fbdev/ep93xx-fb: Alloc DMA memory from hardware device

Pass the hardware device to the DMA helpers dma_alloc_wc(), dma_mmap_wc()
and dma_free_coherent(). The fbdev device that is currently being used is
a software device and does not provide DMA memory.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230613110953.24176-13-tzimmermann@suse.de

drivers/video/fbdev/ep93xx-fb.c

@@ -312,7 +312,7 @@ static int ep93xxfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
 	unsigned int offset = vma->vm_pgoff << PAGE_SHIFT;
 
 	if (offset < info->fix.smem_len) {
-		return dma_mmap_wc(info->dev, vma, info->screen_base,
+		return dma_mmap_wc(info->device, vma, info->screen_base,
 				   info->fix.smem_start, info->fix.smem_len);
 	}
 
@@ -423,7 +423,7 @@ static int ep93xxfb_alloc_videomem(struct fb_info *info)
 	/* Maximum 16bpp -> used memory is maximum x*y*2 bytes */
 	fb_size = EP93XXFB_MAX_XRES * EP93XXFB_MAX_YRES * 2;
 
-	virt_addr = dma_alloc_wc(info->dev, fb_size, &phys_addr, GFP_KERNEL);
+	virt_addr = dma_alloc_wc(info->device, fb_size, &phys_addr, GFP_KERNEL);
 	if (!virt_addr)
 		return -ENOMEM;
 
@@ -440,7 +440,7 @@ static int ep93xxfb_alloc_videomem(struct fb_info *info)
 			"has bit 27 set: cannot init framebuffer\n",
 			phys_addr);
 
-		dma_free_coherent(info->dev, fb_size, virt_addr, phys_addr);
+		dma_free_coherent(info->device, fb_size, virt_addr, phys_addr);
 		return -ENOMEM;
 	}
 
@@ -454,7 +454,7 @@ static int ep93xxfb_alloc_videomem(struct fb_info *info)
 static void ep93xxfb_dealloc_videomem(struct fb_info *info)
 {
 	if (info->screen_base)
-		dma_free_coherent(info->dev, info->fix.smem_len,
+		dma_free_coherent(info->device, info->fix.smem_len,
 				  info->screen_base, info->fix.smem_start);
 }