[Intel-xe] [PATCH v3 05/29] drm/i915: Re-order if/else ladder in intel_detect_pch()

[Lucas De Marchi]

Follow the convention of checking the last platform first and reword the
comment to convey there are more platforms than just DG1.

Reviewed-by: Matt Roper <matthew.d.roper at intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi at intel.com>
---
 drivers/gpu/drm/i915/soc/intel_pch.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/soc/intel_pch.c b/drivers/gpu/drm/i915/soc/intel_pch.c
index 19a8f27c404e..dfffdfa50b97 100644
--- a/drivers/gpu/drm/i915/soc/intel_pch.c
+++ b/drivers/gpu/drm/i915/soc/intel_pch.c
@@ -218,13 +218,16 @@ void intel_detect_pch(struct drm_i915_private *dev_priv)
 	unsigned short id;
 	enum intel_pch pch_type;
 
-	/* DG1 has south engine display on the same PCI device */
-	if (IS_DG1(dev_priv)) {
-		dev_priv->pch_type = PCH_DG1;
-		return;
-	} else if (IS_DG2(dev_priv)) {
+	/*
+	 * South display engine on the same PCI device: just assign the fake
+	 * PCH.
+	 */
+	if (IS_DG2(dev_priv)) {
 		dev_priv->pch_type = PCH_DG2;
 		return;
+	} else if (IS_DG1(dev_priv)) {
+		dev_priv->pch_type = PCH_DG1;
+		return;
 	}
 
 	/*
-- 
2.40.1