diff options
| author | Georgi Djakov <georgi.djakov@linaro.org> | 2019-07-23 17:23:36 +0300 |
|---|---|---|
| committer | Bjorn Andersson <bjorn.andersson@linaro.org> | 2019-10-01 21:40:01 -0700 |
| commit | 66e6a633910a8e046ffefa7753210c237868419f (patch) | |
| tree | ccc7cb746a358facf1f538b06813b090af65fe64 /drivers/soc | |
| parent | 99356b03b431f9589bbaec2bc5bacceccb3dd99a (diff) | |
| download | linux-66e6a633910a8e046ffefa7753210c237868419f.tar.gz linux-66e6a633910a8e046ffefa7753210c237868419f.tar.bz2 linux-66e6a633910a8e046ffefa7753210c237868419f.zip | |
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: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Diffstat (limited to 'drivers/soc')
| -rw-r--r-- | drivers/soc/qcom/smd-rpm.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/soc/qcom/smd-rpm.c b/drivers/soc/qcom/smd-rpm.c index fa9dd12b5e39..34cdd638a6c1 100644 --- a/drivers/soc/qcom/smd-rpm.c +++ b/drivers/soc/qcom/smd-rpm.c @@ -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); } |