[PATCH v7 8/9] drm/mediatek: hdmi: issue notifications

[Philipp Zabel]

Issue hot-plug detection, EDID update, and ELD update notifications
from the CEC and HDMI drivers.

Signed-off-by: Philipp Zabel <p.zabel at pengutronix.de>
---
 drivers/gpu/drm/mediatek/mtk_cec.c  | 11 +++++++++++
 drivers/gpu/drm/mediatek/mtk_hdmi.c |  3 +++
 2 files changed, 14 insertions(+)

diff --git a/drivers/gpu/drm/mediatek/mtk_cec.c b/drivers/gpu/drm/mediatek/mtk_cec.c
index 7a3eb8c..f78a73c 100644
--- a/drivers/gpu/drm/mediatek/mtk_cec.c
+++ b/drivers/gpu/drm/mediatek/mtk_cec.c
@@ -13,6 +13,7 @@
  */
 #include <linux/clk.h>
 #include <linux/delay.h>
+#include <linux/hdmi-notifier.h>
 #include <linux/io.h>
 #include <linux/interrupt.h>
 #include <linux/platform_device.h>
@@ -105,6 +106,12 @@ void mtk_cec_set_hpd_event(struct device *dev,
 	cec->hdmi_dev = hdmi_dev;
 	cec->hpd_event = hpd_event;
 	spin_unlock_irqrestore(&cec->lock, flags);
+
+	/* Initial notification event to set jack state */
+	if (mtk_cec_hpd_high(dev))
+		hdmi_event_connect(hdmi_dev);
+	else
+		hdmi_event_disconnect(hdmi_dev);
 }
 
 bool mtk_cec_hpd_high(struct device *dev)
@@ -179,6 +186,10 @@ static irqreturn_t mtk_cec_htplg_isr_thread(int irq, void *arg)
 	if (cec->hpd != hpd) {
 		dev_dbg(dev, "hotplug event! cur hpd = %d, hpd = %d\n",
 			cec->hpd, hpd);
+		if (hpd)
+			hdmi_event_connect(cec->hdmi_dev);
+		else
+			hdmi_event_disconnect(cec->hdmi_dev);
 		cec->hpd = hpd;
 		mtk_cec_hpd_event(cec, hpd);
 	}
diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c
index 21ea430..06e3811 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi.c
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c
@@ -20,6 +20,7 @@
 #include <linux/clk.h>
 #include <linux/delay.h>
 #include <linux/hdmi.h>
+#include <linux/hdmi-notifier.h>
 #include <linux/i2c.h>
 #include <linux/io.h>
 #include <linux/kernel.h>
@@ -1226,9 +1227,11 @@ static int mtk_hdmi_conn_get_modes(struct drm_connector *conn)
 	hdmi->dvi_mode = !drm_detect_monitor_audio(edid);
 
 	drm_mode_connector_update_edid_property(conn, edid);
+	hdmi_event_new_edid(hdmi->dev, edid, sizeof(*edid));
 
 	ret = drm_add_edid_modes(conn, edid);
 	drm_edid_to_eld(conn, edid);
+	hdmi_event_new_eld(hdmi->dev, conn->eld);
 	kfree(edid);
 	return ret;
 }
-- 
2.8.0.rc3