drm/imx/dcss: Use dev_err_probe

This helps identifying problems with downstream pipeline devices, like
HDMI/DP output.
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Laurentiu Palcu <laurentiu.palcu@oss.nxp.com>
Signed-off-by: Laurentiu Palcu <laurentiu.palcu@oss.nxp.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230717092950.448823-1-alexander.stein@ew.tq-group.com

drivers/gpu/drm/imx/dcss/dcss-drv.c

@@ -66,6 +66,7 @@ static int dcss_drv_platform_probe(struct platform_device *pdev)
 	mdrv->kms = dcss_kms_attach(mdrv->dcss);
 	if (IS_ERR(mdrv->kms)) {
 		err = PTR_ERR(mdrv->kms);
+		dev_err_probe(dev, err, "Failed to initialize KMS\n");
 		goto dcss_shutoff;
 	}