4 files changed, 19 insertions, 0 deletions

diff --git a/drivers/gpu/drm/tegra/Kconfig b/drivers/gpu/drm/tegra/Kconfig
index dc58ab140151..cf54847a8bd1 100644
--- a/drivers/gpu/drm/tegra/Kconfig
+++ b/drivers/gpu/drm/tegra/Kconfig
@@ -9,6 +9,7 @@ config DRM_TEGRA
 	select DRM_PANEL
 	select TEGRA_HOST1X
 	select IOMMU_IOVA if IOMMU_SUPPORT
+	select CEC_CORE if CEC_NOTIFIER
 	help
 	  Choose this option if you have an NVIDIA Tegra SoC.
 
diff --git a/drivers/gpu/drm/tegra/drm.h b/drivers/gpu/drm/tegra/drm.h
index 9bb6e8ebe40c..ddae331ad8b6 100644
--- a/drivers/gpu/drm/tegra/drm.h
+++ b/drivers/gpu/drm/tegra/drm.h
@@ -119,6 +119,8 @@ void *tegra_drm_alloc(struct tegra_drm *tegra, size_t size, dma_addr_t *iova);
 void tegra_drm_free(struct tegra_drm *tegra, size_t size, void *virt,
 		    dma_addr_t iova);
 
+struct cec_notifier;
+
 struct tegra_output {
 	struct device_node *of_node;
 	struct device *dev;
@@ -126,6 +128,7 @@ struct tegra_output {
 	struct drm_panel *panel;
 	struct i2c_adapter *ddc;
 	const struct edid *edid;
+	struct cec_notifier *notifier;
 	unsigned int hpd_irq;
 	int hpd_gpio;
 	enum of_gpio_flags hpd_gpio_flags;
diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c
index a4e9c769fc7a..6434b3d3d1ba 100644
--- a/drivers/gpu/drm/tegra/hdmi.c
+++ b/drivers/gpu/drm/tegra/hdmi.c
@@ -22,6 +22,8 @@
 
 #include <sound/hda_verbs.h>
 
+#include <media/cec-notifier.h>
+
 #include "hdmi.h"
 #include "drm.h"
 #include "dc.h"
@@ -1721,6 +1723,10 @@ static int tegra_hdmi_probe(struct platform_device *pdev)
 		return PTR_ERR(hdmi->vdd);
 	}
 
+	hdmi->output.notifier = cec_notifier_get(&pdev->dev);
+	if (hdmi->output.notifier == NULL)
+		return -ENOMEM;
+
 	hdmi->output.dev = &pdev->dev;
 
 	err = tegra_output_probe(&hdmi->output);
@@ -1779,6 +1785,9 @@ static int tegra_hdmi_remove(struct platform_device *pdev)
 
 	tegra_output_remove(&hdmi->output);
 
+	if (hdmi->output.notifier)
+		cec_notifier_put(hdmi->output.notifier);
+
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/tegra/output.c b/drivers/gpu/drm/tegra/output.c
index 595d1ec3e02e..1cfbacea8113 100644
--- a/drivers/gpu/drm/tegra/output.c
+++ b/drivers/gpu/drm/tegra/output.c
@@ -11,6 +11,8 @@
 #include <drm/drm_panel.h>
 #include "drm.h"
 
+#include <media/cec-notifier.h>
+
 int tegra_output_connector_get_modes(struct drm_connector *connector)
 {
 	struct tegra_output *output = connector_to_output(connector);
@@ -32,6 +34,7 @@ int tegra_output_connector_get_modes(struct drm_connector *connector)
 	else if (output->ddc)
 		edid = drm_get_edid(connector, output->ddc);
 
+	cec_notifier_set_phys_addr_from_edid(output->notifier, edid);
 	drm_mode_connector_update_edid_property(connector, edid);
 
 	if (edid) {
@@ -68,6 +71,9 @@ tegra_output_connector_detect(struct drm_connector *connector, bool force)
 			status = connector_status_connected;
 	}
 
+	if (status != connector_status_connected)
+		cec_notifier_phys_addr_invalidate(output->notifier);
+
 	return status;
 }