drm,
-                           "Skipping backlight disable on vga switch\n");
+       if (i915->drm.switch_power_state == DRM_SWITCH_POWER_CHANGING) {
+               drm_dbg_kms(&i915->drm, "Skipping backlight disable on vga 
switch\n");
                return;
        }
 
-       mutex_lock(&dev_priv->display.backlight.lock);
+       mutex_lock(&i915->display.backlight.lock);
 
        if (panel->backlight.device)
                panel->backlight.device->props.power = FB_BLANK_POWERDOWN;
        panel->backlight.enabled = false;
        panel->backlight.funcs->disable(old_conn_state, 0);
 
-       mutex_unlock(&dev_priv->display.backlight.lock);
+       mutex_unlock(&i915->display.backlight.lock);
 }
 
 static void lpt_enable_backlight(const struct intel_crtc_state *crtc_state,
                                 const struct drm_connector_state *conn_state, 
u32 level)
 {
        struct intel_connector *connector = 
to_intel_connector(conn_state->connector);
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        struct intel_panel *panel = &connector->panel;
        u32 pch_ctl1, pch_ctl2, schicken;
 
-       pch_ctl1 = intel_de_read(dev_priv, BLC_PWM_PCH_CTL1);
+       pch_ctl1 = intel_de_read(i915, BLC_PWM_PCH_CTL1);
        if (pch_ctl1 & BLM_PCH_PWM_ENABLE) {
-               drm_dbg_kms(&dev_priv->drm, "pch backlight already enabled\n");
+               drm_dbg_kms(&i915->drm, "pch backlight already enabled\n");
                pch_ctl1 &= ~BLM_PCH_PWM_ENABLE;
-               intel_de_write(dev_priv, BLC_PWM_PCH_CTL1, pch_ctl1);
+               intel_de_write(i915, BLC_PWM_PCH_CTL1, pch_ctl1);
        }
 
-       if (HAS_PCH_LPT(dev_priv)) {
-               schicken = intel_de_read(dev_priv, SOUTH_CHICKEN2);
+       if (HAS_PCH_LPT(i915)) {
+               schicken = intel_de_read(i915, SOUTH_CHICKEN2);
                if (panel->backlight.alternate_pwm_increment)
                        schicken |= LPT_PWM_GRANULARITY;
                else
                        schicken &= ~LPT_PWM_GRANULARITY;
-               intel_de_write(dev_priv, SOUTH_CHICKEN2, schicken);
+               intel_de_write(i915, SOUTH_CHICKEN2, schicken);
        } else {
-               schicken = intel_de_read(dev_priv, SOUTH_CHICKEN1);
+               schicken = intel_de_read(i915, SOUTH_CHICKEN1);
                if (panel->backlight.alternate_pwm_increment)
                        schicken |= SPT_PWM_GRANULARITY;
                else
                        schicken &= ~SPT_PWM_GRANULARITY;
-               intel_de_write(dev_priv, SOUTH_CHICKEN1, schicken);
+               intel_de_write(i915, SOUTH_CHICKEN1, schicken);
        }
 
        pch_ctl2 = panel->backlight.pwm_level_max << 16;
-       intel_de_write(dev_priv, BLC_PWM_PCH_CTL2, pch_ctl2);
+       intel_de_write(i915, BLC_PWM_PCH_CTL2, pch_ctl2);
 
        pch_ctl1 = 0;
        if (panel->backlight.active_low_pwm)
                pch_ctl1 |= BLM_PCH_POLARITY;
 
        /* After LPT, override is the default. */
-       if (HAS_PCH_LPT(dev_priv))
+       if (HAS_PCH_LPT(i915))
                pch_ctl1 |= BLM_PCH_OVERRIDE_ENABLE;
 
-       intel_de_write(dev_priv, BLC_PWM_PCH_CTL1, pch_ctl1);
-       intel_de_posting_read(dev_priv, BLC_PWM_PCH_CTL1);
-       intel_de_write(dev_priv, BLC_PWM_PCH_CTL1,
-                      pch_ctl1 | BLM_PCH_PWM_ENABLE);
+       intel_de_write(i915, BLC_PWM_PCH_CTL1, pch_ctl1);
+       intel_de_posting_read(i915, BLC_PWM_PCH_CTL1);
+       intel_de_write(i915, BLC_PWM_PCH_CTL1, pch_ctl1 | BLM_PCH_PWM_ENABLE);
 
        /* This won't stick until the above enable. */
        intel_backlight_set_pwm_level(conn_state, level);
@@ -534,61 +526,60 @@ static void pch_enable_backlight(const struct 
intel_crtc_state *crtc_state,
                                 const struct drm_connector_state *conn_state, 
u32 level)
 {
        struct intel_connector *connector = 
to_intel_connector(conn_state->connector);
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        struct intel_panel *panel = &connector->panel;
        enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
        u32 cpu_ctl2, pch_ctl1, pch_ctl2;
 
-       cpu_ctl2 = intel_de_read(dev_priv, BLC_PWM_CPU_CTL2);
+       cpu_ctl2 = intel_de_read(i915, BLC_PWM_CPU_CTL2);
        if (cpu_ctl2 & BLM_PWM_ENABLE) {
-               drm_dbg_kms(&dev_priv->drm, "cpu backlight already enabled\n");
+               drm_dbg_kms(&i915->drm, "cpu backlight already enabled\n");
                cpu_ctl2 &= ~BLM_PWM_ENABLE;
-               intel_de_write(dev_priv, BLC_PWM_CPU_CTL2, cpu_ctl2);
+               intel_de_write(i915, BLC_PWM_CPU_CTL2, cpu_ctl2);
        }
 
-       pch_ctl1 = intel_de_read(dev_priv, BLC_PWM_PCH_CTL1);
+       pch_ctl1 = intel_de_read(i915, BLC_PWM_PCH_CTL1);
        if (pch_ctl1 & BLM_PCH_PWM_ENABLE) {
-               drm_dbg_kms(&dev_priv->drm, "pch backlight already enabled\n");
+               drm_dbg_kms(&i915->drm, "pch backlight already enabled\n");
                pch_ctl1 &= ~BLM_PCH_PWM_ENABLE;
-               intel_de_write(dev_priv, BLC_PWM_PCH_CTL1, pch_ctl1);
+               intel_de_write(i915, BLC_PWM_PCH_CTL1, pch_ctl1);
        }
 
        if (cpu_transcoder == TRANSCODER_EDP)
                cpu_ctl2 = BLM_TRANSCODER_EDP;
        else
                cpu_ctl2 = BLM_PIPE(cpu_transcoder);
-       intel_de_write(dev_priv, BLC_PWM_CPU_CTL2, cpu_ctl2);
-       intel_de_posting_read(dev_priv, BLC_PWM_CPU_CTL2);
-       intel_de_write(dev_priv, BLC_PWM_CPU_CTL2, cpu_ctl2 | BLM_PWM_ENABLE);
+       intel_de_write(i915, BLC_PWM_CPU_CTL2, cpu_ctl2);
+       intel_de_posting_read(i915, BLC_PWM_CPU_CTL2);
+       intel_de_write(i915, BLC_PWM_CPU_CTL2, cpu_ctl2 | BLM_PWM_ENABLE);
 
        /* This won't stick until the above enable. */
        intel_backlight_set_pwm_level(conn_state, level);
 
        pch_ctl2 = panel->backlight.pwm_level_max << 16;
-       intel_de_write(dev_priv, BLC_PWM_PCH_CTL2, pch_ctl2);
+       intel_de_write(i915, BLC_PWM_PCH_CTL2, pch_ctl2);
 
        pch_ctl1 = 0;
        if (panel->backlight.active_low_pwm)
                pch_ctl1 |= BLM_PCH_POLARITY;
 
-       intel_de_write(dev_priv, BLC_PWM_PCH_CTL1, pch_ctl1);
-       intel_de_posting_read(dev_priv, BLC_PWM_PCH_CTL1);
-       intel_de_write(dev_priv, BLC_PWM_PCH_CTL1,
-                      pch_ctl1 | BLM_PCH_PWM_ENABLE);
+       intel_de_write(i915, BLC_PWM_PCH_CTL1, pch_ctl1);
+       intel_de_posting_read(i915, BLC_PWM_PCH_CTL1);
+       intel_de_write(i915, BLC_PWM_PCH_CTL1, pch_ctl1 | BLM_PCH_PWM_ENABLE);
 }
 
 static void i9xx_enable_backlight(const struct intel_crtc_state *crtc_state,
                                  const struct drm_connector_state *conn_state, 
u32 level)
 {
        struct intel_connector *connector = 
to_intel_connector(conn_state->connector);
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        struct intel_panel *panel = &connector->panel;
        u32 ctl, freq;
 
-       ctl = intel_de_read(dev_priv, BLC_PWM_CTL(dev_priv));
+       ctl = intel_de_read(i915, BLC_PWM_CTL(i915));
        if (ctl & BACKLIGHT_DUTY_CYCLE_MASK_PNV) {
-               drm_dbg_kms(&dev_priv->drm, "backlight already enabled\n");
-               intel_de_write(dev_priv, BLC_PWM_CTL(dev_priv), 0);
+               drm_dbg_kms(&i915->drm, "backlight already enabled\n");
+               intel_de_write(i915, BLC_PWM_CTL(i915), 0);
        }
 
        freq = panel->backlight.pwm_level_max;
@@ -598,11 +589,11 @@ static void i9xx_enable_backlight(const struct 
intel_crtc_state *crtc_state,
        ctl = freq << 17;
        if (panel->backlight.combination_mode)
                ctl |= BLM_LEGACY_MODE;
-       if (IS_PINEVIEW(dev_priv) && panel->backlight.active_low_pwm)
+       if (IS_PINEVIEW(i915) && panel->backlight.active_low_pwm)
                ctl |= BLM_POLARITY_PNV;
 
-       intel_de_write(dev_priv, BLC_PWM_CTL(dev_priv), ctl);
-       intel_de_posting_read(dev_priv, BLC_PWM_CTL(dev_priv));
+       intel_de_write(i915, BLC_PWM_CTL(i915), ctl);
+       intel_de_posting_read(i915, BLC_PWM_CTL(i915));
 
        /* XXX: combine this into above write? */
        intel_backlight_set_pwm_level(conn_state, level);
@@ -612,24 +603,24 @@ static void i9xx_enable_backlight(const struct 
intel_crtc_state *crtc_state,
         * 855gm only, but checking for gen2 is safe, as 855gm is the only gen2
         * that has backlight.
         */
-       if (DISPLAY_VER(dev_priv) == 2)
-               intel_de_write(dev_priv, BLC_HIST_CTL(dev_priv), 
BLM_HISTOGRAM_ENABLE);
+       if (DISPLAY_VER(i915) == 2)
+               intel_de_write(i915, BLC_HIST_CTL(i915), BLM_HISTOGRAM_ENABLE);
 }
 
 static void i965_enable_backlight(const struct intel_crtc_state *crtc_state,
                                  const struct drm_connector_state *conn_state, 
u32 level)
 {
        struct intel_connector *connector = 
to_intel_connector(conn_state->connector);
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        struct intel_panel *panel = &connector->panel;
        enum pipe pipe = to_intel_crtc(conn_state->crtc)->pipe;
        u32 ctl, ctl2, freq;
 
-       ctl2 = intel_de_read(dev_priv, BLC_PWM_CTL2(dev_priv));
+       ctl2 = intel_de_read(i915, BLC_PWM_CTL2(i915));
        if (ctl2 & BLM_PWM_ENABLE) {
-               drm_dbg_kms(&dev_priv->drm, "backlight already enabled\n");
+               drm_dbg_kms(&i915->drm, "backlight already enabled\n");
                ctl2 &= ~BLM_PWM_ENABLE;
-               intel_de_write(dev_priv, BLC_PWM_CTL2(dev_priv), ctl2);
+               intel_de_write(i915, BLC_PWM_CTL2(i915), ctl2);
        }
 
        freq = panel->backlight.pwm_level_max;
@@ -637,16 +628,16 @@ static void i965_enable_backlight(const struct 
intel_crtc_state *crtc_state,
                freq /= 0xff;
 
        ctl = freq << 16;
-       intel_de_write(dev_priv, BLC_PWM_CTL(dev_priv), ctl);
+       intel_de_write(i915, BLC_PWM_CTL(i915), ctl);
 
        ctl2 = BLM_PIPE(pipe);
        if (panel->backlight.combination_mode)
                ctl2 |= BLM_COMBINATION_MODE;
        if (panel->backlight.active_low_pwm)
                ctl2 |= BLM_POLARITY_I965;
-       intel_de_write(dev_priv, BLC_PWM_CTL2(dev_priv), ctl2);
-       intel_de_posting_read(dev_priv, BLC_PWM_CTL2(dev_priv));
-       intel_de_write(dev_priv, BLC_PWM_CTL2(dev_priv), ctl2 | BLM_PWM_ENABLE);
+       intel_de_write(i915, BLC_PWM_CTL2(i915), ctl2);
+       intel_de_posting_read(i915, BLC_PWM_CTL2(i915));
+       intel_de_write(i915, BLC_PWM_CTL2(i915), ctl2 | BLM_PWM_ENABLE);
 
        intel_backlight_set_pwm_level(conn_state, level);
 }
@@ -655,20 +646,20 @@ static void vlv_enable_backlight(const struct 
intel_crtc_state *crtc_state,
                                 const struct drm_connector_state *conn_state, 
u32 level)
 {
        struct intel_connector *connector = 
to_intel_connector(conn_state->connector);
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        struct intel_panel *panel = &connector->panel;
        enum pipe pipe = to_intel_crtc(crtc_state->uapi.crtc)->pipe;
        u32 ctl, ctl2;
 
-       ctl2 = intel_de_read(dev_priv, VLV_BLC_PWM_CTL2(pipe));
+       ctl2 = intel_de_read(i915, VLV_BLC_PWM_CTL2(pipe));
        if (ctl2 & BLM_PWM_ENABLE) {
-               drm_dbg_kms(&dev_priv->drm, "backlight already enabled\n");
+               drm_dbg_kms(&i915->drm, "backlight already enabled\n");
                ctl2 &= ~BLM_PWM_ENABLE;
-               intel_de_write(dev_priv, VLV_BLC_PWM_CTL2(pipe), ctl2);
+               intel_de_write(i915, VLV_BLC_PWM_CTL2(pipe), ctl2);
        }
 
        ctl = panel->backlight.pwm_level_max << 16;
-       intel_de_write(dev_priv, VLV_BLC_PWM_CTL(pipe), ctl);
+       intel_de_write(i915, VLV_BLC_PWM_CTL(pipe), ctl);
 
        /* XXX: combine this into above write? */
        intel_backlight_set_pwm_level(conn_state, level);
@@ -676,50 +667,45 @@ static void vlv_enable_backlight(const struct 
intel_crtc_state *crtc_state,
        ctl2 = 0;
        if (panel->backlight.active_low_pwm)
                ctl2 |= BLM_POLARITY_I965;
-       intel_de_write(dev_priv, VLV_BLC_PWM_CTL2(pipe), ctl2);
-       intel_de_posting_read(dev_priv, VLV_BLC_PWM_CTL2(pipe));
-       intel_de_write(dev_priv, VLV_BLC_PWM_CTL2(pipe),
-                      ctl2 | BLM_PWM_ENABLE);
+       intel_de_write(i915, VLV_BLC_PWM_CTL2(pipe), ctl2);
+       intel_de_posting_read(i915, VLV_BLC_PWM_CTL2(pipe));
+       intel_de_write(i915, VLV_BLC_PWM_CTL2(pipe), ctl2 | BLM_PWM_ENABLE);
 }
 
 static void bxt_enable_backlight(const struct intel_crtc_state *crtc_state,
                                 const struct drm_connector_state *conn_state, 
u32 level)
 {
        struct intel_connector *connector = 
to_intel_connector(conn_state->connector);
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        struct intel_panel *panel = &connector->panel;
        enum pipe pipe = to_intel_crtc(crtc_state->uapi.crtc)->pipe;
        u32 pwm_ctl, val;
 
        /* Controller 1 uses the utility pin. */
        if (panel->backlight.controller == 1) {
-               val = intel_de_read(dev_priv, UTIL_PIN_CTL);
+               val = intel_de_read(i915, UTIL_PIN_CTL);
                if (val & UTIL_PIN_ENABLE) {
-                       drm_dbg_kms(&dev_priv->drm,
-                                   "util pin already enabled\n");
+                       drm_dbg_kms(&i915->drm, "util pin already enabled\n");
                        val &= ~UTIL_PIN_ENABLE;
-                       intel_de_write(dev_priv, UTIL_PIN_CTL, val);
+                       intel_de_write(i915, UTIL_PIN_CTL, val);
                }
 
                val = 0;
                if (panel->backlight.util_pin_active_low)
                        val |= UTIL_PIN_POLARITY;
-               intel_de_write(dev_priv, UTIL_PIN_CTL,
+               intel_de_write(i915, UTIL_PIN_CTL,
                               val | UTIL_PIN_PIPE(pipe) | UTIL_PIN_MODE_PWM | 
UTIL_PIN_ENABLE);
        }
 
-       pwm_ctl = intel_de_read(dev_priv,
-                               BXT_BLC_PWM_CTL(panel->backlight.controller));
+       pwm_ctl = intel_de_read(i915, 
BXT_BLC_PWM_CTL(panel->backlight.controller));
        if (pwm_ctl & BXT_BLC_PWM_ENABLE) {
-               drm_dbg_kms(&dev_priv->drm, "backlight already enabled\n");
+               drm_dbg_kms(&i915->drm, "backlight already enabled\n");
                pwm_ctl &= ~BXT_BLC_PWM_ENABLE;
-               intel_de_write(dev_priv,
-                              BXT_BLC_PWM_CTL(panel->backlight.controller),
+               intel_de_write(i915, 
BXT_BLC_PWM_CTL(panel->backlight.controller),
                               pwm_ctl);
        }
 
-       intel_de_write(dev_priv,
-                      BXT_BLC_PWM_FREQ(panel->backlight.controller),
+       intel_de_write(i915, BXT_BLC_PWM_FREQ(panel->backlight.controller),
                       panel->backlight.pwm_level_max);
 
        intel_backlight_set_pwm_level(conn_state, level);
@@ -728,11 +714,9 @@ static void bxt_enable_backlight(const struct 
intel_crtc_state *crtc_state,
        if (panel->backlight.active_low_pwm)
                pwm_ctl |= BXT_BLC_PWM_POLARITY;
 
-       intel_de_write(dev_priv, BXT_BLC_PWM_CTL(panel->backlight.controller),
-                      pwm_ctl);
-       intel_de_posting_read(dev_priv,
-                             BXT_BLC_PWM_CTL(panel->backlight.controller));
-       intel_de_write(dev_priv, BXT_BLC_PWM_CTL(panel->backlight.controller),
+       intel_de_write(i915, BXT_BLC_PWM_CTL(panel->backlight.controller), 
pwm_ctl);
+       intel_de_posting_read(i915, 
BXT_BLC_PWM_CTL(panel->backlight.controller));
+       intel_de_write(i915, BXT_BLC_PWM_CTL(panel->backlight.controller),
                       pwm_ctl | BXT_BLC_PWM_ENABLE);
 }
 
@@ -740,22 +724,19 @@ static void cnp_enable_backlight(const struct 
intel_crtc_state *crtc_state,
                                 const struct drm_connector_state *conn_state, 
u32 level)
 {
        struct intel_connector *connector = 
to_intel_connector(conn_state->connector);
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        struct intel_panel *panel = &connector->panel;
        u32 pwm_ctl;
 
-       pwm_ctl = intel_de_read(dev_priv,
-                               BXT_BLC_PWM_CTL(panel->backlight.controller));
+       pwm_ctl = intel_de_read(i915, 
BXT_BLC_PWM_CTL(panel->backlight.controller));
        if (pwm_ctl & BXT_BLC_PWM_ENABLE) {
-               drm_dbg_kms(&dev_priv->drm, "backlight already enabled\n");
+               drm_dbg_kms(&i915->drm, "backlight already enabled\n");
                pwm_ctl &= ~BXT_BLC_PWM_ENABLE;
-               intel_de_write(dev_priv,
-                              BXT_BLC_PWM_CTL(panel->backlight.controller),
+               intel_de_write(i915, 
BXT_BLC_PWM_CTL(panel->backlight.controller),
                               pwm_ctl);
        }
 
-       intel_de_write(dev_priv,
-                      BXT_BLC_PWM_FREQ(panel->backlight.controller),
+       intel_de_write(i915, BXT_BLC_PWM_FREQ(panel->backlight.controller),
                       panel->backlight.pwm_level_max);
 
        intel_backlight_set_pwm_level(conn_state, level);
@@ -764,11 +745,9 @@ static void cnp_enable_backlight(const struct 
intel_crtc_state *crtc_state,
        if (panel->backlight.active_low_pwm)
                pwm_ctl |= BXT_BLC_PWM_POLARITY;
 
-       intel_de_write(dev_priv, BXT_BLC_PWM_CTL(panel->backlight.controller),
-                      pwm_ctl);
-       intel_de_posting_read(dev_priv,
-                             BXT_BLC_PWM_CTL(panel->backlight.controller));
-       intel_de_write(dev_priv, BXT_BLC_PWM_CTL(panel->backlight.controller),
+       intel_de_write(i915, BXT_BLC_PWM_CTL(panel->backlight.controller), 
pwm_ctl);
+       intel_de_posting_read(i915, 
BXT_BLC_PWM_CTL(panel->backlight.controller));
+       intel_de_write(i915, BXT_BLC_PWM_CTL(panel->backlight.controller),
                       pwm_ctl | BXT_BLC_PWM_ENABLE);
 }
 
@@ -810,37 +789,37 @@ void intel_backlight_enable(const struct intel_crtc_state 
*crtc_state,
                            const struct drm_connector_state *conn_state)
 {
        struct intel_connector *connector = 
to_intel_connector(conn_state->connector);
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        struct intel_panel *panel = &connector->panel;
        enum pipe pipe = to_intel_crtc(crtc_state->uapi.crtc)->pipe;
 
        if (!panel->backlight.present)
                return;
 
-       drm_dbg_kms(&dev_priv->drm, "pipe %c\n", pipe_name(pipe));
+       drm_dbg_kms(&i915->drm, "pipe %c\n", pipe_name(pipe));
 
-       mutex_lock(&dev_priv->display.backlight.lock);
+       mutex_lock(&i915->display.backlight.lock);
 
        __intel_backlight_enable(crtc_state, conn_state);
 
-       mutex_unlock(&dev_priv->display.backlight.lock);
+       mutex_unlock(&i915->display.backlight.lock);
 }
 
 #if IS_ENABLED(CONFIG_BACKLIGHT_CLASS_DEVICE)
 static u32 intel_panel_get_backlight(struct intel_connector *connector)
 {
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        struct intel_panel *panel = &connector->panel;
        u32 val = 0;
 
-       mutex_lock(&dev_priv->display.backlight.lock);
+       mutex_lock(&i915->display.backlight.lock);
 
        if (panel->backlight.enabled)
                val = panel->backlight.funcs->get(connector, 
intel_connector_get_pipe(connector));
 
-       mutex_unlock(&dev_priv->display.backlight.lock);
+       mutex_unlock(&i915->display.backlight.lock);
 
-       drm_dbg_kms(&dev_priv->drm, "get backlight PWM = %d\n", val);
+       drm_dbg_kms(&i915->drm, "get backlight PWM = %d\n", val);
        return val;
 }
 
@@ -859,16 +838,16 @@ static void intel_panel_set_backlight(const struct 
drm_connector_state *conn_sta
                                      u32 user_level, u32 user_max)
 {
        struct intel_connector *connector = 
to_intel_connector(conn_state->connector);
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        struct intel_panel *panel = &connector->panel;
        u32 hw_level;
 
        if (!panel->backlight.present)
                return;
 
-       mutex_lock(&dev_priv->display.backlight.lock);
+       mutex_lock(&i915->display.backlight.lock);
 
-       drm_WARN_ON(&dev_priv->drm, panel->backlight.max == 0);
+       drm_WARN_ON(&i915->drm, panel->backlight.max == 0);
 
        hw_level = scale_user_to_hw(connector, user_level, user_max);
        panel->backlight.level = hw_level;
@@ -876,7 +855,7 @@ static void intel_panel_set_backlight(const struct 
drm_connector_state *conn_sta
        if (panel->backlight.enabled)
                intel_panel_actually_set_backlight(conn_state, hw_level);
 
-       mutex_unlock(&dev_priv->display.backlight.lock);
+       mutex_unlock(&i915->display.backlight.lock);
 }
 
 static int intel_backlight_device_update_status(struct backlight_device *bd)
@@ -915,11 +894,11 @@ static int intel_backlight_device_get_brightness(struct 
backlight_device *bd)
 {
        struct intel_connector *connector = bl_get_data(bd);
        struct drm_device *dev = connector->base.dev;
-       struct drm_i915_private *dev_priv = to_i915(dev);
+       struct drm_i915_private *i915 = to_i915(dev);
        intel_wakeref_t wakeref;
        int ret = 0;
 
-       with_intel_runtime_pm(&dev_priv->runtime_pm, wakeref) {
+       with_intel_runtime_pm(&i915->runtime_pm, wakeref) {
                u32 hw_level;
 
                drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
@@ -1038,9 +1017,9 @@ void intel_backlight_device_unregister(struct 
intel_connector *connector)
  */
 static u32 cnp_hz_to_pwm(struct intel_connector *connector, u32 pwm_freq_hz)
 {
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
 
-       return DIV_ROUND_CLOSEST(KHz(RUNTIME_INFO(dev_priv)->rawclk_freq),
+       return DIV_ROUND_CLOSEST(KHz(RUNTIME_INFO(i915)->rawclk_freq),
                                 pwm_freq_hz);
 }
 
@@ -1077,7 +1056,7 @@ static u32 spt_hz_to_pwm(struct intel_connector 
*connector, u32 pwm_freq_hz)
  */
 static u32 lpt_hz_to_pwm(struct intel_connector *connector, u32 pwm_freq_hz)
 {
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        struct intel_panel *panel = &connector->panel;
        u32 mul, clock;
 
@@ -1086,7 +1065,7 @@ static u32 lpt_hz_to_pwm(struct intel_connector 
*connector, u32 pwm_freq_hz)
        else
                mul = 128;
 
-       if (HAS_PCH_LPT_H(dev_priv))
+       if (HAS_PCH_LPT_H(i915))
                clock = MHz(135); /* LPT:H */
        else
                clock = MHz(24); /* LPT:LP */
@@ -1100,9 +1079,9 @@ static u32 lpt_hz_to_pwm(struct intel_connector 
*connector, u32 pwm_freq_hz)
  */
 static u32 pch_hz_to_pwm(struct intel_connector *connector, u32 pwm_freq_hz)
 {
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
 
-       return DIV_ROUND_CLOSEST(KHz(RUNTIME_INFO(dev_priv)->rawclk_freq),
+       return DIV_ROUND_CLOSEST(KHz(RUNTIME_INFO(i915)->rawclk_freq),
                                 pwm_freq_hz * 128);
 }
 
@@ -1116,13 +1095,13 @@ static u32 pch_hz_to_pwm(struct intel_connector 
*connector, u32 pwm_freq_hz)
  */
 static u32 i9xx_hz_to_pwm(struct intel_connector *connector, u32 pwm_freq_hz)
 {
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        int clock;
 
-       if (IS_PINEVIEW(dev_priv))
-               clock = KHz(RUNTIME_INFO(dev_priv)->rawclk_freq);
+       if (IS_PINEVIEW(i915))
+               clock = KHz(RUNTIME_INFO(i915)->rawclk_freq);
        else
-               clock = KHz(dev_priv->display.cdclk.hw.cdclk);
+               clock = KHz(i915->display.cdclk.hw.cdclk);
 
        return DIV_ROUND_CLOSEST(clock, pwm_freq_hz * 32);
 }
@@ -1134,13 +1113,13 @@ static u32 i9xx_hz_to_pwm(struct intel_connector 
*connector, u32 pwm_freq_hz)
  */
 static u32 i965_hz_to_pwm(struct intel_connector *connector, u32 pwm_freq_hz)
 {
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        int clock;
 
-       if (IS_G4X(dev_priv))
-               clock = KHz(RUNTIME_INFO(dev_priv)->rawclk_freq);
+       if (IS_G4X(i915))
+               clock = KHz(RUNTIME_INFO(i915)->rawclk_freq);
        else
-               clock = KHz(dev_priv->display.cdclk.hw.cdclk);
+               clock = KHz(i915->display.cdclk.hw.cdclk);
 
        return DIV_ROUND_CLOSEST(clock, pwm_freq_hz * 128);
 }
@@ -1152,17 +1131,17 @@ static u32 i965_hz_to_pwm(struct intel_connector 
*connector, u32 pwm_freq_hz)
  */
 static u32 vlv_hz_to_pwm(struct intel_connector *connector, u32 pwm_freq_hz)
 {
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        int mul, clock;
 
-       if ((intel_de_read(dev_priv, CBR1_VLV) & CBR_PWM_CLOCK_MUX_SELECT) == 
0) {
-               if (IS_CHERRYVIEW(dev_priv))
+       if ((intel_de_read(i915, CBR1_VLV) & CBR_PWM_CLOCK_MUX_SELECT) == 0) {
+               if (IS_CHERRYVIEW(i915))
                        clock = KHz(19200);
                else
                        clock = MHz(25);
                mul = 16;
        } else {
-               clock = KHz(RUNTIME_INFO(dev_priv)->rawclk_freq);
+               clock = KHz(RUNTIME_INFO(i915)->rawclk_freq);
                mul = 128;
        }
 
@@ -1171,16 +1150,16 @@ static u32 vlv_hz_to_pwm(struct intel_connector 
*connector, u32 pwm_freq_hz)
 
 static u16 get_vbt_pwm_freq(struct intel_connector *connector)
 {
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        u16 pwm_freq_hz = connector->panel.vbt.backlight.pwm_freq_hz;
 
        if (pwm_freq_hz) {
-               drm_dbg_kms(&dev_priv->drm,
+               drm_dbg_kms(&i915->drm,
                            "VBT defined backlight frequency %u Hz\n",
                            pwm_freq_hz);
        } else {
                pwm_freq_hz = 200;
-               drm_dbg_kms(&dev_priv->drm,
+               drm_dbg_kms(&i915->drm,
                            "default backlight frequency %u Hz\n",
                            pwm_freq_hz);
        }
@@ -1190,20 +1169,20 @@ static u16 get_vbt_pwm_freq(struct intel_connector 
*connector)
 
 static u32 get_backlight_max_vbt(struct intel_connector *connector)
 {
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        struct intel_panel *panel = &connector->panel;
        u16 pwm_freq_hz = get_vbt_pwm_freq(connector);
        u32 pwm;
 
        if (!panel->backlight.pwm_funcs->hz_to_pwm) {
-               drm_dbg_kms(&dev_priv->drm,
+               drm_dbg_kms(&i915->drm,
                            "backlight frequency conversion not supported\n");
                return 0;
        }
 
        pwm = panel->backlight.pwm_funcs->hz_to_pwm(connector, pwm_freq_hz);
        if (!pwm) {
-               drm_dbg_kms(&dev_priv->drm,
+               drm_dbg_kms(&i915->drm,
                            "backlight frequency conversion failed\n");
                return 0;
        }
@@ -1216,11 +1195,11 @@ static u32 get_backlight_max_vbt(struct intel_connector 
*connector)
  */
 static u32 get_backlight_min_vbt(struct intel_connector *connector)
 {
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        struct intel_panel *panel = &connector->panel;
        int min;
 
-       drm_WARN_ON(&dev_priv->drm, panel->backlight.pwm_level_max == 0);
+       drm_WARN_ON(&i915->drm, panel->backlight.pwm_level_max == 0);
 
        /*
         * XXX: If the vbt value is 255, it makes min equal to max, which leads
@@ -1231,7 +1210,7 @@ static u32 get_backlight_min_vbt(struct intel_connector 
*connector)
         */
        min = clamp_t(int, connector->panel.vbt.backlight.min_brightness, 0, 
64);
        if (min != connector->panel.vbt.backlight.min_brightness) {
-               drm_dbg_kms(&dev_priv->drm,
+               drm_dbg_kms(&i915->drm,
                            "clamping VBT min backlight %d/255 to %d/255\n",
                            connector->panel.vbt.backlight.min_brightness, min);
        }
@@ -1242,24 +1221,24 @@ static u32 get_backlight_min_vbt(struct intel_connector 
*connector)
 
 static int lpt_setup_backlight(struct intel_connector *connector, enum pipe 
unused)
 {
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        struct intel_panel *panel = &connector->panel;
        u32 cpu_ctl2, pch_ctl1, pch_ctl2, val;
        bool alt, cpu_mode;
 
-       if (HAS_PCH_LPT(dev_priv))
-               alt = intel_de_read(dev_priv, SOUTH_CHICKEN2) & 
LPT_PWM_GRANULARITY;
+       if (HAS_PCH_LPT(i915))
+               alt = intel_de_read(i915, SOUTH_CHICKEN2) & LPT_PWM_GRANULARITY;
        else
-               alt = intel_de_read(dev_priv, SOUTH_CHICKEN1) & 
SPT_PWM_GRANULARITY;
+               alt = intel_de_read(i915, SOUTH_CHICKEN1) & SPT_PWM_GRANULARITY;
        panel->backlight.alternate_pwm_increment = alt;
 
-       pch_ctl1 = intel_de_read(dev_priv, BLC_PWM_PCH_CTL1);
+       pch_ctl1 = intel_de_read(i915, BLC_PWM_PCH_CTL1);
        panel->backlight.active_low_pwm = pch_ctl1 & BLM_PCH_POLARITY;
 
-       pch_ctl2 = intel_de_read(dev_priv, BLC_PWM_PCH_CTL2);
+       pch_ctl2 = intel_de_read(i915, BLC_PWM_PCH_CTL2);
        panel->backlight.pwm_level_max = pch_ctl2 >> 16;
 
-       cpu_ctl2 = intel_de_read(dev_priv, BLC_PWM_CPU_CTL2);
+       cpu_ctl2 = intel_de_read(i915, BLC_PWM_CPU_CTL2);
 
        if (!panel->backlight.pwm_level_max)
                panel->backlight.pwm_level_max = 
get_backlight_max_vbt(connector);
@@ -1271,22 +1250,22 @@ static int lpt_setup_backlight(struct intel_connector 
*connector, enum pipe unus
 
        panel->backlight.pwm_enabled = pch_ctl1 & BLM_PCH_PWM_ENABLE;
 
-       cpu_mode = panel->backlight.pwm_enabled && HAS_PCH_LPT(dev_priv) &&
+       cpu_mode = panel->backlight.pwm_enabled && HAS_PCH_LPT(i915) &&
                   !(pch_ctl1 & BLM_PCH_OVERRIDE_ENABLE) &&
                   (cpu_ctl2 & BLM_PWM_ENABLE);
 
        if (cpu_mode) {
                val = pch_get_backlight(connector, unused);
 
-               drm_dbg_kms(&dev_priv->drm,
+               drm_dbg_kms(&i915->drm,
                            "CPU backlight register was enabled, switching to 
PCH override\n");
 
                /* Write converted CPU PWM value to PCH override register */
                lpt_set_backlight(connector->base.state, val);
-               intel_de_write(dev_priv, BLC_PWM_PCH_CTL1,
+               intel_de_write(i915, BLC_PWM_PCH_CTL1,
                               pch_ctl1 | BLM_PCH_OVERRIDE_ENABLE);
 
-               intel_de_write(dev_priv, BLC_PWM_CPU_CTL2,
+               intel_de_write(i915, BLC_PWM_CPU_CTL2,
                               cpu_ctl2 & ~BLM_PWM_ENABLE);
        }
 
@@ -1295,14 +1274,14 @@ static int lpt_setup_backlight(struct intel_connector 
*connector, enum pipe unus
 
 static int pch_setup_backlight(struct intel_connector *connector, enum pipe 
unused)
 {
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        struct intel_panel *panel = &connector->panel;
        u32 cpu_ctl2, pch_ctl1, pch_ctl2;
 
-       pch_ctl1 = intel_de_read(dev_priv, BLC_PWM_PCH_CTL1);
+       pch_ctl1 = intel_de_read(i915, BLC_PWM_PCH_CTL1);
        panel->backlight.active_low_pwm = pch_ctl1 & BLM_PCH_POLARITY;
 
-       pch_ctl2 = intel_de_read(dev_priv, BLC_PWM_PCH_CTL2);
+       pch_ctl2 = intel_de_read(i915, BLC_PWM_PCH_CTL2);
        panel->backlight.pwm_level_max = pch_ctl2 >> 16;
 
        if (!panel->backlight.pwm_level_max)
@@ -1313,7 +1292,7 @@ static int pch_setup_backlight(struct intel_connector 
*connector, enum pipe unus
 
        panel->backlight.pwm_level_min = get_backlight_min_vbt(connector);
 
-       cpu_ctl2 = intel_de_read(dev_priv, BLC_PWM_CPU_CTL2);
+       cpu_ctl2 = intel_de_read(i915, BLC_PWM_CPU_CTL2);
        panel->backlight.pwm_enabled = (cpu_ctl2 & BLM_PWM_ENABLE) &&
                (pch_ctl1 & BLM_PCH_PWM_ENABLE);
 
@@ -1322,16 +1301,16 @@ static int pch_setup_backlight(struct intel_connector 
*connector, enum pipe unus
 
 static int i9xx_setup_backlight(struct intel_connector *connector, enum pipe 
unused)
 {
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        struct intel_panel *panel = &connector->panel;
        u32 ctl, val;
 
-       ctl = intel_de_read(dev_priv, BLC_PWM_CTL(dev_priv));
+       ctl = intel_de_read(i915, BLC_PWM_CTL(i915));
 
-       if (DISPLAY_VER(dev_priv) == 2 || IS_I915GM(dev_priv) || 
IS_I945GM(dev_priv))
+       if (DISPLAY_VER(i915) == 2 || IS_I915GM(i915) || IS_I945GM(i915))
                panel->backlight.combination_mode = ctl & BLM_LEGACY_MODE;
 
-       if (IS_PINEVIEW(dev_priv))
+       if (IS_PINEVIEW(i915))
                panel->backlight.active_low_pwm = ctl & BLM_POLARITY_PNV;
 
        panel->backlight.pwm_level_max = ctl >> 17;
@@ -1360,15 +1339,15 @@ static int i9xx_setup_backlight(struct intel_connector 
*connector, enum pipe unu
 
 static int i965_setup_backlight(struct intel_connector *connector, enum pipe 
unused)
 {
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        struct intel_panel *panel = &connector->panel;
        u32 ctl, ctl2;
 
-       ctl2 = intel_de_read(dev_priv, BLC_PWM_CTL2(dev_priv));
+       ctl2 = intel_de_read(i915, BLC_PWM_CTL2(i915));
        panel->backlight.combination_mode = ctl2 & BLM_COMBINATION_MODE;
        panel->backlight.active_low_pwm = ctl2 & BLM_POLARITY_I965;
 
-       ctl = intel_de_read(dev_priv, BLC_PWM_CTL(dev_priv));
+       ctl = intel_de_read(i915, BLC_PWM_CTL(i915));
        panel->backlight.pwm_level_max = ctl >> 16;
 
        if (!panel->backlight.pwm_level_max)
@@ -1389,17 +1368,17 @@ static int i965_setup_backlight(struct intel_connector 
*connector, enum pipe unu
 
 static int vlv_setup_backlight(struct intel_connector *connector, enum pipe 
pipe)
 {
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        struct intel_panel *panel = &connector->panel;
        u32 ctl, ctl2;
 
-       if (drm_WARN_ON(&dev_priv->drm, pipe != PIPE_A && pipe != PIPE_B))
+       if (drm_WARN_ON(&i915->drm, pipe != PIPE_A && pipe != PIPE_B))
                return -ENODEV;
 
-       ctl2 = intel_de_read(dev_priv, VLV_BLC_PWM_CTL2(pipe));
+       ctl2 = intel_de_read(i915, VLV_BLC_PWM_CTL2(pipe));
        panel->backlight.active_low_pwm = ctl2 & BLM_POLARITY_I965;
 
-       ctl = intel_de_read(dev_priv, VLV_BLC_PWM_CTL(pipe));
+       ctl = intel_de_read(i915, VLV_BLC_PWM_CTL(pipe));
        panel->backlight.pwm_level_max = ctl >> 16;
 
        if (!panel->backlight.pwm_level_max)
@@ -1418,25 +1397,25 @@ static int vlv_setup_backlight(struct intel_connector 
*connector, enum pipe pipe
 static int
 bxt_setup_backlight(struct intel_connector *connector, enum pipe unused)
 {
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        struct intel_panel *panel = &connector->panel;
        u32 pwm_ctl, val;
 
        panel->backlight.controller = connector->panel.vbt.backlight.controller;
 
-       pwm_ctl = intel_de_read(dev_priv,
+       pwm_ctl = intel_de_read(i915,
                                BXT_BLC_PWM_CTL(panel->backlight.controller));
 
        /* Controller 1 uses the utility pin. */
        if (panel->backlight.controller == 1) {
-               val = intel_de_read(dev_priv, UTIL_PIN_CTL);
+               val = intel_de_read(i915, UTIL_PIN_CTL);
                panel->backlight.util_pin_active_low =
                                        val & UTIL_PIN_POLARITY;
        }
 
        panel->backlight.active_low_pwm = pwm_ctl & BXT_BLC_PWM_POLARITY;
        panel->backlight.pwm_level_max =
-               intel_de_read(dev_priv, 
BXT_BLC_PWM_FREQ(panel->backlight.controller));
+               intel_de_read(i915, 
BXT_BLC_PWM_FREQ(panel->backlight.controller));
 
        if (!panel->backlight.pwm_level_max)
                panel->backlight.pwm_level_max = 
get_backlight_max_vbt(connector);
@@ -1454,7 +1433,7 @@ bxt_setup_backlight(struct intel_connector *connector, 
enum pipe unused)
 static int
 cnp_setup_backlight(struct intel_connector *connector, enum pipe unused)
 {
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        struct intel_panel *panel = &connector->panel;
        u32 pwm_ctl;
 
@@ -1465,12 +1444,12 @@ cnp_setup_backlight(struct intel_connector *connector, 
enum pipe unused)
         */
        panel->backlight.controller = 0;
 
-       pwm_ctl = intel_de_read(dev_priv,
+       pwm_ctl = intel_de_read(i915,
                                BXT_BLC_PWM_CTL(panel->backlight.controller));
 
        panel->backlight.active_low_pwm = pwm_ctl & BXT_BLC_PWM_POLARITY;
        panel->backlight.pwm_level_max =
-               intel_de_read(dev_priv, 
BXT_BLC_PWM_FREQ(panel->backlight.controller));
+               intel_de_read(i915, 
BXT_BLC_PWM_FREQ(panel->backlight.controller));
 
        if (!panel->backlight.pwm_level_max)
                panel->backlight.pwm_level_max = 
get_backlight_max_vbt(connector);
@@ -1489,7 +1468,7 @@ static int ext_pwm_setup_backlight(struct intel_connector 
*connector,
                                   enum pipe pipe)
 {
        struct drm_device *dev = connector->base.dev;
-       struct drm_i915_private *dev_priv = to_i915(dev);
+       struct drm_i915_private *i915 = to_i915(dev);
        struct intel_panel *panel = &connector->panel;
        const char *desc;
        u32 level;
@@ -1504,7 +1483,7 @@ static int ext_pwm_setup_backlight(struct intel_connector 
*connector,
        }
 
        if (IS_ERR(panel->backlight.pwm)) {
-               drm_err(&dev_priv->drm, "Failed to get the %s PWM chip\n",
+               drm_err(&i915->drm, "Failed to get the %s PWM chip\n",
                        desc);
                panel->backlight.pwm = NULL;
                return -ENODEV;
@@ -1522,7 +1501,7 @@ static int ext_pwm_setup_backlight(struct intel_connector 
*connector,
                level = intel_backlight_invert_pwm_level(connector, level);
                panel->backlight.pwm_enabled = true;
 
-               drm_dbg_kms(&dev_priv->drm, "PWM already enabled at freq %ld, 
VBT freq %d, level %d\n",
+               drm_dbg_kms(&i915->drm, "PWM already enabled at freq %ld, VBT 
freq %d, level %d\n",
                            NSEC_PER_SEC / (unsigned 
long)panel->backlight.pwm_state.period,
                            get_vbt_pwm_freq(connector), level);
        } else {
@@ -1531,7 +1510,7 @@ static int ext_pwm_setup_backlight(struct intel_connector 
*connector,
                        NSEC_PER_SEC / get_vbt_pwm_freq(connector);
        }
 
-       drm_info(&dev_priv->drm, "Using %s PWM for LCD backlight control\n",
+       drm_info(&i915->drm, "Using %s PWM for LCD backlight control\n",
                 desc);
        return 0;
 }
@@ -1594,47 +1573,47 @@ void intel_backlight_update(struct intel_atomic_state 
*state,
                            const struct drm_connector_state *conn_state)
 {
        struct intel_connector *connector = 
to_intel_connector(conn_state->connector);
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        struct intel_panel *panel = &connector->panel;
 
        if (!panel->backlight.present)
                return;
 
-       mutex_lock(&dev_priv->display.backlight.lock);
+       mutex_lock(&i915->display.backlight.lock);
        if (!panel->backlight.enabled)
                __intel_backlight_enable(crtc_state, conn_state);
 
-       mutex_unlock(&dev_priv->display.backlight.lock);
+       mutex_unlock(&i915->display.backlight.lock);
 }
 
 int intel_backlight_setup(struct intel_connector *connector, enum pipe pipe)
 {
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
        struct intel_panel *panel = &connector->panel;
        int ret;
 
        if (!connector->panel.vbt.backlight.present) {
-               if (intel_has_quirk(dev_priv, QUIRK_BACKLIGHT_PRESENT)) {
-                       drm_dbg_kms(&dev_priv->drm,
+               if (intel_has_quirk(i915, QUIRK_BACKLIGHT_PRESENT)) {
+                       drm_dbg_kms(&i915->drm,
                                    "no backlight present per VBT, but present 
per quirk\n");
                } else {
-                       drm_dbg_kms(&dev_priv->drm,
+                       drm_dbg_kms(&i915->drm,
                                    "no backlight present per VBT\n");
                        return 0;
                }
        }
 
        /* ensure intel_panel has been initialized first */
-       if (drm_WARN_ON(&dev_priv->drm, !panel->backlight.funcs))
+       if (drm_WARN_ON(&i915->drm, !panel->backlight.funcs))
                return -ENODEV;
 
        /* set level and max in panel struct */
-       mutex_lock(&dev_priv->display.backlight.lock);
+       mutex_lock(&i915->display.backlight.lock);
        ret = panel->backlight.funcs->setup(connector, pipe);
-       mutex_unlock(&dev_priv->display.backlight.lock);
+       mutex_unlock(&i915->display.backlight.lock);
 
        if (ret) {
-               drm_dbg_kms(&dev_priv->drm,
+               drm_dbg_kms(&i915->drm,
                            "failed to setup backlight for connector %s\n",
                            connector->base.name);
                return ret;
@@ -1642,7 +1621,7 @@ int intel_backlight_setup(struct intel_connector 
*connector, enum pipe pipe)
 
        panel->backlight.present = true;
 
-       drm_dbg_kms(&dev_priv->drm,
+       drm_dbg_kms(&i915->drm,
                    "Connector %s backlight initialized, %s, brightness 
%u/%u\n",
                    connector->base.name,
                    str_enabled_disabled(panel->backlight.enabled),
@@ -1753,30 +1732,30 @@ void intel_backlight_init_funcs(struct intel_panel 
*panel)
 {
        struct intel_connector *connector =
                container_of(panel, struct intel_connector, panel);
-       struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
+       struct drm_i915_private *i915 = to_i915(connector->base.dev);
 
        if (connector->base.connector_type == DRM_MODE_CONNECTOR_DSI &&
            intel_dsi_dcs_init_backlight_funcs(connector) == 0)
                return;
 
-       if (IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv)) {
+       if (IS_GEMINILAKE(i915) || IS_BROXTON(i915)) {
                panel->backlight.pwm_funcs = &bxt_pwm_funcs;
-       } else if (INTEL_PCH_TYPE(dev_priv) >= PCH_CNP) {
+       } else if (INTEL_PCH_TYPE(i915) >= PCH_CNP) {
                panel->backlight.pwm_funcs = &cnp_pwm_funcs;
-       } else if (INTEL_PCH_TYPE(dev_priv) >= PCH_LPT) {
-               if (HAS_PCH_LPT(dev_priv))
+       } else if (INTEL_PCH_TYPE(i915) >= PCH_LPT) {
+               if (HAS_PCH_LPT(i915))
                        panel->backlight.pwm_funcs = &lpt_pwm_funcs;
                else
                        panel->backlight.pwm_funcs = &spt_pwm_funcs;
-       } else if (HAS_PCH_SPLIT(dev_priv)) {
+       } else if (HAS_PCH_SPLIT(i915)) {
                panel->backlight.pwm_funcs = &pch_pwm_funcs;
-       } else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
+       } else if (IS_VALLEYVIEW(i915) || IS_CHERRYVIEW(i915)) {
                if (connector->base.connector_type == DRM_MODE_CONNECTOR_DSI) {
                        panel->backlight.pwm_funcs = &ext_pwm_funcs;
                } else {
                        panel->backlight.pwm_funcs = &vlv_pwm_funcs;
                }
-       } else if (DISPLAY_VER(dev_priv) == 4) {
+       } else if (DISPLAY_VER(i915) == 4) {
                panel->backlight.pwm_funcs = &i965_pwm_funcs;
        } else {
                panel->backlight.pwm_funcs = &i9xx_pwm_funcs;
@@ -1786,7 +1765,7 @@ void intel_backlight_init_funcs(struct intel_panel *panel)
                if (intel_dp_aux_init_backlight_funcs(connector) == 0)
                        return;
 
-               if (!intel_has_quirk(dev_priv, 
QUIRK_NO_PPS_BACKLIGHT_POWER_HOOK))
+               if (!intel_has_quirk(i915, QUIRK_NO_PPS_BACKLIGHT_POWER_HOOK))
                        connector->panel.backlight.power = 
intel_pps_backlight_power;
        }
 
-- 
2.34.1

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