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[v2,05/19] fbdev/au1200fb: Use struct fb_info.screen_buffer

Message ID 20230428122452.4856-6-tzimmermann@suse.de
State New
Headers show
Series drm,fbdev: Use fbdev's I/O helpers | expand

Commit Message

Thomas Zimmermann April 28, 2023, 12:24 p.m. UTC 
Use info->screen_buffer when reading and writing framebuffers in
system memory. It's the correct pointer for this address space.

The struct fb_info has a union to store the framebuffer memory. This can
either be info->screen_base if the framebuffer is stored in I/O memory,
or info->screen_buffer if the framebuffer is stored in system memory.

As the driver operates on the latter address space, it is wrong to use
.screen_base and .screen_buffer must be used instead. This also gets
rid of casting needed due to not using the correct data type.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
---
 drivers/video/fbdev/au1200fb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/drivers/video/fbdev/au1200fb.c b/drivers/video/fbdev/au1200fb.c
index b6b22fa4a8a0..847f82ed52ff 100644
--- a/drivers/video/fbdev/au1200fb.c
+++ b/drivers/video/fbdev/au1200fb.c
@@ -1568,7 +1568,7 @@  static int au1200fb_init_fbinfo(struct au1200fb_device *fbdev)
 	fbi->fix.mmio_len = 0;
 	fbi->fix.accel = FB_ACCEL_NONE;
 
-	fbi->screen_base = (char __iomem *) fbdev->fb_mem;
+	fbi->screen_buffer = fbdev->fb_mem;
 
 	au1200fb_update_fbinfo(fbi);