ARM: pxa168fb: clear enable bit when not active

While fb isn't active, we should clear CFG_GRA_ENA bit. The existing code
can't clear this bit.

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>

diff --git a/drivers/video/pxa168fb.c b/drivers/video/pxa168fb.c
index 5d786bd..a31a77f 100644 (file)
--- a/drivers/video/pxa168fb.c
+++ b/drivers/video/pxa168fb.c
@@ -298,8 +298,8 @@ static void set_dma_control0(struct pxa168fb_info *fbi)
         * Set bit to enable graphics DMA.
         */
        x = readl(fbi->reg_base + LCD_SPU_DMA_CTRL0);
-       x |= fbi->active ? 0x00000100 : 0;
-       fbi->active = 0;
+       x &= ~CFG_GRA_ENA_MASK;
+       x |= fbi->active ? CFG_GRA_ENA(1) : CFG_GRA_ENA(0);
 
        /*
         * If we are in a pseudo-color mode, we need to enable