| Message ID | 20190613151323.10850-3-georgi.djakov@linaro.org (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
| Series | Add QCS404 interconnect provider driver | expand |
On Thu 13 Jun 08:13 PDT 2019, Georgi Djakov wrote: > 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> > --- > > v4: > - Return error if platform_device_register_data() fails > - Remove platform_set_drvdata() on the child device. > > 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 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); > } >
On Thu, Jun 13, 2019 at 06:13:20PM +0300, Georgi Djakov wrote: > 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> Reviewed-by: Brian Masney <masneyb@onstation.org> Tested-by: Brian Masney <masneyb@onstation.org> # msm8974 I think this patch may have fell through the cracks since I don't see it in linux-next. The qcs404 patches in this series were merged. Brian > --- > > v4: > - Return error if platform_device_register_data() fails > - Remove platform_set_drvdata() on the child device. > > 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 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); > } >
On Sun 06 Oct 19:01 PDT 2019, Brian Masney wrote: > On Thu, Jun 13, 2019 at 06:13:20PM +0300, Georgi Djakov wrote: > > 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> > > Reviewed-by: Brian Masney <masneyb@onstation.org> > Tested-by: Brian Masney <masneyb@onstation.org> # msm8974 > > I think this patch may have fell through the cracks since I don't see > it in linux-next. The qcs404 patches in this series were merged. > Yes, I was expecting Georgi to pick the entire series through his tree, but see now that I didn't actually ask Georgi to do so. Sorry about that. I picked the this and the dts patch last week, so if it's not in linux-next yet it should show up in the next one. Thanks, Bjorn > Brian > > > --- > > > > v4: > > - Return error if platform_device_register_data() fails > > - Remove platform_set_drvdata() on the child device. > > > > 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 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); > > } > >
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); }
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> --- v4: - Return error if platform_device_register_data() fails - Remove platform_set_drvdata() on the child device. v3: - New patch. drivers/soc/qcom/smd-rpm.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-)