Re: [PATCH 3/3] soc: qcom: apr: Add avs/audio tracking functionality

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 2019-11-19 12:23, Bjorn Andersson wrote:
On Mon 18 Nov 06:28 PST 2019, Sibi Sankar wrote:
diff --git a/drivers/soc/qcom/Kconfig b/drivers/soc/qcom/Kconfig
[..]
+static void of_register_apr_devices(struct device *dev, const char *svc_path)
 {
 	struct apr *apr = dev_get_drvdata(dev);
 	struct device_node *node;
+	const char *service_path;
+	int ret;

 	for_each_child_of_node(dev->of_node, node) {
 		struct apr_device_id id = { {0} };

+		ret = of_property_read_string_index(node, "qcom,protection-domain",
+						    1, &service_path);
+		if (svc_path) {
+			/* skip APR services that are PD independent */
+			if (ret)
+				continue;
+
+			/* skip APR services whose PD paths don't match */
+			if (strcmp(service_path, svc_path))
+				continue;
+		} else {
+			/* skip APR services whose PD lookups are registered*/

Missing space before */

Thanks will add it


+			if (ret == 0)
+				continue;
+		}
+
 		if (of_property_read_u32(node, "reg", &id.svc_id))
 			continue;

@@ -318,6 +365,37 @@ static void of_register_apr_devices(struct device *dev)
 	}
 }

+static int apr_remove_device(struct device *dev, void *svc_path)
+{
+	struct apr_device *adev = to_apr_device(dev);
+
+	if (svc_path) {
+		if (!strcmp(adev->service_path, (char *)svc_path))
+			device_unregister(&adev->dev);
+	} else {
+		device_unregister(&adev->dev);
+	}
+
+	return 0;
+}
+
+static int apr_pd_status(struct pdr_handle *pdr, struct pdr_service *pds)

Why is the pdr status function returning an int?

yes since I am not using the
return value in pdr_helpers
will make it void.


+{
+	struct apr *apr = container_of(pdr, struct apr, pdr);
+
+	switch (pds->state) {
+	case SERVREG_SERVICE_STATE_UP:
+		of_register_apr_devices(apr->dev, pds->service_path);
+		break;
+	case SERVREG_SERVICE_STATE_DOWN:
+		device_for_each_child(apr->dev, pds->service_path,
+				      apr_remove_device);
+		break;
+	}
+
+	return 0;
+}
[..]
@@ -343,20 +421,19 @@ static int apr_probe(struct rpmsg_device *rpdev)
 		return -ENOMEM;
 	}
 	INIT_WORK(&apr->rx_work, apr_rxwq);
+
+	ret = pdr_handle_init(&apr->pdr, apr_pd_status);
+	if (ret) {
+		dev_err(dev, "Failed to init PDR handle\n");

You need to destroy apr->rxwq here as well.

sry missed this


+		return ret;
+	}
+
 	INIT_LIST_HEAD(&apr->rx_list);
 	spin_lock_init(&apr->rx_lock);
 	spin_lock_init(&apr->svcs_lock);
 	idr_init(&apr->svcs_idr);
-	of_register_apr_devices(dev);
-
-	return 0;
-}

Regards,
Bjorn



[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]


  Powered by Linux