to_imx_mu_priv
struct imx_mu_priv *priv = to_imx_mu_priv(chan->mbox);
struct imx_mu_priv *priv = to_imx_mu_priv(chan->mbox);
struct imx_mu_priv *priv = to_imx_mu_priv(chan->mbox);
struct imx_mu_priv *priv = to_imx_mu_priv(chan->mbox);