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path: root/drivers/gpu/drm/exynos/exynos_drm_hdmi.c
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Diffstat (limited to 'drivers/gpu/drm/exynos/exynos_drm_hdmi.c')
-rw-r--r--drivers/gpu/drm/exynos/exynos_drm_hdmi.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_hdmi.c b/drivers/gpu/drm/exynos/exynos_drm_hdmi.c
index 28644539b305..7c27df03c9ff 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_hdmi.c
@@ -124,9 +124,21 @@ static struct edid *drm_hdmi_get_edid(struct device *dev,
static int drm_hdmi_check_timing(struct device *dev, void *timing)
{
struct drm_hdmi_context *ctx = to_context(dev);
+ int ret = 0;
DRM_DEBUG_KMS("%s\n", __FILE__);
+ /*
+ * Both, mixer and hdmi should be able to handle the requested mode.
+ * If any of the two fails, return mode as BAD.
+ */
+
+ if (mixer_ops && mixer_ops->check_timing)
+ ret = mixer_ops->check_timing(ctx->mixer_ctx->ctx, timing);
+
+ if (ret)
+ return ret;
+
if (hdmi_ops && hdmi_ops->check_timing)
return hdmi_ops->check_timing(ctx->hdmi_ctx->ctx, timing);