diff options
Diffstat (limited to 'drivers/gpu/drm/v3d/v3d_power.c')
| -rw-r--r-- | drivers/gpu/drm/v3d/v3d_power.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/v3d/v3d_power.c b/drivers/gpu/drm/v3d/v3d_power.c index f7df6393d38f..c53146316079 100644 --- a/drivers/gpu/drm/v3d/v3d_power.c +++ b/drivers/gpu/drm/v3d/v3d_power.c @@ -54,8 +54,15 @@ int v3d_power_suspend(struct device *dev) v3d_clean_caches(v3d); + /* Wait until V3D has no active or pending AXI transactions. */ + v3d_idle_axi(v3d, 0); + v3d_idle_gca(v3d); + ret = v3d_suspend_sms(v3d); if (ret) { + /* Staying active: undo the GMP STOP_REQ from v3d_idle_axi(). */ + V3D_WRITE(V3D_GMP_CFG(v3d->ver), + V3D_READ(V3D_GMP_CFG(v3d->ver)) & ~V3D_GMP_CFG_STOP_REQ); v3d_irq_enable(v3d); return ret; } |