From: Ville Syrjälä <ville.syrj...@linux.intel.com>
Let's introduce is_detailed_timing_descritor() as the opposite
counterpart of is_display_descriptor().
Cc: Allen Chen <allen.c...@ite.com.tw>
Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
---
drivers/gpu/drm/drm_edid.c | 42 ++++++++++++++++++++++----------------
1 file changed, 24 insertions(+), 18 deletions(-)
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 96ae1fde4ce2..d6bce58b27ac 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -2202,6 +2202,11 @@ static bool is_display_descriptor(const u8 d[18], u8 tag)
d[2] == 0x00 && d[3] == tag;
}
+static bool is_detailed_timing_descriptor(const u8 d[18])
+{
+ return d[0] != 0x00 || d[1] != 0x00;
+}
+
typedef void detailed_cb(struct detailed_timing *timing, void *closure);
static void
@@ -3101,27 +3106,28 @@ do_detailed_mode(struct detailed_timing *timing, void
*c)
struct detailed_mode_closure *closure = c;
struct drm_display_mode *newmode;
- if (timing->pixel_clock) {
- newmode = drm_mode_detailed(closure->connector->dev,
- closure->edid, timing,
- closure->quirks);
- if (!newmode)
- return;
+ if (!is_detailed_timing_descriptor((const u8 *)timing))
+ return;
+
+ newmode = drm_mode_detailed(closure->connector->dev,
+ closure->edid, timing,
+ closure->quirks);
+ if (!newmode)
+ return;
- if (closure->preferred)
- newmode->type |= DRM_MODE_TYPE_PREFERRED;
+ if (closure->preferred)
+ newmode->type |= DRM_MODE_TYPE_PREFERRED;
- /*
- * Detailed modes are limited to 10kHz pixel clock resolution,
- * so fix up anything that looks like CEA/HDMI mode, but the
clock
- * is just slightly off.
- */
- fixup_detailed_cea_mode_clock(newmode);
+ /*
+ * Detailed modes are limited to 10kHz pixel clock resolution,
+ * so fix up anything that looks like CEA/HDMI mode, but the clock
+ * is just slightly off.
+ */
+ fixup_detailed_cea_mode_clock(newmode);
- drm_mode_probed_add(closure->connector, newmode);
- closure->modes++;
- closure->preferred = false;
- }
+ drm_mode_probed_add(closure->connector, newmode);
+ closure->modes++;
+ closure->preferred = false;
}
/*
--
2.24.1
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