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| author | Jay Buddhabhatti <jay.buddhabhatti@amd.com> | 2023-11-29 03:27:12 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-12-07 11:18:29 +0900 |
| commit | 8c016c807a90535432543204dbbb032e4a709009 (patch) | |
| tree | 3a61528ae78f05890f409127a57cb687e76b5fb2 /drivers/firmware/xilinx | |
| parent | a9d061840010df64aad2a3e5b308e663d6a36e2f (diff) | |
| download | linux-stable-8c016c807a90535432543204dbbb032e4a709009.tar.gz linux-stable-8c016c807a90535432543204dbbb032e4a709009.tar.bz2 linux-stable-8c016c807a90535432543204dbbb032e4a709009.zip | |
drivers: soc: xilinx: Fix error message on SGI registration failure
Failure to register SGI for firmware event notification is non-fatal error
when feature is not supported by other modules such as Xen and TF-A. Add
_info level log message for such special case.
Also add XST_PM_INVALID_VERSION error code and map it to -EOPNOSUPP Linux
kernel error code. If feature is not supported or EEMI API version is
mismatch, firmware can return XST_PM_INVALID_VERSION = 4 or
XST_PM_NO_FEATURE = 19 error code.
Co-developed-by: Tanmay Shah <tanmay.shah@amd.com>
Signed-off-by: Tanmay Shah <tanmay.shah@amd.com>
Signed-off-by: Jay Buddhabhatti <jay.buddhabhatti@amd.com>
Link: https://lore.kernel.org/r/20231129112713.22718-5-jay.buddhabhatti@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/firmware/xilinx')
| -rw-r--r-- | drivers/firmware/xilinx/zynqmp.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c index 533679a07b57..077b49e440b5 100644 --- a/drivers/firmware/xilinx/zynqmp.c +++ b/drivers/firmware/xilinx/zynqmp.c @@ -92,6 +92,8 @@ static int zynqmp_pm_ret_code(u32 ret_status) return 0; case XST_PM_NO_FEATURE: return -ENOTSUPP; + case XST_PM_INVALID_VERSION: + return -EOPNOTSUPP; case XST_PM_NO_ACCESS: return -EACCES; case XST_PM_ABORT_SUSPEND: @@ -396,7 +398,7 @@ int zynqmp_pm_register_sgi(u32 sgi_num, u32 reset) int ret; ret = zynqmp_pm_invoke_fn(TF_A_PM_REGISTER_SGI, NULL, 2, sgi_num, reset); - if (!ret) + if (ret != -EOPNOTSUPP && !ret) return ret; /* try old implementation as fallback strategy if above fails */ |