[Intel-gfx] [PATCH] drm/i915/dgfx: avoid opregion calls and messages

[Lucas De Marchi]

This avoids the annoying message
"Failed to get panel details from OpRegion (-19)" while initializing.
On DGFX there is no access to OpRegion, so just avoid any calls related
to it.

Signed-off-by: Lucas De Marchi <lucas.demarchi at intel.com>
---
 drivers/gpu/drm/i915/display/intel_opregion.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_opregion.c b/drivers/gpu/drm/i915/display/intel_opregion.c
index cc6b00959586..daadad046810 100644
--- a/drivers/gpu/drm/i915/display/intel_opregion.c
+++ b/drivers/gpu/drm/i915/display/intel_opregion.c
@@ -1006,6 +1006,10 @@ intel_opregion_get_panel_type(struct drm_i915_private *dev_priv)
 	u32 panel_details;
 	int ret;
 
+	/* No access to OpRegion */
+	if (IS_DGFX(dev_priv))
+		return -ENODEV;
+
 	ret = swsci(dev_priv, SWSCI_GBDA_PANEL_DETAILS, 0x0, &panel_details);
 	if (ret) {
 		drm_dbg_kms(&dev_priv->drm,
-- 
2.25.1