fbdev: sh_mobile_lcdc: Use channel configuration to initialize fb device

Copy the x and y virtual resolutions from the channel information
instead of recomputing them.

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

1 files changed, 6 insertions, 4 deletions

diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c
index 67877ccadacb..68011b5596c5 100644
--- a/drivers/video/sh_mobile_lcdcfb.c
+++ b/drivers/video/sh_mobile_lcdcfb.c
@@ -2214,14 +2214,14 @@ sh_mobile_lcdc_channel_fb_init(struct sh_mobile_lcdc_chan *ch,
                 info->fix.ypanstep = 2;
 
         /* Initialize variable screen information using the first mode as
-         * default. The default Y virtual resolution is twice the panel size to
-         * allow for double-buffering.
+         * default.
          */
         var = &info->var;
         fb_videomode_to_var(var, mode);
         var->width = ch->cfg->panel_cfg.width;
         var->height = ch->cfg->panel_cfg.height;
-        var->yres_virtual = var->yres * 2;
+        var->xres_virtual = ch->xres_virtual;
+        var->yres_virtual = ch->yres_virtual;
         var->activate = FB_ACTIVATE_NOW;
 
         /* Use the legacy API by default for RGB formats, and the FOURCC API
@@ -2619,7 +2619,9 @@ sh_mobile_lcdc_channel_init(struct sh_mobile_lcdc_priv *priv,
                 num_modes = cfg->num_modes;
         }
 
-        /* Use the first mode as default. */
+        /* Use the first mode as default. The default Y virtual resolution is
+         * twice the panel size to allow for double-buffering.
+         */
         ch->format = format;
         ch->xres = mode->xres;
         ch->xres_virtual = mode->xres;