summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--drivers/gpu/drm/drm_edid.c29
-rw-r--r--include/drm/drm_edid.h12
2 files changed, 30 insertions, 11 deletions
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index ebab862b8b1a..c18ec866678d 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -3424,10 +3424,6 @@ static struct drm_display_mode *drm_mode_detailed(struct drm_connector *connecto
connector->base.id, connector->name);
return NULL;
}
- if (!(pt->misc & DRM_EDID_PT_SEPARATE_SYNC)) {
- drm_dbg_kms(dev, "[CONNECTOR:%d:%s] Composite sync not supported\n",
- connector->base.id, connector->name);
- }
/* it is incorrect if hsync/vsync width is zero */
if (!hsync_pulse_width || !vsync_pulse_width) {
@@ -3474,10 +3470,27 @@ static struct drm_display_mode *drm_mode_detailed(struct drm_connector *connecto
if (info->quirks & EDID_QUIRK_DETAILED_SYNC_PP) {
mode->flags |= DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC;
} else {
- mode->flags |= (pt->misc & DRM_EDID_PT_HSYNC_POSITIVE) ?
- DRM_MODE_FLAG_PHSYNC : DRM_MODE_FLAG_NHSYNC;
- mode->flags |= (pt->misc & DRM_EDID_PT_VSYNC_POSITIVE) ?
- DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC;
+ switch (pt->misc & DRM_EDID_PT_SYNC_MASK) {
+ case DRM_EDID_PT_ANALOG_CSYNC:
+ case DRM_EDID_PT_BIPOLAR_ANALOG_CSYNC:
+ drm_dbg_kms(dev, "[CONNECTOR:%d:%s] Analog composite sync!\n",
+ connector->base.id, connector->name);
+ mode->flags |= DRM_MODE_FLAG_CSYNC | DRM_MODE_FLAG_NCSYNC;
+ break;
+ case DRM_EDID_PT_DIGITAL_CSYNC:
+ drm_dbg_kms(dev, "[CONNECTOR:%d:%s] Digital composite sync!\n",
+ connector->base.id, connector->name);
+ mode->flags |= DRM_MODE_FLAG_CSYNC;
+ mode->flags |= (pt->misc & DRM_EDID_PT_HSYNC_POSITIVE) ?
+ DRM_MODE_FLAG_PCSYNC : DRM_MODE_FLAG_NCSYNC;
+ break;
+ case DRM_EDID_PT_DIGITAL_SEPARATE_SYNC:
+ mode->flags |= (pt->misc & DRM_EDID_PT_HSYNC_POSITIVE) ?
+ DRM_MODE_FLAG_PHSYNC : DRM_MODE_FLAG_NHSYNC;
+ mode->flags |= (pt->misc & DRM_EDID_PT_VSYNC_POSITIVE) ?
+ DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC;
+ break;
+ }
}
set_size:
diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h
index 70ae6c290bdc..571885d32907 100644
--- a/include/drm/drm_edid.h
+++ b/include/drm/drm_edid.h
@@ -61,9 +61,15 @@ struct std_timing {
u8 vfreq_aspect;
} __attribute__((packed));
-#define DRM_EDID_PT_HSYNC_POSITIVE (1 << 1)
-#define DRM_EDID_PT_VSYNC_POSITIVE (1 << 2)
-#define DRM_EDID_PT_SEPARATE_SYNC (3 << 3)
+#define DRM_EDID_PT_SYNC_MASK (3 << 3)
+# define DRM_EDID_PT_ANALOG_CSYNC (0 << 3)
+# define DRM_EDID_PT_BIPOLAR_ANALOG_CSYNC (1 << 3)
+# define DRM_EDID_PT_DIGITAL_CSYNC (2 << 3)
+# define DRM_EDID_PT_CSYNC_ON_RGB (1 << 1) /* analog csync only */
+# define DRM_EDID_PT_CSYNC_SERRATE (1 << 2)
+# define DRM_EDID_PT_DIGITAL_SEPARATE_SYNC (3 << 3)
+# define DRM_EDID_PT_HSYNC_POSITIVE (1 << 1) /* also digital csync */
+# define DRM_EDID_PT_VSYNC_POSITIVE (1 << 2)
#define DRM_EDID_PT_STEREO (1 << 5)
#define DRM_EDID_PT_INTERLACED (1 << 7)