fbdev/fsl-diu-fb: Output messages with fb_*() helpers

Fix cases were output helpers are called with struct fb_info.dev.
Use fb_*() helpers instead. Prepares fbdev for making struct
fb_info.dev optional.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Timur Tabi <timur@kernel.org>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230613110953.24176-16-tzimmermann@suse.de

drivers/video/fbdev/fsl-diu-fb.c

@@ -872,7 +872,7 @@ static int map_video_memory(struct fb_info *info)
 
 	p = alloc_pages_exact(smem_len, GFP_DMA | __GFP_ZERO);
 	if (!p) {
-		dev_err(info->dev, "unable to allocate fb memory\n");
+		fb_err(info, "unable to allocate fb memory\n");
 		return -ENOMEM;
 	}
 	mutex_lock(&info->mm_lock);
@@ -1145,7 +1145,7 @@ static int fsl_diu_set_par(struct fb_info *info)
 
 		/* Memory allocation for framebuffer */
 		if (map_video_memory(info)) {
-			dev_err(info->dev, "unable to allocate fb memory 1\n");
+			fb_err(info, "unable to allocate fb memory 1\n");
 			return -ENOMEM;
 		}
 	}
@@ -1277,14 +1277,14 @@ static int fsl_diu_ioctl(struct fb_info *info, unsigned int cmd,
 	if (!arg)
 		return -EINVAL;
 
-	dev_dbg(info->dev, "ioctl %08x (dir=%s%s type=%u nr=%u size=%u)\n", cmd,
+	fb_dbg(info, "ioctl %08x (dir=%s%s type=%u nr=%u size=%u)\n", cmd,
 		_IOC_DIR(cmd) & _IOC_READ ? "R" : "",
 		_IOC_DIR(cmd) & _IOC_WRITE ? "W" : "",
 		_IOC_TYPE(cmd), _IOC_NR(cmd), _IOC_SIZE(cmd));
 
 	switch (cmd) {
 	case MFB_SET_PIXFMT_OLD:
-		dev_warn(info->dev,
+		fb_warn(info,
 			"MFB_SET_PIXFMT value of 0x%08x is deprecated.\n",
 			MFB_SET_PIXFMT_OLD);
 		fallthrough;
@@ -1294,7 +1294,7 @@ static int fsl_diu_ioctl(struct fb_info *info, unsigned int cmd,
 		ad->pix_fmt = pix_fmt;
 		break;
 	case MFB_GET_PIXFMT_OLD:
-		dev_warn(info->dev,
+		fb_warn(info,
 			"MFB_GET_PIXFMT value of 0x%08x is deprecated.\n",
 			MFB_GET_PIXFMT_OLD);
 		fallthrough;
@@ -1375,7 +1375,7 @@ static int fsl_diu_ioctl(struct fb_info *info, unsigned int cmd,
 	}
 #endif
 	default:
-		dev_err(info->dev, "unknown ioctl command (0x%08X)\n", cmd);
+		fb_err(info, "unknown ioctl command (0x%08X)\n", cmd);
 		return -ENOIOCTLCMD;
 	}
 
@@ -1543,21 +1543,21 @@ static int install_fb(struct fb_info *info)
 	}
 
 	if (fsl_diu_check_var(&info->var, info)) {
-		dev_err(info->dev, "fsl_diu_check_var failed\n");
+		fb_err(info, "fsl_diu_check_var failed\n");
 		unmap_video_memory(info);
 		fb_dealloc_cmap(&info->cmap);
 		return -EINVAL;
 	}
 
 	if (register_framebuffer(info) < 0) {
-		dev_err(info->dev, "register_framebuffer failed\n");
+		fb_err(info, "register_framebuffer failed\n");
 		unmap_video_memory(info);
 		fb_dealloc_cmap(&info->cmap);
 		return -EINVAL;
 	}
 
 	mfbi->registered = 1;
-	dev_info(info->dev, "%s registered successfully\n", mfbi->id);
+	fb_info(info, "%s registered successfully\n", mfbi->id);
 
 	return 0;
 }