[PATCH v2 11/14] drm/i915/bios: save a higher level pointer in ddi_vbt_port_info[]

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We'll be needing the intel_bios_encoder_data pointer going forward, and
it's just easier to store the higher level pointer in the
ddi_vbt_port_info[] array.

Cc: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Reviewed-by: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
---
 drivers/gpu/drm/i915/display/intel_bios.c | 28 +++++++++++------------
 drivers/gpu/drm/i915/display/intel_bios.h |  1 +
 drivers/gpu/drm/i915/i915_drv.h           |  2 +-
 3 files changed, 16 insertions(+), 15 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c
index 43cb5048ab9a..db13637d0ab9 100644
--- a/drivers/gpu/drm/i915/display/intel_bios.c
+++ b/drivers/gpu/drm/i915/display/intel_bios.c
@@ -1513,7 +1513,7 @@ static enum port get_port_by_ddc_pin(struct drm_i915_private *i915, u8 ddc_pin)
 	for_each_port(port) {
 		info = &i915->vbt.ddi_port_info[port];
 
-		if (info->child && ddc_pin == info->alternate_ddc_pin)
+		if (info->devdata && ddc_pin == info->alternate_ddc_pin)
 			return port;
 	}
 
@@ -1563,7 +1563,7 @@ static enum port get_port_by_aux_ch(struct drm_i915_private *i915, u8 aux_ch)
 	for_each_port(port) {
 		info = &i915->vbt.ddi_port_info[port];
 
-		if (info->child && aux_ch == info->alternate_aux_channel)
+		if (info->devdata && aux_ch == info->alternate_aux_channel)
 			return port;
 	}
 
@@ -1862,7 +1862,7 @@ static void parse_ddi_port(struct drm_i915_private *i915,
 
 	info = &i915->vbt.ddi_port_info[port];
 
-	if (info->child) {
+	if (info->devdata) {
 		drm_dbg_kms(&i915->drm,
 			    "More than one child device for port %c in VBT, using the first.\n",
 			    port_name(port));
@@ -1976,7 +1976,7 @@ static void parse_ddi_port(struct drm_i915_private *i915,
 			    port_name(port), info->dp_max_link_rate);
 	}
 
-	info->child = child;
+	info->devdata = devdata;
 }
 
 static void parse_ddi_ports(struct drm_i915_private *i915)
@@ -2517,7 +2517,7 @@ bool intel_bios_is_port_present(struct drm_i915_private *i915, enum port port)
 		const struct ddi_vbt_port_info *port_info =
 			&i915->vbt.ddi_port_info[port];
 
-		return port_info->child;
+		return port_info->devdata;
 	}
 
 	/* FIXME maybe deal with port A as well? */
@@ -2764,13 +2764,13 @@ bool
 intel_bios_is_port_hpd_inverted(const struct drm_i915_private *i915,
 				enum port port)
 {
-	const struct child_device_config *child =
-		i915->vbt.ddi_port_info[port].child;
+	const struct intel_bios_encoder_data *devdata =
+		i915->vbt.ddi_port_info[port].devdata;
 
 	if (drm_WARN_ON_ONCE(&i915->drm, !IS_GEN9_LP(i915)))
 		return false;
 
-	return child && child->hpd_invert;
+	return devdata && devdata->child.hpd_invert;
 }
 
 /**
@@ -2784,10 +2784,10 @@ bool
 intel_bios_is_lspcon_present(const struct drm_i915_private *i915,
 			     enum port port)
 {
-	const struct child_device_config *child =
-		i915->vbt.ddi_port_info[port].child;
+	const struct intel_bios_encoder_data *devdata =
+		i915->vbt.ddi_port_info[port].devdata;
 
-	return HAS_LSPCON(i915) && child && child->lspcon;
+	return HAS_LSPCON(i915) && devdata && devdata->child.lspcon;
 }
 
 /**
@@ -2801,10 +2801,10 @@ bool
 intel_bios_is_lane_reversal_needed(const struct drm_i915_private *i915,
 				   enum port port)
 {
-	const struct child_device_config *child =
-		i915->vbt.ddi_port_info[port].child;
+	const struct intel_bios_encoder_data *devdata =
+		i915->vbt.ddi_port_info[port].devdata;
 
-	return child && child->lane_reversal;
+	return devdata && devdata->child.lane_reversal;
 }
 
 enum aux_ch intel_bios_port_aux_ch(struct drm_i915_private *i915,
diff --git a/drivers/gpu/drm/i915/display/intel_bios.h b/drivers/gpu/drm/i915/display/intel_bios.h
index f25190ecfe97..6591cf7758f2 100644
--- a/drivers/gpu/drm/i915/display/intel_bios.h
+++ b/drivers/gpu/drm/i915/display/intel_bios.h
@@ -33,6 +33,7 @@
 #include <linux/types.h>
 
 struct drm_i915_private;
+struct intel_bios_encoder_data;
 struct intel_crtc_state;
 struct intel_encoder;
 enum port;
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 26f7dc71abfd..412c3d973279 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -584,7 +584,7 @@ i915_fence_timeout(const struct drm_i915_private *i915)
 
 struct ddi_vbt_port_info {
 	/* Non-NULL if port present. */
-	const struct child_device_config *child;
+	const struct intel_bios_encoder_data *devdata;
 
 	int max_tmds_clock;
 
-- 
2.20.1

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