DRM/igd: remove EOS feature

Commit Message

Shaohua Li Oct. 14, 2009, 9:19 a.m. UTC

None

Patch

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 0887581..36d652d 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -593,27 +593,6 @@  irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS)
 
 			I915_WRITE(PORT_HOTPLUG_STAT, hotplug_status);
 			I915_READ(PORT_HOTPLUG_STAT);
-
-			/* EOS interrupts occurs */
-			if (IS_IGD(dev) &&
-				(hotplug_status & CRT_EOS_INT_STATUS)) {
-				u32 temp;
-
-				DRM_DEBUG_DRIVER("EOS interrupt occurs\n");
-				/* status is already cleared */
-				temp = I915_READ(ADPA);
-				temp &= ~ADPA_DAC_ENABLE;
-				I915_WRITE(ADPA, temp);
-
-				temp = I915_READ(PORT_HOTPLUG_EN);
-				temp &= ~CRT_EOS_INT_EN;
-				I915_WRITE(PORT_HOTPLUG_EN, temp);
-
-				temp = I915_READ(PORT_HOTPLUG_STAT);
-				if (temp & CRT_EOS_INT_STATUS)
-					I915_WRITE(PORT_HOTPLUG_STAT,
-						CRT_EOS_INT_STATUS);
-			}
 		}
 
 		I915_WRITE(IIR, iir);
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 381cd88..921b5eb 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -852,7 +852,6 @@ 
 #define   SDVOB_HOTPLUG_INT_EN			(1 << 26)
 #define   SDVOC_HOTPLUG_INT_EN			(1 << 25)
 #define   TV_HOTPLUG_INT_EN			(1 << 18)
-#define   CRT_EOS_INT_EN			(1 << 10)
 #define   CRT_HOTPLUG_INT_EN			(1 << 9)
 #define   CRT_HOTPLUG_FORCE_DETECT		(1 << 3)
 #define CRT_HOTPLUG_ACTIVATION_PERIOD_32	(0 << 8)
@@ -887,7 +886,6 @@ 
 #define   DPC_HOTPLUG_INT_STATUS		(1 << 28)
 #define   HDMID_HOTPLUG_INT_STATUS		(1 << 27)
 #define   DPD_HOTPLUG_INT_STATUS		(1 << 27)
-#define   CRT_EOS_INT_STATUS			(1 << 12)
 #define   CRT_HOTPLUG_INT_STATUS		(1 << 11)
 #define   TV_HOTPLUG_INT_STATUS			(1 << 10)
 #define   CRT_HOTPLUG_MONITOR_MASK		(3 << 8)
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index 9b48a44..0864a2c 100644
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -64,34 +64,6 @@  static void intel_crt_dpms(struct drm_encoder *encoder, int mode)
 	}
 
 	I915_WRITE(reg, temp);
-
-	if (IS_IGD(dev)) {
-		if (mode == DRM_MODE_DPMS_OFF) {
-			/* turn off DAC */
-			temp = I915_READ(PORT_HOTPLUG_EN);
-			temp &= ~CRT_EOS_INT_EN;
-			I915_WRITE(PORT_HOTPLUG_EN, temp);
-
-			temp = I915_READ(PORT_HOTPLUG_STAT);
-			if (temp & CRT_EOS_INT_STATUS)
-				I915_WRITE(PORT_HOTPLUG_STAT,
-					CRT_EOS_INT_STATUS);
-		} else {
-			/* turn on DAC. EOS interrupt must be enabled after DAC
-			 * is enabled, so it sounds not good to enable it in
-			 * i915_driver_irq_postinstall()
-			 * wait 12.5ms after DAC is enabled
-			 */
-			msleep(13);
-			temp = I915_READ(PORT_HOTPLUG_STAT);
-			if (temp & CRT_EOS_INT_STATUS)
-				I915_WRITE(PORT_HOTPLUG_STAT,
-					CRT_EOS_INT_STATUS);
-			temp = I915_READ(PORT_HOTPLUG_EN);
-			temp |= CRT_EOS_INT_EN;
-			I915_WRITE(PORT_HOTPLUG_EN, temp);
-		}
-	}
 }
 
 static int intel_crt_mode_valid(struct drm_connector *connector,