When running s2idle on PS if using PMFW older than 76.49.0 we will
trip up some bugs that will lead to freezes outside of the control
of Linux. Set a guard that we only can enter HW sleep on 76.49.0
or newer for PS.
Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxx>
---
drivers/platform/x86/amd/pmc.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/platform/x86/amd/pmc.c b/drivers/platform/x86/amd/pmc.c
index c42fa47381c3..e7c6c06b2ccd 100644
--- a/drivers/platform/x86/amd/pmc.c
+++ b/drivers/platform/x86/amd/pmc.c
@@ -778,6 +778,14 @@ static void amd_pmc_s2idle_prepare(void)
return;
}
break;
+ case AMD_CPU_ID_PS:
+ if (!amd_pmc_verify_min_version(pdev, 76, 49)) {
+ dev_warn(pdev->dev,
+ "hardware sleep unsupported with firmware %u.%u.%u\n",
+ pdev->major, pdev->minor, pdev->rev);
+ return;
+ }
+ break;
}
msg = amd_pmc_get_os_hint(pdev);
--
2.34.1
