From: Georgi Djakov <georgi.djakov@linaro.org>
To: robh+dt@kernel.org, bjorn.andersson@linaro.org,
agross@kernel.org, georgi.djakov@linaro.org
Cc: vkoul@kernel.org, evgreen@chromium.org, daidavid1@codeaurora.org,
linux-pm@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org
Subject: [PATCH v3 3/5] soc: qcom: smd-rpm: Create RPM interconnect proxy child device
Date: Tue, 11 Jun 2019 19:41:55 +0300 [thread overview]
Message-ID: <20190611164157.24656-4-georgi.djakov@linaro.org> (raw)
In-Reply-To: <20190611164157.24656-1-georgi.djakov@linaro.org>
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.
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
---
v3:
- New patch.
drivers/soc/qcom/smd-rpm.c | 17 ++++++++++++++++-
1 file changed, 16 insertions(+), 1 deletion(-)
diff --git a/drivers/soc/qcom/smd-rpm.c b/drivers/soc/qcom/smd-rpm.c
index 9956bb2c63f2..a028250737ec 100644
--- a/drivers/soc/qcom/smd-rpm.c
+++ b/drivers/soc/qcom/smd-rpm.c
@@ -27,12 +27,14 @@
/**
* 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;
@@ -201,6 +203,7 @@ 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)
@@ -213,11 +216,23 @@ 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))
+ platform_set_drvdata(rpm->icc, rpm);
+
+ 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);
}
next prev parent reply other threads:[~2019-06-11 16:42 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-11 16:41 [PATCH v3 0/5] Add QCS404 interconnect provider driver Georgi Djakov
2019-06-11 16:41 ` [PATCH v3 1/5] dt-bindings: interconnect: Add Qualcomm QCS404 DT bindings Georgi Djakov
2019-06-11 23:08 ` Bjorn Andersson
2019-06-11 16:41 ` [PATCH v3 2/5] interconnect: qcom: Add QCS404 interconnect provider driver Georgi Djakov
2019-06-11 23:34 ` Bjorn Andersson
2019-06-11 16:41 ` Georgi Djakov [this message]
2019-06-11 23:23 ` [PATCH v3 3/5] soc: qcom: smd-rpm: Create RPM interconnect proxy child device Bjorn Andersson
2019-06-11 16:41 ` [PATCH v3 4/5] interconnect: qcom: Add interconnect SMD over SMD driver Georgi Djakov
2019-06-11 23:31 ` Bjorn Andersson
2019-06-11 16:41 ` [PATCH v3 5/5] arm64: dts: qcs404: Add interconnect provider DT nodes Georgi Djakov
2019-06-11 23:40 ` Bjorn Andersson
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