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platform/x86/amd: pmc: Don't try to read SMU version on Picasso

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[ Upstream commit b845772677 ]

Picasso doesn't support the command in the uPEP mailbox to try to
read the SMU version.

Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2449
Fixes: f6045de1f5 ("platform/x86: amd-pmc: Export Idlemask values based on the APU")
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20230409185348.556161-2-Shyam-sundar.S-k@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Mario Limonciello
2023-04-10 00:23:41 +05:30
committed by Greg Kroah-Hartman
parent 1c1798c45b
commit d1dbf5b7ea
1 changed files with 3 additions and 0 deletions
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3
drivers/platform/x86/amd/pmc.c
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@@ -373,6 +373,9 @@ static int amd_pmc_get_smu_version(struct amd_pmc_dev *dev)
int rc; int rc;
u32 val; u32 val;
if (dev->cpu_id == AMD_CPU_ID_PCO)
return -ENODEV;
rc = amd_pmc_send_cmd(dev, 0, &val, SMU_MSG_GETSMUVERSION, 1); rc = amd_pmc_send_cmd(dev, 0, &val, SMU_MSG_GETSMUVERSION, 1);
if (rc) if (rc)
return rc; return rc;