[1/4] drm/i915: Convert intel_hpd_irq_event() into an encoder hotplug hook

Submitted by Ville Syrjälä on Jan. 16, 2018, 1:35 p.m.

Details

Message ID 20180116133542.31499-1-ville.syrjala@linux.intel.com
State New
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Series "Series without cover letter" ( rev: 1 ) in Intel GFX - Try Bot

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Commit Message

Ville Syrjälä Jan. 16, 2018, 1:35 p.m.
From: Ville Syrjälä <ville.syrjala@linux.intel.com>

Allow encoders to customize their hotplug processing by moving the
intel_hpd_irq_event() code into an encoder hotplug vfunc. Currently
only SDVO needs this to re-enable hotplug signalling in the SDVO
chip. We'll use this same hook for DP/HDMI link management later.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
 drivers/gpu/drm/i915/intel_crt.c     |  4 +++-
 drivers/gpu/drm/i915/intel_ddi.c     |  1 +
 drivers/gpu/drm/i915/intel_dp.c      |  1 +
 drivers/gpu/drm/i915/intel_drv.h     |  6 ++++--
 drivers/gpu/drm/i915/intel_hdmi.c    |  1 +
 drivers/gpu/drm/i915/intel_hotplug.c | 24 ++++++++++++------------
 drivers/gpu/drm/i915/intel_sdvo.c    | 12 ++++++++++--
 7 files changed, 32 insertions(+), 17 deletions(-)

Patch hide | download patch | download mbox

diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index 9f31aea51dff..9bc47cff5409 100644
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -966,8 +966,10 @@  void intel_crt_init(struct drm_i915_private *dev_priv)
 	crt->base.power_domain = POWER_DOMAIN_PORT_CRT;
 
 	if (I915_HAS_HOTPLUG(dev_priv) &&
-	    !dmi_check_system(intel_spurious_crt_detect))
+	    !dmi_check_system(intel_spurious_crt_detect)) {
 		crt->base.hpd_pin = HPD_CRT;
+		crt->base.hotplug = intel_encoder_hotplug;
+	}
 
 	if (HAS_DDI(dev_priv)) {
 		crt->base.port = PORT_E;
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 6260a882fbe4..1aeae3e97013 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -2866,6 +2866,7 @@  void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port)
 	drm_encoder_init(&dev_priv->drm, encoder, &intel_ddi_funcs,
 			 DRM_MODE_ENCODER_TMDS, "DDI %c", port_name(port));
 
+	intel_encoder->hotplug = intel_encoder_hotplug;
 	intel_encoder->compute_output_type = intel_ddi_compute_output_type;
 	intel_encoder->compute_config = intel_ddi_compute_config;
 	intel_encoder->enable = intel_enable_ddi;
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 68229f53d5b8..6bbf14410c2a 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -6400,6 +6400,7 @@  bool intel_dp_init(struct drm_i915_private *dev_priv,
 			     "DP %c", port_name(port)))
 		goto err_encoder_init;
 
+	intel_encoder->hotplug = intel_encoder_hotplug;
 	intel_encoder->compute_config = intel_dp_compute_config;
 	intel_encoder->get_hw_state = intel_dp_get_hw_state;
 	intel_encoder->get_config = intel_dp_get_config;
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 5c8e260ca2bc..5ea1dc3f63bf 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -214,7 +214,8 @@  struct intel_encoder {
 	enum intel_output_type type;
 	enum port port;
 	unsigned int cloneable;
-	void (*hot_plug)(struct intel_encoder *);
+	bool (*hotplug)(struct intel_encoder *encoder,
+			struct intel_connector *connector);
 	enum intel_output_type (*compute_output_type)(struct intel_encoder *,
 						      struct intel_crtc_state *,
 						      struct drm_connector_state *);
@@ -1690,7 +1691,8 @@  int intel_dsi_dcs_init_backlight_funcs(struct intel_connector *intel_connector);
 void intel_dvo_init(struct drm_i915_private *dev_priv);
 /* intel_hotplug.c */
 void intel_hpd_poll_init(struct drm_i915_private *dev_priv);
-
+bool intel_encoder_hotplug(struct intel_encoder *encoder,
+			   struct intel_connector *connector);
 
 /* legacy fbdev emulation in intel_fbdev.c */
 #ifdef CONFIG_DRM_FBDEV_EMULATION
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index 691f15b59124..4a93cfd7a28e 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -2348,6 +2348,7 @@  void intel_hdmi_init(struct drm_i915_private *dev_priv,
 			 &intel_hdmi_enc_funcs, DRM_MODE_ENCODER_TMDS,
 			 "HDMI %c", port_name(port));
 
+	intel_encoder->hotplug = intel_encoder_hotplug;
 	intel_encoder->compute_config = intel_hdmi_compute_config;
 	if (HAS_PCH_SPLIT(dev_priv)) {
 		intel_encoder->disable = pch_disable_hdmi;
diff --git a/drivers/gpu/drm/i915/intel_hotplug.c b/drivers/gpu/drm/i915/intel_hotplug.c
index 875d5d218d5c..0191c7831a06 100644
--- a/drivers/gpu/drm/i915/intel_hotplug.c
+++ b/drivers/gpu/drm/i915/intel_hotplug.c
@@ -263,24 +263,25 @@  static void intel_hpd_irq_storm_reenable_work(struct work_struct *work)
 	intel_runtime_pm_put(dev_priv);
 }
 
-static bool intel_hpd_irq_event(struct drm_device *dev,
-				struct drm_connector *connector)
+bool intel_encoder_hotplug(struct intel_encoder *encoder,
+			   struct intel_connector *connector)
 {
+	struct drm_device *dev = connector->base.dev;
 	enum drm_connector_status old_status;
 
 	WARN_ON(!mutex_is_locked(&dev->mode_config.mutex));
-	old_status = connector->status;
+	old_status = connector->base.status;
 
-	connector->status = drm_helper_probe_detect(connector, NULL, false);
+	connector->base.status = drm_helper_probe_detect(&connector->base, NULL, false);
 
-	if (old_status == connector->status)
+	if (old_status == connector->base.status)
 		return false;
 
 	DRM_DEBUG_KMS("[CONNECTOR:%d:%s] status updated from %s to %s\n",
-		      connector->base.id,
-		      connector->name,
+		      connector->base.base.id,
+		      connector->base.name,
 		      drm_get_connector_status_name(old_status),
-		      drm_get_connector_status_name(connector->status));
+		      drm_get_connector_status_name(connector->base.status));
 
 	return true;
 }
@@ -370,10 +371,9 @@  static void i915_hotplug_work_func(struct work_struct *work)
 		if (hpd_event_bits & (1 << intel_encoder->hpd_pin)) {
 			DRM_DEBUG_KMS("Connector %s (pin %i) received hotplug event.\n",
 				      connector->name, intel_encoder->hpd_pin);
-			if (intel_encoder->hot_plug)
-				intel_encoder->hot_plug(intel_encoder);
-			if (intel_hpd_irq_event(dev, connector))
-				changed = true;
+
+			changed |= intel_encoder->hotplug(intel_encoder,
+							  intel_connector);
 		}
 	}
 	drm_connector_list_iter_end(&conn_iter);
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 2b8764897d68..5b1ad42ec446 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -1692,7 +1692,15 @@  static void intel_sdvo_enable_hotplug(struct intel_encoder *encoder)
 	struct intel_sdvo *intel_sdvo = to_sdvo(encoder);
 
 	intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_SET_ACTIVE_HOT_PLUG,
-			&intel_sdvo->hotplug_active, 2);
+			     &intel_sdvo->hotplug_active, 2);
+}
+
+static bool intel_sdvo_hotplug(struct intel_encoder *encoder,
+			       struct intel_connector *connector)
+{
+	intel_sdvo_enable_hotplug(encoder);
+
+	return intel_encoder_hotplug(encoder, connector);
 }
 
 static bool
@@ -2496,7 +2504,7 @@  intel_sdvo_dvi_init(struct intel_sdvo *intel_sdvo, int device)
 		/* Some SDVO devices have one-shot hotplug interrupts.
 		 * Ensure that they get re-enabled when an interrupt happens.
 		 */
-		intel_encoder->hot_plug = intel_sdvo_enable_hotplug;
+		intel_encoder->hotplug = intel_sdvo_hotplug;
 		intel_sdvo_enable_hotplug(intel_encoder);
 	} else {
 		intel_connector->polled = DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT;