DISP_REG_MUTEX_EN
mtx->addr + DISP_REG_MUTEX_EN(mutex->id), 1);
writel(0, mtx->regs + DISP_REG_MUTEX_EN(mutex->id));
writel(1, mtx->regs + DISP_REG_MUTEX_EN(mutex->id));
writel(1, mtx->regs + DISP_REG_MUTEX_EN(mutex->id));