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authorGeert Uytterhoeven <geert@linux-m68k.org>2022-07-11 17:50:25 +0200
committerHelge Deller <deller@gmx.de>2022-07-18 07:56:17 +0200
commitf3bd0c2b637e3c4f733ff5ac5175cbcef96c2671 (patch)
treee43c87b320f929ae5795160ef594027462d5c460 /drivers/video
parent6a7d270e901965b0f8643db885cdc2e6e93b8621 (diff)
downloadlinux-f3bd0c2b637e3c4f733ff5ac5175cbcef96c2671.tar.gz
video: fbdev: atari: Simplify atafb_pan_display()
The fb_pan_display() function in the core already takes care of
validating the panning parameters before calling the driver's
.fb_pan_display() callback, and of updating the panning state
afterwards, so there is no need to repeat that in the driver.

Remove the duplicate code.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Michael Schmitz <schmitzmic@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Diffstat (limited to 'drivers/video')
-rw-r--r--drivers/video/fbdev/atafb.c29
1 files changed, 2 insertions, 27 deletions
diff --git a/drivers/video/fbdev/atafb.c b/drivers/video/fbdev/atafb.c
index 102c727cedc0..c0683d2a4efa 100644
--- a/drivers/video/fbdev/atafb.c
+++ b/drivers/video/fbdev/atafb.c
@@ -2407,35 +2407,10 @@ static void atafb_set_disp(struct fb_info *info)
 static int
 atafb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
 {
-	int xoffset = var->xoffset;
-	int yoffset = var->yoffset;
-	int err;
-
-	if (var->vmode & FB_VMODE_YWRAP) {
-		if (yoffset < 0 || yoffset >= info->var.yres_virtual || xoffset)
-			return -EINVAL;
-	} else {
-		if (xoffset + info->var.xres > info->var.xres_virtual ||
-		    yoffset + info->var.yres > info->var.yres_virtual)
-			return -EINVAL;
-	}
-
-	if (fbhw->pan_display) {
-		err = fbhw->pan_display(var, info);
-		if (err)
-			return err;
-	} else
+	if (!fbhw->pan_display)
 		return -EINVAL;
 
-	info->var.xoffset = xoffset;
-	info->var.yoffset = yoffset;
-
-	if (var->vmode & FB_VMODE_YWRAP)
-		info->var.vmode |= FB_VMODE_YWRAP;
-	else
-		info->var.vmode &= ~FB_VMODE_YWRAP;
-
-	return 0;
+	return fbhw->pan_display(var, info);
 }
 
 /*