[ARM] pxafb: add support for FBIOPAN_DISPLAY by dma braching

[firefly-linux-kernel-4.4.55.git] / drivers / video / pxafb.h

diff --git a/drivers/video/pxafb.h b/drivers/video/pxafb.h
index 0981938682ef0ea931f8b38b4ba1f9ccc949b291..e0f90f4c467d2c83af05d6a54642412f1461717d 100644 (file)
--- a/drivers/video/pxafb.h
+++ b/drivers/video/pxafb.h
@@ -54,11 +54,14 @@ enum {
 #define PALETTE_SIZE   (256 * 4)
 #define CMD_BUFF_SIZE  (1024 * 50)
 
+/* NOTE: the palette and frame dma descriptors are doubled to allow
+ * the 2nd set for branch settings (FBRx)
+ */
 struct pxafb_dma_buff {
        unsigned char palette[PAL_MAX * PALETTE_SIZE];
        uint16_t cmd_buff[CMD_BUFF_SIZE];
-       struct pxafb_dma_descriptor pal_desc[PAL_MAX];
-       struct pxafb_dma_descriptor dma_desc[DMA_MAX];
+       struct pxafb_dma_descriptor pal_desc[PAL_MAX * 2];
+       struct pxafb_dma_descriptor dma_desc[DMA_MAX * 2];
 };
 
 struct pxafb_info {
@@ -71,7 +74,7 @@ struct pxafb_info {
        struct pxafb_dma_buff   *dma_buff;
        size_t                  dma_buff_size;
        dma_addr_t              dma_buff_phys;
-       dma_addr_t              fdadr[DMA_MAX];
+       dma_addr_t              fdadr[DMA_MAX * 2];
 
        void __iomem            *video_mem;     /* virtual address of frame buffer */
        unsigned long           video_mem_phys; /* physical address of frame buffer */