From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Fri, 23 Jan 2015 05:00:31 +0000 (+0100)
Subject: drm/i915: Use symbolic irqreturn for ->hpd_pulse
X-Git-Tag: firefly_0821_release~176^2~1915^2~35^2~127
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=b2c5c181ed18490648a02f8c7d562a3b9e8b96de;p=firefly-linux-kernel-4.4.55.git

drm/i915: Use symbolic irqreturn for ->hpd_pulse

Self-explanatory code is better code.

Cc: Dave Airlie <airlied@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 25b2299bc534..2399eaed2ca3 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -879,7 +879,7 @@ static void i915_digport_work_func(struct work_struct *work)
 		container_of(work, struct drm_i915_private, dig_port_work);
 	u32 long_port_mask, short_port_mask;
 	struct intel_digital_port *intel_dig_port;
-	int i, ret;
+	int i;
 	u32 old_bits = 0;
 
 	spin_lock_irq(&dev_priv->irq_lock);
@@ -903,9 +903,11 @@ static void i915_digport_work_func(struct work_struct *work)
 			valid = true;
 
 		if (valid) {
+			enum irqreturn ret;
+
 			ret = intel_dig_port->hpd_pulse(intel_dig_port, long_hpd);
-			if (ret == true) {
-				/* if we get true fallback to old school hpd */
+			if (ret == IRQ_NONE) {
+				/* fall back to old school hpd */
 				old_bits |= (1 << intel_dig_port->base.hpd_pin);
 			}
 		}
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index b38d737b6618..081eb3687190 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -4421,7 +4421,7 @@ intel_dp_hot_plug(struct intel_encoder *intel_encoder)
 	return;
 }
 
-bool
+enum irqreturn
 intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port, bool long_hpd)
 {
 	struct intel_dp *intel_dp = &intel_dig_port->dp;
@@ -4429,7 +4429,7 @@ intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port, bool long_hpd)
 	struct drm_device *dev = intel_dig_port->base.base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	enum intel_display_power_domain power_domain;
-	bool ret = true;
+	enum irqreturn ret = IRQ_NONE;
 
 	if (intel_dig_port->base.type != INTEL_OUTPUT_EDP)
 		intel_dig_port->base.type = INTEL_OUTPUT_DISPLAYPORT;
@@ -4488,7 +4488,9 @@ intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port, bool long_hpd)
 			drm_modeset_unlock(&dev->mode_config.connection_mutex);
 		}
 	}
-	ret = false;
+
+	ret = IRQ_HANDLED;
+
 	goto put_power;
 mst_fail:
 	/* if we were in MST mode, and device is not there get out of MST mode */
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index e957d4d938e7..04182ddc0927 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -650,7 +650,7 @@ struct intel_digital_port {
 	u32 saved_port_bits;
 	struct intel_dp dp;
 	struct intel_hdmi hdmi;
-	bool (*hpd_pulse)(struct intel_digital_port *, bool);
+	enum irqreturn (*hpd_pulse)(struct intel_digital_port *, bool);
 };
 
 struct intel_dp_mst_encoder {
@@ -1008,8 +1008,8 @@ int intel_dp_sink_crc(struct intel_dp *intel_dp, u8 *crc);
 bool intel_dp_compute_config(struct intel_encoder *encoder,
 			     struct intel_crtc_state *pipe_config);
 bool intel_dp_is_edp(struct drm_device *dev, enum port port);
-bool intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port,
-			bool long_hpd);
+enum irqreturn intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port,
+				  bool long_hpd);
 void intel_edp_backlight_on(struct intel_dp *intel_dp);
 void intel_edp_backlight_off(struct intel_dp *intel_dp);
 void intel_edp_panel_vdd_on(struct intel_dp *intel_dp);