[PATCH v4 11/14] drm/bridge: dw-hdmi-qp: Log resolution and refresh rate in atomic_enable()

[Cristian Ciocaltea <cristian.ciocaltea@collabora.com>]

The debug entry in the HDMI branch of dw_hdmi_qp_bridge_atomic_enable()
logged the mode field as the fixed 'HDMI' label, giving no information
about the actual display timing being configured.

Extend it to also include the active resolution and refresh rate,
retrieved from the CRTC mode in the incoming atomic state:

  dw_hdmi_qp_bridge_atomic_enable mode=HDMI:1920x1080@50Hz fmt=RGB rate=185625000 bpc=10

This makes the log line self-contained and directly useful when
debugging mode-setting issues, format negotiation, or TMDS rate
mismatches without having to cross-reference a separate mode dump.

Tested-by: Igor Paunovic <royalnet026@gmail.com>
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
---
 drivers/gpu/drm/bridge/synopsys/dw-hdmi-qp.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-qp.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-qp.c
index cfd1b18c06e6..0e6142301791 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-qp.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-qp.c
@@ -752,6 +752,8 @@ static void dw_hdmi_qp_bridge_atomic_enable(struct drm_bridge *bridge,
 {
 	struct dw_hdmi_qp *hdmi = bridge->driver_private;
 	struct drm_connector_state *conn_state;
+	const struct drm_display_mode *mode;
+	struct drm_crtc_state *crtc_state;
 	struct drm_connector *connector;
 	unsigned int op_mode;
 
@@ -764,9 +766,15 @@ static void dw_hdmi_qp_bridge_atomic_enable(struct drm_bridge *bridge,
 		return;
 
 	if (connector->display_info.is_hdmi) {
-		dev_dbg(hdmi->dev, "%s mode=HDMI %s rate=%llu bpc=%u\n", __func__,
+		crtc_state = drm_atomic_get_new_crtc_state(state, conn_state->crtc);
+		mode = &crtc_state->mode;
+		dev_dbg(hdmi->dev,
+			"%s mode=HDMI:%ux%u@%uHz fmt=%s rate=%llu bpc=%u\n",
+			__func__, mode->hdisplay, mode->vdisplay,
+			drm_mode_vrefresh(mode),
 			drm_hdmi_connector_get_output_format_name(conn_state->hdmi.output_format),
 			conn_state->hdmi.tmds_char_rate, conn_state->hdmi.output_bpc);
+
 		op_mode = 0;
 		hdmi->tmds_char_rate = conn_state->hdmi.tmds_char_rate;
 	} else {

-- 
2.55.0