From: Cristian Marussi <cristian.marussi@arm.com> To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: sudeep.holla@arm.com, james.quinlan@broadcom.com, f.fainelli@gmail.com, vincent.guittot@linaro.org, peng.fan@oss.nxp.com, michal.simek@amd.com, quic_sibis@quicinc.com, quic_nkela@quicinc.com, Cristian Marussi <cristian.marussi@arm.com> Subject: [PATCH 4/4] firmware: arm_scmi: Use dev_err_probe to bail out Date: Wed, 28 Feb 2024 19:32:38 +0000 [thread overview] Message-ID: <20240228193238.2102157-5-cristian.marussi@arm.com> (raw) In-Reply-To: <20240228193238.2102157-1-cristian.marussi@arm.com> 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(-) diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c index a3182199f123..7329f3a1c1de 100644 --- a/drivers/firmware/arm_scmi/driver.c +++ b/drivers/firmware/arm_scmi/driver.c @@ -2522,6 +2522,10 @@ 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; } @@ -2791,6 +2795,7 @@ 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; @@ -2841,27 +2846,37 @@ 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); @@ -2898,9 +2913,11 @@ 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; } @@ -2954,7 +2971,8 @@ 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) -- 2.43.0
WARNING: multiple messages have this Message-ID (diff)
From: Cristian Marussi <cristian.marussi@arm.com> To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: sudeep.holla@arm.com, james.quinlan@broadcom.com, f.fainelli@gmail.com, vincent.guittot@linaro.org, peng.fan@oss.nxp.com, michal.simek@amd.com, quic_sibis@quicinc.com, quic_nkela@quicinc.com, Cristian Marussi <cristian.marussi@arm.com> Subject: [PATCH 4/4] firmware: arm_scmi: Use dev_err_probe to bail out Date: Wed, 28 Feb 2024 19:32:38 +0000 [thread overview] Message-ID: <20240228193238.2102157-5-cristian.marussi@arm.com> (raw) In-Reply-To: <20240228193238.2102157-1-cristian.marussi@arm.com> 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(-) diff --git a/drivers/firmware/arm_scmi/driver.c b/drivers/firmware/arm_scmi/driver.c index a3182199f123..7329f3a1c1de 100644 --- a/drivers/firmware/arm_scmi/driver.c +++ b/drivers/firmware/arm_scmi/driver.c @@ -2522,6 +2522,10 @@ 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; } @@ -2791,6 +2795,7 @@ 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; @@ -2841,27 +2846,37 @@ 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); @@ -2898,9 +2913,11 @@ 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; } @@ -2954,7 +2971,8 @@ 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) -- 2.43.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2024-02-28 19:33 UTC|newest] Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-02-28 19:32 [PATCH 0/4] SCMI misc small-updates Cristian Marussi 2024-02-28 19:32 ` Cristian Marussi 2024-02-28 19:32 ` [PATCH 1/4] include: trace: Widen the tag buffer in trace_scmi_dump_msg Cristian Marussi 2024-02-28 19:32 ` Cristian Marussi 2024-02-28 19:32 ` [PATCH 2/4] firmware: arm_scmi: Add message dump traces for bad and unexpected replies Cristian Marussi 2024-02-28 19:32 ` Cristian Marussi 2024-02-28 19:32 ` [PATCH 3/4] firmware: arm_scmi: Simplify scmi_devm_notifier_unregister Cristian Marussi 2024-02-28 19:32 ` Cristian Marussi 2024-02-28 19:32 ` Cristian Marussi [this message] 2024-02-28 19:32 ` [PATCH 4/4] firmware: arm_scmi: Use dev_err_probe to bail out Cristian Marussi
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