diff options
| author |   Jon Hunter <jonathanh@nvidia.com> | 2026-07-15 12:10:37 +0100 |
|---|---|---|
| committer |   Thierry Reding <treding@nvidia.com> | 2026-07-15 13:39:42 +0200 |
| commit | 74a161d20ef60bb8db333a5203284796429ecb99 (patch) | |
| tree | ad195f14d608ee08019718dbfa1463553eb0d15c | |
| parent | Linux 7.2-rc1 (diff) | |
soc/tegra: pmc: Don't register sys-off handler for multi-socket devices
The kernel does not permit a device to register multiple sys-off
handlers for non-default priority levels. Hence, for multi-socket Tegra
devices, registering the sys-off handler in the Tegra PMC driver (which
uses the low priority level) more than once fails.
The Tegra PMC sys-off handler is supported for all current generations
of the Tegra SoC, however, it is only used as a low priority handler if
everything else fails. For example, on Tegra264 the EFI reboot handler
is called to restart the device. Therefore, for multi-socket devices,
skip the registering of the sys-off handler to because this is not
critical.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
| -rw-r--r-- | drivers/soc/tegra/pmc.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c index f419a5395545..41ed716d5857 100644 --- a/drivers/soc/tegra/pmc.c +++ b/drivers/soc/tegra/pmc.c @@ -3074,15 +3074,18 @@ static int tegra_pmc_probe(struct platform_device *pdev) } } - err = devm_register_sys_off_handler(&pdev->dev, - SYS_OFF_MODE_RESTART, - SYS_OFF_PRIO_LOW, - tegra_pmc_restart_handler, - pmc); - if (err) { - dev_err(&pdev->dev, "failed to register sys-off handler: %d\n", - err); - return err; + if (dev_to_node(&pdev->dev) == NUMA_NO_NODE) { + err = devm_register_sys_off_handler(&pdev->dev, + SYS_OFF_MODE_RESTART, + SYS_OFF_PRIO_LOW, + tegra_pmc_restart_handler, + pmc); + if (err) { + dev_err(&pdev->dev, + "failed to register sys-off handler: %d\n", + err); + return err; + } } /* |