Commit fee8abc3 authored by Laurent Pinchart's avatar Laurent Pinchart

drm: rcar-du: Add probe deferral debug messages

Print a message when the HDMI I2C slave encoder can't be found to help
debugging probe deferral issues.
Signed-off-by: default avatarLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
parent 6bc2e15c
......@@ -131,12 +131,19 @@ int rcar_du_hdmienc_init(struct rcar_du_device *rcdu,
/* Locate the slave I2C device and driver. */
i2c_slave = of_find_i2c_device_by_node(np);
if (!i2c_slave || !i2c_get_clientdata(i2c_slave))
if (!i2c_slave || !i2c_get_clientdata(i2c_slave)) {
dev_dbg(rcdu->dev,
"can't get I2C slave for %s, deferring probe\n",
of_node_full_name(np));
return -EPROBE_DEFER;
}
hdmienc->dev = &i2c_slave->dev;
if (hdmienc->dev->driver == NULL) {
dev_dbg(rcdu->dev,
"I2C slave %s not probed yet, deferring probe\n",
dev_name(hdmienc->dev));
ret = -EPROBE_DEFER;
goto error;
}
......
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