[PATCH v5 5/5] drm: rockchip: add fixed screen size DVI-D support for rk3066 hdmi

Johan Jonker
2019-03-21T00:15:07Z

Add fixed screen size DVI-D support
for rk3066 hdmi with an extra patch.

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
---
drivers/gpu/drm/rockchip/rk3066_hdmi.c | 25 ++++++++++++++++++++++++-
1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/rockchip/rk3066_hdmi.c b/drivers/gpu/drm/rockchip/rk3066_hdmi.c
index ff8f86152..f656da769 100644
--- a/drivers/gpu/drm/rockchip/rk3066_hdmi.c
+++ b/drivers/gpu/drm/rockchip/rk3066_hdmi.c
@@ -349,11 +349,12 @@ static int rk3066_hdmi_setup(struct rk3066_hdmi *hdmi,
if (hdmi->hdmi_data.sink_is_hdmi) {
hdmi_modb(hdmi, HDMI_HDCP_CTRL, HDMI_VIDEO_MODE_MASK,
HDMI_VIDEO_MODE_HDMI);
- rk3066_hdmi_config_avi(hdmi, mode);
} else {
hdmi_modb(hdmi, HDMI_HDCP_CTRL, HDMI_VIDEO_MODE_MASK, 0);
}

+ rk3066_hdmi_config_avi(hdmi, mode);
+
rk3066_hdmi_config_phy(hdmi);

rk3066_hdmi_set_power_mode(hdmi, HDMI_SYS_POWER_MODE_E);
@@ -462,15 +463,26 @@ rk3066_hdmi_connector_detect(struct drm_connector *connector, bool force)
connector_status_connected : connector_status_disconnected;
}

+static const struct drm_display_mode edid_cea_modes[] = {
+ /* 4 - 1280x720@60Hz 16:9 */
+ { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 1390,
+ 1430, 1650, 0, 720, 725, 730, 750, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
+ .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
+};
+
static int rk3066_hdmi_connector_get_modes(struct drm_connector *connector)
{
struct rk3066_hdmi *hdmi = to_rk3066_hdmi(connector);
+ struct drm_display_mode *mode = NULL;
struct edid *edid;
int ret = 0;

if (!hdmi->ddc)
return 0;

+ hdmi->hdmi_data.sink_is_hdmi = false;
+
edid = drm_get_edid(connector, hdmi->ddc);
if (edid) {
hdmi->hdmi_data.sink_is_hdmi = drm_detect_hdmi_monitor(edid);
@@ -479,6 +491,17 @@ static int rk3066_hdmi_connector_get_modes(struct drm_connector *connector)
kfree(edid);
}

+ if ((ret == 0) || (hdmi->hdmi_data.sink_is_hdmi == false)) {
+ hdmi->hdmi_data.sink_is_hdmi = false;
+
+ mode = drm_mode_duplicate(hdmi->drm_dev, &edid_cea_modes[0]);
+ if (!mode)
+ return ret;
+ mode->type |= DRM_MODE_TYPE_PREFERRED;
+ drm_mode_probed_add(connector, mode);
+ ret++;
+ }
+
return ret;
}

--
2.11.0