[Intel-gfx] [PATCH 10/10] drm/i915: Use encoder->devdata in eDP init

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

Since we now populate encoder->devdata for all DP capable
platforms we can consult it directly during the eDP
connector init instead of taking a detour via some global
list/array.

Unfortunately we can't quire get rid of
intel_dp_is_port_edp() since it's still used by the higher
level ilk/vlv/chv output setup code.

Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_bios.c | 17 +----------------
 drivers/gpu/drm/i915/display/intel_bios.h |  1 +
 drivers/gpu/drm/i915/display/intel_dp.c   | 17 +++++++++++++----
 3 files changed, 15 insertions(+), 20 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c
index 1af175b48ae6..ec4544a8b333 100644
--- a/drivers/gpu/drm/i915/display/intel_bios.c
+++ b/drivers/gpu/drm/i915/display/intel_bios.c
@@ -2584,7 +2584,7 @@ intel_bios_encoder_supports_dp(const struct intel_bios_encoder_data *devdata)
 	return devdata->child.device_type & DEVICE_TYPE_DISPLAYPORT_OUTPUT;
 }
 
-static bool
+bool
 intel_bios_encoder_supports_edp(const struct intel_bios_encoder_data *devdata)
 {
 	return intel_bios_encoder_supports_dp(devdata) &&
@@ -3413,21 +3413,6 @@ bool intel_bios_is_port_present(struct drm_i915_private *i915, enum port port)
 	return false;
 }
 
-/**
- * intel_bios_is_port_edp - is the device in given port eDP
- * @i915:	i915 device instance
- * @port:	port to check
- *
- * Return true if the device in %port is eDP.
- */
-bool intel_bios_is_port_edp(struct drm_i915_private *i915, enum port port)
-{
-	const struct intel_bios_encoder_data *devdata =
-		intel_bios_encoder_data_lookup(i915, port);
-
-	return devdata && intel_bios_encoder_supports_edp(devdata);
-}
-
 static bool intel_bios_encoder_supports_dp_dual_mode(const struct intel_bios_encoder_data *devdata)
 {
 	const struct child_device_config *child = &devdata->child;
diff --git a/drivers/gpu/drm/i915/display/intel_bios.h b/drivers/gpu/drm/i915/display/intel_bios.h
index eaff41256a9c..1a6ae38bd4f6 100644
--- a/drivers/gpu/drm/i915/display/intel_bios.h
+++ b/drivers/gpu/drm/i915/display/intel_bios.h
@@ -268,6 +268,7 @@ intel_bios_encoder_data_lookup(struct drm_i915_private *i915, enum port port);
 bool intel_bios_encoder_supports_dvi(const struct intel_bios_encoder_data *devdata);
 bool intel_bios_encoder_supports_hdmi(const struct intel_bios_encoder_data *devdata);
 bool intel_bios_encoder_supports_dp(const struct intel_bios_encoder_data *devdata);
+bool intel_bios_encoder_supports_edp(const struct intel_bios_encoder_data *devdata);
 bool intel_bios_encoder_supports_typec_usb(const struct intel_bios_encoder_data *devdata);
 bool intel_bios_encoder_supports_tbt(const struct intel_bios_encoder_data *devdata);
 bool intel_bios_encoder_is_lspcon(const struct intel_bios_encoder_data *devdata);
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 6b836afa0698..e4ea84b5d946 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -5129,8 +5129,9 @@ intel_dp_hpd_pulse(struct intel_digital_port *dig_port, bool long_hpd)
 	return IRQ_HANDLED;
 }
 
-/* check the VBT to see whether the eDP is on another port */
-bool intel_dp_is_port_edp(struct drm_i915_private *dev_priv, enum port port)
+static bool _intel_dp_is_port_edp(struct drm_i915_private *dev_priv,
+				  const struct intel_bios_encoder_data *devdata,
+				  enum port port)
 {
 	/*
 	 * eDP not supported on g4x. so bail out early just
@@ -5142,7 +5143,15 @@ bool intel_dp_is_port_edp(struct drm_i915_private *dev_priv, enum port port)
 	if (DISPLAY_VER(dev_priv) < 9 && port == PORT_A)
 		return true;
 
-	return intel_bios_is_port_edp(dev_priv, port);
+	return devdata && intel_bios_encoder_supports_edp(devdata);
+}
+
+bool intel_dp_is_port_edp(struct drm_i915_private *i915, enum port port)
+{
+	const struct intel_bios_encoder_data *devdata =
+		intel_bios_encoder_data_lookup(i915, port);
+
+	return _intel_dp_is_port_edp(i915, devdata, port);
 }
 
 static bool
@@ -5415,7 +5424,7 @@ intel_dp_init_connector(struct intel_digital_port *dig_port,
 	intel_dp->DP = intel_de_read(dev_priv, intel_dp->output_reg);
 	intel_dp->attached_connector = intel_connector;
 
-	if (intel_dp_is_port_edp(dev_priv, port)) {
+	if (_intel_dp_is_port_edp(dev_priv, intel_encoder->devdata, port)) {
 		/*
 		 * Currently we don't support eDP on TypeC ports, although in
 		 * theory it could work on TypeC legacy ports.
-- 
2.39.1