vmwgfx: Make the preferred autofit mode have a 60Hz vrefresh

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index f9a0f980c300ff959805394987f9448c5e3e13ef..1cebf64f11423d5ae603307bdb45f3725bb121ca 100644 (file)
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -1662,6 +1662,28 @@ static struct drm_display_mode vmw_kms_connector_builtin[] = {
        { DRM_MODE("", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) },
 };
 
+/**
+ * vmw_guess_mode_timing - Provide fake timings for a
+ * 60Hz vrefresh mode.
+ *
+ * @mode - Pointer to a struct drm_display_mode with hdisplay and vdisplay
+ * members filled in.
+ */
+static void vmw_guess_mode_timing(struct drm_display_mode *mode)
+{
+       mode->hsync_start = mode->hdisplay + 50;
+       mode->hsync_end = mode->hsync_start + 50;
+       mode->htotal = mode->hsync_end + 50;
+
+       mode->vsync_start = mode->vdisplay + 50;
+       mode->vsync_end = mode->vsync_start + 50;
+       mode->vtotal = mode->vsync_end + 50;
+
+       mode->clock = (u32)mode->htotal * (u32)mode->vtotal / 100 * 6;
+       mode->vrefresh = drm_mode_vrefresh(mode);
+}
+
+
 int vmw_du_connector_fill_modes(struct drm_connector *connector,
                                uint32_t max_width, uint32_t max_height)
 {
@@ -1684,7 +1706,7 @@ int vmw_du_connector_fill_modes(struct drm_connector *connector,
                        return 0;
                mode->hdisplay = du->pref_width;
                mode->vdisplay = du->pref_height;
-               mode->vrefresh = drm_mode_vrefresh(mode);
+               vmw_guess_mode_timing(mode);
                if (vmw_kms_validate_mode_vram(dev_priv, mode->hdisplay * 2,
                                               mode->vdisplay)) {
                        drm_mode_probed_add(connector, mode);