Attachment 35745 Details for Bug 27667 – test.patch

[patch] test.patch

test.patch (text/plain), 1.10 KB, created by Li Peng on 2010-05-18 20:40:45 UTC

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Creator: Li Peng

Created: 2010-05-18 20:40:45 UTC

Size: 1.10 KB

patch

obsolete

>diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
>index 7752b10..7a0316f 100644
>--- a/drivers/gpu/drm/i915/intel_display.c
>+++ b/drivers/gpu/drm/i915/intel_display.c
>@@ -4035,27 +4035,29 @@ static void intel_idle_update(struct work_struct *work)
> 	struct drm_device *dev = dev_priv->dev;
> 	struct drm_crtc *crtc;
> 	struct intel_crtc *intel_crtc;
>+	int enabled = 0;
> 
> 	if (!i915_powersave)
> 		return;
> 
> 	mutex_lock(&dev->struct_mutex);
> 
>-	if (IS_I945G(dev) || IS_I945GM(dev)) {
>-		DRM_DEBUG_DRIVER("enable memory self refresh on 945\n");
>-		I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN_MASK | FW_BLC_SELF_EN);
>-	}
>-
> 	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
> 		/* Skip inactive CRTCs */
> 		if (!crtc->fb)
> 			continue;
> 
>+		enabled++;
> 		intel_crtc = to_intel_crtc(crtc);
> 		if (!intel_crtc->busy)
> 			intel_decrease_pllclock(crtc);
> 	}
> 
>+	if ((enabled == 1) && (IS_I945G(dev) || IS_I945GM(dev))) {
>+		DRM_DEBUG_DRIVER("enable memory self refresh on 945\n");
>+		I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN_MASK | FW_BLC_SELF_EN);
>+	}
>+
> 	mutex_unlock(&dev->struct_mutex);
> }
>

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