diff options
| author | Lizhi Hou <lizhi.hou@amd.com> | 2026-02-11 12:47:16 -0800 |
|---|---|---|
| committer | Lizhi Hou <lizhi.hou@amd.com> | 2026-02-23 09:24:19 -0800 |
| commit | fdb65acfe655f844ae1e88696b9656d3ef5bb8fb (patch) | |
| tree | b1fe7518b7bc50e7699985bd53b800e79b8500ba /drivers | |
| parent | 1aa82181a3c285c7351523d587f7981ae4c015c8 (diff) | |
| download | linux-fdb65acfe655f844ae1e88696b9656d3ef5bb8fb.tar.gz linux-fdb65acfe655f844ae1e88696b9656d3ef5bb8fb.zip | |
accel/amdxdna: Fix suspend failure after enabling turbo mode
Enabling turbo mode disables hardware clock gating. Suspend requires
hardware clock gating to be re-enabled, otherwise suspend will fail.
Fix this by calling aie2_runtime_cfg() from aie2_hw_stop() to
re-enable clock gating during suspend. Also ensure that firmware is
initialized in aie2_hw_start() before modifying clock-gating
settings during resume.
Fixes: f4d7b8a6bc8c ("accel/amdxdna: Enhance power management settings")
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patch.msgid.link/20260211204716.722788-1-lizhi.hou@amd.com
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/accel/amdxdna/aie2_pci.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/accel/amdxdna/aie2_pci.c b/drivers/accel/amdxdna/aie2_pci.c index 07e369507818..4b3e6bb97bd2 100644 --- a/drivers/accel/amdxdna/aie2_pci.c +++ b/drivers/accel/amdxdna/aie2_pci.c @@ -323,6 +323,7 @@ static void aie2_hw_stop(struct amdxdna_dev *xdna) return; } + aie2_runtime_cfg(ndev, AIE2_RT_CFG_CLK_GATING, NULL); aie2_mgmt_fw_fini(ndev); xdna_mailbox_stop_channel(ndev->mgmt_chann); xdna_mailbox_destroy_channel(ndev->mgmt_chann); @@ -406,15 +407,15 @@ static int aie2_hw_start(struct amdxdna_dev *xdna) goto stop_psp; } - ret = aie2_pm_init(ndev); + ret = aie2_mgmt_fw_init(ndev); if (ret) { - XDNA_ERR(xdna, "failed to init pm, ret %d", ret); + XDNA_ERR(xdna, "initial mgmt firmware failed, ret %d", ret); goto destroy_mgmt_chann; } - ret = aie2_mgmt_fw_init(ndev); + ret = aie2_pm_init(ndev); if (ret) { - XDNA_ERR(xdna, "initial mgmt firmware failed, ret %d", ret); + XDNA_ERR(xdna, "failed to init pm, ret %d", ret); goto destroy_mgmt_chann; } |