[PATCH 1/8] platform/x86/amd: pmc: Don't try to read SMU version on Picasso

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: Mario Limonciello <mario.limonciello@xxxxxxx>

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: f6045de1f532 ("platform/x86: amd-pmc: Export Idlemask values based on the APU")
Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxx>
---
 drivers/platform/x86/amd/pmc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/platform/x86/amd/pmc.c b/drivers/platform/x86/amd/pmc.c
index ab05b9ee6655..627677c3a335 100644
--- a/drivers/platform/x86/amd/pmc.c
+++ b/drivers/platform/x86/amd/pmc.c
@@ -407,6 +407,9 @@ static int amd_pmc_get_smu_version(struct amd_pmc_dev *dev)
 	int rc;
 	u32 val;
 
+	if (dev->cpu_id == AMD_CPU_ID_PCO)
+		return -ENODEV;
+
 	rc = amd_pmc_send_cmd(dev, 0, &val, SMU_MSG_GETSMUVERSION, 1);
 	if (rc)
 		return rc;
-- 
2.25.1




[Index of Archives]     [Linux Kernel Development]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux