karo: tx6: fix initialization of panel_info

diff --git a/board/karo/tx6/tx6qdl.c b/board/karo/tx6/tx6qdl.c
index 3cd37d7a3aa0de99aff69713eb979c305da65455..349f48ff3b809b5f00640ae8a2e67dbc2fb13423 100644 (file)
--- a/board/karo/tx6/tx6qdl.c
+++ b/board/karo/tx6/tx6qdl.c
@@ -845,10 +845,14 @@ void lcd_ctrl_init(void *lcdbase)
                p = &fb_mode;
                debug("Using video mode from FDT\n");
                vm += strlen(vm);
-               if (fb_mode.xres < panel_info.vl_col)
-                       panel_info.vl_col = fb_mode.xres;
-               if (fb_mode.yres < panel_info.vl_row)
-                       panel_info.vl_row = fb_mode.yres;
+               if (fb_mode.xres > panel_info.vl_col ||
+                       fb_mode.yres > panel_info.vl_row) {
+                       printf("video resolution from DT: %dx%d exceeds hardware limits: %dx%d\n",
+                               fb_mode.xres, fb_mode.yres,
+                               panel_info.vl_col, panel_info.vl_row);
+                       lcd_enabled = 0;
+                       return;
+               }
        }
        if (p->name != NULL)
                debug("Trying compiled-in video modes\n");
@@ -953,6 +957,25 @@ void lcd_ctrl_init(void *lcdbase)
                printf("\n");
                return;
        }
+       if (p->xres > panel_info.vl_col || p->yres > panel_info.vl_row) {
+               printf("video resolution: %dx%d exceeds hardware limits: %dx%d\n",
+                       p->xres, p->yres, panel_info.vl_col, panel_info.vl_row);
+               lcd_enabled = 0;
+               return;
+       }
+       panel_info.vl_col = p->xres;
+       panel_info.vl_row = p->yres;
+
+       switch(color_depth) {
+       case 8:
+               panel_info.vl_bpix = LCD_COLOR8;
+               break;
+       case 16:
+               panel_info.vl_bpix = LCD_COLOR16;
+               break;
+       default:
+               panel_info.vl_bpix = LCD_COLOR24;
+       }
 
        p->pixclock = KHZ2PICOS(refresh *
                (p->xres + p->left_margin + p->right_margin + p->hsync_len) *