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On Thu, Mar 05, 2026 at 08:44:26AM +0100, Alexander Stein wrote: >Hi, > >Am Donnerstag, 5. März 2026, 02:56:45 CET schrieb Peng Fan (OSS): >> From: Peng Fan >> >> Add reset reason string table for i.MX95 and introduce a helper >> (scmi_imx_misc_get_reason) to query and print both system and LM >> (Logical Machine) reset reasons via the SCMI MISC protocol. >> >> Signed-off-by: Peng Fan >> --- [...] >> + if (boot.valid) >> + dev_info(&sdev->dev, "%s Boot reason: %s, origin: %d, errid: %d\n", >> + system ? "SYS" : "LM", rst[boot.reason], >> + boot.orig_valid ? boot.origin : -1, >> + boot.err_valid ? boot.errid : -1); >> + if (shutdown.valid) >> + dev_info(&sdev->dev, "%s shutdown reason: %s, origin: %d, errid: %d\n", >> + system ? "SYS" : "LM", rst[shutdown.reason], >> + shutdown.orig_valid ? shutdown.origin : -1, >> + shutdown.err_valid ? shutdown.errid : -1); > >Is there a way to query this from userspace programs instead of printing into kernel log? I not add sysfs or debugfs to get the information in this patchset, since our customer only want the information could be shown in kernel boot log. But I could add also sysfs interface to allow userspace get the information if you need this feature. Regards, Peng > >Best regards, >Alexander > >> + } else { >> + dev_err(&sdev->dev, "Failed to get lm reset reason: %d\n", ret); >> + } >> + >> + return 0; >> +} >> + >> static int scmi_imx_misc_ctrl_probe(struct scmi_device *sdev) >> { >> const struct scmi_handle *handle = sdev->handle; >> @@ -133,6 +204,8 @@ static int scmi_imx_misc_ctrl_probe(struct scmi_device *sdev) >> scmi_imx_dentry = debugfs_create_dir("scmi_imx", NULL); >> debugfs_create_file("syslog", 0444, scmi_imx_dentry, &sdev->dev, &syslog_fops); >> >> + scmi_imx_misc_get_reason(sdev); >> + >> return devm_add_action_or_reset(&sdev->dev, scmi_imx_misc_put, scmi_imx_dentry); >> } >> >> >> > > >-- >TQ-Systems GmbH | Mühlstraße 2, Gut Delling | 82229 Seefeld, Germany >Amtsgericht München, HRB 105018 >Geschäftsführer: Detlef Schneider, Rüdiger Stahl, Stefan Schneider >http://www.tq-group.com/ > >