[PATCH 2/4] fbdev/efifb: Use screen_info pointer from device

[Thomas Zimmermann <tzimmermann@suse.de>]

Use the screen_info instance from the device instead of dereferencing
the global screen_info state. Decouples the driver from per-architecture
code. Duplicated the screen_info data, so that efifb can modify it at
will.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
---
 drivers/video/fbdev/efifb.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/video/fbdev/efifb.c b/drivers/video/fbdev/efifb.c
index 6cbb65bbe1110..d0ce357ff2684 100644
--- a/drivers/video/fbdev/efifb.c
+++ b/drivers/video/fbdev/efifb.c
@@ -358,7 +358,7 @@ static u64 bar_offset;
 
 static int efifb_probe(struct platform_device *dev)
 {
-	struct screen_info *si = &screen_info;
+	struct screen_info *si;
 	struct fb_info *info;
 	struct efifb_par *par;
 	int err, orientation;
@@ -368,6 +368,13 @@ static int efifb_probe(struct platform_device *dev)
 	char *option = NULL;
 	efi_memory_desc_t md;
 
+	si = dev_get_platdata(&dev->dev);
+	if (!si)
+		return -ENODEV;
+	si = devm_kmemdup(&dev->dev, si, sizeof(*si), GFP_KERNEL);
+	if (!si)
+		return -ENOMEM;
+
 	if (si->orig_video_isVGA != VIDEO_TYPE_EFI || pci_dev_disabled)
 		return -ENODEV;
 
-- 
2.43.0