DISP_REG_MUTEX 539 drivers/gpu/drm/mediatek/mtk_drm_ddp.c writel(1, ddp->regs + DISP_REG_MUTEX(mutex->id)); DISP_REG_MUTEX 540 drivers/gpu/drm/mediatek/mtk_drm_ddp.c if (readl_poll_timeout_atomic(ddp->regs + DISP_REG_MUTEX(mutex->id), DISP_REG_MUTEX 550 drivers/gpu/drm/mediatek/mtk_drm_ddp.c writel(0, ddp->regs + DISP_REG_MUTEX(mutex->id));