da8xx-fb: pass struct device to DMA API functions

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 <hch@lst.de>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

diff --git a/drivers/video/fbdev/da8xx-fb.c b/drivers/video/fbdev/da8xx-fb.c
index 43f2a48168604e542d45ab52972d708a2f52655a..ec62274b914b366b0f92687a5b255bdfd6c015db 100644 (file)
--- 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(&info->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->dev);
                pm_runtime_disable(&dev->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,
                                            &par->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,
                                                 &par->p_palette_base,
                                                 GFP_KERNEL | GFP_DMA);
        if (!par->v_palette_base) {
@@ -1532,11 +1532,12 @@ err_dealloc_cmap:
        fb_dealloc_cmap(&da8xx_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);