LCDC_CTRL
writel(CTRL_DOTCLK_MODE, mxsfb->base + LCDC_CTRL + REG_SET);
writel(CTRL_RUN, mxsfb->base + LCDC_CTRL + REG_SET);
writel(CTRL_DOTCLK_MODE, mxsfb->base + LCDC_CTRL + REG_CLR);
readl_poll_timeout(mxsfb->base + LCDC_CTRL, reg, !(reg & CTRL_RUN),
ret = clear_poll_bit(mxsfb->base + LCDC_CTRL, CTRL_SFTRST);
writel(CTRL_CLKGATE, mxsfb->base + LCDC_CTRL + REG_CLR);
ret = clear_poll_bit(mxsfb->base + LCDC_CTRL, CTRL_SFTRST);
ret = clear_poll_bit(mxsfb->base + LCDC_CTRL, CTRL_CLKGATE);
writel(ctrl, mxsfb->base + LCDC_CTRL);