Commit 66e6a633 authored by Georgi Djakov's avatar Georgi Djakov Committed by Bjorn Andersson
Browse files

soc: qcom: smd-rpm: Create RPM interconnect proxy child device 



Register a platform device to handle the communication of bus bandwidth
requests with the remote processor. The interconnect proxy device is part
of this remote processor (RPM) hardware. Let's create a icc-smd-rpm proxy
child device to represent the bus throughput functionality that is provided
by the RPM.

Reviewed-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: default avatarGeorgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
parent 99356b03

drivers/soc/qcom/smd-rpm.c

+16 −1
Original line number Diff line number Diff line
@@ -19,12 +19,14 @@ 
/**

 * struct qcom_smd_rpm - state of the rpm device driver

 * @rpm_channel:	reference to the smd channel

 * @icc:		interconnect proxy device

 * @ack:		completion for acks

 * @lock:		mutual exclusion around the send/complete pair

 * @ack_status:		result of the rpm request

 */

struct qcom_smd_rpm {

	struct rpmsg_endpoint *rpm_channel;

	struct platform_device *icc;

	struct device *dev;



	struct completion ack;
@@ -193,6 +195,7 @@ static int qcom_smd_rpm_callback(struct rpmsg_device *rpdev, 
static int qcom_smd_rpm_probe(struct rpmsg_device *rpdev)

{

	struct qcom_smd_rpm *rpm;

	int ret;



	rpm = devm_kzalloc(&rpdev->dev, sizeof(*rpm), GFP_KERNEL);

	if (!rpm)
@@ -205,11 +208,23 @@ static int qcom_smd_rpm_probe(struct rpmsg_device *rpdev) 
	rpm->rpm_channel = rpdev->ept;

	dev_set_drvdata(&rpdev->dev, rpm);



	return of_platform_populate(rpdev->dev.of_node, NULL, NULL, &rpdev->dev);

	rpm->icc = platform_device_register_data(&rpdev->dev, "icc_smd_rpm", -1,

						 NULL, 0);

	if (IS_ERR(rpm->icc))

		return PTR_ERR(rpm->icc);



	ret = of_platform_populate(rpdev->dev.of_node, NULL, NULL, &rpdev->dev);

	if (ret)

		platform_device_unregister(rpm->icc);



	return ret;

}



static void qcom_smd_rpm_remove(struct rpmsg_device *rpdev)

{

	struct qcom_smd_rpm *rpm = dev_get_drvdata(&rpdev->dev);



	platform_device_unregister(rpm->icc);

	of_platform_depopulate(&rpdev->dev);

}

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