drm/i915/panel: use struct drm_device based logging

Convert all the DRM_* logging macros to the struct drm_device based
macros to provide device specific logging.

No functional changes.

Generated using the following semantic patch, originally written by
Wambui Karuga <wambui.karugax@gmail.com>, with manual fixups on top:

@@
identifier fn, T;
@@

fn(...,struct drm_i915_private *T,...) {
<+...
(
-DRM_INFO(
+drm_info(&T->drm,
...)
|
-DRM_NOTE(
+drm_notice(&T->drm,
...)
|
-DRM_ERROR(
+drm_err(&T->drm,
...)
|
-DRM_WARN(
+drm_warn(&T->drm,
...)
|
-DRM_DEBUG_DRIVER(
+drm_dbg(&T->drm,
...)
|
-DRM_DEBUG_KMS(
+drm_dbg_kms(&T->drm,
...)
|
-DRM_DEBUG_ATOMIC(
+drm_dbg_atomic(&T->drm,
...)
)
...+>
}

@@
identifier fn, T;
@@

fn(...) {
...
struct drm_i915_private *T = ...;
<+...
(
-DRM_INFO(
+drm_info(&T->drm,
...)
|
-DRM_NOTE(
+drm_notice(&T->drm,
...)
|
-DRM_ERROR(
+drm_err(&T->drm,
...)
|
-DRM_WARN(
+drm_warn(&T->drm,
...)
|
-DRM_DEBUG_DRIVER(
+drm_dbg(&T->drm,
...)
|
-DRM_DEBUG_KMS(
+drm_dbg_kms(&T->drm,
...)
|
-DRM_DEBUG_ATOMIC(
+drm_dbg_atomic(&T->drm,
...)
)
...+>
}

Cc: Wambui Karuga <wambui.karugax@gmail.com>
Reviewed-by: Wambui Karuga <wambui.karugax@gmail.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200402114819.17232-2-jani.nikula@intel.com

drivers/gpu/drm/i915/display/intel_panel.c

@@ -684,9 +684,10 @@ 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_panel *panel = &connector->panel;
 
-	DRM_DEBUG_DRIVER("set backlight PWM = %d\n", level);
+	drm_dbg_kms(&i915->drm, "set backlight PWM = %d\n", level);
 
 	level = intel_panel_compute_brightness(connector, level);
 	panel->backlight.set(conn_state, level);
@@ -867,7 +868,7 @@ void intel_panel_disable_backlight(const struct drm_connector_state *old_conn_st
 	 * another client is not activated.
 	 */
 	if (dev_priv->drm.switch_power_state == DRM_SWITCH_POWER_CHANGING) {
-		drm_dbg(&dev_priv->drm,
+		drm_dbg_kms(&dev_priv->drm,
 			    "Skipping backlight disable on vga switch\n");
 		return;
 	}
@@ -1244,7 +1245,7 @@ static u32 intel_panel_get_backlight(struct intel_connector *connector)
 
 	mutex_unlock(&dev_priv->backlight_lock);
 
-	drm_dbg(&dev_priv->drm, "get backlight PWM = %d\n", val);
+	drm_dbg_kms(&dev_priv->drm, "get backlight PWM = %d\n", val);
 	return val;
 }
 
@@ -1335,6 +1336,7 @@ 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_panel *panel = &connector->panel;
 	struct backlight_properties props;
 
@@ -1374,13 +1376,14 @@ int intel_backlight_device_register(struct intel_connector *connector)
 					  &intel_backlight_device_ops, &props);
 
 	if (IS_ERR(panel->backlight.device)) {
-		DRM_ERROR("Failed to register backlight: %ld\n",
+		drm_err(&i915->drm, "Failed to register backlight: %ld\n",
 			PTR_ERR(panel->backlight.device));
 		panel->backlight.device = NULL;
 		return -ENODEV;
 	}
 
-	DRM_DEBUG_KMS("Connector %s backlight sysfs interface registered\n",
+	drm_dbg_kms(&i915->drm,
+		    "Connector %s backlight sysfs interface registered\n",
 		    connector->base.name);
 
 	return 0;