diff options
| author | Cristian Marussi <cristian.marussi@arm.com> | 2020-07-01 17:53:43 +0200 |
|---|---|---|
| committer | Sudeep Holla <sudeep.holla@arm.com> | 2020-07-01 18:07:26 +0200 |
| commit | 6b8a69131dc63df2eab3fc6f5f91b60bdd5301ff (patch) | |
| tree | d4166f0c95af4d94dbbfae963ec29cfed867b7dd /drivers | |
| parent | firmware: arm_scmi: Add notification dispatch and delivery (diff) | |
| download | linux-6b8a69131dc63df2eab3fc6f5f91b60bdd5301ff.tar.xz linux-6b8a69131dc63df2eab3fc6f5f91b60bdd5301ff.zip | |
firmware: arm_scmi: Enable notification core
Initialize and enable SCMI notifications core support during bus/driver
probe phase, so that protocols can start registering their supported
events during their initialization.
Link: https://lore.kernel.org/r/20200701155348.52864-5-cristian.marussi@arm.com
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/firmware/arm_scmi/driver.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c index a36a10b7b9d6..19a4287fc0f7 100644 --- a/drivers/firmware/arm_scmi/driver.c +++ b/drivers/firmware/arm_scmi/driver.c @@ -26,6 +26,7 @@ #include <linux/slab.h> #include "common.h" +#include "notify.h" #define CREATE_TRACE_POINTS #include <trace/events/scmi.h> @@ -204,11 +205,13 @@ __scmi_xfer_put(struct scmi_xfers_info *minfo, struct scmi_xfer *xfer) static void scmi_handle_notification(struct scmi_chan_info *cinfo, u32 msg_hdr) { + u64 ts; struct scmi_xfer *xfer; struct device *dev = cinfo->dev; struct scmi_info *info = handle_to_scmi_info(cinfo->handle); struct scmi_xfers_info *minfo = &info->rx_minfo; + ts = ktime_get_boottime_ns(); xfer = scmi_xfer_get(cinfo->handle, minfo); if (IS_ERR(xfer)) { dev_err(dev, "failed to get free message slot (%ld)\n", @@ -221,6 +224,8 @@ static void scmi_handle_notification(struct scmi_chan_info *cinfo, u32 msg_hdr) scmi_dump_header_dbg(dev, &xfer->hdr); info->desc->ops->fetch_notification(cinfo, info->desc->max_msg_size, xfer); + scmi_notify(cinfo->handle, xfer->hdr.protocol_id, + xfer->hdr.id, xfer->rx.buf, xfer->rx.len, ts); trace_scmi_rx_done(xfer->transfer_id, xfer->hdr.id, xfer->hdr.protocol_id, xfer->hdr.seq, @@ -788,6 +793,9 @@ static int scmi_probe(struct platform_device *pdev) if (ret) return ret; + if (scmi_notification_init(handle)) + dev_err(dev, "SCMI Notifications NOT available.\n"); + ret = scmi_base_protocol_init(handle); if (ret) { dev_err(dev, "unable to communicate with SCMI(%d)\n", ret); @@ -830,6 +838,8 @@ static int scmi_remove(struct platform_device *pdev) struct scmi_info *info = platform_get_drvdata(pdev); struct idr *idr = &info->tx_idr; + scmi_notification_exit(&info->handle); + mutex_lock(&scmi_list_mutex); if (info->users) ret = -EBUSY; |