Use the DRM_DEBUG_KMS macro definition to print the debug info for
the LVDS.
Signed-off-by: Zhao Yakui <yakui.z...@intel.com>
---
drivers/gpu/drm/i915/intel_lvds.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
Index: linux-2.6/drivers/gpu/drm/i915/intel_lvds.c
===================================================================
--- linux-2.6.orig/drivers/gpu/drm/i915/intel_lvds.c 2009-06-02
13:14:19.000000000 +0800
+++ linux-2.6/drivers/gpu/drm/i915/intel_lvds.c 2009-06-02 13:26:37.000000000
+0800
@@ -42,6 +42,7 @@
*
* \param level backlight level, from 0 to intel_lvds_get_max_backlight().
*/
+#define I915_LVDS "i915_lvds"
static void intel_lvds_set_backlight(struct drm_device *dev, int level)
{
struct drm_i915_private *dev_priv = dev->dev_private;
@@ -386,7 +387,8 @@
static int __init intel_no_lvds_dmi_callback(const struct dmi_system_id *id)
{
- DRM_DEBUG("Skipping LVDS initialization for %s\n", id->ident);
+ DRM_DEBUG_KMS(I915_LVDS, "Skipping LVDS initialization for %s\n",
+ id->ident);
return 1;
}
@@ -497,6 +499,7 @@
* Attempt to get the fixed panel mode from DDC. Assume that the
* preferred mode is the right one.
*/
+ DRM_DEBUG_KMS(I915_LVDS, "Attempting to get the fixed panel mode\n");
intel_ddc_get_modes(intel_output);
list_for_each_entry(scan, &connector->probed_modes, head) {
@@ -509,6 +512,7 @@
}
mutex_unlock(&dev->mode_config.mutex);
}
+ DRM_DEBUG_KMS(I915_LVDS, "Failure in EDID, fall back to VBT\n");
/* Failed to get EDID, what about VBT? */
if (dev_priv->lfp_lvds_vbt_mode) {
mutex_lock(&dev->mode_config.mutex);
@@ -527,6 +531,8 @@
* on. If so, assume that whatever is currently programmed is the
* correct mode.
*/
+ DRM_DEBUG_KMS(I915_LVDS, "Fall back to check if the panel is "
+ "turned on\n");
lvds = I915_READ(LVDS);
pipe = (lvds & LVDS_PIPEB_SELECT) ? 1 : 0;
crtc = intel_get_crtc_from_pipe(dev, pipe);
@@ -549,7 +555,7 @@
return;
failed:
- DRM_DEBUG("No LVDS modes found, disabling.\n");
+ DRM_DEBUG_KMS(I915_LVDS, "No LVDS modes found, disabling.\n");
if (intel_output->ddc_bus)
intel_i2c_destroy(intel_output->ddc_bus);
drm_connector_cleanup(connector);
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