accel/ivpu: Put NPU back to D3hot after failed resume

Put NPU in D3hot after ivpu_resume() fails to power up the device.
This will assure that D3->D0 power cycle will be performed before
the next resume and also will minimize power usage in this corner case.

Fixes: 28083ff18d3f ("accel/ivpu: Fix DevTLB errors on suspend/resume and recovery")
Cc: <stable@vger.kernel.org> # v6.8+
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240402104929.941186-5-jacek.lawrynowicz@linux.intel.com

diff --git a/drivers/accel/ivpu/ivpu_pm.c b/drivers/accel/ivpu/ivpu_pm.c
index 325b82f8d971c2112ceb3c43718dc6cc307c89a8..ba51781b589602721a13f37ae52879ccade207bc 100644 (file)
--- a/drivers/accel/ivpu/ivpu_pm.c
+++ b/drivers/accel/ivpu/ivpu_pm.c
@@ -97,6 +97,7 @@ err_mmu_disable:
        ivpu_mmu_disable(vdev);
 err_power_down:
        ivpu_hw_power_down(vdev);
+       pci_set_power_state(to_pci_dev(vdev->drm.dev), PCI_D3hot);
 
        if (!ivpu_fw_is_cold_boot(vdev)) {
                ivpu_pm_prepare_cold_boot(vdev);