@@ -2540,6 +2540,10 @@ scmi_txrx_setup(struct scmi_info *info, struct device_node *of_node,
ret = 0;
}
+ if (ret)
+ dev_err(info->dev,
+ "failed to setup channel for protocol:0x%X\n", prot_id);
+
return ret;
}
@@ -2809,6 +2813,7 @@ static int scmi_debugfs_raw_mode_setup(struct scmi_info *info)
static int scmi_probe(struct platform_device *pdev)
{
int ret;
+ char *err_str = "probe failure\n";
struct scmi_handle *handle;
const struct scmi_desc *desc;
struct scmi_info *info;
@@ -2859,27 +2864,37 @@ static int scmi_probe(struct platform_device *pdev)
if (desc->ops->link_supplier) {
ret = desc->ops->link_supplier(dev);
- if (ret)
+ if (ret) {
+ err_str = "transport not ready\n";
goto clear_ida;
+ }
}
/* Setup all channels described in the DT at first */
ret = scmi_channels_setup(info);
- if (ret)
+ if (ret) {
+ err_str = "failed to setup channels\n";
goto clear_ida;
+ }
ret = bus_register_notifier(&scmi_bus_type, &info->bus_nb);
- if (ret)
+ if (ret) {
+ err_str = "failed to register bus notifier\n";
goto clear_txrx_setup;
+ }
ret = blocking_notifier_chain_register(&scmi_requested_devices_nh,
&info->dev_req_nb);
- if (ret)
+ if (ret) {
+ err_str = "failed to register device notifier\n";
goto clear_bus_notifier;
+ }
ret = scmi_xfer_info_init(info);
- if (ret)
+ if (ret) {
+ err_str = "failed to init xfers pool\n";
goto clear_dev_req_notifier;
+ }
if (scmi_top_dentry) {
info->dbg = scmi_debugfs_common_setup(info);
@@ -2916,9 +2931,11 @@ static int scmi_probe(struct platform_device *pdev)
*/
ret = scmi_protocol_acquire(handle, SCMI_PROTOCOL_BASE);
if (ret) {
- dev_err(dev, "unable to communicate with SCMI\n");
- if (coex)
+ err_str = "unable to communicate with SCMI\n";
+ if (coex) {
+ dev_err(dev, err_str);
return 0;
+ }
goto notification_exit;
}
@@ -2972,7 +2989,8 @@ static int scmi_probe(struct platform_device *pdev)
scmi_cleanup_txrx_channels(info);
clear_ida:
ida_free(&scmi_id, info->id);
- return ret;
+
+ return dev_err_probe(dev, ret, err_str);
}
static void scmi_remove(struct platform_device *pdev)
Use dev_err_probe on the failure path of SCMI core probing. Signed-off-by: Cristian Marussi <cristian.marussi@arm.com> --- drivers/firmware/arm_scmi/driver.c | 34 +++++++++++++++++++++++------- 1 file changed, 26 insertions(+), 8 deletions(-)