diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c
index d8cc81f..19ce750 100644
--- a/drivers/gpu/drm/tegra/hdmi.c
+++ b/drivers/gpu/drm/tegra/hdmi.c
@@ -40,6 +40,7 @@
 	struct host1x_client client;
 	struct tegra_output output;
 	struct device *dev;
+	bool enabled;
 
 	struct regulator *vdd;
 	struct regulator *pll;
@@ -699,6 +700,9 @@
 	int retries = 1000;
 	int err;
 
+	if (hdmi->enabled)
+		return 0;
+
 	hdmi->dvi = !tegra_output_is_hdmi(output);
 
 	pclk = mode->clock * 1000;
@@ -906,6 +910,8 @@
 
 	/* TODO: add HDCP support */
 
+	hdmi->enabled = true;
+
 	return 0;
 }
 
@@ -913,10 +919,15 @@
 {
 	struct tegra_hdmi *hdmi = to_hdmi(output);
 
+	if (!hdmi->enabled)
+		return 0;
+
 	reset_control_assert(hdmi->rst);
 	clk_disable(hdmi->clk);
 	regulator_disable(hdmi->pll);
 
+	hdmi->enabled = false;
+
 	return 0;
 }