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path: root/drivers/firmware/arm_scmi/driver.c
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Diffstat (limited to 'drivers/firmware/arm_scmi/driver.c')
-rw-r--r--drivers/firmware/arm_scmi/driver.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c
index 88c5c4ff4bb6..f8934d049d68 100644
--- a/drivers/firmware/arm_scmi/driver.c
+++ b/drivers/firmware/arm_scmi/driver.c
@@ -1048,6 +1048,11 @@ static inline void scmi_xfer_command_release(struct scmi_info *info,
static inline void scmi_clear_channel(struct scmi_info *info,
struct scmi_chan_info *cinfo)
{
+ if (!cinfo->is_p2a) {
+ dev_warn(cinfo->dev, "Invalid clear on A2P channel !\n");
+ return;
+ }
+
if (info->desc->ops->clear_channel)
info->desc->ops->clear_channel(cinfo);
}
@@ -2638,6 +2643,7 @@ static int scmi_chan_setup(struct scmi_info *info, struct device_node *of_node,
if (!cinfo)
return -ENOMEM;
+ cinfo->is_p2a = !tx;
cinfo->rx_timeout_ms = info->desc->max_rx_timeout_ms;
/* Create a unique name for this transport device */
@@ -2976,10 +2982,8 @@ static struct scmi_debug_info *scmi_debugfs_common_setup(struct scmi_info *info)
dbg->top_dentry = top_dentry;
if (devm_add_action_or_reset(info->dev,
- scmi_debugfs_common_cleanup, dbg)) {
- scmi_debugfs_common_cleanup(dbg);
+ scmi_debugfs_common_cleanup, dbg))
return NULL;
- }
return dbg;
}
@@ -3044,10 +3048,10 @@ static const struct scmi_desc *scmi_transport_setup(struct device *dev)
dev_info(dev, "Using %s\n", dev_driver_string(trans->supplier));
- ret = of_property_read_u32(dev->of_node, "max-rx-timeout-ms",
+ ret = of_property_read_u32(dev->of_node, "arm,max-rx-timeout-ms",
&trans->desc->max_rx_timeout_ms);
if (ret && ret != -EINVAL)
- dev_err(dev, "Malformed max-rx-timeout-ms DT property.\n");
+ dev_err(dev, "Malformed arm,max-rx-timeout-ms DT property.\n");
dev_info(dev, "SCMI max-rx-timeout: %dms\n",
trans->desc->max_rx_timeout_ms);