Going forward, struct intel_display will be the main display data
structure. Convert as much as possible of backlight code to use it.

There are some stragglers mainly around PCH checks.

Signed-off-by: Jani Nikula <jani.nik...@intel.com>
---
 .../gpu/drm/i915/display/intel_backlight.c    | 494 +++++++++---------
 1 file changed, 260 insertions(+), 234 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_backlight.c 
b/drivers/gpu/drm/i915/display/intel_backlight.c
index 7e6ce905bdaf..477b21af71a4 100644
--- a/drivers/gpu/drm/i915/display/intel_backlight.c
+++ b/drivers/gpu/drm/i915/display/intel_backlight.c
@@ -104,20 +104,20 @@ u32 intel_backlight_invert_pwm_level(struct 
intel_connector *connector, u32 val)
 void intel_backlight_set_pwm_level(const struct drm_connector_state 
*conn_state, u32 val)
 {
        struct intel_connector *connector = 
to_intel_connector(conn_state->connector);
-       struct drm_i915_private *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        struct intel_panel *panel = &connector->panel;
 
-       drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s] set backlight PWM = %d\n",
+       drm_dbg_kms(display->drm, "[CONNECTOR:%d:%s] set backlight PWM = %d\n",
                    connector->base.base.id, connector->base.name, val);
        panel->backlight.pwm_funcs->set(conn_state, val);
 }
 
 u32 intel_backlight_level_to_pwm(struct intel_connector *connector, u32 val)
 {
-       struct drm_i915_private *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        struct intel_panel *panel = &connector->panel;
 
-       drm_WARN_ON_ONCE(&i915->drm,
+       drm_WARN_ON_ONCE(display->drm,
                         panel->backlight.max == 0 || 
panel->backlight.pwm_level_max == 0);
 
        val = scale(val, panel->backlight.min, panel->backlight.max,
@@ -145,32 +145,33 @@ 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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
 
-       return intel_de_read(i915, BLC_PWM_PCH_CTL2) & 
BACKLIGHT_DUTY_CYCLE_MASK;
+       return intel_de_read(display, BLC_PWM_PCH_CTL2) & 
BACKLIGHT_DUTY_CYCLE_MASK;
 }
 
 static u32 pch_get_backlight(struct intel_connector *connector, enum pipe 
unused)
 {
-       struct drm_i915_private *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
 
-       return intel_de_read(i915, BLC_PWM_CPU_CTL) & BACKLIGHT_DUTY_CYCLE_MASK;
+       return intel_de_read(display, BLC_PWM_CPU_CTL) & 
BACKLIGHT_DUTY_CYCLE_MASK;
 }
 
 static u32 i9xx_get_backlight(struct intel_connector *connector, enum pipe 
unused)
 {
-       struct drm_i915_private *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        struct intel_panel *panel = &connector->panel;
        u32 val;
 
-       val = intel_de_read(i915, BLC_PWM_CTL) & BACKLIGHT_DUTY_CYCLE_MASK;
-       if (DISPLAY_VER(i915) < 4)
+       val = intel_de_read(display, BLC_PWM_CTL) & BACKLIGHT_DUTY_CYCLE_MASK;
+       if (DISPLAY_VER(display) < 4)
                val >>= 1;
 
        if (panel->backlight.combination_mode) {
+               struct pci_dev *pdev = to_pci_dev(display->drm->dev);
                u8 lbpc;
 
-               pci_read_config_byte(to_pci_dev(i915->drm.dev), LBPC, &lbpc);
+               pci_read_config_byte(pdev, LBPC, &lbpc);
                val *= lbpc;
        }
 
@@ -179,20 +180,20 @@ 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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
 
-       if (drm_WARN_ON(&i915->drm, pipe != PIPE_A && pipe != PIPE_B))
+       if (drm_WARN_ON(display->drm, pipe != PIPE_A && pipe != PIPE_B))
                return 0;
 
-       return intel_de_read(i915, VLV_BLC_PWM_CTL(pipe)) & 
BACKLIGHT_DUTY_CYCLE_MASK;
+       return intel_de_read(display, 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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        struct intel_panel *panel = &connector->panel;
 
-       return intel_de_read(i915, 
BXT_BLC_PWM_DUTY(panel->backlight.controller));
+       return intel_de_read(display, 
BXT_BLC_PWM_DUTY(panel->backlight.controller));
 }
 
 static u32 ext_pwm_get_backlight(struct intel_connector *connector, enum pipe 
unused)
@@ -207,69 +208,70 @@ 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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        u32 val;
 
-       val = intel_de_read(i915, BLC_PWM_PCH_CTL2) & 
~BACKLIGHT_DUTY_CYCLE_MASK;
-       intel_de_write(i915, BLC_PWM_PCH_CTL2, val | level);
+       val = intel_de_read(display, BLC_PWM_PCH_CTL2) & 
~BACKLIGHT_DUTY_CYCLE_MASK;
+       intel_de_write(display, 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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        u32 tmp;
 
-       tmp = intel_de_read(i915, BLC_PWM_CPU_CTL) & ~BACKLIGHT_DUTY_CYCLE_MASK;
-       intel_de_write(i915, BLC_PWM_CPU_CTL, tmp | level);
+       tmp = intel_de_read(display, BLC_PWM_CPU_CTL) & 
~BACKLIGHT_DUTY_CYCLE_MASK;
+       intel_de_write(display, 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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        struct intel_panel *panel = &connector->panel;
        u32 tmp, mask;
 
-       drm_WARN_ON(&i915->drm, panel->backlight.pwm_level_max == 0);
+       drm_WARN_ON(display->drm, panel->backlight.pwm_level_max == 0);
 
        if (panel->backlight.combination_mode) {
+               struct pci_dev *pdev = to_pci_dev(display->drm->dev);
                u8 lbpc;
 
                lbpc = level * 0xfe / panel->backlight.pwm_level_max + 1;
                level /= lbpc;
-               pci_write_config_byte(to_pci_dev(i915->drm.dev), LBPC, lbpc);
+               pci_write_config_byte(pdev, LBPC, lbpc);
        }
 
-       if (DISPLAY_VER(i915) == 4) {
+       if (DISPLAY_VER(display) == 4) {
                mask = BACKLIGHT_DUTY_CYCLE_MASK;
        } else {
                level <<= 1;
                mask = BACKLIGHT_DUTY_CYCLE_MASK_PNV;
        }
 
-       tmp = intel_de_read(i915, BLC_PWM_CTL) & ~mask;
-       intel_de_write(i915, BLC_PWM_CTL, tmp | level);
+       tmp = intel_de_read(display, BLC_PWM_CTL) & ~mask;
+       intel_de_write(display, BLC_PWM_CTL, 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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        enum pipe pipe = to_intel_crtc(conn_state->crtc)->pipe;
        u32 tmp;
 
-       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);
+       tmp = intel_de_read(display, VLV_BLC_PWM_CTL(pipe)) & 
~BACKLIGHT_DUTY_CYCLE_MASK;
+       intel_de_write(display, 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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        struct intel_panel *panel = &connector->panel;
 
-       intel_de_write(i915, BXT_BLC_PWM_DUTY(panel->backlight.controller), 
level);
+       intel_de_write(display, BXT_BLC_PWM_DUTY(panel->backlight.controller), 
level);
 }
 
 static void ext_pwm_set_backlight(const struct drm_connector_state 
*conn_state, u32 level)
@@ -284,10 +286,10 @@ static void
 intel_panel_actually_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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        struct intel_panel *panel = &connector->panel;
 
-       drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s] set backlight level = %d\n",
+       drm_dbg_kms(display->drm, "[CONNECTOR:%d:%s] set backlight level = 
%d\n",
                    connector->base.base.id, connector->base.name, level);
 
        panel->backlight.funcs->set(conn_state, level);
@@ -300,7 +302,7 @@ 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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        struct intel_panel *panel = &connector->panel;
        u32 hw_level;
 
@@ -313,9 +315,9 @@ void intel_backlight_set_acpi(const struct 
drm_connector_state *conn_state,
        if (!panel->backlight.present || !conn_state->crtc)
                return;
 
-       mutex_lock(&i915->display.backlight.lock);
+       mutex_lock(&display->backlight.lock);
 
-       drm_WARN_ON(&i915->drm, panel->backlight.max == 0);
+       drm_WARN_ON(display->drm, panel->backlight.max == 0);
 
        hw_level = clamp_user_to_hw(connector, user_level, user_max);
        panel->backlight.level = hw_level;
@@ -329,13 +331,13 @@ 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(&i915->display.backlight.lock);
+       mutex_unlock(&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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        u32 tmp;
 
        intel_backlight_set_pwm_level(old_conn_state, level);
@@ -348,26 +350,26 @@ 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(i915, BLC_PWM_CPU_CTL2);
+       tmp = intel_de_read(display, BLC_PWM_CPU_CTL2);
        if (tmp & BLM_PWM_ENABLE) {
-               drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s] CPU backlight was 
enabled, disabling\n",
+               drm_dbg_kms(display->drm, "[CONNECTOR:%d:%s] CPU backlight was 
enabled, disabling\n",
                            connector->base.base.id, connector->base.name);
-               intel_de_write(i915, BLC_PWM_CPU_CTL2, tmp & ~BLM_PWM_ENABLE);
+               intel_de_write(display, BLC_PWM_CPU_CTL2, tmp & 
~BLM_PWM_ENABLE);
        }
 
-       intel_de_rmw(i915, BLC_PWM_PCH_CTL1, BLM_PCH_PWM_ENABLE, 0);
+       intel_de_rmw(display, BLC_PWM_PCH_CTL1, BLM_PCH_PWM_ENABLE, 0);
 }
 
 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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
 
        intel_backlight_set_pwm_level(old_conn_state, val);
 
-       intel_de_rmw(i915, BLC_PWM_CPU_CTL2, BLM_PWM_ENABLE, 0);
+       intel_de_rmw(display, BLC_PWM_CPU_CTL2, BLM_PWM_ENABLE, 0);
 
-       intel_de_rmw(i915, BLC_PWM_PCH_CTL1, BLM_PCH_PWM_ENABLE, 0);
+       intel_de_rmw(display, BLC_PWM_PCH_CTL1, BLM_PCH_PWM_ENABLE, 0);
 }
 
 static void i9xx_disable_backlight(const struct drm_connector_state 
*old_conn_state, u32 val)
@@ -377,48 +379,49 @@ 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 *i915 = to_i915(old_conn_state->connector->dev);
+       struct intel_connector *connector = 
to_intel_connector(old_conn_state->connector);
+       struct intel_display *display = to_intel_display(connector);
 
        intel_backlight_set_pwm_level(old_conn_state, val);
 
-       intel_de_rmw(i915, BLC_PWM_CTL2, BLM_PWM_ENABLE, 0);
+       intel_de_rmw(display, BLC_PWM_CTL2, BLM_PWM_ENABLE, 0);
 }
 
 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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        enum pipe pipe = to_intel_crtc(old_conn_state->crtc)->pipe;
 
        intel_backlight_set_pwm_level(old_conn_state, val);
 
-       intel_de_rmw(i915, VLV_BLC_PWM_CTL2(pipe), BLM_PWM_ENABLE, 0);
+       intel_de_rmw(display, VLV_BLC_PWM_CTL2(pipe), BLM_PWM_ENABLE, 0);
 }
 
 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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        struct intel_panel *panel = &connector->panel;
 
        intel_backlight_set_pwm_level(old_conn_state, val);
 
-       intel_de_rmw(i915, BXT_BLC_PWM_CTL(panel->backlight.controller),
+       intel_de_rmw(display, BXT_BLC_PWM_CTL(panel->backlight.controller),
                     BXT_BLC_PWM_ENABLE, 0);
 
        if (panel->backlight.controller == 1)
-               intel_de_rmw(i915, UTIL_PIN_CTL, UTIL_PIN_ENABLE, 0);
+               intel_de_rmw(display, UTIL_PIN_CTL, UTIL_PIN_ENABLE, 0);
 }
 
 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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        struct intel_panel *panel = &connector->panel;
 
        intel_backlight_set_pwm_level(old_conn_state, val);
 
-       intel_de_rmw(i915, BXT_BLC_PWM_CTL(panel->backlight.controller),
+       intel_de_rmw(display, BXT_BLC_PWM_CTL(panel->backlight.controller),
                     BXT_BLC_PWM_ENABLE, 0);
 }
 
@@ -436,7 +439,7 @@ 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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        struct intel_panel *panel = &connector->panel;
 
        if (!panel->backlight.present)
@@ -448,49 +451,51 @@ 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 (i915->drm.switch_power_state == DRM_SWITCH_POWER_CHANGING) {
-               drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s] Skipping backlight 
disable on vga switch\n",
+       if (display->drm->switch_power_state == DRM_SWITCH_POWER_CHANGING) {
+               drm_dbg_kms(display->drm, "[CONNECTOR:%d:%s] Skipping backlight 
disable on vga switch\n",
                            connector->base.base.id, connector->base.name);
                return;
        }
 
-       mutex_lock(&i915->display.backlight.lock);
+       mutex_lock(&display->backlight.lock);
 
        if (panel->backlight.device)
                panel->backlight.device->props.power = BACKLIGHT_POWER_OFF;
        panel->backlight.enabled = false;
        panel->backlight.funcs->disable(old_conn_state, 0);
 
-       mutex_unlock(&i915->display.backlight.lock);
+       mutex_unlock(&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 intel_display *display = to_intel_display(connector);
        struct drm_i915_private *i915 = to_i915(connector->base.dev);
        struct intel_panel *panel = &connector->panel;
        u32 pch_ctl1, pch_ctl2;
 
-       pch_ctl1 = intel_de_read(i915, BLC_PWM_PCH_CTL1);
+       pch_ctl1 = intel_de_read(display, BLC_PWM_PCH_CTL1);
        if (pch_ctl1 & BLM_PCH_PWM_ENABLE) {
-               drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s] PCH backlight 
already enabled\n",
+               drm_dbg_kms(display->drm,
+                           "[CONNECTOR:%d:%s] PCH backlight already enabled\n",
                            connector->base.base.id, connector->base.name);
                pch_ctl1 &= ~BLM_PCH_PWM_ENABLE;
-               intel_de_write(i915, BLC_PWM_PCH_CTL1, pch_ctl1);
+               intel_de_write(display, BLC_PWM_PCH_CTL1, pch_ctl1);
        }
 
        if (HAS_PCH_LPT(i915))
-               intel_de_rmw(i915, SOUTH_CHICKEN2, LPT_PWM_GRANULARITY,
+               intel_de_rmw(display, SOUTH_CHICKEN2, LPT_PWM_GRANULARITY,
                             panel->backlight.alternate_pwm_increment ?
                             LPT_PWM_GRANULARITY : 0);
        else
-               intel_de_rmw(i915, SOUTH_CHICKEN1, SPT_PWM_GRANULARITY,
+               intel_de_rmw(display, SOUTH_CHICKEN1, SPT_PWM_GRANULARITY,
                             panel->backlight.alternate_pwm_increment ?
                             SPT_PWM_GRANULARITY : 0);
 
        pch_ctl2 = panel->backlight.pwm_level_max << 16;
-       intel_de_write(i915, BLC_PWM_PCH_CTL2, pch_ctl2);
+       intel_de_write(display, BLC_PWM_PCH_CTL2, pch_ctl2);
 
        pch_ctl1 = 0;
        if (panel->backlight.active_low_pwm)
@@ -500,9 +505,9 @@ static void lpt_enable_backlight(const struct 
intel_crtc_state *crtc_state,
        if (HAS_PCH_LPT(i915))
                pch_ctl1 |= BLM_PCH_OVERRIDE_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);
+       intel_de_write(display, BLC_PWM_PCH_CTL1, pch_ctl1);
+       intel_de_posting_read(display, BLC_PWM_PCH_CTL1);
+       intel_de_write(display, 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);
@@ -512,63 +517,66 @@ 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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        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(i915, BLC_PWM_CPU_CTL2);
+       cpu_ctl2 = intel_de_read(display, BLC_PWM_CPU_CTL2);
        if (cpu_ctl2 & BLM_PWM_ENABLE) {
-               drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s] CPU backlight 
already enabled\n",
+               drm_dbg_kms(display->drm,
+                           "[CONNECTOR:%d:%s] CPU backlight already enabled\n",
                            connector->base.base.id, connector->base.name);
                cpu_ctl2 &= ~BLM_PWM_ENABLE;
-               intel_de_write(i915, BLC_PWM_CPU_CTL2, cpu_ctl2);
+               intel_de_write(display, BLC_PWM_CPU_CTL2, cpu_ctl2);
        }
 
-       pch_ctl1 = intel_de_read(i915, BLC_PWM_PCH_CTL1);
+       pch_ctl1 = intel_de_read(display, BLC_PWM_PCH_CTL1);
        if (pch_ctl1 & BLM_PCH_PWM_ENABLE) {
-               drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s] PCH backlight 
already enabled\n",
+               drm_dbg_kms(display->drm,
+                           "[CONNECTOR:%d:%s] PCH backlight already enabled\n",
                            connector->base.base.id, connector->base.name);
                pch_ctl1 &= ~BLM_PCH_PWM_ENABLE;
-               intel_de_write(i915, BLC_PWM_PCH_CTL1, pch_ctl1);
+               intel_de_write(display, 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(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);
+       intel_de_write(display, BLC_PWM_CPU_CTL2, cpu_ctl2);
+       intel_de_posting_read(display, BLC_PWM_CPU_CTL2);
+       intel_de_write(display, 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(i915, BLC_PWM_PCH_CTL2, pch_ctl2);
+       intel_de_write(display, BLC_PWM_PCH_CTL2, pch_ctl2);
 
        pch_ctl1 = 0;
        if (panel->backlight.active_low_pwm)
                pch_ctl1 |= BLM_PCH_POLARITY;
 
-       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);
+       intel_de_write(display, BLC_PWM_PCH_CTL1, pch_ctl1);
+       intel_de_posting_read(display, BLC_PWM_PCH_CTL1);
+       intel_de_write(display, 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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        struct intel_panel *panel = &connector->panel;
        u32 ctl, freq;
 
-       ctl = intel_de_read(i915, BLC_PWM_CTL);
+       ctl = intel_de_read(display, BLC_PWM_CTL);
        if (ctl & BACKLIGHT_DUTY_CYCLE_MASK_PNV) {
-               drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s] backlight already 
enabled\n",
+               drm_dbg_kms(display->drm,
+                           "[CONNECTOR:%d:%s] backlight already enabled\n",
                            connector->base.base.id, connector->base.name);
-               intel_de_write(i915, BLC_PWM_CTL, 0);
+               intel_de_write(display, BLC_PWM_CTL, 0);
        }
 
        freq = panel->backlight.pwm_level_max;
@@ -578,11 +586,11 @@ 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(i915) && panel->backlight.active_low_pwm)
+       if (display->platform.pineview && panel->backlight.active_low_pwm)
                ctl |= BLM_POLARITY_PNV;
 
-       intel_de_write(i915, BLC_PWM_CTL, ctl);
-       intel_de_posting_read(i915, BLC_PWM_CTL);
+       intel_de_write(display, BLC_PWM_CTL, ctl);
+       intel_de_posting_read(display, BLC_PWM_CTL);
 
        /* XXX: combine this into above write? */
        intel_backlight_set_pwm_level(conn_state, level);
@@ -592,25 +600,26 @@ 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(i915) == 2)
-               intel_de_write(i915, BLC_HIST_CTL, BLM_HISTOGRAM_ENABLE);
+       if (DISPLAY_VER(display) == 2)
+               intel_de_write(display, BLC_HIST_CTL, 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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        struct intel_panel *panel = &connector->panel;
        enum pipe pipe = to_intel_crtc(conn_state->crtc)->pipe;
        u32 ctl, ctl2, freq;
 
-       ctl2 = intel_de_read(i915, BLC_PWM_CTL2);
+       ctl2 = intel_de_read(display, BLC_PWM_CTL2);
        if (ctl2 & BLM_PWM_ENABLE) {
-               drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s] backlight already 
enabled\n",
+               drm_dbg_kms(display->drm,
+                           "[CONNECTOR:%d:%s] backlight already enabled\n",
                            connector->base.base.id, connector->base.name);
                ctl2 &= ~BLM_PWM_ENABLE;
-               intel_de_write(i915, BLC_PWM_CTL2, ctl2);
+               intel_de_write(display, BLC_PWM_CTL2, ctl2);
        }
 
        freq = panel->backlight.pwm_level_max;
@@ -618,16 +627,16 @@ static void i965_enable_backlight(const struct 
intel_crtc_state *crtc_state,
                freq /= 0xff;
 
        ctl = freq << 16;
-       intel_de_write(i915, BLC_PWM_CTL, ctl);
+       intel_de_write(display, BLC_PWM_CTL, 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(i915, BLC_PWM_CTL2, ctl2);
-       intel_de_posting_read(i915, BLC_PWM_CTL2);
-       intel_de_write(i915, BLC_PWM_CTL2, ctl2 | BLM_PWM_ENABLE);
+       intel_de_write(display, BLC_PWM_CTL2, ctl2);
+       intel_de_posting_read(display, BLC_PWM_CTL2);
+       intel_de_write(display, BLC_PWM_CTL2, ctl2 | BLM_PWM_ENABLE);
 
        intel_backlight_set_pwm_level(conn_state, level);
 }
@@ -636,21 +645,22 @@ 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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        struct intel_panel *panel = &connector->panel;
        enum pipe pipe = to_intel_crtc(crtc_state->uapi.crtc)->pipe;
        u32 ctl, ctl2;
 
-       ctl2 = intel_de_read(i915, VLV_BLC_PWM_CTL2(pipe));
+       ctl2 = intel_de_read(display, VLV_BLC_PWM_CTL2(pipe));
        if (ctl2 & BLM_PWM_ENABLE) {
-               drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s] backlight already 
enabled\n",
+               drm_dbg_kms(display->drm,
+                           "[CONNECTOR:%d:%s] backlight already enabled\n",
                            connector->base.base.id, connector->base.name);
                ctl2 &= ~BLM_PWM_ENABLE;
-               intel_de_write(i915, VLV_BLC_PWM_CTL2(pipe), ctl2);
+               intel_de_write(display, VLV_BLC_PWM_CTL2(pipe), ctl2);
        }
 
        ctl = panel->backlight.pwm_level_max << 16;
-       intel_de_write(i915, VLV_BLC_PWM_CTL(pipe), ctl);
+       intel_de_write(display, VLV_BLC_PWM_CTL(pipe), ctl);
 
        /* XXX: combine this into above write? */
        intel_backlight_set_pwm_level(conn_state, level);
@@ -658,47 +668,49 @@ 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(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);
+       intel_de_write(display, VLV_BLC_PWM_CTL2(pipe), ctl2);
+       intel_de_posting_read(display, VLV_BLC_PWM_CTL2(pipe));
+       intel_de_write(display, 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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        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(i915, UTIL_PIN_CTL);
+               val = intel_de_read(display, UTIL_PIN_CTL);
                if (val & UTIL_PIN_ENABLE) {
-                       drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s] utility pin 
already enabled\n",
+                       drm_dbg_kms(display->drm,
+                                   "[CONNECTOR:%d:%s] utility pin already 
enabled\n",
                                    connector->base.base.id, 
connector->base.name);
                        val &= ~UTIL_PIN_ENABLE;
-                       intel_de_write(i915, UTIL_PIN_CTL, val);
+                       intel_de_write(display, UTIL_PIN_CTL, val);
                }
 
                val = 0;
                if (panel->backlight.util_pin_active_low)
                        val |= UTIL_PIN_POLARITY;
-               intel_de_write(i915, UTIL_PIN_CTL,
+               intel_de_write(display, UTIL_PIN_CTL,
                               val | UTIL_PIN_PIPE(pipe) | UTIL_PIN_MODE_PWM | 
UTIL_PIN_ENABLE);
        }
 
-       pwm_ctl = intel_de_read(i915, 
BXT_BLC_PWM_CTL(panel->backlight.controller));
+       pwm_ctl = intel_de_read(display, 
BXT_BLC_PWM_CTL(panel->backlight.controller));
        if (pwm_ctl & BXT_BLC_PWM_ENABLE) {
-               drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s] backlight already 
enabled\n",
+               drm_dbg_kms(display->drm,
+                           "[CONNECTOR:%d:%s] backlight already enabled\n",
                            connector->base.base.id, connector->base.name);
                pwm_ctl &= ~BXT_BLC_PWM_ENABLE;
-               intel_de_write(i915, 
BXT_BLC_PWM_CTL(panel->backlight.controller),
+               intel_de_write(display, 
BXT_BLC_PWM_CTL(panel->backlight.controller),
                               pwm_ctl);
        }
 
-       intel_de_write(i915, BXT_BLC_PWM_FREQ(panel->backlight.controller),
+       intel_de_write(display, BXT_BLC_PWM_FREQ(panel->backlight.controller),
                       panel->backlight.pwm_level_max);
 
        intel_backlight_set_pwm_level(conn_state, level);
@@ -707,9 +719,9 @@ 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(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),
+       intel_de_write(display, BXT_BLC_PWM_CTL(panel->backlight.controller), 
pwm_ctl);
+       intel_de_posting_read(display, 
BXT_BLC_PWM_CTL(panel->backlight.controller));
+       intel_de_write(display, BXT_BLC_PWM_CTL(panel->backlight.controller),
                       pwm_ctl | BXT_BLC_PWM_ENABLE);
 }
 
@@ -717,19 +729,19 @@ 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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        struct intel_panel *panel = &connector->panel;
        u32 pwm_ctl;
 
-       pwm_ctl = intel_de_read(i915, 
BXT_BLC_PWM_CTL(panel->backlight.controller));
+       pwm_ctl = intel_de_read(display, 
BXT_BLC_PWM_CTL(panel->backlight.controller));
        if (pwm_ctl & BXT_BLC_PWM_ENABLE) {
-               drm_dbg_kms(&i915->drm, "backlight already enabled\n");
+               drm_dbg_kms(display->drm, "backlight already enabled\n");
                pwm_ctl &= ~BXT_BLC_PWM_ENABLE;
-               intel_de_write(i915, 
BXT_BLC_PWM_CTL(panel->backlight.controller),
+               intel_de_write(display, 
BXT_BLC_PWM_CTL(panel->backlight.controller),
                               pwm_ctl);
        }
 
-       intel_de_write(i915, BXT_BLC_PWM_FREQ(panel->backlight.controller),
+       intel_de_write(display, BXT_BLC_PWM_FREQ(panel->backlight.controller),
                       panel->backlight.pwm_level_max);
 
        intel_backlight_set_pwm_level(conn_state, level);
@@ -738,9 +750,9 @@ 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(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),
+       intel_de_write(display, BXT_BLC_PWM_CTL(panel->backlight.controller), 
pwm_ctl);
+       intel_de_posting_read(display, 
BXT_BLC_PWM_CTL(panel->backlight.controller));
+       intel_de_write(display, BXT_BLC_PWM_CTL(panel->backlight.controller),
                       pwm_ctl | BXT_BLC_PWM_ENABLE);
 }
 
@@ -782,37 +794,37 @@ 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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        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(&i915->drm, "pipe %c\n", pipe_name(pipe));
+       drm_dbg_kms(display->drm, "pipe %c\n", pipe_name(pipe));
 
-       mutex_lock(&i915->display.backlight.lock);
+       mutex_lock(&display->backlight.lock);
 
        __intel_backlight_enable(crtc_state, conn_state);
 
-       mutex_unlock(&i915->display.backlight.lock);
+       mutex_unlock(&display->backlight.lock);
 }
 
 #if IS_ENABLED(CONFIG_BACKLIGHT_CLASS_DEVICE)
 static u32 intel_panel_get_backlight(struct intel_connector *connector)
 {
-       struct drm_i915_private *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        struct intel_panel *panel = &connector->panel;
        u32 val = 0;
 
-       mutex_lock(&i915->display.backlight.lock);
+       mutex_lock(&display->backlight.lock);
 
        if (panel->backlight.enabled)
                val = panel->backlight.funcs->get(connector, 
intel_connector_get_pipe(connector));
 
-       mutex_unlock(&i915->display.backlight.lock);
+       mutex_unlock(&display->backlight.lock);
 
-       drm_dbg_kms(&i915->drm, "get backlight PWM = %d\n", val);
+       drm_dbg_kms(display->drm, "get backlight PWM = %d\n", val);
        return val;
 }
 
@@ -831,16 +843,16 @@ 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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        struct intel_panel *panel = &connector->panel;
        u32 hw_level;
 
        if (!panel->backlight.present)
                return;
 
-       mutex_lock(&i915->display.backlight.lock);
+       mutex_lock(&display->backlight.lock);
 
-       drm_WARN_ON(&i915->drm, panel->backlight.max == 0);
+       drm_WARN_ON(display->drm, panel->backlight.max == 0);
 
        hw_level = scale_user_to_hw(connector, user_level, user_max);
        panel->backlight.level = hw_level;
@@ -848,18 +860,18 @@ 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(&i915->display.backlight.lock);
+       mutex_unlock(&display->backlight.lock);
 }
 
 static int intel_backlight_device_update_status(struct backlight_device *bd)
 {
        struct intel_connector *connector = bl_get_data(bd);
-       struct drm_i915_private *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        struct intel_panel *panel = &connector->panel;
 
-       drm_modeset_lock(&i915->drm.mode_config.connection_mutex, NULL);
+       drm_modeset_lock(&display->drm->mode_config.connection_mutex, NULL);
 
-       drm_dbg_kms(&i915->drm, "updating intel_backlight, brightness=%d/%d\n",
+       drm_dbg_kms(display->drm, "updating intel_backlight, 
brightness=%d/%d\n",
                    bd->props.brightness, bd->props.max_brightness);
        intel_panel_set_backlight(connector->base.state, bd->props.brightness,
                                  bd->props.max_brightness);
@@ -880,7 +892,7 @@ static int intel_backlight_device_update_status(struct 
backlight_device *bd)
                bd->props.power = BACKLIGHT_POWER_OFF;
        }
 
-       drm_modeset_unlock(&i915->drm.mode_config.connection_mutex);
+       drm_modeset_unlock(&display->drm->mode_config.connection_mutex);
 
        return 0;
 }
@@ -888,6 +900,7 @@ static int intel_backlight_device_update_status(struct 
backlight_device *bd)
 static int intel_backlight_device_get_brightness(struct backlight_device *bd)
 {
        struct intel_connector *connector = bl_get_data(bd);
+       struct intel_display *display = to_intel_display(connector);
        struct drm_i915_private *i915 = to_i915(connector->base.dev);
        intel_wakeref_t wakeref;
        int ret = 0;
@@ -895,13 +908,13 @@ static int intel_backlight_device_get_brightness(struct 
backlight_device *bd)
        with_intel_runtime_pm(&i915->runtime_pm, wakeref) {
                u32 hw_level;
 
-               drm_modeset_lock(&i915->drm.mode_config.connection_mutex, NULL);
+               drm_modeset_lock(&display->drm->mode_config.connection_mutex, 
NULL);
 
                hw_level = intel_panel_get_backlight(connector);
                ret = scale_hw_to_user(connector,
                                       hw_level, bd->props.max_brightness);
 
-               drm_modeset_unlock(&i915->drm.mode_config.connection_mutex);
+               drm_modeset_unlock(&display->drm->mode_config.connection_mutex);
        }
 
        return ret;
@@ -914,7 +927,7 @@ static const struct backlight_ops 
intel_backlight_device_ops = {
 
 int intel_backlight_device_register(struct intel_connector *connector)
 {
-       struct drm_i915_private *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        struct intel_panel *panel = &connector->panel;
        struct backlight_properties props;
        struct backlight_device *bd;
@@ -930,7 +943,8 @@ int intel_backlight_device_register(struct intel_connector 
*connector)
        WARN_ON(panel->backlight.max == 0);
 
        if (!acpi_video_backlight_use_native()) {
-               drm_info(&i915->drm, "Skipping intel_backlight registration\n");
+               drm_info(display->drm,
+                        "Skipping intel_backlight registration\n");
                return 0;
        }
 
@@ -967,7 +981,8 @@ int intel_backlight_device_register(struct intel_connector 
*connector)
                 */
                kfree(name);
                name = kasprintf(GFP_KERNEL, "card%d-%s-backlight",
-                                i915->drm.primary->index, 
connector->base.name);
+                                display->drm->primary->index,
+                                connector->base.name);
                if (!name)
                        return -ENOMEM;
        }
@@ -975,7 +990,7 @@ int intel_backlight_device_register(struct intel_connector 
*connector)
                                       &intel_backlight_device_ops, &props);
 
        if (IS_ERR(bd)) {
-               drm_err(&i915->drm,
+               drm_err(display->drm,
                        "[CONNECTOR:%d:%s] backlight device %s register failed: 
%ld\n",
                        connector->base.base.id, connector->base.name, name, 
PTR_ERR(bd));
                ret = PTR_ERR(bd);
@@ -984,7 +999,7 @@ int intel_backlight_device_register(struct intel_connector 
*connector)
 
        panel->backlight.device = bd;
 
-       drm_dbg_kms(&i915->drm,
+       drm_dbg_kms(display->drm,
                    "[CONNECTOR:%d:%s] backlight device %s registered\n",
                    connector->base.base.id, connector->base.name, name);
 
@@ -1011,9 +1026,9 @@ 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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
 
-       return DIV_ROUND_CLOSEST(KHz(DISPLAY_RUNTIME_INFO(i915)->rawclk_freq),
+       return 
DIV_ROUND_CLOSEST(KHz(DISPLAY_RUNTIME_INFO(display)->rawclk_freq),
                                 pwm_freq_hz);
 }
 
@@ -1073,9 +1088,9 @@ 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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
 
-       return DIV_ROUND_CLOSEST(KHz(DISPLAY_RUNTIME_INFO(i915)->rawclk_freq),
+       return 
DIV_ROUND_CLOSEST(KHz(DISPLAY_RUNTIME_INFO(display)->rawclk_freq),
                                 pwm_freq_hz * 128);
 }
 
@@ -1089,13 +1104,13 @@ 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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        int clock;
 
-       if (IS_PINEVIEW(i915))
-               clock = KHz(DISPLAY_RUNTIME_INFO(i915)->rawclk_freq);
+       if (display->platform.pineview)
+               clock = KHz(DISPLAY_RUNTIME_INFO(display)->rawclk_freq);
        else
-               clock = KHz(i915->display.cdclk.hw.cdclk);
+               clock = KHz(display->cdclk.hw.cdclk);
 
        return DIV_ROUND_CLOSEST(clock, pwm_freq_hz * 32);
 }
@@ -1107,13 +1122,13 @@ 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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        int clock;
 
-       if (IS_G4X(i915))
-               clock = KHz(DISPLAY_RUNTIME_INFO(i915)->rawclk_freq);
+       if (display->platform.g4x)
+               clock = KHz(DISPLAY_RUNTIME_INFO(display)->rawclk_freq);
        else
-               clock = KHz(i915->display.cdclk.hw.cdclk);
+               clock = KHz(display->cdclk.hw.cdclk);
 
        return DIV_ROUND_CLOSEST(clock, pwm_freq_hz * 128);
 }
@@ -1125,17 +1140,17 @@ 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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        int mul, clock;
 
-       if ((intel_de_read(i915, CBR1_VLV) & CBR_PWM_CLOCK_MUX_SELECT) == 0) {
-               if (IS_CHERRYVIEW(i915))
+       if ((intel_de_read(display, CBR1_VLV) & CBR_PWM_CLOCK_MUX_SELECT) == 0) 
{
+               if (display->platform.cherryview)
                        clock = KHz(19200);
                else
                        clock = MHz(25);
                mul = 16;
        } else {
-               clock = KHz(DISPLAY_RUNTIME_INFO(i915)->rawclk_freq);
+               clock = KHz(DISPLAY_RUNTIME_INFO(display)->rawclk_freq);
                mul = 128;
        }
 
@@ -1144,16 +1159,16 @@ 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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        u16 pwm_freq_hz = connector->panel.vbt.backlight.pwm_freq_hz;
 
        if (pwm_freq_hz) {
-               drm_dbg_kms(&i915->drm,
+               drm_dbg_kms(display->drm,
                            "VBT defined backlight frequency %u Hz\n",
                            pwm_freq_hz);
        } else {
                pwm_freq_hz = 200;
-               drm_dbg_kms(&i915->drm,
+               drm_dbg_kms(display->drm,
                            "default backlight frequency %u Hz\n",
                            pwm_freq_hz);
        }
@@ -1163,20 +1178,20 @@ static u16 get_vbt_pwm_freq(struct intel_connector 
*connector)
 
 static u32 get_backlight_max_vbt(struct intel_connector *connector)
 {
-       struct drm_i915_private *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        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(&i915->drm,
+               drm_dbg_kms(display->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(&i915->drm,
+               drm_dbg_kms(display->drm,
                            "backlight frequency conversion failed\n");
                return 0;
        }
@@ -1189,11 +1204,11 @@ static u32 get_backlight_max_vbt(struct intel_connector 
*connector)
  */
 static u32 get_backlight_min_vbt(struct intel_connector *connector)
 {
-       struct drm_i915_private *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        struct intel_panel *panel = &connector->panel;
        int min;
 
-       drm_WARN_ON(&i915->drm, panel->backlight.pwm_level_max == 0);
+       drm_WARN_ON(display->drm, panel->backlight.pwm_level_max == 0);
 
        /*
         * XXX: If the vbt value is 255, it makes min equal to max, which leads
@@ -1204,7 +1219,7 @@ 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(&i915->drm,
+               drm_dbg_kms(display->drm,
                            "clamping VBT min backlight %d/255 to %d/255\n",
                            connector->panel.vbt.backlight.min_brightness, min);
        }
@@ -1215,24 +1230,25 @@ static u32 get_backlight_min_vbt(struct intel_connector 
*connector)
 
 static int lpt_setup_backlight(struct intel_connector *connector, enum pipe 
unused)
 {
+       struct intel_display *display = to_intel_display(connector);
        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(i915))
-               alt = intel_de_read(i915, SOUTH_CHICKEN2) & LPT_PWM_GRANULARITY;
+               alt = intel_de_read(display, SOUTH_CHICKEN2) & 
LPT_PWM_GRANULARITY;
        else
-               alt = intel_de_read(i915, SOUTH_CHICKEN1) & SPT_PWM_GRANULARITY;
+               alt = intel_de_read(display, SOUTH_CHICKEN1) & 
SPT_PWM_GRANULARITY;
        panel->backlight.alternate_pwm_increment = alt;
 
-       pch_ctl1 = intel_de_read(i915, BLC_PWM_PCH_CTL1);
+       pch_ctl1 = intel_de_read(display, BLC_PWM_PCH_CTL1);
        panel->backlight.active_low_pwm = pch_ctl1 & BLM_PCH_POLARITY;
 
-       pch_ctl2 = intel_de_read(i915, BLC_PWM_PCH_CTL2);
+       pch_ctl2 = intel_de_read(display, BLC_PWM_PCH_CTL2);
        panel->backlight.pwm_level_max = pch_ctl2 >> 16;
 
-       cpu_ctl2 = intel_de_read(i915, BLC_PWM_CPU_CTL2);
+       cpu_ctl2 = intel_de_read(display, BLC_PWM_CPU_CTL2);
 
        if (!panel->backlight.pwm_level_max)
                panel->backlight.pwm_level_max = 
get_backlight_max_vbt(connector);
@@ -1251,19 +1267,19 @@ static int lpt_setup_backlight(struct intel_connector 
*connector, enum pipe unus
        if (cpu_mode) {
                val = pch_get_backlight(connector, unused);
 
-               drm_dbg_kms(&i915->drm,
+               drm_dbg_kms(display->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(i915, BLC_PWM_PCH_CTL1,
+               intel_de_write(display, BLC_PWM_PCH_CTL1,
                               pch_ctl1 | BLM_PCH_OVERRIDE_ENABLE);
 
-               intel_de_write(i915, BLC_PWM_CPU_CTL2,
+               intel_de_write(display, BLC_PWM_CPU_CTL2,
                               cpu_ctl2 & ~BLM_PWM_ENABLE);
        }
 
-       drm_dbg_kms(&i915->drm,
+       drm_dbg_kms(display->drm,
                    "[CONNECTOR:%d:%s] Using native PCH PWM for backlight 
control\n",
                    connector->base.base.id, connector->base.name);
 
@@ -1272,14 +1288,14 @@ 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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        struct intel_panel *panel = &connector->panel;
        u32 cpu_ctl2, pch_ctl1, pch_ctl2;
 
-       pch_ctl1 = intel_de_read(i915, BLC_PWM_PCH_CTL1);
+       pch_ctl1 = intel_de_read(display, BLC_PWM_PCH_CTL1);
        panel->backlight.active_low_pwm = pch_ctl1 & BLM_PCH_POLARITY;
 
-       pch_ctl2 = intel_de_read(i915, BLC_PWM_PCH_CTL2);
+       pch_ctl2 = intel_de_read(display, BLC_PWM_PCH_CTL2);
        panel->backlight.pwm_level_max = pch_ctl2 >> 16;
 
        if (!panel->backlight.pwm_level_max)
@@ -1290,11 +1306,11 @@ 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(i915, BLC_PWM_CPU_CTL2);
+       cpu_ctl2 = intel_de_read(display, BLC_PWM_CPU_CTL2);
        panel->backlight.pwm_enabled = (cpu_ctl2 & BLM_PWM_ENABLE) &&
                (pch_ctl1 & BLM_PCH_PWM_ENABLE);
 
-       drm_dbg_kms(&i915->drm,
+       drm_dbg_kms(display->drm,
                    "[CONNECTOR:%d:%s] Using native PCH PWM for backlight 
control\n",
                    connector->base.base.id, connector->base.name);
 
@@ -1303,16 +1319,16 @@ 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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        struct intel_panel *panel = &connector->panel;
        u32 ctl, val;
 
-       ctl = intel_de_read(i915, BLC_PWM_CTL);
+       ctl = intel_de_read(display, BLC_PWM_CTL);
 
-       if (DISPLAY_VER(i915) == 2 || IS_I915GM(i915) || IS_I945GM(i915))
+       if (DISPLAY_VER(display) == 2 || display->platform.i915gm || 
display->platform.i945gm)
                panel->backlight.combination_mode = ctl & BLM_LEGACY_MODE;
 
-       if (IS_PINEVIEW(i915))
+       if (display->platform.pineview)
                panel->backlight.active_low_pwm = ctl & BLM_POLARITY_PNV;
 
        panel->backlight.pwm_level_max = ctl >> 17;
@@ -1336,7 +1352,7 @@ static int i9xx_setup_backlight(struct intel_connector 
*connector, enum pipe unu
 
        panel->backlight.pwm_enabled = val != 0;
 
-       drm_dbg_kms(&i915->drm,
+       drm_dbg_kms(display->drm,
                    "[CONNECTOR:%d:%s] Using native PWM for backlight 
control\n",
                    connector->base.base.id, connector->base.name);
 
@@ -1345,15 +1361,15 @@ 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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        struct intel_panel *panel = &connector->panel;
        u32 ctl, ctl2;
 
-       ctl2 = intel_de_read(i915, BLC_PWM_CTL2);
+       ctl2 = intel_de_read(display, BLC_PWM_CTL2);
        panel->backlight.combination_mode = ctl2 & BLM_COMBINATION_MODE;
        panel->backlight.active_low_pwm = ctl2 & BLM_POLARITY_I965;
 
-       ctl = intel_de_read(i915, BLC_PWM_CTL);
+       ctl = intel_de_read(display, BLC_PWM_CTL);
        panel->backlight.pwm_level_max = ctl >> 16;
 
        if (!panel->backlight.pwm_level_max)
@@ -1369,7 +1385,7 @@ static int i965_setup_backlight(struct intel_connector 
*connector, enum pipe unu
 
        panel->backlight.pwm_enabled = ctl2 & BLM_PWM_ENABLE;
 
-       drm_dbg_kms(&i915->drm,
+       drm_dbg_kms(display->drm,
                    "[CONNECTOR:%d:%s] Using native PWM for backlight 
control\n",
                    connector->base.base.id, connector->base.name);
 
@@ -1378,17 +1394,17 @@ 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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        struct intel_panel *panel = &connector->panel;
        u32 ctl, ctl2;
 
-       if (drm_WARN_ON(&i915->drm, pipe != PIPE_A && pipe != PIPE_B))
+       if (drm_WARN_ON(display->drm, pipe != PIPE_A && pipe != PIPE_B))
                return -ENODEV;
 
-       ctl2 = intel_de_read(i915, VLV_BLC_PWM_CTL2(pipe));
+       ctl2 = intel_de_read(display, VLV_BLC_PWM_CTL2(pipe));
        panel->backlight.active_low_pwm = ctl2 & BLM_POLARITY_I965;
 
-       ctl = intel_de_read(i915, VLV_BLC_PWM_CTL(pipe));
+       ctl = intel_de_read(display, VLV_BLC_PWM_CTL(pipe));
        panel->backlight.pwm_level_max = ctl >> 16;
 
        if (!panel->backlight.pwm_level_max)
@@ -1401,7 +1417,7 @@ static int vlv_setup_backlight(struct intel_connector 
*connector, enum pipe pipe
 
        panel->backlight.pwm_enabled = ctl2 & BLM_PWM_ENABLE;
 
-       drm_dbg_kms(&i915->drm,
+       drm_dbg_kms(display->drm,
                    "[CONNECTOR:%d:%s] Using native PWM for backlight control 
(on pipe %c)\n",
                    connector->base.base.id, connector->base.name, 
pipe_name(pipe));
 
@@ -1411,25 +1427,25 @@ 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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        struct intel_panel *panel = &connector->panel;
        u32 pwm_ctl, val;
 
        panel->backlight.controller = connector->panel.vbt.backlight.controller;
 
-       pwm_ctl = intel_de_read(i915,
+       pwm_ctl = intel_de_read(display,
                                BXT_BLC_PWM_CTL(panel->backlight.controller));
 
        /* Controller 1 uses the utility pin. */
        if (panel->backlight.controller == 1) {
-               val = intel_de_read(i915, UTIL_PIN_CTL);
+               val = intel_de_read(display, 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(i915, 
BXT_BLC_PWM_FREQ(panel->backlight.controller));
+               intel_de_read(display, 
BXT_BLC_PWM_FREQ(panel->backlight.controller));
 
        if (!panel->backlight.pwm_level_max)
                panel->backlight.pwm_level_max = 
get_backlight_max_vbt(connector);
@@ -1441,7 +1457,7 @@ bxt_setup_backlight(struct intel_connector *connector, 
enum pipe unused)
 
        panel->backlight.pwm_enabled = pwm_ctl & BXT_BLC_PWM_ENABLE;
 
-       drm_dbg_kms(&i915->drm,
+       drm_dbg_kms(display->drm,
                    "[CONNECTOR:%d:%s] Using native PWM for backlight control 
(controller=%d)\n",
                    connector->base.base.id, connector->base.name,
                    panel->backlight.controller);
@@ -1449,8 +1465,10 @@ bxt_setup_backlight(struct intel_connector *connector, 
enum pipe unused)
        return 0;
 }
 
-static int cnp_num_backlight_controllers(struct drm_i915_private *i915)
+static int cnp_num_backlight_controllers(struct intel_display *display)
 {
+       struct drm_i915_private *i915 = to_i915(display->drm);
+
        if (INTEL_PCH_TYPE(i915) >= PCH_MTL)
                return 2;
 
@@ -1463,15 +1481,17 @@ static int cnp_num_backlight_controllers(struct 
drm_i915_private *i915)
        return 1;
 }
 
-static bool cnp_backlight_controller_is_valid(struct drm_i915_private *i915, 
int controller)
+static bool cnp_backlight_controller_is_valid(struct intel_display *display, 
int controller)
 {
-       if (controller < 0 || controller >= cnp_num_backlight_controllers(i915))
+       struct drm_i915_private *i915 = to_i915(display->drm);
+
+       if (controller < 0 || controller >= 
cnp_num_backlight_controllers(display))
                return false;
 
        if (controller == 1 &&
            INTEL_PCH_TYPE(i915) >= PCH_ICP &&
            INTEL_PCH_TYPE(i915) <= PCH_ADP)
-               return intel_de_read(i915, SOUTH_CHICKEN1) & 
ICP_SECOND_PPS_IO_SELECT;
+               return intel_de_read(display, SOUTH_CHICKEN1) & 
ICP_SECOND_PPS_IO_SELECT;
 
        return true;
 }
@@ -1479,7 +1499,7 @@ static bool cnp_backlight_controller_is_valid(struct 
drm_i915_private *i915, int
 static int
 cnp_setup_backlight(struct intel_connector *connector, enum pipe unused)
 {
-       struct drm_i915_private *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        struct intel_panel *panel = &connector->panel;
        u32 pwm_ctl;
 
@@ -1488,19 +1508,20 @@ cnp_setup_backlight(struct intel_connector *connector, 
enum pipe unused)
         * controller. ICP+ can have two controllers, depending on pin muxing.
         */
        panel->backlight.controller = connector->panel.vbt.backlight.controller;
-       if (!cnp_backlight_controller_is_valid(i915, 
panel->backlight.controller)) {
-               drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s] Invalid backlight 
controller %d, assuming 0\n",
+       if (!cnp_backlight_controller_is_valid(display, 
panel->backlight.controller)) {
+               drm_dbg_kms(display->drm,
+                           "[CONNECTOR:%d:%s] Invalid backlight controller %d, 
assuming 0\n",
                            connector->base.base.id, connector->base.name,
                            panel->backlight.controller);
                panel->backlight.controller = 0;
        }
 
-       pwm_ctl = intel_de_read(i915,
+       pwm_ctl = intel_de_read(display,
                                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(i915, 
BXT_BLC_PWM_FREQ(panel->backlight.controller));
+               intel_de_read(display, 
BXT_BLC_PWM_FREQ(panel->backlight.controller));
 
        if (!panel->backlight.pwm_level_max)
                panel->backlight.pwm_level_max = 
get_backlight_max_vbt(connector);
@@ -1512,7 +1533,7 @@ cnp_setup_backlight(struct intel_connector *connector, 
enum pipe unused)
 
        panel->backlight.pwm_enabled = pwm_ctl & BXT_BLC_PWM_ENABLE;
 
-       drm_dbg_kms(&i915->drm,
+       drm_dbg_kms(display->drm,
                    "[CONNECTOR:%d:%s] Using native PCH PWM for backlight 
control (controller=%d)\n",
                    connector->base.base.id, connector->base.name,
                    panel->backlight.controller);
@@ -1523,22 +1544,25 @@ cnp_setup_backlight(struct intel_connector *connector, 
enum pipe unused)
 static int ext_pwm_setup_backlight(struct intel_connector *connector,
                                   enum pipe pipe)
 {
-       struct drm_i915_private *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        struct intel_panel *panel = &connector->panel;
        const char *desc;
        u32 level;
 
        /* Get the right PWM chip for DSI backlight according to VBT */
        if (connector->panel.vbt.dsi.config->pwm_blc == PPS_BLC_PMIC) {
-               panel->backlight.pwm = pwm_get(i915->drm.dev, 
"pwm_pmic_backlight");
+               panel->backlight.pwm = pwm_get(display->drm->dev,
+                                              "pwm_pmic_backlight");
                desc = "PMIC";
        } else {
-               panel->backlight.pwm = pwm_get(i915->drm.dev, 
"pwm_soc_backlight");
+               panel->backlight.pwm = pwm_get(display->drm->dev,
+                                              "pwm_soc_backlight");
                desc = "SoC";
        }
 
        if (IS_ERR(panel->backlight.pwm)) {
-               drm_err(&i915->drm, "[CONNECTOR:%d:%s] Failed to get the %s PWM 
chip\n",
+               drm_err(display->drm,
+                       "[CONNECTOR:%d:%s] Failed to get the %s PWM chip\n",
                        connector->base.base.id, connector->base.name, desc);
                panel->backlight.pwm = NULL;
                return -ENODEV;
@@ -1556,7 +1580,8 @@ 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(&i915->drm, "[CONNECTOR:%d:%s] PWM already enabled 
at freq %ld, VBT freq %d, level %d\n",
+               drm_dbg_kms(display->drm,
+                           "[CONNECTOR:%d:%s] PWM already enabled at freq %ld, 
VBT freq %d, level %d\n",
                            connector->base.base.id, connector->base.name,
                            NSEC_PER_SEC / (unsigned 
long)panel->backlight.pwm_state.period,
                            get_vbt_pwm_freq(connector), level);
@@ -1566,7 +1591,7 @@ static int ext_pwm_setup_backlight(struct intel_connector 
*connector,
                        NSEC_PER_SEC / get_vbt_pwm_freq(connector);
        }
 
-       drm_dbg_kms(&i915->drm,
+       drm_dbg_kms(display->drm,
                    "[CONNECTOR:%d:%s] Using %s PWM for backlight control\n",
                    connector->base.base.id, connector->base.name, desc);
 
@@ -1632,17 +1657,17 @@ 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 *i915 = to_i915(connector->base.dev);
+       struct intel_display *display = to_intel_display(connector);
        struct intel_panel *panel = &connector->panel;
 
        if (!panel->backlight.present)
                return;
 
-       mutex_lock(&i915->display.backlight.lock);
+       mutex_lock(&display->backlight.lock);
        if (!panel->backlight.enabled)
                __intel_backlight_enable(crtc_state, conn_state);
 
-       mutex_unlock(&i915->display.backlight.lock);
+       mutex_unlock(&display->backlight.lock);
 }
 
 int intel_backlight_setup(struct intel_connector *connector, enum pipe pipe)
@@ -1793,13 +1818,14 @@ void intel_backlight_init_funcs(struct intel_panel 
*panel)
 {
        struct intel_connector *connector =
                container_of(panel, struct intel_connector, panel);
+       struct intel_display *display = to_intel_display(connector);
        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(i915) || IS_BROXTON(i915)) {
+       if (display->platform.geminilake || display->platform.broxton) {
                panel->backlight.pwm_funcs = &bxt_pwm_funcs;
        } else if (INTEL_PCH_TYPE(i915) >= PCH_CNP) {
                panel->backlight.pwm_funcs = &cnp_pwm_funcs;
@@ -1810,13 +1836,13 @@ void intel_backlight_init_funcs(struct intel_panel 
*panel)
                        panel->backlight.pwm_funcs = &spt_pwm_funcs;
        } else if (HAS_PCH_SPLIT(i915)) {
                panel->backlight.pwm_funcs = &pch_pwm_funcs;
-       } else if (IS_VALLEYVIEW(i915) || IS_CHERRYVIEW(i915)) {
+       } else if (display->platform.valleyview || 
display->platform.cherryview) {
                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(i915) == 4) {
+       } else if (DISPLAY_VER(display) == 4) {
                panel->backlight.pwm_funcs = &i965_pwm_funcs;
        } else {
                panel->backlight.pwm_funcs = &i9xx_pwm_funcs;
@@ -1826,7 +1852,7 @@ void intel_backlight_init_funcs(struct intel_panel *panel)
                if (intel_dp_aux_init_backlight_funcs(connector) == 0)
                        return;
 
-               if (!intel_has_quirk(&i915->display, 
QUIRK_NO_PPS_BACKLIGHT_POWER_HOOK))
+               if (!intel_has_quirk(display, 
QUIRK_NO_PPS_BACKLIGHT_POWER_HOOK))
                        connector->panel.backlight.power = 
intel_pps_backlight_power;
        }
 
-- 
2.39.5

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