The DMA API generally relies on a struct device to work properly, and
only barely works without one for legacy reasons. Pass the easily
available struct device from the platform_device to remedy this.
Signed-off-by: Christoph Hellwig
---
drivers/video/fbdev/da8xx-fb.c | 13 +++--
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/drivers/video/fbdev/da8xx-fb.c b/drivers/video/fbdev/da8xx-fb.c
index 43f2a4816860..ec62274b914b 100644
--- a/drivers/video/fbdev/da8xx-fb.c
+++ b/drivers/video/fbdev/da8xx-fb.c
@@ -1097,9 +1097,9 @@ static int fb_remove(struct platform_device *dev)
unregister_framebuffer(info);
fb_dealloc_cmap(>cmap);
- dma_free_coherent(NULL, PALETTE_SIZE, par->v_palette_base,
+ dma_free_coherent(par->dev, PALETTE_SIZE, par->v_palette_base,
par->p_palette_base);
- dma_free_coherent(NULL, par->vram_size, par->vram_virt,
+ dma_free_coherent(par->dev, par->vram_size, par->vram_virt,
par->vram_phys);
pm_runtime_put_sync(>dev);
pm_runtime_disable(>dev);
@@ -1425,7 +1425,7 @@ static int fb_probe(struct platform_device *device)
par->vram_size = roundup(par->vram_size/8, ulcm);
par->vram_size = par->vram_size * LCD_NUM_BUFFERS;
- par->vram_virt = dma_alloc_coherent(NULL,
+ par->vram_virt = dma_alloc_coherent(par->dev,
par->vram_size,
>vram_phys,
GFP_KERNEL | GFP_DMA);
@@ -1446,7 +1446,7 @@ static int fb_probe(struct platform_device *device)
da8xx_fb_fix.line_length - 1;
/* allocate palette buffer */
- par->v_palette_base = dma_alloc_coherent(NULL, PALETTE_SIZE,
+ par->v_palette_base = dma_alloc_coherent(par->dev, PALETTE_SIZE,
>p_palette_base,
GFP_KERNEL | GFP_DMA);
if (!par->v_palette_base) {
@@ -1532,11 +1532,12 @@ static int fb_probe(struct platform_device *device)
fb_dealloc_cmap(_fb_info->cmap);
err_release_pl_mem:
- dma_free_coherent(NULL, PALETTE_SIZE, par->v_palette_base,
+ dma_free_coherent(par->dev, PALETTE_SIZE, par->v_palette_base,
par->p_palette_base);
err_release_fb_mem:
- dma_free_coherent(NULL, par->vram_size, par->vram_virt, par->vram_phys);
+ dma_free_coherent(par->dev, par->vram_size, par->vram_virt,
+ par->vram_phys);
err_release_fb:
framebuffer_release(da8xx_fb_info);
--
2.20.1
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