remoteproc: wcss: add support for rpmsg communication

add glink and ssr subdevices for wcss rproc to enable rpmsg
communication.

Signed-off-by: Sivaprakash Murugesan <sivaprak@codeaurora.org>
Link: https://lore.kernel.org/r/1588350492-4663-1-git-send-email-sivaprak@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

drivers/remoteproc/qcom_q6v5_wcss.c

@@ -91,6 +91,9 @@ struct q6v5_wcss {
 	phys_addr_t mem_reloc;
 	void *mem_region;
 	size_t mem_size;
+
+	struct qcom_rproc_glink glink_subdev;
+	struct qcom_rproc_ssr ssr_subdev;
 };
 
 static int q6v5_wcss_reset(struct q6v5_wcss *wcss)
@@ -557,6 +560,9 @@ static int q6v5_wcss_probe(struct platform_device *pdev)
 	if (ret)
 		goto free_rproc;
 
+	qcom_add_glink_subdev(rproc, &wcss->glink_subdev);
+	qcom_add_ssr_subdev(rproc, &wcss->ssr_subdev, "q6wcss");
+
 	ret = rproc_add(rproc);
 	if (ret)
 		goto free_rproc;