fbdev: sh_mobile_lcdc: Store the frame buffer base address when panning

When the frame buffer base address is changed by a panning operation,
store it in the channel structure. It will be reused when runtime PM
code will use __sh_mobile_lcdc_start().

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c
index 292cfc0..69c267a 100644 (file)
--- a/drivers/video/sh_mobile_lcdcfb.c
+++ b/drivers/video/sh_mobile_lcdcfb.c
@@ -915,32 +915,28 @@ static int sh_mobile_fb_pan_display(struct fb_var_screeninfo *var,
                        base_addr_c += 2 * var->xoffset;
                else
                        base_addr_c += var->xoffset;
-       } else
-               base_addr_c = 0;
+       }
 
-       if (!ch->meram_enabled) {
-               lcdc_write_chan_mirror(ch, LDSA1R, base_addr_y);
-               if (base_addr_c)
-                       lcdc_write_chan_mirror(ch, LDSA2R, base_addr_c);
-       } else {
+       if (ch->meram_enabled) {
                struct sh_mobile_meram_cfg *cfg;
                struct sh_mobile_meram_info *mdev;
-               unsigned long icb_addr_y, icb_addr_c;
                int ret;
 
                cfg = ch->cfg.meram_cfg;
                mdev = priv->meram_dev;
                ret = mdev->ops->meram_update(mdev, cfg,
                                        base_addr_y, base_addr_c,
-                                       &icb_addr_y, &icb_addr_c);
+                                       &base_addr_y, &base_addr_c);
                if (ret)
                        return ret;
+       }
 
-               lcdc_write_chan_mirror(ch, LDSA1R, icb_addr_y);
-               if (icb_addr_c)
-                       lcdc_write_chan_mirror(ch, LDSA2R, icb_addr_c);
+       ch->base_addr_y = base_addr_y;
+       ch->base_addr_c = base_addr_c;
 
-       }
+       lcdc_write_chan_mirror(ch, LDSA1R, base_addr_y);
+       if (var->nonstd)
+               lcdc_write_chan_mirror(ch, LDSA2R, base_addr_c);
 
        if (lcdc_chan_is_sublcd(ch))
                lcdc_write(ch->lcdc, _LDRCNTR, ldrcntr ^ LDRCNTR_SRS);