[PATCH 10/20] s3c2410fb: make use of default_display settings

[PATCH 10/20] s3c2410fb: make use of default_display settings

[Antonino A. Daplas]

From: Krzysztof Helt <krzysztof.h1@wp.pl>

This patch changes mode selection to always prefer default
mode if possible and always honor type of display
set by default mode settings.

This patch is required in case the same display modes
were defined for different panels (e.g. STN and TFT).

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
---

 drivers/video/s3c2410fb.c |   25 +++++++++++++++++--------
 1 files changed, 17 insertions(+), 8 deletions(-)

diff --git a/drivers/video/s3c2410fb.c b/drivers/video/s3c2410fb.c
index b2ba7a0..98da79c 100644
--- a/drivers/video/s3c2410fb.c
+++ b/drivers/video/s3c2410fb.c
@@ -172,19 +172,28 @@ static int s3c2410fb_check_var(struct fb
 	struct s3c2410fb_info *fbi = info->par;
 	struct s3c2410fb_mach_info *mach_info = fbi->dev->platform_data;
 	struct s3c2410fb_display *display = NULL;
+	struct s3c2410fb_display *default_display = mach_info->displays +
+						    mach_info->default_display;
+	int type = default_display->type;
 	unsigned i;
 
 	dprintk("check_var(var=%p, info=%p)\n", var, info);
 
 	/* validate x/y resolution */
-
-	for (i = 0; i < mach_info->num_displays; i++)
-		if (var->yres == mach_info->displays[i].yres &&
-		    var->xres == mach_info->displays[i].xres &&
-		    var->bits_per_pixel == mach_info->displays[i].bpp) {
-			display = mach_info->displays + i;
-			break;
-		}
+	/* choose default mode if possible */
+	if (var->yres == default_display->yres &&
+	    var->xres == default_display->xres &&
+	    var->bits_per_pixel == default_display->bpp)
+		display = default_display;
+	else
+		for (i = 0; i < mach_info->num_displays; i++)
+			if (type == mach_info->displays[i].type &&
+			    var->yres == mach_info->displays[i].yres &&
+			    var->xres == mach_info->displays[i].xres &&
+			    var->bits_per_pixel == mach_info->displays[i].bpp) {
+				display = mach_info->displays + i;
+				break;
+			}
 
 	if (!display) {
 		dprintk("wrong resolution or depth %dx%d at %d bpp\n",


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