[v2,8/9] drm/edid: Make version checks less convoluted

Commit Message

Ville Syrjälä Sept. 27, 2022, 5 p.m. UTC

From: Ville Syrjälä <[e-mail]>

Get rid of the confusing version_greater() stuff and
simply compare edid->revision directly everwhere. Half
the places already did it this way, and since we actually
reject any EDID with edid->version!=1 it's a perfectly
sane thing to do.

Reviewed-by: Jani Nikula <[e-mail]>
Signed-off-by: Ville Syrjälä <[e-mail]>
---
 drivers/gpu/drm/drm_edid.c | 25 ++++++++-----------------
 1 file changed, 8 insertions(+), 17 deletions(-)

Patch

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 1856560463a3..69485adcc80c 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -1572,15 +1572,6 @@  struct drm_edid {
 	const struct edid *edid;
 };
 
-static bool version_greater(const struct drm_edid *drm_edid,
-			    u8 version, u8 revision)
-{
-	const struct edid *edid = drm_edid->edid;
-
-	return edid->version > version ||
-		(edid->version == version && edid->revision > revision);
-}
-
 static int edid_hfeeodb_extension_block_count(const struct edid *edid);
 
 static int edid_hfeeodb_block_count(const struct edid *edid)
@@ -3652,7 +3643,7 @@  do_inferred_modes(const struct detailed_timing *timing, void *c)
 						  closure->drm_edid,
 						  timing);
 
-	if (!version_greater(closure->drm_edid, 1, 1))
+	if (closure->drm_edid->edid->revision < 2)
 		return; /* GTF not defined yet */
 
 	switch (range->flags) {
@@ -3667,7 +3658,7 @@  do_inferred_modes(const struct detailed_timing *timing, void *c)
 							  timing);
 		break;
 	case DRM_EDID_CVT_SUPPORT_FLAG:
-		if (!version_greater(closure->drm_edid, 1, 3))
+		if (closure->drm_edid->edid->revision < 4)
 			break;
 
 		closure->modes += drm_cvt_modes_for_range(closure->connector,
@@ -3688,7 +3679,7 @@  static int add_inferred_modes(struct drm_connector *connector,
 		.drm_edid = drm_edid,
 	};
 
-	if (version_greater(drm_edid, 1, 0))
+	if (drm_edid->edid->revision >= 1)
 		drm_for_each_detailed_block(drm_edid, do_inferred_modes, &closure);
 
 	return closure.modes;
@@ -3765,7 +3756,7 @@  static int add_established_modes(struct drm_connector *connector,
 		}
 	}
 
-	if (version_greater(drm_edid, 1, 0))
+	if (edid->revision >= 1)
 		drm_for_each_detailed_block(drm_edid, do_established_modes,
 					    &closure);
 
@@ -3820,7 +3811,7 @@  static int add_standard_modes(struct drm_connector *connector,
 		}
 	}
 
-	if (version_greater(drm_edid, 1, 0))
+	if (drm_edid->edid->revision >= 1)
 		drm_for_each_detailed_block(drm_edid, do_standard_modes,
 					    &closure);
 
@@ -3900,7 +3891,7 @@  add_cvt_modes(struct drm_connector *connector, const struct drm_edid *drm_edid)
 		.drm_edid = drm_edid,
 	};
 
-	if (version_greater(drm_edid, 1, 2))
+	if (drm_edid->edid->revision >= 3)
 		drm_for_each_detailed_block(drm_edid, do_cvt_mode, &closure);
 
 	/* XXX should also look for CVT codes in VTB blocks */
@@ -3955,7 +3946,7 @@  static int add_detailed_modes(struct drm_connector *connector,
 		.quirks = quirks,
 	};
 
-	if (version_greater(drm_edid, 1, 3))
+	if (drm_edid->edid->revision >= 4)
 		closure.preferred = true; /* first detailed timing is always preferred */
 	else
 		closure.preferred =
@@ -6144,7 +6135,7 @@  static void drm_get_monitor_range(struct drm_connector *connector,
 		.drm_edid = drm_edid,
 	};
 
-	if (!version_greater(drm_edid, 1, 3))
+	if (drm_edid->edid->revision < 4)
 		return;
 
 	if (!(drm_edid->edid->features & DRM_EDID_FEATURE_CONTINUOUS_FREQ))