fbdev/sh7760fb: Output messages with fb_dbg()

Fix cases were output helpers are called with struct fb_info.dev.
Use fb_dbg() instead. Prepares fbdev for making struct fb_info.dev
optional.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230613110953.24176-27-tzimmermann@suse.de

drivers/video/fbdev/sh7760fb.c

@@ -207,7 +207,7 @@ static int sh7760fb_set_par(struct fb_info *info)
 
 	/* rotate only works with xres <= 320 */
 	if (par->rot && (vm->xres > 320)) {
-		dev_dbg(info->dev, "rotation disabled due to display size\n");
+		fb_dbg(info, "rotation disabled due to display size\n");
 		par->rot = 0;
 	}
 
@@ -226,7 +226,7 @@ static int sh7760fb_set_par(struct fb_info *info)
 	if (ret)
 		return ret;
 
-	dev_dbg(info->dev, "%dx%d %dbpp %s (orientation %s)\n", hdcn,
+	fb_dbg(info, "%dx%d %dbpp %s (orientation %s)\n", hdcn,
 		vdln, bpp, gray ? "grayscale" : "color",
 		par->rot ? "rotated" : "normal");
 
@@ -306,7 +306,7 @@ static int sh7760fb_set_par(struct fb_info *info)
 	if (((ldmtr & 0x003f) >= LDMTR_DSTN_MONO_8) &&
 	    ((ldmtr & 0x003f) <= LDMTR_DSTN_COLOR_16)) {
 
-		dev_dbg(info->dev, " ***** DSTN untested! *****\n");
+		fb_dbg(info, " ***** DSTN untested! *****\n");
 
 		dstn_off = stride;
 		if (par->rot)
@@ -326,17 +326,17 @@ static int sh7760fb_set_par(struct fb_info *info)
 
 	sh7760fb_blank(FB_BLANK_UNBLANK, info);	/* panel on! */
 
-	dev_dbg(info->dev, "hdcn  : %6d htcn  : %6d\n", hdcn, htcn);
-	dev_dbg(info->dev, "hsynw : %6d hsynp : %6d\n", hsynw, hsynp);
-	dev_dbg(info->dev, "vdln  : %6d vtln  : %6d\n", vdln, vtln);
-	dev_dbg(info->dev, "vsynw : %6d vsynp : %6d\n", vsynw, vsynp);
-	dev_dbg(info->dev, "clksrc: %6d clkdiv: %6d\n",
+	fb_dbg(info, "hdcn  : %6d htcn  : %6d\n", hdcn, htcn);
+	fb_dbg(info, "hsynw : %6d hsynp : %6d\n", hsynw, hsynp);
+	fb_dbg(info, "vdln  : %6d vtln  : %6d\n", vdln, vtln);
+	fb_dbg(info, "vsynw : %6d vsynp : %6d\n", vsynw, vsynp);
+	fb_dbg(info, "clksrc: %6d clkdiv: %6d\n",
 		(par->pd->ldickr >> 12) & 3, par->pd->ldickr & 0x1f);
-	dev_dbg(info->dev, "ldpmmr: 0x%04x ldpspr: 0x%04x\n", par->pd->ldpmmr,
+	fb_dbg(info, "ldpmmr: 0x%04x ldpspr: 0x%04x\n", par->pd->ldpmmr,
 		par->pd->ldpspr);
-	dev_dbg(info->dev, "ldmtr : 0x%04x lddfr : 0x%04x\n", ldmtr, lddfr);
-	dev_dbg(info->dev, "ldlaor: %ld\n", stride);
-	dev_dbg(info->dev, "ldsaru: 0x%08lx ldsarl: 0x%08lx\n", sbase, ldsarl);
+	fb_dbg(info, "ldmtr : 0x%04x lddfr : 0x%04x\n", ldmtr, lddfr);
+	fb_dbg(info, "ldlaor: %ld\n", stride);
+	fb_dbg(info, "ldsaru: 0x%08lx ldsarl: 0x%08lx\n", sbase, ldsarl);
 
 	return 0;
 }
@@ -401,7 +401,7 @@ static int sh7760fb_alloc_mem(struct fb_info *info)
 	} else if (bpp > 8)
 		vram *= 2;
 	if ((vram < 1) || (vram > 1024 * 2048)) {
-		dev_dbg(info->dev, "too much VRAM required. Check settings\n");
+		fb_dbg(info, "too much VRAM required. Check settings\n");
 		return -ENODEV;
 	}