target/linux/bcm27xx/patches-6.1/950-0605-rpisense-fb-Add-explicit-fb_deferred_io_mmap-hook.patch

   1 From 4b9950c6574aa5c9302b3b8bbf44fd31ee1cad7a Mon Sep 17 00:00:00 2001
   2 From: Phil Elwell <phil@raspberrypi.com>
   3 Date: Mon, 27 Mar 2023 10:25:25 +0100
   4 Subject: [PATCH] rpisense-fb: Add explicit fb_deferred_io_mmap hook
   5
   6 As of commit [1], introduced in 5.18, fbdev drivers that use
   7 deferred IO and need mmap support must include an explicit fb_mmap
   8 pointer to the fb_deferred_io_mmap.
   9
  10 Signed-off-by: Phil Elwell <phil@raspberrypi.com>
  11
  12 [1] 590558510327 ("fbdev: Put mmap for deferred I/O into drivers")
  13 ---
  14  drivers/video/fbdev/rpisense-fb.c | 1 +
  15  1 file changed, 1 insertion(+)
  16
  17 --- a/drivers/video/fbdev/rpisense-fb.c
  18 +++ b/drivers/video/fbdev/rpisense-fb.c
  19 @@ -191,6 +191,7 @@ static struct fb_ops rpisense_fb_ops = {
  20         .fb_copyarea    = rpisense_fb_copyarea,
  21         .fb_imageblit   = rpisense_fb_imageblit,
  22         .fb_ioctl       = rpisense_fb_ioctl,
  23 +       .fb_mmap        = fb_deferred_io_mmap,
  24  };
  25
  26  static int rpisense_fb_probe(struct platform_device *pdev)