[PATCH 2/4] drm/bridge: sii902x: Set output mode to HDMI or DVI according to EDID

[Jyri Sarha]

Set output mode to HDMI or DVI according to EDID HDMI signature.

Signed-off-by: Jyri Sarha <jsarha at ti.com>
---
 drivers/gpu/drm/bridge/sii902x.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/bridge/sii902x.c b/drivers/gpu/drm/bridge/sii902x.c
index 1afa000141d5..0e21fa419d27 100644
--- a/drivers/gpu/drm/bridge/sii902x.c
+++ b/drivers/gpu/drm/bridge/sii902x.c
@@ -181,11 +181,15 @@ static int sii902x_get_modes(struct drm_connector *connector)
 	struct sii902x *sii902x = connector_to_sii902x(connector);
 	u32 bus_format = MEDIA_BUS_FMT_RGB888_1X24;
 	struct edid *edid;
+	u8 output_mode = SII902X_SYS_CTRL_OUTPUT_DVI;
 	int num = 0, ret;
 
 	edid = drm_get_edid(connector, sii902x->i2cmux->adapter[0]);
 	drm_connector_update_edid_property(connector, edid);
 	if (edid) {
+	        if (drm_detect_hdmi_monitor(edid))
+			output_mode = SII902X_SYS_CTRL_OUTPUT_HDMI;
+
 		num = drm_add_edid_modes(connector, edid);
 		kfree(edid);
 	}
@@ -195,6 +199,11 @@ static int sii902x_get_modes(struct drm_connector *connector)
 	if (ret)
 		return ret;
 
+	ret = regmap_update_bits(sii902x->regmap, SII902X_SYS_CTRL_DATA,
+				 SII902X_SYS_CTRL_OUTPUT_MODE, output_mode);
+	if (ret)
+		return ret;
+
 	return num;
 }
 
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