accel/ivpu: Disable MMU before checking for idle

Disable MMU communication before checking if NPU is idle.
NPU may otherwise be woken up when adding/removing contexts.
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Reviewed-by: Wachowski, Karol <karol.wachowski@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240611120433.1012423-12-jacek.lawrynowicz@linux.intel.com

drivers/accel/ivpu/ivpu_pm.c

@@ -245,6 +245,8 @@ int ivpu_pm_runtime_suspend_cb(struct device *dev)
 
 	ivpu_dbg(vdev, PM, "Runtime suspend..\n");
 
+	ivpu_mmu_disable(vdev);
+
 	is_idle = ivpu_hw_is_idle(vdev) || vdev->pm->dct_active_percent;
 	if (!is_idle)
 		ivpu_err(vdev, "NPU is not idle before autosuspend\n");