remoteproc: qcom-tz: Inform SMD about crashing remotes

When a remote processor crashes there is no indication in SMD, so we
need to inform the SMD driver that it should reset all open channels
associated with the remote processor.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>

diff --git a/drivers/remoteproc/qcom_tz_pil.c b/drivers/remoteproc/qcom_tz_pil.c
index 4b2c8a07b82e5cfbbac67c6e740fdecc2ff4424a..0b163ebde737810e35736d55cb1dac35f7ff3983 100644 (file)
--- a/drivers/remoteproc/qcom_tz_pil.c
+++ b/drivers/remoteproc/qcom_tz_pil.c
@@ -70,6 +70,7 @@ struct qproc {
        struct completion stop_done;
 
        struct qcom_smem_item crash_reason;
+       struct device_node *smd_edge_node;
 };
 
 static int pas_supported(int id)
@@ -429,6 +430,8 @@ disable_regulator:
        return ret;
 }
 
+extern void qcom_smd_reset_edge(struct device_node *node);
+
 static int qproc_stop(struct rproc *rproc)
 {
        struct qproc *qproc = (struct qproc *)rproc->priv;
@@ -447,6 +450,9 @@ static int qproc_stop(struct rproc *rproc)
        ret = pas_shutdown(qproc->pas_id);
        if (ret)
                dev_err(qproc->dev, "failed to shutdown: %d\n", ret);
+
+       qcom_smd_reset_edge(qproc->smd_edge_node);
+
        return ret;
 }
 
@@ -687,6 +693,8 @@ static int qproc_probe(struct platform_device *pdev)
                return ret;
        }
 
+       qproc->smd_edge_node = of_parse_phandle(pdev->dev.of_node, "qcom,smd-edges", 0);
+
        ret = qproc_init_pas(qproc);
        if (ret)
                goto free_rproc;