fbdev: sh_mobile_lcdcfb: separate display variable data from framebuffer data

This is a preparation for a patch, that shall allow displaying of a smaller
framebuffer on a bigger display and of a part of a bigger framebuffer on a
smaller display.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 6 insertions, 2 deletions

diff --git a/drivers/video/sh_mobile_hdmi.c b/drivers/video/sh_mobile_hdmi.c
index 56e44fd0a3af..51ce34990e24 100644
--- a/drivers/video/sh_mobile_hdmi.c
+++ b/drivers/video/sh_mobile_hdmi.c
@@ -732,6 +732,7 @@ static void hdmi_display_on(void *arg, struct fb_info *info)
          */
         struct sh_hdmi *hdmi = arg;
         struct sh_mobile_hdmi_info *pdata = hdmi->dev->platform_data;
+        struct sh_mobile_lcdc_chan *ch = info->par;
 
         pr_debug("%s(%p): state %x\n", __func__, pdata->lcd_dev, info->state);
 
@@ -747,7 +748,7 @@ static void hdmi_display_on(void *arg, struct fb_info *info)
         case HDMI_HOTPLUG_DISCONNECTED:
                 info->state = FBINFO_STATE_SUSPENDED;
         default:
-                hdmi->var = info->var;
+                hdmi->var = ch->display_var;
         }
 }
 
@@ -767,6 +768,7 @@ static void edid_work_fn(struct work_struct *work)
 {
         struct sh_hdmi *hdmi = container_of(work, struct sh_hdmi, edid_work.work);
         struct sh_mobile_hdmi_info *pdata = hdmi->dev->platform_data;
+        struct sh_mobile_lcdc_chan *ch;
 
         pr_debug("%s(%p): begin, hotplug status %d\n", __func__,
                  pdata->lcd_dev, hdmi->hp_state);
@@ -788,10 +790,12 @@ static void edid_work_fn(struct work_struct *work)
                 if (!hdmi->info)
                         goto out;
 
+                ch = hdmi->info->par;
+
                 acquire_console_sem();
 
                 /* HDMI plug in */
-                hdmi->info->var = hdmi->var;
+                ch->display_var = hdmi->var;
                 if (hdmi->info->state != FBINFO_STATE_RUNNING) {
                         fb_set_suspend(hdmi->info, 0);
                 } else {